Nothing Special   »   [go: up one dir, main page]

Exam021 MIdterm Gen - Phy1

Download as docx, pdf, or txt
Download as docx, pdf, or txt
You are on page 1of 7

MIDTERM EXAM

SENIOR HIGH SCHOOL*SY2021-2022


MIDTERM_GENERAL PHYSICS 1

Name: ___________________________________________ Score: ______Rating: ______

Year and Section: ___________________________________ Date: __________________

Direction: Read the question carefully and choose the best answer.

1 Which of the following is not a requirement of standard unit?

A. it should be the same for all quantities B. it should be well defined

C. it should be universally accepted D. it should be fixed with time and place

2 What system unit is used in this scenario? Charlie would like to buy materials to be use in his project, the hardware store is
located 7493 meter from his house. It will take 234 second to walk from his house to the hardware store. After buying the
material the weight of all he purchase is 1.7 kilograms. That is why he take almost double the time to get back home.

A. International System B. M.K.S system

C. Gaussian system D. US Unit system

3 State the significant figures in the measurement of 0.0004500

A. 1 B. 2

C. 3 D. 4

4 Shiela is a student from the United States. She study there from elementary to junior high school. A month before the
pandemic Shiela visited the Philippines and because of that she and her family decided to enrol her here. While she is
taking the General Physics 1 class with Teacher Jerome they determine units of measurement and they have a convention
to use the International System. Which of the following is the unit base from the SI?

A. 250 kg, 700 km and 300 s B. 250 g, 700 km and 300 s

C. 250 kg, 700 m and 300 s D. 250 g, 700 m and 300 s

5 The distance of San Benon hot spring from its entrance is 250 m. What does zero connotes?

A. not significant B. maybe significant

C. significant D. sometimes significant

6 The mean length of an object is 5 cm. Which of the following measurements is most accurate?

A. 4.9 cm B. 4.805 cm
1

Dometita, M. TLC Basic Education Department


MIDTERM EXAM
SENIOR HIGH SCHOOL*SY2021-2022
MIDTERM_GENERAL PHYSICS 1

C. 5.25 cm D. 5.4 cm

7 Which of the following is most precise?

A. 1.200 x 103 km B. 1.20 x 103 km

C. 1.2 x 103 km D. 1200 km

8 Which of the following quantities is considered a vector?

A. Temperature B. Distance

C. Mass D. Velocity

9 What do we called the quantity that has only magnitude?

A. Physical Quantity B. Chemical Quantity

C. Vector D. Scalar

10 What do we called the quantity that has magnitude and direction?

A. Physical Quantity B. Chemical Quantity

C. Vector D. Scalar

11 The components of vector 𝐴⃗are given as follows: Ax = 10.5 Ay = 15.2 What is the magnitude of the vector?

A. 10.5 B. 12.5

C. 18.5 D. 25.5

12 The components of vector 𝐴⃗are given as follows: Ax = 5.6 Ay = -4.7 What is the angle between vector 𝐴⃗and positive
direction of x – axis?

A. 320° B. 180°

C. 90° D. 45°

13 he components of vectors 𝐴⃗and 𝐵⃗are given as follows: Ax = 5.1 Bx = -2.6 Ay = -5 By = -4.3 What is the

Dometita, M. TLC Basic Education Department


MIDTERM EXAM
SENIOR HIGH SCHOOL*SY2021-2022
MIDTERM_GENERAL PHYSICS 1
magnitude of vector sum 𝐴⃗+ 𝐵⃗

A. 5.1 B. 2.5

C. -9.3 D. 9.6

14 The magnitude of vector 𝐴⃗is 8.6. Vector lies in the fourth quadrant and forms an angle of 37 ̊ with the x-axis. What are the
components of vector 𝐴⃗?

A. Ax = -6.9 Ay = 5.2 B. Ax = -6.9 Ay = -5.2

C. Ax = 6.9 Ay = 5.2 D. Ax = 6.9 Ay = -5.2

15 Find the magnitude of vector 𝐶⃗= 𝐴⃗- 𝐵⃗.⃗ Use all the information presented by the graph.

A. 5.7 B. 6.9

C. 7.4 D. 8.6

16 Which of the following statements is true?

A. A scalar quantity can be added to a vector B. Scalar quantities are path dependent, while vectors
are not.

C. Scalar quantities and vector quantities can both D. A scalar contains magnitude and direction while a
be added algebraically vector does not.

Dometita, M. TLC Basic Education Department


MIDTERM EXAM
SENIOR HIGH SCHOOL*SY2021-2022
MIDTERM_GENERAL PHYSICS 1
17 You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. What will be your average speed over the 12 km drive?

A. greater than 70 km/h. B. equal to 70 km/h.

C. less than 70 km/h. D. maybe equal to 70 km/h.

18 Which of the following situations is not possible?

A. An object has velocity directed east and B. An object has velocity directed east and
acceleration directed west. acceleration directed east.

C. An object has constant non-zero D. An object has constant non-zero velocity and
acceleration and changing velocity. changing acceleration.

19 An object moving in the +x direction experiences an acceleration of +2.0 m/s2. Which of the following best describe it?

A. travels 2.0 m in every second. B. is traveling at 2.0 m/s.

C. is decreasing its velocity by 2.0 m/s every second. D. increasing its velocity by 2.0 m/s every second.

20 Under what condition is average velocity equal to the average of the object's initial and final velocity?

A. This can only occur if there is no acceleration. B. This can only occur if the acceleration is constant

C. This can occur only when the velocity is zero. D. The acceleration must be constantly increasing

21 A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances
along it from the start, as shown in the figure. The car reaches a speed of 140 km/h as it passes marker 2. Where on the
track was the car when it was traveling at half this speed that is at 70 km/h?

A. Before Marker 1 B. At marker 1

C. Between Marker 1 and 2 D. At Marker 2

22 A 10-kg rock and 20-kg rock are dropped from the same height and experience no significant air resistance. If it takes the
20-kg rock a time T to reach the ground, what time will it take the 10-kg rock to reach the ground?

A. T B. 2T

C. 3T D. 4T

23 Two objects are dropped from a bridge, an interval of 1.0 s apart. Air resistance is negligible. During the time that both
objects continue to fall, what will be their separation?

A. Increases B. Decreases

Dometita, M. TLC Basic Education Department


MIDTERM EXAM
SENIOR HIGH SCHOOL*SY2021-2022
MIDTERM_GENERAL PHYSICS 1
C. Increases at first, but then stay constant D. Decreases at first, but then stay constant

24 Which of the following graphs represent an object having zero acceleration?

A. Graphs a and c B. Graphs b and d

C. Graphs a and b D. Graphs c and d

25 A ball is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration due to gravity is 1.5 m/s2
and there is no atmosphere. What is the maximum height reached by the ball?

A. 8.0 m B. 18 m

C. 28 m D. 48 m

26 A stone is thrown with an initial upward velocity of 7.0 m/s and experiences negligible air resistance. If we take upward as
the positive direction, what is the velocity of the stone after 0.50 s

A. 2.1 m/s B. 4.9 m/s

C. -2.1 m/s D. -4.9 m/s

27 A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, causing the car to slow down with constant
acceleration. The car comes to a stop in a distance of 120 m. How fast was the car moving when it was 60.0 m past the
point where the brakes were applied?

A. 22.5 m/s B. 18. 4m/s

C. 15.0 m/s D. 12.1 m/s


5

Dometita, M. TLC Basic Education Department


MIDTERM EXAM
SENIOR HIGH SCHOOL*SY2021-2022
MIDTERM_GENERAL PHYSICS 1

28 A child standing on a bridge throws a rock straight down. The rock leaves the child's hand at time t = 0 s. If we take
upward as the positive direction, which of the graphs shown below best represents the acceleration of the stone as a
function of time?

A. B.

C. D.

29 The motions of a car and a truck along a straight road are represented by the velocity-time graphs in the figure. The two
vehicles are initially alongside each other at time t = 0.

Dometita, M. TLC Basic Education Department


MIDTERM EXAM
SENIOR HIGH SCHOOL*SY2021-2022
MIDTERM_GENERAL PHYSICS 1
At time T, what is true of the distances traveled by the vehicles since time t = 0?

A. They will have traveled the same distance. B. The truck will not have moved.

C. The car will have travelled further than the truck. D. The truck will have travelled further than the car.

30 A car is traveling north at 17.7m/s. After 12 s its velocity is 14.1m/s in the same direction. Find the magnitude and
direction of the car's average acceleration.

A. 0.30 m/s2, South B. 2.7 m/s2, South

C. 0.30 m/s2, North D. 2.7 m/s2, North

Problem Solving: Solve the following and show your solution. You will be graded base from the following: Given and required 1 pt.,
Solution 3 pt., Graphical Representation 1 pt., correct answer 1pt.

31-35.) To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the
water. If the height of the bridge is 71 m, how long will it take for the stone to hit the water? Neglect air resistance.

36-40.) A train starts from rest and accelerates uniformly until it has traveled 2.1 km and acquired a forward velocity of 24m/s. The
train then moves at a constant velocity of 24 m/s for 400 s. The train then slows down uniformly at 0.065m/s2, until it is brought to a
halt. What is the distance traveled by the train while slowing down?

Dometita, M. TLC Basic Education Department

You might also like