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Question 1
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The pressure recorded by a constant volume gas thermometer at a kelvin
temperature T is 5.60 x 10 4Nm -2. Calculate T if the pressure at the triple point, 273.16
K, is 5.00 x 10 4 Nm -2.
Select one:
a. 305.3 K
b. 305.9 K
c. 294.6 K
d. 311.4 K
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The correct answer is: 305.9 K
Question 2
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A 500kg car accelerates uniformly from rest, reaching a speed of 30m/s in 6s. Calculate
the distance travelled by the car.
Select one:
a. 90m
b. 80m
c. 30m
d. 150m
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The correct answer is: 90m
Question 3
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A quantity of a diatomic gas expands adiabatically from an initial pressure of 3 x 10 5 Nm -
2 and volume of 3 x 10 -3m 3 at temperature 20 oC to thrice its original volume. The work
done by the gas is (hint: for a diatomic gas g = 1.4).

Select one:
a. 791J
b. 801J
c. 810J
d. -810J
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The correct answer is: 801J
Question 4
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Water moving with a speed of 5.0m/s through a pipe with a cross-sectional area of
4.0cm 2 gradually descends 10m as the pipe increases in area to 8.0cm 2. Calculate the
speed of flow and pressure at the lower level if the pressure at the upper level is 1.50 x
10 5 Pa.
Select one:
a. 3.0m/s, 1.2 x 10 5 Pa
b. 2.0m/s, 1.8 x 10 5 Pa
c. 2.5m/s, 2.6 x 10 5 Pa
d. 4.1m/s, 3.0 x 10 5 Pa
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The correct answer is: 2.5m/s, 2.6 x 10 5 Pa
Question 5
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A container of volume 0.05m 3 is full of ice. When the ice melts into water, how many kg
of water should be added to fill it up? (density of ice = 900kgm -3; density of water =
1000kgm -3).
Select one:
a. 5.0kg
b. 45.0kg
c. 50.0kg
d. 95.0kg
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The correct answer is: 5.0kg
Question 6
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A train moving with a velocity of 10m/s accelerates uniformly at 1m/s 2 until it reaches a
velocity of 15m/s. Calculate the time taken.
Select one:
a. 2s
b. 3s
c. 4s
d. 5s
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The correct answer is: 5s
Question 7
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A 0.03 kg ice cube was melted at 0°C by an application of heat which further increased
the temperature of the resulted water to 30°C. Calculate the total heat supplied to the
system within this temperature range (Hint: Specific latent heat of fusion of water
is 3.34 x 10 5 Jkg -1, specific heat capacity of water is 4200 Jkg -1K -1.)
Select one:
a. 2.72 x 10 4J
b. 1.38 x 10 4 J
c. 5.44 x 10 3 J
d. 2.34 x 10 4J
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The correct answer is: 1.38 x 10 4 J
Question 8
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Which of the following is the correct units of thermal conductivity?
Select one:
a. kgms -2
b. Js -1m -1K -1
c. JK -1
d. Ns -1m -1K -1
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The correct answer is: Js -1m -1K -1
Question 9
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The amount of heat required to raise the temperature of a 1 kg body through 1°C is
Select one:
a. thermal energy
b. thermal capacity
c. heat lost
d. specific heat capacity
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The correct answer is: specific heat capacity
Question 10
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The acceleration of a moving object is equal to the:
Select one:
a. gradient of a displacement-time graph
b. gradient of a velocity-time graph

c. area below a speed-time graph
d. area below a displacement-time graph
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The correct answer is: gradient of a velocity-time graph
Question 11
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A force of 6N acts horizontally on a stationary mass of 2kg for 4s. The kinetic energy
gained by the mass is:
Select one:
a. 12J
b. 24J
c. 48J
d. 144J
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Question 12
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In a gas experiment, the pressure of the gas is plotted against the reciprocal of the
volume of the gas at a constant temperature. The unit of the slope of the resulting curve
is
Select one:
a. newton
b. newton/m
c. joule
d. newton/m 3
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The correct answer is: joule
Question 13
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A constant force 20N moves a body of mass 2kg with a constant speed of 0.2m/s.
Calculate the power expended.
Select one:
a. 4W
b. 0.8W
c. 100W
d. 50W
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The correct answer is: 4W
Question 14
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The inner radius of a hollow cylinder is 10cm, the outer radius is 20cm, and the length is
30cm. What is the radius of a thin cylindrical shell of equal mass that would have the
same moment of inertia as the hollow cylinder?
Select one:
a. 22.3cm
b. 20cm
c. 10cm
d. 15.8cm
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The correct answer is: 15.8cm
Question 15
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Which of the under listed quantities has the dimension ML 2 T -3?
Select one:
a. moment of a force
b. power
c. acceleration
d. moment of a force and work
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The correct answer is: power
Question 16
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What is the unit of the quantity of electricity?
Select one:
a. the coulomb
b. the volt
c. the ampere
d. the ohm
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The correct answer is: the coulomb
Question 17
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How much work is required for a 84kg sprinter to accelerate from rest to 2.1m/s?
Select one:
a. 200.0 J
b. 185.2 J
c. 179.1 J
d. 187.2 J
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The correct answer is: 185.2 J
Question 18
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A car accelerates uniformly in a straight line with acceleration 10m/s 2 and travels 150m
in a time interval of 5s. How far will it travel in the next 5s?
Select one:
a. 150m
b. 400m
c. 300m
d. 500m
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Question 19
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Calculate the rotational inertia of a wheel that has a kinetic energy of 24,400J when
rotating at 602 rev/min.
Select one:
a. 24.56kgm 2
b. 6.14kgm 2
c. 3.07kgm 2
d. 12.3kgm 2
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The correct answer is: 12.3kgm 2
Question 20
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Assuming an isothermal atmosphere, the variation of pressure p with altitude h is given
as dp/ dh = - ñg where ñ is the air density. Given that pV = mRT and p o is the pressure at
the Earth’s surface, the atmospheric pressure at any height may be written as:
Select one:
a. p = p oexp(- gh/ RT)
b. p = p oexp(- gR/ hT)
c. p = p oexp(- ghT/ R)
d. p = p oexp( RT/ gh)
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The correct answer is: p = p oexp(- gh/ RT)
Question 21
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Satellite X moves around Earth in a circular orbit of radius R. Satellite Y is also in a
circular orbit around Earth, and it completes one orbit for every eight orbits completed
by satellite X. What is the orbital radius of satellite Y?
Select one:
a. ¼R
b. ½R
c. 2R
d. 4R
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The correct answer is: 4R
Question 22
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Calculate the maximum efficiency of a steam engine if the temperature of the input
steam is 185K, and the temperature of the exhaust is 90K.
Select one:
a. 40.7%
b. 26.2%
c. 51.4%
d. 20.7%
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The correct answer is: 51.4%
Question 23
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A stone is thrown vertically upwards with an initial velocity of 20m/s. Find the time taken
for the stone to reach its highest point and the distance travelled.
Select one:
a. 5s, 50m
b. 4s, 40m
c. 3s, 30m
d. 2s, 20m
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The correct answer is: 2s, 20m
Question 24
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A proposed communication satellite would revolve round the Earth in a circular orbit in
the equatorial plane at a height of 35880km above the Earth’s surface. Find the period of
revolution of the satellite. M e = 5.98 x 10 24 kg, R e = 6370 km, G = 6.6 x 10 -11Nm 2kg -2
Select one:
a. 23 hrs
b. 22 hrs
c. 24 hrs
d. 25 hrs
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The correct answer is: 24 hrs
Question 25
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It is impossible for any self-acting machine working in a cyclical process unaided by an
external agency to make heat pass from one body to another at a higher temperature.
This statement is known as
Select one:
a. Clausius’ statement of the second law of thermodynamics
b. Kelvin’s statement of the second law of thermodynamics
c. Planck’s statement of the second law of thermodynamics
d. Kelvin’s statement of the first law of thermodynamics
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The correct answer is: Clausius’ statement of the second law of thermodynamics
Question 26
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Water enters a pipe of 4.0cm inlet diameter at a velocity of 5m/s and pressure 2.5 x
10 5 N/m 2. The outlet of the pipe 2cm in diameter is 6m above the inlet. Find the
pressure at the outlet.
Select one:
a. 2500N/m 2
b. 3000N/m 2
c. 5500N/m 2
d. 4500N/m 2
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The correct answer is: 2500N/m 2
Question 27
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Which of the following physical quantities is NOT a vector?
Select one:
a. velocity
b. speed
c. force
d. electric field intensity
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The correct answer is: speed
Question 28
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A car moving at 20m/s slows uniformly to a speed of 5m/s in a time of 10s. Determine the
distance travelled in the fifth second.
Select one:
a. 5.50 m
b. 20.50 m
c. 13.25 m
d. 10.50 m
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The correct answer is: 13.25 m
Question 29
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The relative speed of two balls after colliding is 2m/s. if the speeds of the two balls
before collision are 5m/s and 15m/s respectively, calculate the coefficient of restitution
between the two balls.
Select one:
a. 0.6
b. 0.2
c. 0.5
d. 0.3
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The correct answer is: 0.2
Question 30
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Which of the following statements are entirely correct?
Select one:
a. The temperature of a body is a measure of its hotness or coldness. Heat is the net
energy transferred from one object to another because of a temperature difference.
b. The temperature of a body is a measure of its hotness or coldness. Heat is the net
energy transferred from one object to another because the temperature is constant in
both objects.
c. The temperature of a body is the net energy transferred from one object to another
because of a temperature difference. Heat is a measure of the hotness or coldness of a
body.
d. The temperature of a body is a measure in joules. Heat is the energy transferred from
one object to another because the temperature is the same.
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The correct answer is: The temperature of a body is a measure of its hotness or coldness.
Heat is the net energy transferred from one object to another because of a temperature
difference.
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Question 1
Correct
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Question text
In a gas experiment, the pressure of the gas is plotted against the reciprocal of the
volume of the gas at a constant temperature. The unit of the slope of the resulting curve
is
Select one:
a. newton
b. newton/m
c. joule
d. newton/m 3
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The correct answer is: joule
Question 2
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The law of conservation of linear momentum states that
Select one:
a. during collisions in which the colliding objects and the product bodies are not acted
upon by an externally applied force, the sum of linear momentum before collision is equal
to the sum of linear momentum after the collision.
b. during collisions in which the colliding objects and the product bodies are acted upon
by an externally applied force, the sum of linear momentum before collision is equal to
the sum of linear momentum after the collision.
c. during collisions in which the colliding objects and the product bodies are not acted
upon by an externally applied force, the sum of linear momentum before collision is
greater than the sum of linear momentum after the collision.
d. during collisions in which the colliding objects and the product bodies are acted upon
by an externally applied force, the sum of linear momentum before collision is less than
the sum of linear momentum after the collision.
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The correct answer is: during collisions in which the colliding objects and the product
bodies are not acted upon by an externally applied force, the sum of linear momentum
before collision is equal to the sum of linear momentum after the collision.
Question 3
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A truck travelled 400 m north in 80 s, and then it travelled 300 m east in 70 s. The
magnitude of the average velocity of the truck was most nearly
Select one:
a. 1.2 m/s
b. 3.3 m/s
c. 4.6 m/s
d. 6.6 m/s
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The correct answer is: 3.3 m/s
Question 4
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A log of wood of volume 0.1m 3 and density of 700kgm -3 floats in water of density
1000kgm -3. Calculate the mass of water displaced by the log.
Select one:
a. 61kg
b. 28.9kg
c. 21kg
d. 70kg
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The correct answer is: 70kg
Question 5
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The pressure recorded by a constant volume gas thermometer at a kelvin
temperature T is 5.80 x 10 4Nm -2. Calculate T if the pressure at the triple point, 273.16 K,
is 5.20 x 10 4 Nm -2.
Select one:
a. 304.7 K
b. 312 K
c. 273 K
d. 549 K
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Question 6
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A copper wire LM is fused at the end M to an iron wire MN. The copper wire has length
0.9m and cross-sectional area 0.9 x 10 -6m 2. The iron wire has length 1.4m and cross-
sectional area 1.3 x 10 -6m 2. When the compound wire is stretched, its total length
increases by 0.01m. Calculate the ratio of the extensions of the two wires. [Young’s
moduli for copper and iron are 1.3 x 10 11N/m 2 and 2.1 x 10 11N/m 2, respectively].
Select one:
a. 1.5
b. 3.0
c. 4.5
d. 1.0
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Question 7
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Find the angle between two vectors A = 2 i + 3 j + 4 k and B = i – 2 j + 3 k.
Select one:
a. 46.6°
b. 56.0°
c. 39.7°
d. 0.397°
e. 66.6°
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The correct answer is: 66.6°
Question 8
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A car starts from rest and accelerates uniformly to a speed of 20m/s in a time of 4.0s.
Find the angular acceleration of its 15cm radius wheels and the number of rotations one
wheel makes in this time.
Select one:
a. 33.3 rad/s 2, 66.4 rad
b. 33.3 rad/s 2, 44.1 rad
c. 16.72 rad/s 2, 44.1 rad
d. 16.72 rad/s 2, 266.4 rad
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The correct answer is: 33.3 rad/s 2, 66.4 rad
Question 9
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A car of mass 1000kg is accelerating at 3m/s 2. If the resistance to the motion is 1000N,
what is the force due to the engine?
Select one:
a. 1000N
b. 2000N
c. 4000N
d. 3000N
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The correct answer is: 4000N
Question 10
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A wire of radius 0.2mm is extended by 0.1% of its length when it supports a load of 1kg.
Calculate Young’s modulus for the material of the wire.
Select one:
a. 7.8 x 10 10N/m 2
b. 7.8 x 10 4N/m 2
c. 5.4 x 10 10N/m 2
d. 5.4 x 10 4N/m 2
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The correct answer is: 7.8 x 10 10N/m 2
Question 11
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The flywheel of a stationary engine has a moment of inertia of 60kgm 2. What is the
kinetic energy if its angular acceleration is 2rads -2?
Select one:
a. 10J
b. 20J
c. 30J
d. 15J
e. 60J
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Question 12
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When a force acts on an object, it produces acceleration which may be given
as a = F/ m where F is a force on the object and m is the mass of the object. This is
otherwise known as:
Select one:
a. First law of motion
b. Newton’s second law

c. Third law
d. No correct option
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The correct answer is: Newton’s second law
Question 13
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A block of mass 3.5kg is pushed by a force of magnitude 25N along a frictionless floor by
means of a cord which makes angle 60° with the horizontal. Calculate the magnitude of
the acceleration of the block.
Select one:
a. 7.14m/s 2
b. 6.19m/s 2
c. 3.57m/s 2
d. 10.00m/s 2
Feedback
The correct answer is: 3.57m/s 2
Question 14
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Given that a vector A of magnitude 4 units, lying in the x- y plane makes an angle of
30° with the x-axis, as shown in Figure 2.16. Calculate its components along
the x, y and z-axes ( A x, A y, A z).
Select one:
a.
b.
c.
d.
e.
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The correct answer is:
Question 15
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If vectors A = 2 i +3 j - k, and B = 4 i - 2 j + 3k, find their dot product .
Select one:
a. -11
b. 6 i
c. 1 j
d. -1
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The correct answer is: -1
Question 16
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A 15kg block has a constant acceleration of 2.2m/s 2 down a 30° incline. What is the
magnitude of the friction force on the block?
Select one:
a. 33N
b. 41N
c. 74N
d. 130N
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Question 17
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A wire with cross-sectional area 0.02m 2 was stretched by a 2.5N force. Calculate Young’s
modulus if the wire increased in length to 3/ 2 of its original length.
Select one:
a. 400Nm -2
b. 250Nm -2
c. 100Nm -2
d. 300Nm -2
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The correct answer is: 250Nm -2
Question 18
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The displacement x( t) of a particle as a function of time t is given as .

Find the displacement, velocity and acceleration at t = 0.
Select one:
a. 0, 0, 12m/s 2
b. 12m, 0, 12m/s 2
c. 0, 0, -12m/s 2
d. 0, 12m/s, 0
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The correct answer is: 0, 0, 12m/s 2
Question 19
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Which of the following is correct? In fluids, pressure:
Select one:
a. decreases with height, increases with depth and independent of area.
b. increases with height, increases with depth and depend on the area
c. decreases with height, decreases with depth and depend on the area
d. increases with height, decreases with depth and independent of the area
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The correct answer is: decreases with height, increases with depth and independent of
area.
Question 20
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If water is flowing through a pipe of diameter 2m, with a velocity of 20m/s, calculate the
value of Reynold’s Number. Assume the density and coefficient of viscosity of water are
10 3kgm -3 and 10 -4Nsm -2, respectively.
Select one:
a. 2.0 x 10 8
b. 3.5 x 10 8
c. 4.0 x 10 8
d. 5.0 x 10 8
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The correct answer is: 4.0 x 10 8
Question 21
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A compact disc accelerates uniformly from rest to an angular speed of 400rpm in 2.50s.
Calculate the angular acceleration.
Select one:
a. 16.72rad/s 2
b. 6.72rad/s 2
c. 7.2rad/s 2
d. 0.0rad/s 2
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The correct answer is: 16.72rad/s 2
Question 22
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A mango is dropped from a tree 80m high, with zero initial speed; 1.0s later another
coconut is thrown vertically downward (with non-zero initial speed). If both fruits strike
the ground at the same time, calculate the initial speed with which the second coconut is
thrown.
Select one:
a. 22.8m/s
b. 21.9m/s
c. 11.7m/s
d. 45.6m/s
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The correct answer is: 11.7m/s
Question 23
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An elementary particle is projected into space and travelled as r = ( t 3 + 2 t) i – 3e –2t j+2
sin5 t k. Find its acceleration at t = 0.
Select one:
a. –12 j
b. –12 i
c. 12 k
d. –12 k
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The correct answer is: –12 j
Question 24
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A microwave oven has a rotating plate revolving at 900rpm which slows down uniformly to
300rpm while making 50 revolutions. Find (a) the angular acceleration and (b) the time
required to turn through these 50 revolutions.
Select one:
a. -4.5ðrad/s 2, 5.0s
b. 4.5ðrad/s 2, 5.0s
c. -4.0ðrad/s 2, 5.0s
d. 4.0ðrad/s 2, 5.0s
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The correct answer is: -4.0ðrad/s 2, 5.0s
Question 25
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Compute the energy stored in a catapult made of two identical strips of rubber, each of
original length 50 cm and cross-sectional area . The catapult is stretched 20
cm to fire a stone of mass 0.25 kg. (The Young’s modulus for the rubber is )
Select one:
a.
b.
c.
d.
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The correct answer is:
Question 26
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In an experiment, the voltmeter reads 12V, the ammeter reads 4.0A and the block, mass
1.0kg, rises by 16°C in 300s. Calculate the specific heat capacity of the metal.
Select one:
a. 9Jkg -1K -1
b. 90Jkg -1K -1
c. 9000Jkg -1K -1
d. 900Jkg -1K -1
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The correct answer is: 900Jkg -1K -1
Question 27
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Given that find the triple product

Select one:
a. -11k
b. 11k
c. -11
d. 11
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Question 28
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A log of wood of volume 0.1m 3 and density of 700kgm -3 floats in water of density
1000kgm -3. Calculate the weight of the log.
Select one:
a. 670N
b. 700N
c. 2100N
d. 1001N
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Question 29
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A Carnot engine has the same efficiency (i) between 400 K and 500 K and (ii) between T K
and 900 K. Calculate the temperature T of the sink.
Select one:
a. 360 K
b. 540 K
c. 720 K
d. 810 K
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The correct answer is: 720 K
Question 30
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A car is accelerating uniformly as it passes two points A and B, which are 30m apart. The
time taken between the two points is 4.0s, and the car’s speed at point A is 5.0m/s. Find
the car’s acceleration.
Select one:
a. 0.25m/s 2
b. 1.35m/s 2
c. 5.25m/s 2
d. 1.25m/s 2
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Practice Questions For Excellent Result
Question 1
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question
Question text
Bernoulli’s Equation is based upon
Select one:
a. conservation of energy. Correct
b. conservation of momentum.
c. the second law of motion.
d. the third law of motion.
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The correct answer is: conservation of energy.
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question
Question text
A train changes its position ( x) as a function of time ( t) as follows: x = 20 + 5.0 t 2, with x in meters. Find
the average velocity between t 1 = 1.0s and t 2 = 2.0s.
Select one:
a. 15m/s
b. 20m/s
c. 30m/s
d. 5m/s
Feedback
The correct answer is: 15m/s
Question 3
Correct
question
Question text
When we touch a piece of metal and a piece of wood that are placed in the same room, the piece of
metal feels much colder than the piece of wood. This happens because of the difference in
Select one:
a. Specific heat
b. Temperature
c. Density
d. Thermal conductivity Correct
Feedback
The correct answer is: Thermal conductivity
Question 4
Correct
question
Question text
Find the mass of air inside a room measuring 10m × 8m × 3m, if the density of air is 1.28kgm -3.
Select one:
a. 307.2kg Correct
b. 240.0kg
c. 128.0kg
d. 250.0kg
Feedback
Question 5
Correct
question
Question text
A projectile is launched with an initial velocity of 35 m/s at an angle of 40° to the horizontal, find total
time of flight. (Take g = 9.8 m/s 2).
Select one:
a. 25.8s
b. 4.59s Correct
c. 123.1s
d. 34.8s
Feedback
The correct answer is: 4.59s
Question 6
Not answered
Marked out of 1.00
question
Question text
A block of mass m 1 = 2kg on a smooth horizontal surface which is pulled by a string which is attached to
another block m 2 = lkg hanging over a pulley, as shown in Figure below. The acceleration of the system
and the tension in the string are given as:
mc221-1.jpg
Select one:
a. 2.2ms -2; 60N
b. 3.3ms -2; 6N
c. 4ms -2 6.5N
d. 3.3ms -2; 6.7N
Feedback
The correct answer is: 3.3ms -2; 6.7N
Question 7
Not answered
Marked out of 1.00
question
Question text
Find the angular speed of any point on one of the blades of a fan turning at a rate of 300rpm. Find the
tangential speed of the tip of the fan blade if the distance from the centre to the tip is 15.0cm.
Select one:
a. 5027.2 rad/s, 31.42m/s
b. 31.42 rad/s, 4.71m/s
c. 800 rad/s, 42.9m/s
d. 10.5 rad/s, 4.71m/s
Feedback
The correct answer is: 31.42 rad/s, 4.71m/s
Question 8
Not answered
Marked out of 1.00
question
Question text
A large reservoir tank is filled with water to height of 165cm from the tap located near its base. If the
cross-sectional area of the tap is 1.26 x 10 -3m 2, calculate the velocity of flow from the tap and the
volume of water leaving the tap per second.
Select one:
a. 32.34 ms -1, 4.075 x 10 -2 m 3 s -1
b. 5.687 ms -1, 7.165 x 10 -3 m 3 s -1
c. 32.34 ms -1, 7.165 x 10 -3 m 3s -1
d. 5.687 ms -1, 4.075 x 10 -2 m 3s -1
Feedback
The correct answer is: 5.687 ms -1, 7.165 x 10 -3 m 3 s -1
Question 9
Not answered
Marked out of 1.00
question
Question text
A horizontal force of 5.00N is applied to a 2.00kg block initially at rest on a rough horizontal surface.
What is its acceleration if the coefficient of friction is 0.2?
Select one:
a. 2.0m/s 2
b. 1.96m/s 2
c. 0.50m/s 2
d. 3.5m/s 2
Feedback
Question 10
Incorrect
question
Question text
Determine the Poisson’s ratio of the solid material of Young’s modulus 7.5 x 10 10Nm -2 and shear
modulus 2.52 x 10 10Nm -2.
Select one:
a. 4.14
b. 0.15 Incorrect
c. 0.49
d. 2.98
Feedback
Question 11
Not answered
Marked out of 1.00

question
Question text
A 2.50-kg mass is observed to accelerate at 16.0m/s 2 in a direction 39.0° north of east. The force F 2
acting on the mass has a magnitude of 25.2N and is directed north. Determine the magnitude and
direction of the force F 1 acting on the mass.
mc240-1.jpg
Select one:
a. 31.1N east
b. 32.3N east
c. 32.3N west
d. 25.2N east
Feedback
The correct answer is: 31.1N east
Question 12
Not answered
Marked out of 1.00
question
Question text
A circular hole 4cm in diameter is cut in the side of a large cylinder filled with water 10m below the
water level. Find the volume discharged per unit time.
Select one:
a. 0.0178 m 3/s
b. 0.178 m 3/s
c. 1.067 m 3/s
d. 2.007 m 3/s
Feedback
The correct answer is: 0.0178 m 3/s
Question 13
Not answered
Marked out of 1.00

question
Question text
Which of the following are the dimensions of pressure and torque respectively?
Select one:
a. mc012-1.jpgand mc012-2.jpg
b. mc012-3.jpgand mc012-4.jpg
c. mc012-5.jpgand mc012-6.jpg
d. mc012-7.jpgand mc012-8.jpg
Feedback
The correct answer is: mc012-7.jpgand mc012-8.jpg
Question 14
Incorrect
question
Question text
A cake of soap placed in a bathtub of water floats. The buoyant force on the soap is
Select one:
a. zero.
b. less than its weight.
c. equal to its weight.
d. more than its weight. Incorrect
Feedback
The correct answer is: equal to its weight.
Question 15
Not answered
Marked out of 1.00
question
Question text
Find the time of flight of a tennis ball that was accelerated at an angle of 40° with velocity of 40m/s.
Take g = 10m/s 2.
Select one:
a. 6.43 s
b. 5.14 s
c. 2.57 s
d. 3.86 s
Feedback
The correct answer is: 5.14 s
Question 16
Not answered
Marked out of 1.00
question
Question text
An object of mass 5.4kg is falling from the top of a building. If the velocity of the object at height 20.0m
above the sea level is 10.0m/s, how far is the top of the building from the sea level?
Select one:
a. 30.0m
b. 23.4m
c. 25.1m
d. 30.2m
Feedback
The correct answer is: 25.1m
Question 17
Not answered
Marked out of 1.00
question
Question text
An ideal gas system expands from 4.0 m 3 to 5.0 m 3 at S.T.P. If the system absorbs 5.0 x 10 4 J of heat in
the process, what is the change in the internal energy of the system? (Standard pressure = 1.013 x 10 5
Pa).
Select one:
a. 3.55 x 10 5 J
b. 5.13 x 10 4 J
c. 4.57 x 10 5 J
d. 2.54 x 10 5 J
Feedback
The correct answer is: 5.13 x 10 4 J
Question 18
Not answered
Marked out of 1.00
question
Question text
A 10kg mass is to be raised from the bottom to the top of an incline 5m long and 3m off the ground at
the top. How much work must be done by a force parallel to the incline pushing the mass up at a
constant speed?
Select one:
a. 294J
b. 194J
c. 260J
d. 59J
Feedback
Question 19
Not answered
Marked out of 1.00
question
Question text
The rubber cord of a catapult has a cross-sectional area 1.0mm 2 and total unstretched length 10cm. It is
stretched to 12cm and then released to project a missile of mass 5.0g. Calculate the velocity of
projection taking Young’s modulus for the rubber as 5.0 x 10 8 N/m 2.
Select one:
a. 10m/s
b. 5m/s
c. 20m/s
d. 40m/s
Feedback
Question 20
Not answered
Marked out of 1.00
question
Question text
Find the angle between the two vectors mc062-1.jpgand mc062-2.jpg
Select one:
a. 100.1°
b. 90.1°
c. 78.5°
d. 65.2°
Feedback
Question 21
Correct
question
Question text
The acceleration with which a particle move is given as mc077-1.jpg Find its velocity at time t = 3s, given
that the velocity at t = 0 is zero.
Select one:
a. 15m/s
b. -3m/s
c. 9m/s Correct
d. 5m/s
Feedback
Question 22
Incorrect
question
Question text
The velocity v of the wave set-up by plucking a stretched string is found to depend on the tension T in
the string, its length l and its mass m, and is given by mc004-1.jpg where x, y, z are unknown numbers
and k is a constant. Find the values of x, y, and z.
Select one:
a. ½, -½, ½
b. -½, ½, ½ Incorrect
c. -½, ½, -½
d. ½, ½, -½
Feedback
The correct answer is: ½, ½, -½
Question 23
Incorrect
question
Question text
In projectile motion, the

Select one:
a. Acceleration is parallel to the velocity. Incorrect
b. Acceleration is perpendicular to the velocity.
c. Acceleration is vertical while the velocity can be in any direction.
d. Acceleration reaches its minimum value at the top of the trajectory.
Feedback
The correct answer is: Acceleration is vertical while the velocity can be in any direction.
Question 24
Incorrect
question
Question text
Two vectors mc043-1.jpg and mc043-2.jpg are inclined at an angle è to each other. Evaluate the value of
è.
Select one:
a. 28.8°
b. 36.4° Incorrect
c. 18.4°
d. 32.5°
Feedback
Question 25
Incorrect
question
Question text
A 0.02kg ice cube was melted at 0°C by an application of heat which further increased the temperature
of the resulted water to 40°C. Calculate the total heat supplied to the system within this temperature
range (hint: the specific latent heat of fusion of water is 3.34 x 10 5 Jkg -1, the specific heat capacity of
water is 4200Jkg -1K -1).
Select one:
a. 20080J
b. 19880J
c. 10040J
d. 3320J Incorrect
Feedback
Question 26
Not answered
Marked out of 1.00
question
Question text
A mass M is attached to the end of a rope of length 50cm. If the tension in the rope is 4000N when the
mass is moving at 360rev/min, calculate the value of M.
Select one:
a. 3.1kg
b. 3.5kg
c. 5.6kg
d. 4.7kg
Feedback
Question 27
Not answered
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question
Question text
An 8kg block is pushed a distance 5m along a level floor at a constant speed by a 20N along a horizontal
path. The coefficient of friction between the block and the floor is 0.25. How much work is done?
Select one:
a. 392J
b. 0J
c. 584.4J
d. 58J
Feedback
Question 28
Incorrect
question
Question text
A body at rest is acted on by a constant net force of 80N and moves 72m in 6 s. What is the mass of the
body?
Select one:
a. 12kg
b. 10kg Incorrect
c. 20kg
d. 36kg
Feedback
The correct answer is: 20kg
Question 29
Correct
question
Question text
Determine the Poisson’s ratio of a solid material of Young’s modulus 5.5 × 10 10 Nm -2 and shear
modulus 2.5 × 10 10 Nm -2.
Select one:
a. 0.10 Correct
b. 0.20
c. 0.15
d. 0.12
Feedback
Question 30
Correct
question
Question text
A spring is stretched by a force F through 10.000cm. What is the work done if the stiffness of the spring
is 0.08N/m?
Select one:
a. 8.0 x 10 -4 J
b. 4.0 x 10 -4 J Correct
c. 8.0 x 10 -3 J
d. 4.0 x 10 -3 J
Feedback
The correct answer is: 4.0 x 10 -4 J
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Dashboard / ►My courses / ►UNDERGRADUATE PHYSICS 1 / ►General / ►CLICK HERE TO START THE
QUIZ ON UNDERGRADUATE PHYSICS 1
Started on Sunday, 28 March 2021, 8:36 PM
State Finished
Completed on Sunday, 28 March 2021, 8:37 PM
Time taken 44 secs
Grade 0.00 out of 30.00 (0%)
Question 1
Not answered
Marked out of 1.00
question
Question text
In the operation of a hydraulic press, it is impossible for the output piston to exceed the input prison’s
Select one:
a. displacement
b. speed
c. force
d. work
Feedback
The correct answer is: work
Question 2
Not answered
Marked out of 1.00
question
Question text
The rubber cord of a catapult is pulled back until its original length has doubled. If the cross-section is
2mm square and that Young’s modulus for rubber is 10 7 N/m 2, calculate the tension in the cord.
Select one:
a. 20N
b. 40N
c. 80N
d. 10N
Feedback
Question 3
Not answered
Marked out of 1.00
question
Question text
A constant force acts on a 2.0kg object and reduces its velocity from 7.0m/s to 3.0m/s in a time of 3.0s.
What is the magnitude of the force?
Select one:
a. 2.7N
b. 3.2N
c. 3.5N
d. 1.2N
Feedback
The correct answer is: 2.7N
Question 4
Not answered
Marked out of 1.00
question
Question text
A 15kg block is pushed up a 35° incline. A friction force of 110N exists between the block and the incline.
What minimum force F, would be necessary to move the block up the incline at a constant speed? Take
g = 9.8m/s 2.
mc232-1.jpg
Select one:
a. 26N
b. 84N
c. 150N
d. 190N
Feedback
Question 5
Not answered
Marked out of 1.00
question
Question text
A projectile is launched with an initial velocity of 35 m/s at an angle of 40° to the horizontal, find the
range. (Take g = 9.8 m/s 2).
Select one:
a. 25.8m
b. 4.59m
c. 123.1m
d. 34.8m
Feedback
Question 6
Not answered
Marked out of 1.00
question
Question text
Find the angle between two forces mc047-1.jpgN and mc047-2.jpgN.
Select one:
a. 145°
b. 135°
c. 142°
d. 139°
Feedback
The correct answer is: 139°
Question 7
Not answered
Marked out of 1.00
question
Question text
A car of mass 1200kg accelerates from rest to a speed of 25m/s in a time of 8.0 s. What is the average
power produced?
Select one:
a. 7.1kW
b. 4.43kW
c. 47kW
d. 7.67kW
Feedback
The correct answer is: 47kW
Question 8
Not answered
Marked out of 1.00
question
Question text
A 0.04kg ball is thrown from the top of a 30m tall building (point A) at an unknown angle above the
horizontal. As shown below, the ball attains a maximum height of 10m above the top of the building
before striking the ground at point B. If air resistance is negligible, calculate the vertical component of
the velocity at A and the velocity at point B.
mc119-1.jpg
Select one:
a. 20m/s
b. 10m/s
c. mc119-2.jpg
d. mc119-3.jpg
Feedback
The correct answer is: mc119-3.jpg
Question 9
Not answered
Marked out of 1.00
question
Question text
A frictionless pulley is set up with two hanging masses, as shown in the figure below. Calculate the
tension in the rope. Take g = 9.8m/s 2.
mc231-1.jpg
Select one:
a. 8.5N
b. 24N
c. 26N
d. 32N
Feedback
Question 10
Not answered
Marked out of 1.00
question
Question text
The mass of the moon is about 1/81 that of the Earth, and the distance from the centre of the Earth to
that of the moon is about 4.0 x 10 5km. At what point between the moon and the Earth will the
resultant gravitational force on a spacecraft become zero?
Select one:
a. 3.6 x 10 5km from the centre of the Earth
b. 3.6 x 10 5km from the centre of the moon
c. 4.0 x 10 5km from the centre of the Earth
d. 4.0 x 10 5km from the centre of the moon
Feedback
The correct answer is: 3.6 x 10 5km from the centre of the Earth
Question 11
Not answered
Marked out of 1.00
question
Question text
A body under hydraulic stress changes in
Select one:
a. shape
b. pressure
c. volume
d. length
Feedback
The correct answer is: volume
Question 12
Not answered
Marked out of 1.00
question
Question text
A block is pushed 2m along a fixed horizontal surface by a horizontal force of 2N. The opposing force of
friction is 0.4N. How much work is done by the frictional force?
Select one:
a. 0.2J
b. 0.4J
c. 0.8J
d. 10.0J
Feedback
The correct answer is: 0.8J
Question 13
Not answered
Marked out of 1.00
question
Question text
A projectile is launched with an initial velocity of 60m/s at an angle 60° to the vertical. What is the
magnitude of its displacement after 5s?
Select one:
a. 261m
b. 35m
c. 25m
d. 105m
Feedback
Question 14
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Marked out of 1.00
question
Question text
Which of the following statement is correct about hydrometer?

Select one:
a. The graduated scale reads upward
b. The lead shots enable it to float upright
c. Buoyancy is provided by the small bulb
d. None of the above
Feedback
The correct answer is: The lead shots enable it to float upright
Question 15
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question
Question text
The position of a particle moving along the y-axis is given by mc082-1.jpg, where y is in meters and t is in
seconds. What are the object’s displacement and average velocity for the time interval from t = 3s to t
= 5s?
Select one:
a. 46.0m, 5.75m/s
b. 46.0m, 23.0m/s
c. 2.0m, 1.0m/s
d. 2.0m, 0.25m/s
Feedback
The correct answer is: 46.0m, 23.0m/s
Question 16
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question
Question text
A satellite of mass m circles the Earth a distance R from the centre of the Earth. If the radius of the Earth
is 6.4 × 10 6m, calculate the height above the Earth’s surface of the parking orbit and the velocity of the
satellite in orbit. Take g = 9.8m/s 2.
Select one:
a. 19600km, 2.4km/s
b. 6400km, 14.12km/s
c. 36000km, 3.1km/s
d. 956.78km, 14.12km/s
Feedback
The correct answer is: 36000km, 3.1km/s
Question 17
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question
Question text
A wheel of radius 40 cm has a moment of inertia of 5 kg.m 2. A constant force of 60 N is applied at a

tangent to the rim. Assuming it starts from rest, how much work is done in 4 s?
Select one:
a. 921.6 J
b. 230.4 J
c. 518.4 J
d. 1440.0 J
Feedback
Question 18
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question
Question text
The position of a particle moving along the x-axis is given by mc083-1.jpg, where x is in meters and t is in
seconds. Find the acceleration of the particle at t = 2.0s. Is the velocity constant or changing with time?
Select one:
a. 24.0m/s 2, changing
b. 6.0m/s 2, changing
c. 24.0m/s 2, constant
d. 6.0m/s 2, constant
Feedback
The correct answer is: 24.0m/s 2, changing
Question 19
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question
Question text
The experiment shows that the frictional drag force F of a car moving in air depends on the velocity v of
its motion, density ñ of the air through which it travels, and the cross-sectional area of the car. If the
force mc002-1.jpg where x, y, and z are integers and k is a dimensionless constant, find the values of x,
y, and z.
Select one:
a. 1, 1, 1
b. ½, ½, ½
c. 1, -1, 1
d. 1, 0, 1
Feedback
The correct answer is: 1, 1, 1
Question 20
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question
Question text
A car is accelerating uniformly as it passes two points A and B, which are 30m apart. The time taken
between the two points is 4.0s, and the car’s speed at point A is 5.0m/s. Find the car’s speed at point B.
Select one:
a. 10m/s
b. 20m/s
c. 15m/s
d. 25m/s
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Question 21
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Question text
The result of an experiment shows that the resistance R è of a platinum wire at temperature è°C,
measured on the scale, is given by R è = R o(1 + aè + bè 2), where a = 3.800 x 10 -3 and b = -5.6 x 10 -7.
What temperature will the platinum thermometer indicate when the temperature on the gas scale is
300°C?
Select one:
a. 291°C
b. 391°C
c. 491°C
d. 591°C
Feedback
The correct answer is: 291°C
Question 22
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Question text
Which of the following relates the period of vibration ( T) with the following: radius a, density r and
surface tension ã.
Select one:
a. mc007-1.jpg
b. mc007-2.jpg
c. mc007-3.jpg
d. mc007-4.jpg
e. mc007-5.jpg
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Question 23
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Question text
A body moves a distance of mc050-1.jpg (in metres) under the action of a force mc050-2.jpg (in
newtons). Find the work done by the force.
Select one:
a. 8J
b. 11J
c. 16J
d. 18J
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Question 24
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question
Question text
Which of the following units is equivalent to kgm/s?
Select one:
a. J/s
b. N/s
c. Ns
d. Nm
Feedback
The correct answer is: Ns
Question 25
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question
Question text
Which of the following is/are true of friction?
(i) Limiting friction is proportional to normal reaction
(ii) Dynamic friction is greater that static friction
(iii) Friction and the horizontally applied force are not equal when acceleration mc225-1.jpg
(iv) Friction opposes motion
Select one:
a. (i), (ii) and (iv)
b. (i), (iii) and (iv)
c. (i), (ii) and (iv)
d. (i), (ii), (iii) and (iv)
Feedback
The correct answer is: (i), (iii) and (iv)
Question 26
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Question text
A capillary tube of 0.4mm diameter is placed vertically inside a liquid of density 800kgm -3 surface
tension 5 x 10 -2 Nm -1 and angle of contact 30°. Calculate the height to which the liquid rises in the
capillary tube.
Select one:
a. 4.45cm
b. 5.45mm
c. 5.55cm
d. 4.45mm
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Question 27
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Question text
In the diagram below, what is the acceleration at 1.0 s?
mc025-1.jpg
Select one:
a. 0
b. 2.0 m/s 2
c. -2.5 m/s 2
d. 10 m/s 2
Feedback
The correct answer is: 10 m/s 2
Question 28
Not answered
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question
Question text
A body is released from rest and allowed to fall freely from a given height under gravity. The kinetic
energy at its halfway point is:
Select one:
a. a little above half of its initial energy
b. a little below half of its initial energy
c. a half of its initial energy
d. a little above its initial energy
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The correct answer is: a half of its initial energy
Question 29
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question
Question text
Given that the period of oscillation of a pendulum is given by mc006-1.jpg where k is a constant. Which
of the following is correct?
Select one:
a. mc006-2.jpg
b. mc006-3.jpg
c. mc006-4.jpg
d. mc006-5.jpg
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Question 30
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question
Question text
A 15 kg cart is attached to a hanging 25 kg mass. Friction is negligible. What is the acceleration of the
15kg cart?
mc236-1.jpg
Select one:
a. 2.5m/s 2
b. 6.1m/s 2
c. 6.5m/s 2
d. 16m/s 2
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Question 1
Not answered
Marked out of 1.00
question
Question text
In the operation of a hydraulic press, it is impossible for the output piston to exceed the input prison’s
Select one:
a. displacement
b. speed
c. force
d. work
Feedback
The correct answer is: work

Question 2
Not answered
Marked out of 1.00
question
Question text
The rubber cord of a catapult is pulled back until its original length has doubled. If the cross-section is
2mm square and that Young’s modulus for rubber is 10 7 N/m 2, calculate the tension in the cord.
Select one:
a. 20N
b. 40N
c. 80N
d. 10N
Feedback
Question 3
Not answered
Marked out of 1.00
question
Question text
A constant force acts on a 2.0kg object and reduces its velocity from 7.0m/s to 3.0m/s in a time of 3.0s.
What is the magnitude of the force?
Select one:
a. 2.7N
b. 3.2N
c. 3.5N
d. 1.2N
Feedback
Question 4
Not answered
Marked out of 1.00
question
Question text
A 15kg block is pushed up a 35° incline. A friction force of 110N exists between the block and the incline.
What minimum force F, would be necessary to move the block up the incline at a constant speed? Take
g = 9.8m/s 2.
mc232-1.jpg
Select one:
a. 26N
b. 84N
c. 150N
d. 190N
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Question 5
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range. (Take g = 9.8 m/s 2).
Select one:
a. 25.8m
b. 4.59m
c. 123.1m
d. 34.8m
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Find the angle between two forces mc047-1.jpgN and mc047-2.jpgN.
Select one:
a. 145°
b. 135°
c. 142°
d. 139°
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The correct answer is: 139°
Question 7
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A car of mass 1200kg accelerates from rest to a speed of 25m/s in a time of 8.0 s. What is the average
power produced?
Select one:
a. 7.1kW
b. 4.43kW
c. 47kW
d. 7.67kW
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The correct answer is: 47kW
Question 8
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A 0.04kg ball is thrown from the top of a 30m tall building (point A) at an unknown angle above the
horizontal. As shown below, the ball attains a maximum height of 10m above the top of the building
before striking the ground at point B. If air resistance is negligible, calculate the vertical component of
the velocity at A and the velocity at point B.
mc119-1.jpg
Select one:
a. 20m/s
b. 10m/s
c. mc119-2.jpg
d. mc119-3.jpg
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Question 9
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A frictionless pulley is set up with two hanging masses, as shown in the figure below. Calculate the
tension in the rope. Take g = 9.8m/s 2.
mc231-1.jpg
Select one:
a. 8.5N
b. 24N
c. 26N
d. 32N
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The mass of the moon is about 1/81 that of the Earth, and the distance from the centre of the Earth to
that of the moon is about 4.0 x 10 5km. At what point between the moon and the Earth will the
resultant gravitational force on a spacecraft become zero?
Select one:
a. 3.6 x 10 5km from the centre of the Earth
b. 3.6 x 10 5km from the centre of the moon
c. 4.0 x 10 5km from the centre of the Earth
d. 4.0 x 10 5km from the centre of the moon
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The correct answer is: 3.6 x 10 5km from the centre of the Earth
Question 11
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A body under hydraulic stress changes in
Select one:
a. shape
b. pressure
c. volume
d. length
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The correct answer is: volume
Question 12
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friction is 0.4N. How much work is done by the frictional force?
Select one:
a. 0.2J
b. 0.4J
c. 0.8J
d. 10.0J
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Question 13
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A projectile is launched with an initial velocity of 60m/s at an angle 60° to the vertical. What is the
magnitude of its displacement after 5s?
Select one:
a. 261m
b. 35m
c. 25m
d. 105m
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Question 14
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Which of the following statement is correct about hydrometer?
Select one:
a. The graduated scale reads upward
b. The lead shots enable it to float upright
c. Buoyancy is provided by the small bulb
d. None of the above
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The correct answer is: The lead shots enable it to float upright
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The position of a particle moving along the y-axis is given by mc082-1.jpg, where y is in meters and t is in
seconds. What are the object’s displacement and average velocity for the time interval from t = 3s to t
= 5s?
Select one:
a. 46.0m, 5.75m/s
b. 46.0m, 23.0m/s
c. 2.0m, 1.0m/s
d. 2.0m, 0.25m/s
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The correct answer is: 46.0m, 23.0m/s
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A satellite of mass m circles the Earth a distance R from the centre of the Earth. If the radius of the Earth
is 6.4 × 10 6m, calculate the height above the Earth’s surface of the parking orbit and the velocity of the
satellite in orbit. Take g = 9.8m/s 2.
Select one:
a. 19600km, 2.4km/s
b. 6400km, 14.12km/s
c. 36000km, 3.1km/s
d. 956.78km, 14.12km/s
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The correct answer is: 36000km, 3.1km/s
Question 17
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A wheel of radius 40 cm has a moment of inertia of 5 kg.m 2. A constant force of 60 N is applied at a

tangent to the rim. Assuming it starts from rest, how much work is done in 4 s?
Select one:
a. 921.6 J
b. 230.4 J
c. 518.4 J
d. 1440.0 J
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The position of a particle moving along the x-axis is given by mc083-1.jpg, where x is in meters and t is in
seconds. Find the acceleration of the particle at t = 2.0s. Is the velocity constant or changing with time?
Select one:
a. 24.0m/s 2, changing
b. 6.0m/s 2, changing
c. 24.0m/s 2, constant
d. 6.0m/s 2, constant
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The correct answer is: 24.0m/s 2, changing
Question 19
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The experiment shows that the frictional drag force F of a car moving in air depends on the velocity v of
its motion, density ñ of the air through which it travels, and the cross-sectional area of the car. If the
force mc002-1.jpg where x, y, and z are integers and k is a dimensionless constant, find the values of x,
y, and z.
Select one:
a. 1, 1, 1
b. ½, ½, ½
c. 1, -1, 1
d. 1, 0, 1
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The correct answer is: 1, 1, 1
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A car is accelerating uniformly as it passes two points A and B, which are 30m apart. The time taken
between the two points is 4.0s, and the car’s speed at point A is 5.0m/s. Find the car’s speed at point B.
Select one:
a. 10m/s
b. 20m/s
c. 15m/s
d. 25m/s
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The result of an experiment shows that the resistance R è of a platinum wire at temperature è°C,
measured on the scale, is given by R è = R o(1 + aè + bè 2), where a = 3.800 x 10 -3 and b = -5.6 x 10 -7.
What temperature will the platinum thermometer indicate when the temperature on the gas scale is
300°C?
Select one:
a. 291°C
b. 391°C
c. 491°C
d. 591°C
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Which of the following relates the period of vibration ( T) with the following: radius a, density r and
surface tension ã.
Select one:
a. mc007-1.jpg
b. mc007-2.jpg
c. mc007-3.jpg
d. mc007-4.jpg
e. mc007-5.jpg
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A body moves a distance of mc050-1.jpg (in metres) under the action of a force mc050-2.jpg (in
newtons). Find the work done by the force.
Select one:
a. 8J
b. 11J
c. 16J
d. 18J
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Select one:
a. J/s
b. N/s
c. Ns
d. Nm
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Question 25
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Which of the following is/are true of friction?
(i) Limiting friction is proportional to normal reaction
(ii) Dynamic friction is greater that static friction
(iii) Friction and the horizontally applied force are not equal when acceleration mc225-1.jpg
(iv) Friction opposes motion
Select one:
a. (i), (ii) and (iv)
b. (i), (iii) and (iv)
c. (i), (ii) and (iv)
d. (i), (ii), (iii) and (iv)
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The correct answer is: (i), (iii) and (iv)
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A capillary tube of 0.4mm diameter is placed vertically inside a liquid of density 800kgm -3 surface
tension 5 x 10 -2 Nm -1 and angle of contact 30°. Calculate the height to which the liquid rises in the
capillary tube.
Select one:
a. 4.45cm
b. 5.45mm
c. 5.55cm
d. 4.45mm
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Question 27
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In the diagram below, what is the acceleration at 1.0 s?
mc025-1.jpg
Select one:
a. 0
b. 2.0 m/s 2
c. -2.5 m/s 2
d. 10 m/s 2
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The correct answer is: 10 m/s 2
Question 28
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A body is released from rest and allowed to fall freely from a given height under gravity. The kinetic
energy at its halfway point is:
Select one:
a. a little above half of its initial energy
b. a little below half of its initial energy
c. a half of its initial energy
d. a little above its initial energy
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The correct answer is: a half of its initial energy
Question 29
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Given that the period of oscillation of a pendulum is given by mc006-1.jpg where k is a constant. Which
of the following is correct?
Select one:
a. mc006-2.jpg
b. mc006-3.jpg
c. mc006-4.jpg
d. mc006-5.jpg
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A 15 kg cart is attached to a hanging 25 kg mass. Friction is negligible. What is the acceleration of the
15kg cart?
mc236-1.jpg
Select one:
a. 2.5m/s 2
b. 6.1m/s 2
c. 6.5m/s 2
d. 16m/s 2
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Question 1
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An ideal gas system expands from 1m 3 to 3.0m 3 at S.T.P. If the system absorbs 5.0 x 10 4J of heat in
the process, what is the change in the internal energy of the system?
Select one:
a. 1.526 x 10 5J
b. 2.500 x 10 5J
c. 6.000 x 10 4J
d. 7.505 x 10 5J
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The correct answer is: 1.526 x 10 5J
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The mass of the moon is about 1/81 that of the Earth, and its radius is one-fourth that of the Earth.
What is the acceleration due to gravity on the surface of the moon?
Select one:
a. mc004-1.jpg
b. mc004-2.jpg
c. mc004-3.jpg
d. mc004-4.jpg
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A car moving at a speed of 30m/s decelerates at a constant rate of 2.0m/s 2. How far does it go before
stopping?
Select one:
a. 225 m
b. 60 m
c. 30 m
d. 40 m
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The correct answer is: 225 m
Question 4
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A pilot wishes to fly his plane north-west, but a southerly wind of speed 60km/h is blowing. If the plane
is capable of 400km/h in still air, on what bearing does the plane fly, and what will its actual speed be?
Select one:
a. 444.46km/h
b. 460.0km/h
c. 340.0km/h
d. 400.0km/h
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The correct answer is: 444.46km/h
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A catapult is made of two identical strips of rubber, each of unstretched length of 0.3m and area of
cross-section 1.7 x 10 -4m 2. Young’s modulus for the rubber is 5 x 10 6Nm -2. If each of the catapult
rubber is stretched by 0.2m to fire a stone of mass 250g vertically upward and all the elastic energy
stored in the rubber is converted to kinetic energy of the motion of the stone, calculate the maximum
height to which the stone rises.
Select one:
a. 46.26m
b. 5.628m
c. 23.14m
d. 2.314m
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The three containers in Figure 9.14 are filled with water to the same height. The one with the greatest
pressure at the bottom is
mc139-1.jpg
Select one:
a. container A.
b. container B.
c. container C.
d. all have the same pressure at the bottom.
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The correct answer is: all have the same pressure at the bottom.
Question 7
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If vectors mc044-1.jpg and mc044-2.jpg , find their dot product.
Select one:
a. 14
b. 16
c. 13
d. 17
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The correct answer is: 13
Question 8
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Two birds are flying directly towards each other at the same speed, if the first bird is flying at a velocity
v, what is the velocity of the second bird?
Select one:
a. v
b. - v
c. 2 v
d. Impossible to determine
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The correct answer is: - v
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The shear and Young modulus of anisotropic material are 0.2 x 10 11Nm -2 and 0.5 x 10 11Nm -2
respectively. Calculate the bulk modulus of the material.
Select one:
a. 0.42 x10 11 Nm -2
b. 0.33 x10 11 Nm -2
c. 0.25 x10 11 Nm -2
d. 0.12x10 11 Nm -2
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The correct answer is: 0.33 x10 11 Nm -2

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A road of radius 20m is to be banked so that a car may make a turn at a maximum speed of 15m/s. What
must be the banking angle?
Select one:
a. 48.9°
b. 46.2°
c. 90.0°
d. 8.9°
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A body at rest tends to remain at rest and a body in motion tends to remain in motion unless acted upon
by an unbalanced force, is stated in the law of
Select one:
a. motion
b. inertia
c. momentum
d. action and reaction
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The correct answer is: inertia
Question 12
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How much work is done when a bucket of mass 2kg with 20kg of water in it is pulled up from the bottom
of a well 10m deep?
Select one:
a. 901.6J
b. 1121J
c. 2200J
d. 2156J
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A ball of mass 0.1kg is thrown vertically upwards with an initial speed of 20m/s. Calculate the time taken
to return to the thrower
Select one:
a. 4 s
b. 2 s
c. 8 s
d. 10 s
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The correct answer is: 4 s
Question 14
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Two objects of masses m 1 and m 2 are placed side by side at distance r apart. What is the magnitude of
the force of attraction on each other?
Select one:
a. F = ma
b. m 1 = km 2 a
c. mc005-1.jpg
d. mc005-2.jpg
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Question 15
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A wire is subjected to a tensile stress of 5 × 10 8Nm -2, causing a strain of 0.5 on the wire. Calculate
Young’s modulus of the wire.
Select one:
a. 1.2 × 10 9 Nm -2
b. 5.0 × 10 9 Nm -2
c. 2.0 × 10 9 Nm -2
d. 1.0 × 10 9 Nm -2
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The correct answer is: 1.0 × 10 9 Nm -2
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Which of the following is/are supplementary unit(s)? (I) Kelvin (II) Newton (III) Second (IV) Radian
Select one:
a. I and III only
b. IV only
c. I and II only
d. I, II and IV only
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The correct answer is: IV only
Question 17
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A particle moving along the x axis is located at x i = 2 m at t i = 1s and at x f = 9 m at t f = 3 s. Find the

displacement and average velocity during this time interval.
Select one:
a. 9.0 m, 4.5 m/s
b. 7.0 m, 3.5 m/s
c. 8.0 m, 4.0 m/s
d. 6 m, 3 m/s
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The correct answer is: 7.0 m, 3.5 m/s
Question 18
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Fluid at rest at the bottom of a container is
Select one:
a. under less pressure than the fluid at the top.
b. under the same pressure as the fluid at the top.
c. under more pressure than the fluid at the top.
d. any of the above depending on circumstances
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The correct answer is: under more pressure than the fluid at the top.
Question 19
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A grindstone has a moment of inertia of 1.6 x 10 -3 kg.m 2. When a constant torque is applied, it reaches
a velocity of 1200 revs/min in 10s. Assuming that it started from rest, find the angular acceleration
Select one:
a. 5.02 rad/s 2
b. 6.28 rad/s 2
c. 8.38 rad/s 2
d. 12.57 rad/s 2
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The correct answer is: 12.57 rad/s 2
Question 20
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If systems A and B are each in thermal equilibrium with a third body C, then A and B are also in thermal
equilibrium with each other. This statement is known as
Select one:
a. First law of thermodynamics
b. The second law of thermodynamics
c. Third law of thermodynamics
d. Zeroth law of thermodynamics
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The correct answer is: Zeroth law of thermodynamics
Question 21
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A jet plane travelling horizontally at 1200 km/h relative to the ground fires a rocket forwards at 1100
km/h relative to itself. What is the velocity of the rocket relative to the ground?
Select one:
a. 2.3 x 10 3km/h
b. 5.5 x 10 3km/h
c. 6.2 x 10 3km/h
d. 2.3 x 10 4km/h
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The correct answer is: 2.3 x 10 3km/h
Question 22
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A car decelerates with 10m/s 2 from 50m/s to 20m/s. Calculate the distance travelled by the car.
Select one:
a. 150 m
b. 105 m
c. 10 m
d. 75 m
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When a body moves in the x-y plane, its velocity may be expressed in terms of the components v x and v
y. What is the angle between them? If v x is 5m/s and v y is 7m/s, what is the value of the angle between
them?
Select one:
a. q = tan v y/ v x, 0.02°
b. q = cos -1 v x/ v y, 44.4°
c. q = tan -1 vx/ vy, 35.5°
d. q = sin -1 v x/ v y, 45.6°
e. q = tan -1 v y/ v x, 54.5°
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The correct answer is: q = tan -1 v y/ v x, 54.5°
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The mass of an object in air is 50g, and it appears to have a mass of 35g when immersed in water. Find
the relative density of the substance.
Select one:
a. 3.33
b. 0.33
c. 1.00
d. 1.05
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An 8000kg engine pulls a 40 000kg train along a level track and gives it an acceleration 1.20m/s 2. What
acceleration would the engine give to a 16 000kg train?
Select one:
a. 2.40m/s 2
b. 3.50m/s 2
c. 7.86m/s 2
d. 1.20m/s 2
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A copper wire LM is fused at the end M to an iron wire MN. The copper wire has length 0.9m and cross-
sectional area 0.9 x 10 -6m 2. The iron wire has length 1.4m and cross-sectional area 1.3 x 10 -6m 2.
When the compound wire is stretched, its total length increases by 0.01m. Calculate the extension of
each wire. [Young’s moduli for copper and iron are 1.3 x 10 11N/m 2 and 2.1 x 10 11N/m 2,
respectively].
Select one:
a. 6.0 mm
b. 3.0 mm
c. 1.5 mm
d. 4.5 mm
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The correct answer is: 6.0 mm
Question 27
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0.01kg of ice and 0.2kg of water at 20°C are in a container. Steam at 100°C is passed in until all the ice
melted and the final temperature of the mixture is 30°C. Calculate the mass of water that is now in the
container. (hint: the specific latent heat of vaporisation of water is 2.3 x 10 6Jkg -1, the specific latent
heat of fusion of water is 3.34 x 10 5Jkg -1, the specific heat capacity of water = 4200Jkg -1K -1).
Select one:
a. 0.215kg
b. 0.182kg
c. 0.192kg
d. 0.3kg
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Question 28
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A force of 45N is applied at an angle of 35° above the horizontal to pull a 21kg crate across a floor as
shown in the figure below. What is the normal force on the crate? Take g = 9.8m/s 2.
mc230-1.jpg
Select one:
a. 26N
b. 180N
c. 210N
d. 170N
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Question 29
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A race car moves such that its position is given as mc178-1.jpg Find the position at t = 4.00s
Select one:
a. 35m
b. 11m
c. 30m
d. 33m
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Question 30
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If petrol flows at 4m/s through a hose of 10mm diameter. What nozzle diameter will dispense it at the
rate of 16m/s
Select one:
a. 5.0mm
b. 2.5mm
c. 20.0mm
d. 40.0mm
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The correct answer is: 5.0mm
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Question 1
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What is the dimension of the coefficient of viscosity of fluid?
Select one:
a. mc058-1.jpg
b. mc058-2.jpg
c. mc058-3.jpg
d. mc058-4.jpg
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Question 2
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A car that weighs 1.3 x 10 4N was initially moving at a speed of 40km/h when the brakes were applied.
The car was brought to a stop in 15m. If the force that stops the car is constant, find the magnitude of
that force and the time required to bring the car to a stop.
Select one:
a. 5.33 x 10 3N, 1.35s
b. 5.33 x 10 3N, 2.7s
c. 5.45 x 10 3N, 1.35s
d. 5.45 x 10 3N, 2.7s
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The correct answer is: 5.33 x 10 3N, 2.7s
Question 3
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An ideal gas 27°C and a pressure of 760mm of mercury is changed isothermally until its volume is
doubled. It is then changed reversibly and adiabatically to half its original volume. If the value of g for
the gas is 1.4, calculate the final pressure and temperature of the gas.
Select one:
a. p 2 = 218mmHg, T 2 = 172 K
b. p 2 = 2646.5mmHg, T 2 = 522.3 K
c. p 2 = 380mmHg, T 2 = 325.2 K
d. p 2 = 1520mmHg, T 2 = 300 K
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The correct answer is: p 2 = 2646.5mmHg, T 2 = 522.3 K
Question 4
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The coordinate of a particle in meters is given by mc138-1.jpg where the time t is in seconds. The
particle is momentarily at rest at t
Select one:
a. 0.75 s
b. 1.3 s
c. 5.3 s
d. 7.3 s
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The correct answer is: 1.3 s
Question 5
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The angular velocity of a flywheel increases uniformly from 400 rev/min to 1000 rev/min in 5s. Find the
number of revolutions made by the wheel in the 5s interval.
Select one:
a. 120 revolutions
b. 2 revolutions
c. 58.3 revolutions
d. 3,500 revolutions
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The correct answer is: 58.3 revolutions
Question 6
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The mass of an object in air is 50g, and it appears to have a mass of 35g when immersed in water. Find
the density of the substance.
Select one:
a. 3333 kg/m 3
b. 333.3 kg/m 3
c. 1000 kg/m 3
d. 1050 kg/m 3
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The correct answer is: 3333 kg/m 3
Question 7
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Calculate the time taken and the distance covered by a train moving with a velocity of 15m/s to
accelerate uniformly at the rate of 2m/s 2 to reach a velocity of 20m/s.
Select one:
a. 2.5 s, 23.75 m
b. 17.5 s, 43.75 m
c. 13.5 s, 33.75 m
d. 2.5 s, 43.75 m
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The correct answer is: 2.5 s, 43.75 m
Question 8
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Question text
A ball is projected horizontally from the top of a vertical cliff, 40m high, with a velocity of 20m/s.
Calculate the time it takes for the ball to get to the ground. Take g = 10m/s 2.
Select one:
a. 2 mc024-1.jpg s
b. mc024-2.jpg s
c. mc024-3.jpg/2 s
d. 1/ mc024-4.jpg s
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The correct answer is: 2 mc024-1.jpg s
Question 9
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Question text
A wheel 1.0m in diameter is rotating about a fixed axis with an inertia angular velocity of 2rads -1. The
angular acceleration is 3rads -2. Compute the angular velocity after 6s.
Select one:
a. 20 rads -1
b. 18 rads -1
c. 17.5 rads -1
d. 19.5 rads -1
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The correct answer is: 20 rads -1
Question 10
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A train travels with an initial velocity of 20m/s. If it accelerates uniformly at 2m/s 2 and travels 100m,
calculate the final velocity.
Select one:
a. 18.0m/s
b. 20.8m/s
c. 28.3m/s
d. 57.6m/s
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Question 11
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Two vectors A and B are given as follows: A = 3.0 i – 4.5 j and B = -2.5 i + 5.0 j. Find the magnitude of
their vector sum and the angle it makes with the positive x-axis.
Select one:
a. 0.71N, 90.0°
b. 0.71N, 45.0°
c. 120.5N, 60.0°
d. 120.5N, 35.4°
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The correct answer is: 0.71N, 45.0°
Question 12
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A disc of mass 0.5kg and radius 10cm is rotating freely about axis O through its centre at 30 rev.min -1. If
a 50g mass is now dropped gently unto the disc at 8cm from the centre O, what is the new r.p.m of the
disc?
Select one:
a. 35 r.p.m
b. 20 r.p.m
c. 27 r.p.m
d. 10 r.p.m
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The correct answer is: 27 r.p.m
Question 13
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A spherical ball of radius 0.65cm is dropped in a fluid of density 1260kgm -3. If the viscosity of the liquid
is 1.495Nsm -2 and the terminal velocity is 2.25m/s. Calculate the upthrust on the falling ball.
Select one:
a. 14204.48N
b. 0.0150N
c. 2.185N
d. 0.0142N
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Question 14
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Which of the underlisted quantities has the dimension mc022-1.jpg
Select one:
a. moment of a force
b. work
c. acceleration
d. moment of a force and work
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The correct answer is: moment of a force and work
Question 15
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A 5kg object swings in a horizontal circle with a speed of 20m/s. What is the radius of the path if the
centripetal force is 2000N?
Select one:
a. 1.0 m
b. 2.7 m
c. 1.8 m
d. 2.4 m
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The correct answer is: 1.0 m
Question 16
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The displacement s( t) of a car as a function of time t is given as mc078-1.jpg. Find its velocity at time t =
4s. At what time will the velocity of the body become zero?
Select one:
a. 12m/s, 0
b. 22m/s, 0.333s
c. 12m/s, 0.333s
d. 10m/s, 0
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The correct answer is: 22m/s, 0.333s
Question 17
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Which of the following quantities is a vector?
Select one:
a. Electric potential
b. Electric charge
c. Electric capacitance
d. Electric field
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The correct answer is: Electric field
Question 18
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Which of the following quantities has the same unit as the kilowatt-hour?
Select one:
a. Force × time
b. Force × distance
c. Force × velocity
d. Force × acceleration
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The correct answer is: Force × distance
Question 19
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An object is thrown forward from the top of a cliff 20 m high with a horizontal velocity of 15 m/s.
Calculate the time to reach the ground.
Select one:
a. 5s
b. 4s
c. 2s
d. 3s
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Question 20
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A sudden torque of 300 Nm is applied to the edge of a disk initially at rest. If the rotational inertia of the
disk is 4 kgm 2 and the torque acts for 0.04 s, what is the final angular speed?
Select one:
a. 1.4 rad/s
b. 3.0 rad/s
c. 2.0 rad/s
d. 2.4 rad/s
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The correct answer is: 2.4 rad/s
Question 21
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Which of the following is NOT a vector quantity?
Select one:
a. Force
b. Acceleration
c. Weight
d. Distance
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The correct answer is: Distance
Question 22
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A boat is travelling upstream at 5 km/h[N] relative to the shore. If there is a current of 7 km/h[S], what is
the boat's velocity relative to the water?
Select one:
a. 12 km/h[S]
b. 2 km/h[N]
c. 12 km/h[N]
d. 2 km/h[S]
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The correct answer is: 12 km/h[N]
Question 23
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Question text
the displacement of the train between t 1 = 1.0s and t 2 = 2.0s.
Select one:
a. 15m
b. 20m
c. 10m
d. 5m
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Question 24
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What temperature, at constant pressure, will the root mean square velocity of hydrogen will be thrice
its value at STP?
Select one:
a. 1092 K
b. 2457 K
c. 819 K
d. 1258 K
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The correct answer is: 2457 K
Question 25
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A sudden torque of 300 Nm is applied to the edge of a disk initially at rest. If the rotational inertia of the
disk is 4 kgm 2 and the torque acts for 0.04s, what is the change in angular momentum?
Select one:
a. 18.0 kg m 2/s
b. 8.0 kg m 2/s
c. 4.0 kg m 2/s
d. 12.0 kg m 2/s
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The correct answer is: 12.0 kg m 2/s
Question 26
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The rise in capillary tube will be highest in which of these liquids:
Select one:
a. castor oil
b. mercury
c. kerosene
d. water
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The correct answer is: water
Question 27
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On a stress-strain curve, the point from where relationship is no longer linear is called
Select one:
a. yield strength
b. break point
c. elastic limit
d. ultimate strength
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The correct answer is: elastic limit
Question 28
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Three forces act on a particle that moves with unchanging velocity v = (3m/s) i - (4m/s) j. Two of the
forces are F1 = (2N) i + (3N) j +(-2N) k and F 2 = (-5N) i + (8N) j +(-2N) k . What is the third force?
Select one:
a. (3N) i +(-11N) j + (4N) k
b. (-11N) i + (3N) j +(4N) k
c. (4N) i + (3N) j +( -11N) k
d. (3N) i +(4N) j + (-11N) k
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The correct answer is: (3N) i +(-11N) j + (4N) k
Question 29
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Pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the
walls of the containing vessel. This is the statement of
Select one:
a. Stoke’s law
b. Bernoulli’s principle
c. Archimede’s principle
d. Pascal’s Law
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The correct answer is: Pascal’s Law
Question 30
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A bullet of mass 0.4kg is fired with a velocity of 800m/s into a soft wood of mass 2kg, lying on a smooth
surface. What is the final velocity if the collision is completely inelastic?
Select one:
a. 38.1m/s
b. 133.3m/s
c. 104.3m/s
d. 160.0m/s
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Question 1
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Compute the atmospheric pressure on a day when the height of a barometer is 76.0cm. ( ñ = 13.6 x 10 3
kgm -3)
Select one:
a. 1.013 x 10 5 Pa
b. 133.28 x 10 3 Pa
c. 1.012 x 10 2 Pa
d. 10.12 x 10 3 Pa
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The correct answer is: 1.012 x 10 2 Pa
Question 2
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A ball of mass 0.1kg is thrown vertically upwards with an initial speed of 20m/s. Calculate the kinetic and
potential energies of the ball half-way up.
Select one:
a. 5 J, 10 J
b. 5 J, 5 J
c. 10 J, 10 J
d. 2 J, 2 J
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The correct answer is: 10 J, 10 J
Question 3
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A spherical ball is moved up an inclined plane which is at angle 30°, with an initial speed 5m/s. The
coefficients of static and kinetic friction between the block and the surface are 0.44 and 0.36,
respectively. Determine the distance moved by the ball before coming to rest.
Select one:
a. 1.54m
b. 3.08m
c. 2.45m
d. 9.80m
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An athlete ( A) swims with a velocity of 4m/s perpendicularly across a gently flowing river ( R) at 3m/s.
Find the resultant velocity of the athlete relative to the river.
mc039-1.jpg
Select one:
a. 4m/s, 53° to R-direction
b. 5m/s, 53° to R-direction
c. 4m/s, 53° to A-direction
d. 5m/s, 53° to A-direction
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The correct answer is: 5m/s, 53° to R-direction
Question 5
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A water skier is pulled by a tow rope behind a boat. He skies off to the side and the rope makes an angle
of 40° with his direction of motion. What is the tension in the rope, if the work done on the skier by the
rope is mc052-1.jpg during a displacement of 500m?
Select one:
a. 69 N
b. 175 N
c. 78 N
d. 93 N
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The correct answer is: 78 N
Question 6
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The system of blocks on a frictionless surface in the figure below is accelerating at 2.0 m/s 2. What is the
tension in the cord at X?
mc234-1.jpg
Select one:
a. 2.0 N
b. 6.0 N
c. 8.0 N
d. 16 N
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The correct answer is: 8.0 N
Question 7
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Which of the following are derived quantities? (I) Force (II) Temperature (III) Area (IV) Pressure
Select one:
a. I and IV only
b. II, III and IV only
c. I and III only
d. I, III and IV only
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The correct answer is: I, III and IV only
Question 8
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How much water will flow in 60.0s through 200mm of the capillary tube of 1.50mm inner diameter if the
pressure differential across the tube is 5.00cm of mercury? The viscosity of water is 8.01 x 10 -4kg/m.s
and density for mercury is 13 600kg/m 3.
Select one:
a. 3.16 x 10 -4 m 3
b. 4.10 x 10 -4 m 3
c. 5.15 x 10 -4 m 3
d. 7.10 x 10 -4 m 3
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The correct answer is: 3.16 x 10 -4 m 3
Question 9
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A ball is thrown straight downward with non-zero initial speed from a height of 50m. Calculate the initial
speed if it takes the ball 2s to strike the ground. With what speed will it strike the ground?
Select one:
a. 10m/s, 15m/s
b. 15m/s, 25m/s
c. 15m/s, 35m/s
d. 35m/s, 45m/s
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The correct answer is: 15m/s, 35m/s
Question 10
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Calculate the angular momentum of a body of linear momentum mc048-1.jpgkgm/s relative to a
reference point mc048-2.jpgm.
Select one:
a. mc048-3.jpg
b. (2, 3, –1)
c. (2, 3, -2)
d. (2, 3, –3)
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Question 11
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A baseball is thrown vertically upward with an initial speed of 20m/s. Calculate how fast it was travelling
on its way down when caught 5.0 m above where it was thrown.
Select one:
a. 17.3m/s
b. 20.4m/s
c. 30.5m/s
d. 45.6m/s
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Question 12
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Calculate the constant force that will accelerate a body of mass mc022-1.jpg from rest to a speed of
50m/s in 25s.
Select one:
a. mc022-2.jpg
b. mc022-3.jpg
c. mc022-4.jpg
d. mc022-5.jpg
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Question 13
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A lift moves (i) up and (ii) down with an acceleration of 2m/s 2. In each case, calculate the reaction of
the floor on an object of mass 50kg place on the floor of the lift.
Select one:
a. 600N, 400N
b. 400N, 600N
c. 600N, 600N
d. 400N, 400N
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The correct answer is: 600N, 400N
Question 14
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A cliff is 20m above the ground. A boy rolls a ball off the edge with unknown initial velocity, and it strikes
the ground 3m horizontally away. Calculate its time of flight.
Select one:
a. 1s
b. 3s
c. 4s
d. 2s
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Question 15
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A block of mass 8 kg resting on a horizontal surface is connected by a horizontal cord passing over a
light, frictionless pulley to a hanging block with mass 4 kg. The coefficient of kinetic friction between the
block and the horizontal surface is 0.5. After the blocks are released, find the tension in the cord. Take g
= 10m/s 2.
Select one:
a. 33.3 N
b. 41.5 N
c. 40.0 N
d. 50.0 N
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Question 16
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A 300g mass hangs at the end of a string. A second-string hang from the bottom of that mass and
supports a 900g mass. Find the tension in each string when the masses are accelerating downward at
0.700m/s 2.
Select one:
a. 12.84N, 9.63N
b. 11.16N, 8.37N
c. 51.10N, 8.37N
d. 11.16N, 9.37N
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The correct answer is: 11.16N, 8.37N
Question 17
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What is the tension in a vertical rope pulling a block of mass 50kg with an acceleration of 1m/s 2?
Select one:
a. 5.5N
b. 55N
c. 0.5N
d. 550N
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Question 18
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A hydraulic press contains 0.20m 3 of oil. When it is subjected to a pressure increase of 1.6 x 10 7 Pa the
volume of the oil decreases by 8.0 x 10 -4m 3. Determine the compressibility of the oil.
Select one:
a. 2.00 x 10 -10Pa -1
b. 2.50 x 10 -10Pa -1
c. 1.43 x 10 -10Pa -1
d. 1.11 x 10 10Pa -1
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The correct answer is: 2.50 x 10 -10Pa -1
Question 19
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All these are true of friction except:
Select one:
a. Whenever two bodies are in contact with each other, there is always a resistance to motion
experienced by the surfaces of the two bodies.
b. Friction and the applied force are equal in magnitude when acceleration is zero.
c. The coefficient of static friction m s is less than the coefficient of kinetic friction m k.
d. Limiting friction is proportional to the normal reaction.
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The correct answer is: The coefficient of static friction m s is less than the coefficient of kinetic friction m
k.
Question 20
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A baseball pitcher is warming up as he travels to a game by plane. The plane is flying at 400 km/h[W]
relative to the ground. The pitcher throws a ball at 150 km/h relative to the aeroplane. What is the ball's
velocity relative to the ground, if the pitcher throws the ball towards the front of the plane?
Select one:
a. 550 km/h[W]
b. 50 km/h[W]
c. 550 km/h[E]
d. 400 km/h[W]
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The correct answer is: 550 km/h[W]
Question 21
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A wheel has an inertia of 17.5kgm 2 when rotating at 550rev/min. Calculate the rotational energy of the
wheel.
Select one:
a. 30709.6J
b. 27389.6J
c. 29049.6J
d. 24069.7J
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Question 22
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An aeroplane trip involves three legs, with two stopovers. The first leg is due east for 620 km; the
second leg is southeast (45°) for 440 km; and the third leg is at 53° south of west, for 550 km. What is
the plane’s total displacement?
Select one:
a. 960.5km, at an angle of 51° below the x-axis
b. 960.5km, at an angle of 51° above the x-axis

c. 750.5km, at an angle of 51° below the x-axis
d. 750.5km, at an angle of 51° above the x-axis
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The correct answer is: 960.5km, at an angle of 51° below the x-axis
Question 23
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The product PV where P is pressure and V is volume has the same unit as
Select one:
a. density
b. power
c. momentum
d. energy
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The correct answer is: energy
Question 24
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Which of the following is always a characteristic of an adiabatic process?
Select one:
a. The temperature does not change (DT = 0)
b. The pressure does not change (DP = 0)
c. The internal energy does not change (DU = 0)
d. No heat flows into or out of the system (DQ = 0)
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The correct answer is: No heat flows into or out of the system (DQ = 0)
Question 25
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Find the change in internal energy of the system when a system absorbs 300 cal at the same time 600 J
of work is done on it
Select one:
a. 836.8 J
b. 1855.2 J
c. 655.2 J
d. 2510.4 J
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Question 26
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maximum height attained. (Take g = 9.8 m/s 2).
Select one:
a. 25.8m
b. 4.59m
c. 123.1m
d. 34.8m
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Question 27
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A footballer lobs a football at an angle of 30° to the horizontal with an initial speed of 20ms -1. What are
the greatest height attained and the time of flight?
Select one:
a. 4 m, 4 s
b. 6 m, 2 s
c. 5 m, 2 s
d. 7 m, 5 s
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The correct answer is: 5 m, 2 s
Question 28
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A constant mass of gas maintained at constant pressure has a volume of 200.0cm 3 at the temperature
of melting ice, 273.2cm 3 at the temperature of water boiling under standard pressure, and 525.1cm 3
at the normal boiling point of sulphur. A platinum wire has a resistance of 2.000, 2.778 and 5.280 Ù at
the temperatures. Calculate the values of the boiling point of sulphur given the two sets of observations,
and comment on the results.
Select one:
a. 444.1°C, 214.6°C
b. 444.1°C, 421.6°C
c. 434.1 oC, 214.6°C
d. 434.1°C, 421.6°C
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The correct answer is: 444.1°C, 421.6°C
Question 29
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A flat disc rotating initially at 4 rad/s receives a constant acceleration of 2 rad/s 2 for a duration of 3 s.
Find its angular displacement.
Select one:
a. 15 rad
b. 21 rad
c. 24 rad
d. 18 rad
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The correct answer is: 21 rad
Question 30
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An aeroplane heading west at an airspeed of 100 km/h has a crosswind blowing from the south at 100
km/h. What will be the aeroplane’s speed relative to the ground?
Select one:
a. 0 km/h
b. 71 km/h
c. 100 km/h
d. 141 km/h
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The correct answer is: 141 km/h

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If the net force applied in the direction of motion to a certain object on a horizontal frictionless surface
is doubled, the acceleration of the object is
Select one:
a. halved.
b. doubled.
c. unchanged.
d. quadrupled.
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The correct answer is: doubled.
Question 2
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Two moles of an ideal gas at 500 K are compressed until the pressure triples. How much work does the
gas do?
Select one:
a. -9.1 x 10 3 J
b. -7.3 x 10 3 J
c. -1.1 x 10 4 J
d. -3.7 x 10 3 J
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The correct answer is: -9.1 x 10 3 J

Question 3
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What quantity describes how quickly you change your position?
Select one:
a. Displacement
b. Speed
c. Velocity
d. Acceleration
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The correct answer is: Speed
Question 4
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A circular plate of radius 0.5m starts from rest with constant angular acceleration. Twenty seconds later,
its angular velocity has increased to 150 rads -1. Calculate the angle through which the plate has turned.
Select one:
a. 500 rad
b. 50 rad
c. 1500 rad
d. 5 rad
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The correct answer is: 1500 rad
Question 5
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What are the correct dimensions of energy and force?
Select one:
a. mc001-1.jpg
b. mc001-2.jpg
c. mc001-3.jpg
d. mc001-4.jpg
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Question 6
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Find the velocity of an object described by the position function mc018-1.jpgat time t = - 1.
Select one:
a. -2 m/s
b. 5 m/s
c. 2 m/s
d. -5 m/s
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The correct answer is: -2 m/s
Question 7
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A body moves in an x-y plane with velocity vm/s. The components of v are v x = 5m/s and v y = 7m/s
along x and y-axes respectively. What is the magnitude and direction of the velocity?
Select one:
a. 9.6m/s, 54.5°
b. 8.4m/s, 54.5°
c. 8.6m/s, 54.5°
d. 9.6m/s, 20.0°
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The correct answer is: 8.6m/s, 54.5°
Question 8
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A lawn tennis ball of mass m and speed v strikes a wall perpendicularly and rebounds with undiminished
speed. If the time of collision is t, what is the average force exerted by the ball on the wall?
Select one:
a. mv/ t
b. mv/2 t
c. 2 mv/ t
d. 4 mv/ t
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The correct answer is: 2 mv/ t
Question 9
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A Nurse pushes a 70kg patient on a 10kg gurney, producing an acceleration of 0.50m/s 2. How much
work does the Nurse do by pushing the patient and gurney through a distance of 2.5m?
Select one:
a. 153.0 J
b. 95.0 J
c. 100.0 J
d. 130.5 J
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Question 10
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The graph of kinetic energy of a body against the square of its velocity is shown in the figure below.
What is the momentum of the body when its velocity is 5m/s?
mc030-1.jpg
Select one:
a. 16 kgm/s
b. 20 kgm/s
c. 8 kgm/s
d. 24 kgm/s
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The correct answer is: 20 kgm/s
Question 11
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Given three vectors, mc072-1.jpg mc072-2.jpg and mc072-3.jpg. Find mc072-4.jpg.

Select one:
a. -7
b. -8
c. -10
d. -14
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A soap bubble has a diameter of 4mm. Calculate the pressure inside it if the atmospheric pressure is 10
5N/m (Surface tension of soap solution = 2.8 x 10 -2N/m).
Select one:
a. 5.0026 x 10 5 N/m
b. 5.0026 x 10 2 N/m
c. 1.00056 x 10 5 N/m
d. 1.00056 x 10 2 N/m
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The correct answer is: 1.00056 x 10 5 N/m
Question 13
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Question text
An object of mass 5kg is held at the height of 1 metre above the ground for 15 seconds. The work done
within this period is:
Select one:
a. 30J
b. 20J
c. 50J
d. 0J
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Question 14
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A hose directs a horizontal jet of water, moving with a velocity of 20m/s, on to a vertical wall. The cross-
sectional area of the jet is 5 x 10 -4m 2. If the density of water is 1000kgm -3, calculate the force on a
wall assuming the water is brought to rest there.
Select one:
a. 200N
b. 100N
c. 300N
d. 400N
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Question 15
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An object of mass 100kg is released from rest and falls through 10m. Calculate the work done by gravity
and the change in P.E.
Select one:
a. –10 x 10 3 J; 2 x 10 3 J
b. 10 x 10 3 J; 10 3 J
c. 10 x 10 2 J; 10 J
d. 10 x 10 2 J; –10 x 10 -3 J
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The correct answer is: 10 x 10 2 J; –10 x 10 -3 J
Question 16
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If systems X and Y are each in thermal equilibrium with a third body Z, then X and Y are also in thermal
equilibrium with each other. This statement is known as
Select one:
a. First law of thermodynamics
b. Second law of thermodynamics
c. First law of thermal equilibrium
d. Zeroth law of thermodynamics
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The correct answer is: Zeroth law of thermodynamics
Question 17
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Question text
Suppose that two masses, m 1 = 2.5kg and m 2 = 3.5kg, respectively, are connected by light strings and
are in a uniform circular motion on a horizontal frictionless surface, where r 1 = 1.0m and r 2 = 1.3m, as
shown below. The forces acting on the masses are T 2 = 2.9N and T 1 = 4.5N. Find (a) the centripetal
accelerations and (b) the magnitudes of the tangential velocities of the masses.
mc012-1.jpg
Select one:
a. a 1 = 0.64m/s 2, a 2 = 0.83m/s 2, v 1 = 0.80m/s, v 2 = 1.0m/s
b. a 1 = 0.60m/s 2, a 2 = 0.63m/s 2, v 1 = 0.70m/s, v 2 = 1.0m/s
c. a 1 = 0.04 m/s 2, a 2 = 0.083m/s 2, v 1 = 0.080m/s, v 2 =0.10m/s
d. a 1 = 0.48 m/s 2, a 2 = 0.89 m/s 2, v 1 = 0.84m/s, v 2 = 6.0m/s
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The correct answer is: a 1 = 0.64m/s 2, a 2 = 0.83m/s 2, v 1 = 0.80m/s, v 2 = 1.0m/s
Question 18
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Which of these is the dimension of Young Modulus?
Select one:
a. mc028-1.jpg
b. mc028-2.jpg
c. mc028-3.jpg
d. mc028-4.jpg
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Question 19
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The position of a particle is given by mc079-1.jpg where x is in meters and t is in seconds. Calculate the
position of the particle at t = 4s and the average velocity for the time interval t = 1s to 6s.
Select one:
a. 4m, 8m/s
b. 5m, 10m/s
c. 8m, 44m/s
d. 21m, 22m/s
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The correct answer is: 21m, 22m/s
Question 20
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friction is 0.4N. What is the work done by the 2N force?
Select one:
a. 3.2J
b. 4J
c. 4.2J
d. 4.6J
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Question 21
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Question text
A car starts from rest and uniformly accelerates to a final speed of 20.0m/s in a time of 15.0s. How far
does the car travel during this time?
Select one:
a. 150m
b. 300m
c. 450m
d. 600m
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Question 22
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A cliff is 20m above the ground. A boy rolls a ball off the edge with unknown initial velocity, and it strikes
the ground 3m horizontally away. Calculate the ball’s initial velocity.
Select one:
a. 5m/s
b. 10m/s
c. 1.5m/s
d. 15m/s
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Question 23
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A heavy flywheel of moment of inertia 0.3kgm 2 is mounted on a horizontal axle of radius 0.01m and
negligible mass compared with the flywheel. Neglecting friction, find the angular acceleration if a force
of 40N is applied tangentially to the axle and the angular velocity of the flywheel after 10 seconds from
rest.
Select one:
a. 1.3 rad/s 2, 13 rad/s
b. 1.3 rad/s 2, 1.3 rad/s
c. 13 rad/s 2, 13 rad/s
d. 13 rad/s 2, 0.13 rad/s
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The correct answer is: 1.3 rad/s 2, 13 rad/s
Question 24
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All these are true of friction except:
Select one:
a. Coefficient of static friction ì s is less than coefficient of kinetic friction ì K
b. Limiting friction is proportional to normal reaction
c. Friction and the applied force are equal in magnitude when acceleration is zero
d. whenever two bodies are in contact with each other, there is always a resistance to motion
experienced by the surfaces of the two bodies.
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The correct answer is: Coefficient of static friction ì s is less than coefficient of kinetic friction ì K
Question 25
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A spherical object has its pressure increased by 1.205 × 10 8Nm -2, and the volume reduced to 2/3 of
the original volume. Calculate the compressibility if the original volume is 1.2 × 10 -3 m 3.
Select one:
a. -0.1670 × 10 -8pa -1
b. -0.3600 × 10 -8pa -1
c. -0.2766 x 10 -8pa -1
d. -0.1666 x 10 -8pa -1
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The correct answer is: -0.2766 x 10 -8pa -1
Question 26
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The acceleration of a moving object is equal to the:
Select one:
a. gradient of a displacement-time graph
b. gradient of a velocity-time graph
c. area below a speed-time graph
d. area below a displacement-time graph
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The correct answer is: gradient of a velocity-time graph
Question 27
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The watt is equivalent to
Select one:
a. Nm/s
b. Js
c. kgm 2s 2
d. N/s
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The correct answer is: Nm/s
Question 28
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The specific latent heat of fusion of a solid is
Select one:
a. the heat required to change unit mass of it, at its melting point, into liquid at the same temperature.
b. the heat required to change 2kg mass of it, at its melting point, into liquid at the same temperature.
c. the heat required to change unit mass of it, at its steam point, into liquid at the same temperature.
d. the heat required to change 2kg mass of it, at its steam point, into liquid at the same temperature.
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The correct answer is: the heat required to change unit mass of it, at its melting point, into liquid at the
same temperature.
Question 29
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The acceleration of a car is given as a function of time as mc085-1.jpg. If the position and velocity at time
t = 0 is x o = 0 and v o = 10ms -1 respectively, what is the velocity of the car after t = 2.0s?
Select one:
a. 1.8ms -1
b. 13.6ms -1
c. 40ms -1
d. 80ms -1
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The correct answer is: 13.6ms -1
Question 30
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Find the moment of inertia of a rod 4cm in diameter and 2m long, of mass 8kg about an axis
perpendicular to the rod and passing through one end.
Select one:
a. 5.6kgm 2
b. 10.5kgm 2
c. 10.67kgm 2
d. 11.0kgm 2
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Grade 0.00 out of 30.00 (0%)
Question 1
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A constant mass of gas maintained at constant pressure has a volume of 200.0 cm 3 at the temperature
of melting ice, 273.2 cm 3 at the temperature of water boiling under standard pressure, and 525.1cm 3
at the normal boiling-point of sulphur. A platinum wire has resistance of 2.200, 2.778 and 5.280 Ù at the
temperatures. Calculate the values of the boiling-point of sulphur given the two sets of observations,
and comment on the results.
Select one:
a. 444.1°C, 214.6°C
b. 444.1°C, 532.9°C
c. 434.1 oC, 214.6°C
d. 434.1°C, 421.6°C
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The correct answer is: 444.1°C, 532.9°C
Question 2
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Projectile ‘C’ is fired at an angle of 50° above the horizontal; projectile ‘D’ is fired with the same speed at
an angle of 40° above the horizontal. Assuming level ground and negligible air resistance, which of the
following is true?
Select one:
a. ‘C’ will reach a greater height and have a greater range than ‘D’.
b. ‘C’ will reach a greater height and have the same range as ‘D’.
c. ‘C’ will reach a greater height and have a shorter range than ‘D’.
d. ‘C’ will reach the same height and have the same range as ‘D’.
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The correct answer is: ‘C’ will reach a greater height and have the same range as ‘D’.
Question 3
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A plane has a velocity of 300 km/h relative to the air. If the pilot points the plane straight north when
there is a wind of 80 km/h blowing towards the west, what will the resultant velocity of the plane be?
Select one:
a. 380 km/h[N15°W]
b. 310.5 km/h[N15°W]
c. 220 km/h[N15°E]
d. 310.5 km/h[N15°E]
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The correct answer is: 310.5 km/h[N15°W]
Question 4
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A ketchup bottle of mass 0.75kg was shoved toward the right along a smooth, level lunch counter. The
bottle has an initial velocity of 2.8m/s. As it slides it slows down because of the constant horizontal
friction force exerted on it by the counter top. It slides 0.10m before coming to rest. What is the
magnitude and direction of the frictional force acting on it?
Select one:
a. 21.56N to the left
b. 25.48N to the left
c. 29.40N to the left

d. 33.32N to the left
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The correct answer is: 29.40N to the left
Question 5
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A fire-fighter 50.0m away from a burning building directs a stream of water from a fire hose at an angle
of 30.0° above the horizontal. If the velocity of the stream is 40.0m/s, at what height will the stream of
water strike the building? (Take g = 9.8m/s 2).
Select one:
a. 8.45m
b. 21.8m
c. 18.6m
d. 55.9m
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A blue car has twice the mass of white car, but they both have the same kinetic energy. If the speed of
the red car is v, what is the speed of the white car?
Select one:
a. 2v2
b. 4v
c. 4v 2
d. 12v 2
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The correct answer is: 2v2
Question 7
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A projectile is launched with 30.0m/s at an angle of 60.0° with the horizontal. Find the time when the
ball reaches the highest point.
Select one:
a. 2.598s
b. 4.000s
c. 3.102s
d. 4.150s
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The correct answer is: 2.598s
Question 8
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Find the moment of inertia of a solid sphere 2m in diameter and of mass 5kg about an axis passing
through the centre.
Select one:
a. 6.0kgm 2
b. 10.5kgm 2
c. 2.0kgm 2
d. 1.0kgm 2
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Question 9
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A boy attempts to swim directly across a river. If his swimming speed is 1ms -1, and the current is
flowing at 2ms -1, find his actual speed, and the angle which his path makes with the bank of the river.
Select one:
a. 3m/s, 20.6°
b. 3m/s, 26.6°
c. 2.24m/s, 20.6°
d. 2.24m/s, 26.6°
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The correct answer is: 2.24m/s, 26.6°
Question 10
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Calculate the constant force that will accelerate a body of mass 5 x 10 3 kg from rest to a speed of 50m/s
in 30s.
Select one:
a. 2.50 x 10 3 N
b. 6.50 x 10 3 N
c. 7.50 x 10 3 N
d. 8.35 x 10 3 N
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The correct answer is: 8.35 x 10 3 N

Question 11
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A block of mass 2kg is pulled along a smooth horizontal surface by a horizontal force P. What is the value
of the normal force exerted on the block by the surface and determine the force P required to give the
block horizontal velocity of 4ms -1 in 2s?
Select one:
a. 20N; 10N
b. 20N; 4N
c. 10N; 4N
d. 10N; 10N
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The correct answer is: 20N; 4N
Question 12
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Given two vectors mc061-1.jpg and mc061-2.jpg find the magnitude of the vector mc061-3.jpg
Select one:
a. 45.6
b. 58.5
c. 63.5
d. 33.4
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Question 13
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A missile is launched with a speed of 50m/s at an angle 40° above the surface of a warship. Ignoring the
effects of air resistance, determine the maximum height achieved by the missile.
Select one:
a. 51.6m
b. 250.94m
c. 0.50m
d. 50.00m
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Question 14
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A lagged bar of length 80 cm and cross-sectional area 2.0 cm 2 made of copper attains a steady state
with one end at a temperature 120°C and the other at 30°C. Find the time rate of heat transfer (thermal
conductivity for copper is 380 Wm -1K -1).
Select one:
a. 7.20 W
b. 7.60 W
c. 9.77 W
d. 8.55 W
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The correct answer is: 8.55 W
Question 15
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The ability of substances to resist free passage through it is regarded as
Select one:
a. surface tension
b. shear stress
c. viscosity
d. capillarity
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The correct answer is: viscosity
Question 16
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A flat square surface plate of sides 0.25m is placed flat on a liquid of surface tension 0.0586Nm -1.
Assuming that the angle of contact is zero, calculate the downward force on the plate due to surface
tension.
Select one:
a. 0.01465N
b. 0.02930N
c. 0.03215N
d. 0.0586N
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Question 17
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question
Question text
When the net external torque acting on a system is zero, the total angular momentum of the system is
constant. This statement is the principle conservation of:
Select one:
a. angular momentum
b. angular acceleration
c. linear momentum
d. energy
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The correct answer is: angular momentum
Question 18
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A man pulls a load of mass m with a rope along a horizontal surface at a constant velocity. If the
coefficient of kinetic friction between the load and the surface is ì k and the force F applied to the rope
by the man is along the horizontal, which of the following set of Newton’s laws apply to this load? F f is
the frictional force. (i) F net = 0 (ii) F net = ma (iii) a = 0 (iv) F = F f
Select one:
a. All options are correct
b. (i), (ii) & (iii)
c. (i), (iii) & (iv)
d. (ii), (iii) & (iv)
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The correct answer is: (i), (iii) & (iv)
Question 19
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A pulley of 5.0cm radius, on a motor, slows down with the constant angular acceleration of 10 ð rad/s 2
to 20 rev/s in 2.0s. Calculate the initial angular speed of the pulley and the number of revolutions it
makes in this time.
Select one:
a. 16.72 rad/s, 3.344 rad
b. 6.72 rad/s, 3.044 rad
c. 16.72 rad/s, 3.344 rad
d. 188.52 rad/s, 314.2 rad
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The correct answer is: 188.52 rad/s, 314.2 rad
Question 20
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Three vectors are given by mc063-1.jpgand mc063-2.jpg Find mc063-3.jpg
Select one:
a. 21
b. -21
c. 35
d. -35
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Question 21
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Select one:
a. J/s
b. N/s
c. Ns
d. Nms
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Question 22
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A train travelling along a straight line with constant acceleration takes a time 4s to cover 80m between
two points. If the speed as it passes the second point is 30m/s, what is the acceleration of the train?
Calculate the initial speed of the train.
Select one:
a. 5m/s 2, 10m/s
b. 10m/s 2, 5m/s
c. 40m/s 2, 10m/s
d. 15m/s 2, 15m/s
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The correct answer is: 5m/s 2, 10m/s
Question 23
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A solid sphere of mass 20kg rolls without slipping down a 30° slope. Calculate the acceleration and the
frictional force needed to prevent slipping.
Select one:
a. 10m/s 2, 40N
b. 70.07m/s 2, 1.40N
c. 6.87m/s 2, 17.17N
d. 3.50m/s 2, 28N
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The correct answer is: 3.50m/s 2, 28N
Question 24
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A body moving in the positive x-direction passes the origin at time t = 0. Between t = 0 and t = 1 second,
the body has a constant speed of 24 meters per second. At t = 1 second, the body is given a constant
acceleration of 6 meters per second squared in the negative x-direction. The position x of the body at t =
11 seconds is
Select one:
a. +99 m
b. +36 m
c. -36 m
d. -75 m
e. -99 m
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The correct answer is: -36 m
Question 25
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An adiabatic process is one in which
Select one:
a. no heat enters or leaves the gas
b. the temperature of the gas changes
c. the change in internal energy is equal to the mechanical work done
d. all of these
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The correct answer is: all of these
Question 26
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Speed can be defined as the
Select one:
a. rate of change of distance with time.
b. rate of change of displacement with time.
c. time rate of change of distance with time.
d. rate of change of velocity with time.
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The correct answer is: rate of change of distance with time.
Question 27
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The quantity of heat required to raise the temperature of 400g of iron by 2°C, given that the specific
heat capacity of iron is 500 J/(Kg ?), is:
Select one:
a. 0.2kJ
b. 0.3kJ
c. 0.4kJ
d. 0.6kJ
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The correct answer is: 0.4kJ
Question 28
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Which of the following is a derived unit?
Select one:
a. Kilogramme
b. Metre
c. Kelvin
d. Coulomb
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The correct answer is: Coulomb
Question 29
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Identify the correct dimensions of density and pressure from the following:
Select one:
a. mc003-1.jpg
b. mc003-2.jpg
c. mc003-3.jpg
d. mc003-4.jpg
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Question 30
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An object A of mass 15kg is moving with a velocity of 6m/s. Calculate the kinetic energy and its
momentum.
Select one:
a. 270J, 90kgm/s
b. 300J, 95kgm/s
c. 350J, 23kgm/s
d. 409J, 25kgm/s
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The correct answer is: 270J, 90kgm/s
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Question 1
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A load of 100kg is placed on an elevator of mass 700kg. Find the tension in the supporting cable when
the elevator originally moving downward at 10ms -1 is brought to rest with constant acceleration in
30m.
Select one:
a. 9360N
b. 9440N
c. 9540N
d. 6640N
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Question 2
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A certain platinum resistance thermometer has a resistance of 12.6W when immersed in a triple point
cell. When the thermometer is placed in surroundings where its resistance becomes 21.6W, what is the
temperature that will be shown on the thermometer? (Hint: triple – point of water is 273.16 K.)
Select one:
a. 159.34 K
b. 743.4 K
c. 468.27 K
d. 2458.44 K
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Question 3
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In an experiment to measure Young’s modulus, a load of 500kg hanging from a steel wire of length 3m
and cross-section 0.20cm 2 was found to stretch the wire 0.4cm above its no-load length. What is the
Young’s Modulus for the steel of which the wire is composed?
Select one:
a. 2.45 x 10 8 Pa
b. 2.54 x10 8 Pa
c. 1.84x10 11 Pa
d. 18.4 x 10 11 Pa
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The correct answer is: 1.84x10 11 Pa
Question 4
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A circular wheel moving at constant speed makes one complete rotation in 45s. Two objects are on the
wheel, one at 3.0m from the centre of the ride and the other farther out, 6.0m from the centre.
Calculate (a) the angular speed and (b) the tangential speed of each object?
Select one:
a. (a) 0.14rad/s, 0.14 rad/s (b) 0.42m/s, 0.42m/s
b. (a) 0.10rad/s, 0.14 rad/s (b) 0.32m/s, 0.42m/s
c. (a) 0.14rad/s, 0.14 rad/s (b) 0.42m/s, 0.84m/s
d. (a) 0.14rad/s, 0.14 rad/s (b) 0.32m/s, 0.32m/s
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The correct answer is: (a) 0.14rad/s, 0.14 rad/s (b) 0.42m/s, 0.84m/s
Question 5
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A copper wire LM is fused at the end M to an iron wire MN. The copper wire has length 0.9m and cross-
sectional area 0.9 x 10 -6m 2. The iron wire has length 1.4m and cross-sectional area 1.3 x 10 -6m 2.
When the compound wire is stretched, its total length increases by 0.01m. Calculate the tension applied
to the compound wire. [Young’s moduli for copper and iron are 1.3 x 10 11N/m 2 and 2.1 x 10 11N/m 2,
respectively].
Select one:
a. 780.0 N
b. 300.0 N
c. 150.0 mm
d. 450.0 mm
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Question 6
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The displacement of a car is a function of time as follows: mc010-1.jpg with x is in meters. Find the
average velocity between t 1 = 3.0s and t 2 = 5.0s.
Select one:
a. 15m/s
b. 21m/s
c. 24m/s
d. 30m/s
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Question 7
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Which of the following are the correct S.I. units of the quantities indicated? I. Ns (Impulse) II. Nm
(Torque) III. Watt/s (Power) IV. kgm/s 2 (Momentum).
Select one:
a. I and II only
b. I, II and III only
c. I, II and IV only
d. I and III only
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The correct answer is: I and II only
Question 8
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What is the total displacement of a trip in which a person travels 10 km[N] and then 24 km[E]?
Select one:
a. 26 km[N67°E]
b. 34 km[N67°E]
c. 26 km[S67°E]
d. 34 km[S67°E]
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The correct answer is: 26 km[N67°E]
Question 9
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A high diver of mass 74.0kg jumps off a board 9.00m above the water. If his downward motion is
stopped 2.50s after he enters the water, what average upward force did the water exert on him?
Select one:
a. 1.12N
b. 0.332kN
c. 0.393kN
d. 0.725kN
Feedback
The correct answer is: 0.393kN
Question 10
Not answered
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question
Question text
A force of 150N is applied to drag a box of mass 12kg along a horizontal floor through 10m. If the friction
between the box and the floor is 25N and the direction of the applied force makes angle 35° with the
horizontal, calculate the effective work done on the box.
Select one:
a. 1500J
b. 1228.73J
c. 978.73J
d. 1250J
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Question 11
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question
Question text
Calculate the gauge pressure in a large fire hose if the nozzle is to shoot water straight upward to a
height of 20.0m. (density of water = 1.0 gcm -3)
Select one:
a. 2.0 x 10 5 Pa
b. 1.0 x 10 5 Pa
c. 3.0 x 10 5 Pa
d. 4.0 x 10 5 Pa
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The correct answer is: 2.0 x 10 5 Pa
Question 12
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question
Question text
A 15 kg block on a horizontal surface has a 100 N force acting on it as shown in the figure below. What is
the normal force?
mc235-1.jpg
Select one:
a. 47N
b. 100N
c. 147N
d. 247N
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Question 13
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question
Question text
A flywheel requires 3s to rotate through 234radians. Its angular velocity at the end of this time is
108rads -1. Find the constant angular acceleration.
Select one:
a. 20 rads -2
b. 10 rads -2
c. 5 rads -2
d. 2 rads -2
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The correct answer is: 20 rads -2
Question 14
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question
Question text
A force of magnitude 5N acts on a 2kg body moving initially in the direction of the force with speed of
4m/s. Calculate the distance travelled by the body if the final speed of the body is 6m/s?
Select one:
a. 5 m
b. 10 m
c. 4 m
d. 6 m
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Question 15
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Question text
1m 3 of water is mixed with 3m 3 of a liquid to form a mixture of density 850kgm -3, find the density of
the liquid if there is no contraction of volume. (Density of water = 1000kgm -3)
Select one:
a. 800kgm -3
b. 700kgm -3
c. 600kgm -3
d. 500kgm -3
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The correct answer is: 800kgm -3
Question 16
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question
Question text
A capillary tube is immersed in water of surface tension 7 x 10 -2N/m and rises 6.2cm. By what depth
will mercury be depressed if the same capillary is immersed in it? (Surface Tension of mercury =
0.54N/m angle of contact between mercury and glass = 140°; density of mercury = 13600kgm -3).
Select one:
a. 2.7cm
b. 5.4cm
c. 6.2cm
d. 4.3cm
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Question 17
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question
Question text
A car travels 80 km/h. How long does it take for it to travel 400 km?
Select one:
a. 4.7 h
b. 4.2 h
c. 5.0 h
d. 4.4 h
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The correct answer is: 5.0 h
Question 18
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question
Question text
Which of the following derived units is NOT a unit of power?
Select one:
a. Joule/second
b. ampere volt
c. ampere/volt
d. volts 2/ohms
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The correct answer is: ampere/volt
Question 19
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question
Question text
A stone is thrown horizontally with an initial velocity of 20m/s from the top of a building 90m high. Find
the horizontal range of the stone. Calculate also the velocity with which the stone strikes the ground.
Select one:
a. 84.8 m; 46.9m/s, 64.7°
b. 45.0 m; 5.83m/s, 6.1°

c. 30.0 m; 43.67m/s, 30°
d. 23.5 m; 24.7m/s, 20°
Feedback
The correct answer is: 84.8 m; 46.9m/s, 64.7°
Question 20
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question
Question text
A force 80N acts on a body initially at rest and moves 72m in 6 s. If the force is removed after the first
6s, calculate how far the body moves in the next 6s.
Select one:
a. 144m
b. 72m
c. 56m
d. 166m
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Question 21
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question
Question text
An object of mass 3.00kg is attached to the hook of a spiral-balance, and the balance is suspended
vertically from the roof of a lift. What is the reading on the spring balance when the lift goes down with
an acceleration of 0.1m/s 2?
Select one:
a. 29.7N
b. 20.4N
c. 20N
d. 10N
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Question 22
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question
Question text
A diver initially moving horizontally with speed v dives off the edge of a vertical cliff and lands in the
water a distance d from the base of the cliff. How far from the base of the cliff would the diver have
landed if the diver initially had been moving horizontally with speed 2 v?
Select one:
a. 3d
b. d/2
c. d
d. 2d
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The correct answer is: 2d
Question 23
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question
Question text
Find the magnitude of mc059-1.jpg and the angle it makes with the positive x-axis.
Select one:
a. 20.0 units at -56.3°
b. 14.4 units at 56.3°
c. 14.4 units at -56.3°
d. 20.0 units at 56.3°

Feedback
The correct answer is: 14.4 units at -56.3°
Question 24
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question
Question text
The speed of a car travelling due west is uniformly reduced from 20.0ms -1 to 10.0ms -1 in 80.0m. What
is the magnitude of the deceleration and how much time has elapsed during this deceleration?
Select one:
a. -1.875m/s 2, 5.3 s
b. -1.005m/s 2, 6.0 s
c. -1.875m/s 2, 2.0 s
d. -2.000m/s 2, 5.3 s
Feedback
The correct answer is: -1.875m/s 2, 5.3 s
Question 25
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question
Question text
Calculate the excess pressure inside a soap bubble of diameter 5mm, if the surface tension mc131-1.jpg
= 25 x 10 -3Nm -l.
Select one:
a. 40N/m 2
b. 4N/m 2
c. 20N/m 2
d. 2N/m 2
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The correct answer is: 40N/m 2
Question 26
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question
Question text
The watt is equivalent to
Select one:
a. Nm/s
b. Js
c. kgm 2s 2
d. N/s
Feedback
The correct answer is: Nm/s
Question 27
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question
Question text
A process which involves constant volume is
Select one:
a. isothermal
b. isobaric
c. isochoric
d. adiabatic
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The correct answer is: isochoric
Question 28
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question
Question text
Find the force F at an angle 21° necessary to start moving a box of mass 32kg when pushed and the
coefficient of static friction between the box and the floor is 0.57.
Select one:
a. 2.5kN
b. 0.25kN
c. 5.2kN
d. 0.52kN
Feedback
The correct answer is: 0.25kN
Question 29
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question
Question text
A ball A of mass 0.1kg, moving with a velocity of 6m/s, collides head-on with a ball B of mass 0.2kg at
rest. Calculate their common velocity if both balls move off together. If A had rebounded with a velocity
of 2m/s in the opposite direction after the collision, what would be the new velocity of B?
Select one:
a. 2m/s, 4m/s
b. 4m/s, 2m/s
c. 2m/s, 2m/s
d. 4m/s, 4m/s
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The correct answer is: 2m/s, 4m/s
Question 30
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question
Question text
If A = 2 i +3 j, B = 3 i + 5 j and C = 4 i - 6 j, find A x B x C.
Select one:
a. -114 i - 76 j
b. 6 i - 4 j
c. 114 i + 76 j
d. 6 i + 4 j
Feedback
The correct answer is: 6 i + 4 j
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Question 1
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Question text
A spherical object has its pressure increased by 1.205 x 10 8Nm -2, and the volume reduced to 5/ 6 of
the original volume. Calculate the Bulk modulus. If the original volume is 1.2 x 10 -3 m 3, what is the
radius of the object under this pressure?
Select one:
a. 7.23 x 10 8Nm -2, 6.590cm
b. 1.44 x 10 8Nm -2, 6.204cm
c. 7.23 x 10 8Nm -2, 6.204cm
d. 1.44 x 10 8Nm -2, 6.590cm
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The correct answer is: 7.23 x 10 8Nm -2, 6.204cm
Question 2
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Question text
An 800kg dragster is being decelerated by a parachute at 2.5m/s 2, as shown in the figure below. What
is the tension in the cord at this moment?
mc233-1.jpg
Select one:
a. 0N
b. 2.0 x10 3 N
c. 5.9 x10 3 N
d. 7.9 x10 3 N
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The correct answer is: 2.0 x10 3 N
Question 3
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A ball is thrown vertically upwards. The quantity which remains the same is:
Select one:
a. displacement
b. speed
c. kinetic energy
d. acceleration
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The correct answer is: acceleration
Question 4
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The volume of a liquid relative to glass in a certain type of liquid-in-glass thermometer at a temperature
of 273 K is given by: mc165-1.jpg, where a = 2 x 10 -3 and b = 3 x 10 -6. The temperature on this
thermometer when the temperature on the gas scale is 300 K will be:
Select one:
a. 297.4 K
b. 300 K
c. 397.4 K
d. 290.4 K
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Question 5
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Question text
An object of mass 2.00kg is attached to the hook of a spiral-balance, and the balance is suspended
vertically from the roof of a lift. What is the reading on the spring balance when the lift is going up with
an acceleration of 0.5m/s 2?
Select one:
a. 19.8N
b. 20.4N
c. 21.0N
d. 10.0N
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Question 6
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When a piece of wire is stretched by a weight attached to it, the stress experience is:
Select one:
a. Tensile stress
b. Shear stress
c. Bulk stress
d. Normal stress
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The correct answer is: Tensile stress
Question 7
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Helium has a molar mass of 4 g. Find the root mean square speed of a sample of helium gas at 400 K.
Select one:
a. 1579.3 m/s
b. 1367.7 m/s
c. 1765.7 m/s
d. 1934.2 m/s
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Question 8
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When the word ‘specific’ is used in thermal physics it refers to
Select one:
a. unit temperature.
b. unit mass.
c. unit heat.
d. unit time.
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The correct answer is: unit mass.
Question 9
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A body moving in the positive x direction passes the origin at time t = 0. Between t = 0 and t = 1 second,
the body has a constant speed of 26 meters per second. At t = 1 second, the body is given a constant
acceleration of 6 meters per second squared in the negative x direction. The position x of the body at t =
11 seconds is
Select one:
a. -3 m
b. -14 m
c. -47 m
d. -58 m
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The correct answer is: -14 m
Question 10
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A boy throws a stone of mass 5kg vertically downward with an initial speed of 12.0m/s from a height
30.0m above the ground. How long does it take the stone to reach the ground, and what is the speed of
the stone just before it hits the ground?
Select one:
a. 2.47 s, 27.3m/s
b. 1.53 s, 27.3m/s
c. 2.47 s, 24.25m/s
d. 1.54 s, 24.25m/s
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The correct answer is: 1.53 s, 27.3m/s

Question 11
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A train moving with a velocity of 10m/s accelerates uniformly at 1m/s 2 until it reaches a velocity of
15m/s. Calculate the velocity reached 100 m from the place where the acceleration began.
Select one:
a. 17.3m/s
b. 62.5m/s
c. 10.5m/s
d. 22.5m/s
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Question 12
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A rectangular plate of dimensions 6cm by 4cm and thickness 2mm is placed with its largest face flat on
the surface of the water. Calculate the force due to surface tension on the plate and the downward
force if the plate is placed vertically and its longest side just touches the water. (S.T. of water = 7 x 10 -2
Nm -1).
Select one:
a. 1.0 x 10 –2 N; 8.6 x 10 -3 N
b. 1.4 x 10 –2N; 9 x 10 -3 N
c. 8.6 x 10 -2 N; 1.4 x 10 -8 N
d. 1.4 x 10 -2 N; 8.68 x 10 -3 N
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The correct answer is: 1.4 x 10 -2 N; 8.68 x 10 -3 N

Question 13
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Question text
An object of mass 50g is projected at angle 60° to the horizontal with an initial speed of 20m/s. Calculate
the horizontal range and the time taken to reach maximum height.
Select one:
a. 34.6 m, 1.73 s
b. 30.0 m, 1.65 s
c. 8.6 m, 1.00 s
d. 7.5 m, 2.00 s
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The correct answer is: 34.6 m, 1.73 s
Question 14
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A projectile is launched with an initial velocity of 35 m/s at an angle of 40° to the horizontal. Find the
velocity at time t = 2s.
Select one:
a. 0
b. 59.1m
c. 13.2m
d. 26.9m
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Question 15
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Question text
A baseball pitcher is warming up as he travels to a game by plane. The plane is flying at 400 km/h[W]
relative to the ground. The pitcher throws a ball at 150 km/h relative to the aeroplane. What is the ball's
velocity relative to the ground, if the pitcher throws the ball towards the rear of the plane?
Select one:
a. 550 km/h[W]
b. 250 km/h[W]
c. 550 km/h[E]
d. 400 km/h[W]
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The correct answer is: 250 km/h[W]
Question 16
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Question text
A flywheel of radius 20cm and mass 15kg is mounted on a horizontal axle. Calculate its moment of
inertia about the axis passing through its centre of mass.
Select one:
a. 10kgm 2
b. 2.0kgm 2
c. 3kgm 2
d. 0.3kgm 2
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Question 17
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Question text
A force of 30.0N is acted on a block of mass 15.0kg placed on a horizontal surface, but the box does not
move. Calculate the magnitude of the frictional force between the surfaces when the applied force is
along the horizontal and when it makes angle 60° with the horizontal.
Select one:
a. 20.0N, 10.0N
b. 10.0N, 17.32N
c. 30.0N, 15.0N
d. 20.0N, 20.0N
Feedback
The correct answer is: 30.0N, 15.0N
Question 18
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Question text
A wooden box slides down an inclined plane with uniform acceleration. It starts from rest and attains a
speed of 10m/s in 3.0s. Find the acceleration.
Select one:
a. 3.00m/s 2
b. 3.65m/s 2
c. 3.33m/s 2
d. 5.50m/s 2
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Question 19
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Question text
Calculate mc045-1.jpg if mc045-2.jpg , mc045-3.jpg, and mc045-4.jpg .
Select one:
a. 16 k
b. -3 i - 4 j + 22 k
c. 3 i + 4 j + 10 k
d. 6 i + 8 j + 4 k
Feedback
The correct answer is: 16 k
Question 20
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Select one:
a. Kilogramme
b. Metre
c. Kelvin
d. Newton
Feedback
The correct answer is: Newton
Question 21
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One end of a steel rod of diameter 29mm and length 81cm is held in a vise. A force of magnitude 62kN is
applied perpendicularly to the other end, pulling directly away from the vise. What is the stress on the
rod (Young’s modulus for steel is 2.0 x 10 11N/m 2)?
Select one:
a. 2.2 x 10 8N/m 2
b. 9.4 x 10 7N/m 2
c. 5.2 x 10 7N/m 2
d. 3.3 x 10 7N/m 2
Feedback
The correct answer is: 9.4 x 10 7N/m 2
Question 22
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Question text
The position of a particle is given as mc133-1.jpg. What is its average velocity between 2 and 3 seconds?
Select one:
a. 0
b. 117m/s
c. 62m/s
d. 88m/s
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Question 23
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Question text
Which of the following is a scalar quantity?

Select one:
a. Force
b. Altitude
c. Weight
d. Displacement
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The correct answer is: Altitude
Question 24
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Question text
The period T of a loaded spring oscillator depends on its mass m and spring constant k, as follows:
mc010-1.jpg where x and y are integers and c is a dimensionless constant. Find the values of x and y.
Select one:
a. mc010-2.jpg
b. mc010-3.jpg
c. mc010-4.jpg
d. mc010-5.jpg
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Question 25
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Question text
A race car moves such that its position is given as mc179-1.jpg Find the instantaneous velocity of the car
at t = 4.00s.
Select one:
a. 35m/s
b. 11m/s
c. 12m/s
d. 33m/s
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Question 26
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Question text
A wire is subjected to a tensile stress of mc059-1.jpg causing a strain of 0.5 on the wire. Calculate the
Young’s modulus of the wire.
Select one:
a. mc059-2.jpg
b. mc059-3.jpg
c. mc059-4.jpg
d. mc059-5.jpg
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Question 27
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Question text
The acceleration of a particle is given by mc084-1.jpg. If the particle is at rest at t = 0, find the velocity of
the particle after t = 2s.
Select one:
a. 5.0m/s
b. 4.0m/s
c. 8.0m/s
d. 12.5m/s
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Question 28
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Question text
A car moving with a velocity of 54km/h accelerates uniformly at the rate of 2m/s 2. Calculate the
distance travelled from the place where the acceleration began to that where the velocity reaches
72km/h.
Select one:
a. 43.75m
b. 2.5m
c. 112m
d. 12m
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Question 29
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Question text
The average velocity and the instantaneous velocity of an object will be the same if
Select one:
a. the object's speed is constant

b. the object's acceleration is zero
c. the object's velocity is always positive
d. they are never the same
Feedback
The correct answer is: the object's speed is constant
Question 30
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Question text
Two forces act on a block of mass 2kg as follows: 100N at 170.0° and 100N at 50.0°. Find the resultant
force.
Select one:
a. 200N at 110°
b. 100N at 110°
c. 0N
d. 100N at 10°
Feedback
The correct answer is: 100N at 110°
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Grade 0.00 out of 30.00 (0%)
Question 1
Not answered
Marked out of 1.00
Question text
A train moving with a velocity of 10m/s accelerates uniformly at 1m/s 2 until it reaches a velocity of
15m/s. Calculate the distance travelled during the acceleration.
Select one:
a. 21.2m
b. 15.5m
c. 17.3m
d. 62.5m
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Question 2
Not answered
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Question text
Select one:
a. Kilogramme
b. Metre
c. Kelvin
d. Newton
Feedback
The correct answer is: Newton
Question 3
Not answered
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Question text
A Carnot cycle is composed of:
Select one:
a. four reversible processes, two isothermal and two adiabatic.
b. four reversible processes, three isothermal and one adiabatic.
c. four reversible processes, one isothermal and three adiabatic.
d. four reversible isothermal processes.
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The correct answer is: four reversible processes, two isothermal and two adiabatic.
Question 4
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Question text
Which of the following are vector quantities? I. Speed II. Displacement III. Acceleration IV. Electric field
intensity V. Magnetic induction
Select one:
a. I, II and III only
b. II, III and IV only
c. III, IV and V only
d. II, III, IV and V only
Feedback
The correct answer is: II, III, IV and V only
Question 5
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Question text
Given that mc001-1.jpg find the triple produc t mc001-2.jpg
Select one:
a. -55
b. -44
c. -33
d. -22
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Question 6
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Question text
A car accelerates uniformly at 3m/s 2 covering 70m in 5s. Calculate the initial and final velocities.
Select one:
a. 7.5m/s, 61.5m/s
b. 6.5m/s, 21.5m/s
c. 6.5m/s, 22.8m/s
d. 7.2m/s , 32.5m/s
Feedback
The correct answer is: 6.5m/s, 21.5m/s
Question 7
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Question text
Ductility refers to the ability of a metal to
Select one:
a. be deformed temporarily
b. be deformed permanently
c. shrink under compression
d. break under tension
Feedback
The correct answer is: be deformed permanently
Question 8
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Question text
Vectors A and B are given as A = 3 i + 4 j –2 k and B = 2 i – 6 j + 3 k. What is the angle between vectors A
and B?
Select one:
a. 134.4°
b. 73.4°
c. 45.6°
d. 129.5°
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Question 9
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Question text
The position of a particle is given as mc176-1.jpg. Calculate the velocity at 2s.
Select one:
a. 88m/s
b. 62m/s
c. 26m/s
d. 150m/s
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Question 10
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Question text
the instantaneous velocity at time t = 3.0s.
Select one:
a. 15m/s
b. 20m/s
c. 30m/s
d. 5m/s
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Question 11
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Question text
Which of the following is a fundamental S.I. unit?
Select one:
a. Metre
b. Joule
c. Hertz
d. Newton
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The correct answer is: Metre
Question 12
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Question text
A 1500 kg car moves around a curve 40m in radius and undergoes a centripetal acceleration of 0.4m/s 2.
What is its constant speed?
Select one:
a. 6.0 m/s
b. 5.0 m/s
c. 4.0 m/s
d. 10.0 m/s
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Question 13
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Question text
Which of the following physical quantities is a vector?
Select one:
a. displacement
b. current
c. work
d. area
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The correct answer is: displacement
Question 14
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Question text
A man throws a ball vertically upward with an initial speed 40m/s. What is the velocity of the ball on
striking the ground?
Select one:
a. 30m/s
b. 40m/s
c. 10m/s
d. Insufficient information
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Question 15
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A bullet of mass 0.5kg is shot into a 100kg block which is initially at rest on a frictionless horizontal
surface. The bullet comes to rest within the block and both slides at 0.5m/s in the same direction as the
incoming bullet. Calculate the initial speed of the bullet.
Select one:
a. 400.5m/s
b. 300.5m/s
c. 200.5m/s
d. 100.5m/s
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Question 16
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Question text
The heat taken in when n moles of gas expands isothermally from V 1 to V 2 is:
Select one:
a. mc172-1.jpg
b. mc172-2.jpg
c. mc172-3.jpg
d. mc172-4.jpg
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Question 17
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Question text
A log of wood of volume 0.1m 3 and density of 700kgm -3 floats in water of density 1000kgm -3.
Calculate the volume of the log immersed in water.
Select one:
a. 0.61m 3
b. 2.9m 3
c. 0.21m 3
d. 0.07m 3
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The correct answer is: 0.07m 3
Question 18
Not answered
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Question text
In an isothermal process
Select one:
a. there is change in internal energy
b. there is no change in heat energy
c. there is change in enthalpy
d. there is no change in temperature
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The correct answer is: there is no change in temperature
Question 19
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Question text
Which of the following equations are expressions of Kepler’s third law?
(i) mc002-1.jpg (ii) mc002-2.jpg (iii) mc002-3.jpg (iv) mc002-4.jpg
Select one:
a. (i) & (ii)
b. (i) & (iii)
c. (i) & (iii)
d. (ii) & (iv)
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The correct answer is: (i) & (ii)
Question 20
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Question text
At what temperature is the Fahrenheit scale twice the centigrade scale?
Select one:
a. -40°F
b. 320°C
c. 160°C
d. 160°F
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Question 21
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Question text
A man kicks a stationary ball of mass 200g, giving it a speed of 100cm/s. What impulse is imparted to the
ball?
Select one:
a. 0.2kgm/s
b. 20kgm/s
c. 2kgm/s
d. 200kgm/s
Feedback
The correct answer is: 0.2kgm/s
Question 22
Not answered
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Question text
A stone of mass 20kg is thrown vertically upward to attain a maximum height of 20m. Calculate the
initial speed with which the stone was thrown.
Select one:
a. 40m/s
b. 20m/s
c. 30m/s
d. 60m/s
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Question 23
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Question text
Castor oil at 20°C has a coefficient of viscosity 2.42 Nsm -2 and a density 940kgm -3. Calculate the
terminal velocity of a steel ball of radius 2.0mm falling under gravity ( ñ steeel = 7800kgm -3).
Select one:
a. 0.25 ms -1
b. 2.5 ms -1
c. 0.0025 ms -1
d. 0.025 ms -1
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The correct answer is: 0.025 ms -1
Question 24
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Question text
A force of 2.4N is applied through a cross section area of 0.12m 2 to move a fluid over a velocity
gradient of 1.25 s -1, evaluate the dynamic viscosity of the fluid.
Select one:
a. 2.00N.s/m 2
b. 8.00N.s/m 2
c. 4.00N.s/m 2
d. 16.00N.s/m 2
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The correct answer is: 16.00N.s/m 2
Question 25
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Question text
Determine the moment when the distance of mc032-1.jpg is transited by a force of mc032-2.jpg.
Select one:
a. mc032-3.jpg
b. mc032-4.jpg
c. 8 i - 16 j - 12 k
d. mc032-5.jpg
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The correct answer is: 8 i - 16 j - 12 k
Question 26
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Question text
A heavy flywheel rotating on its axis is slowing down because of friction on its bearing. At the end of the
first 90 seconds, its angular velocity is 0.5 times its initial angular velocity. Find its angular velocity at the
end of the second minute.
Select one:
a. 0.90 ù o
b. 0.55 ù o
c. 0.33ù o
d. 0.80ù o
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The correct answer is: 0.33ù o
Question 27
Not answered
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Question text
A force of magnitude 100N is applied to a body of mass 2kg at an angle 30° to the horizontal. Calculate
the acceleration of the body. Neglect friction.
Select one:
a. 23.2m/s 2
b. 34.5m/s 2
c. 54.5m/s 2
d. 43.3m/s 2
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Question 28
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Question text
The unit of momentum is
Select one:
a. J/s
b. N/s
c. kgm/s
d. Nms
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The correct answer is: kgm/s
Question 29
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Question text
A swimmer jumps into a river and swims straight for the other side at 1.5 km/h[N] relative to the water.
There is a current in the river of 2.0 km/h[W]. What is the swimmer's velocity relative to the shore?
Select one:
a. 0.5 km/h[N53°E]
b. 2.5 km/h[S53°W]
c. 0.5 km/h[N53°W]
d. 2.5 km/h[N53°W]
Feedback
The correct answer is: 2.5 km/h[N53°W]
Question 30
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Question text
Which of the following is the correct statement of the second law of thermodynamics?
Select one:
a. It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert
heat energy into work.
b. There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat
energy.
c. It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without
the aid of an external source.
d. all options are correct
Feedback
The correct answer is: all options are correct
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• SPECIALIST INFO

Practice Questions For

done by the gas is (hint: for a diatomic gas g = 1.4).

b. gradient of a velocity-time graph

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Completed on Friday, 26 March 2021, 10:25 AM

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b. Newton’s second law

The correct answer is:

The displacement x( t) of a particle as a function of time t is given as .

The correct answer is:

Given that find the triple product

UTME + UNIVERSITY POST UTME + UNDERGRADUATE COURSES + OTHERS

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Bernoulli’s Equation is based upon

a. conservation of energy. Correct

c. the second law of motion.

d. the third law of motion.

The correct answer is: conservation of energy.

Marked out of 1.00

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d. Thermal conductivity Correct

The correct answer is: Thermal conductivity

Mark 1.00 out of 1.00

The correct answer is: 307.2kg

Mark 1.00 out of 1.00

The correct answer is: 4.59s

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a. 2.2ms -2; 60N

d. 3.3ms -2; 6.7N

The correct answer is: 3.3ms -2; 6.7N

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a. 5027.2 rad/s, 31.42m/s

b. 31.42 rad/s, 4.71m/s

c. 800 rad/s, 42.9m/s

d. 10.5 rad/s, 4.71m/s

The correct answer is: 31.42 rad/s, 4.71m/s

Marked out of 1.00

a. 32.34 ms -1, 4.075 x 10 -2 m 3 s -1

b. 5.687 ms -1, 7.165 x 10 -3 m 3 s -1

c. 32.34 ms -1, 7.165 x 10 -3 m 3s -1

d. 5.687 ms -1, 4.075 x 10 -2 m 3s -1

The correct answer is: 5.687 ms -1, 7.165 x 10 -3 m 3 s -1

The correct answer is: 0.50m/s 2

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The correct answer is: 0.49

Marked out of 1.00

The correct answer is: 31.1N east

Marked out of 1.00

The correct answer is: 0.0178 m 3/s

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