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Class 11th Physics

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Class : 11 Physics Date: 18. 8 .

2024
I. Choose the correct answer: 10 X 1 = 10
1. When a car takes a sudden left turn in the curved road, passengers are pushed towards the right
due to (a) inertia of direction (b) inertia of motion (c) inertia of rest (d) absence of inertia
2. An object of mass m held against a vertical wall by applying horizontal force F . The minimum
value of the force F is (a) Less than mg (b) Equal to mg (c) Greater than mg (d) Cannot
determine
3. Two masses m1 and m2 are experiencing the same force where m1 < m2 . The ratio of their
acceleration a1 /a2 is (a) 1 (b) less than 1 (c) greater than 1 (d) all the three cases
4. The lines of forces act at a point is called as (a) concurrent forces (b) co-planar forces (c)
equilibrium
5. If force is the cause then the effect is (a) mass (b) potential energy (c) acceleration (d) Inertia
6. Force acting on the particle moving with constant speed is
(a) always zero (b) need not be zero (c) always non zero (d) cannot be concluded
7. When the object is moving at constant velocity on the rough surface –
(a) net force on the object is zero (b) no force acts on the object
(c) only external force acts on the object (d) only kinetic friction acts on the object
8. Rate of change of momentum of an object is = (a) acceleration (b) work done (c) force (d)
impulse
9. The rate of change of velocity is 1 ms -2 when a force is applied on the body of mass 75 gm the
force is (a) 75 N (b) 0.75 N (c) 0.075 N (d) 0.75 x 10-3 N
10.A book is at rest on the table which exerts a normal force on the book. If this force is considered
as reaction force, what is the action force according to Newton’s third law?
(a) Fg exerted by Earth on the book (b) Fg exerted by the book on Earth (c) N exerted by the
book on the table (d) None of the above

Class : 11 Physics Date: 18. 8 .2024


I. Choose the correct answer: 10 X 1 = 10
1. When a car takes a sudden left turn in the curved road, passengers are pushed towards the right
due to (a) inertia of direction (b) inertia of motion (c) inertia of rest (d) absence of inertia
2. An object of mass m held against a vertical wall by applying horizontal force F . The minimum
value of the force F is (a) Less than mg (b) Equal to mg (c) Greater than mg (d) Cannot
determine
3. Two masses m1 and m2 are experiencing the same force where m1 < m2 . The ratio of their
acceleration a1 /a2 is (a) 1 (b) less than 1 (c) greater than 1 (d) all the three cases
4. The lines of forces act at a point is called as (a) concurrent forces (b) co-planar forces (c)
equilibrium
5. If force is the cause then the effect is (a) mass (b) potential energy (c) acceleration (d) Inertia
6. Force acting on the particle moving with constant speed is
(a) always zero (b) need not be zero (c) always non zero (d) cannot be concluded
7. When the object is moving at constant velocity on the rough surface –
(a) net force on the object is zero (b) no force acts on the object
(c) only external force acts on the object (d) only kinetic friction acts on the object
8. Rate of change of momentum of an object is = (a) acceleration (b) work done (c) force (d)
impulse
9. The rate of change of velocity is 1 ms -2 when a force is applied on the body of mass 75 gm the
force is (a) 75 N (b) 0.75 N (c) 0.075 N (d) 0.75 x 10-3 N
10.A book is at rest on the table which exerts a normal force on the book. If this force is considered
as reaction force, what is the action force according to Newton’s third law?
(a) Fg exerted by Earth on the book (b) Fg exerted by the book on Earth (c) N exerted by the
book on the table (d) None of the above
II. Answer the following: 5 x 2 =10
11.State Newton’s second law
12.Define one newton.
13.What are inertial frames?
14.Write down the kinematic equations for angular motion
15.A particle of mass 2 kg experiences two forces, What is the
acceleration of the particle?
III. Answer the following: 5 x 3 = 15
16.What are concurrent forces? State Lami’s theorem.
17.What are inertial frames?
18.Explain in detail the triangle law of addition
19.Define angular displacement and angular velocity
20.A stone of mass 2 kg is attached to a string of length 1 meter. The string can withstand
maximum tension 200 N. What is the maximum speed that stone can have during the whirling
motion?
IV. Answer in detail: 3 x 5 = 15
21.Prove the law of conservation of linear momentum
22.Explain the motion of blocks connected by a string in Vertical motion
23.Derive the kinematic equations of motion for constant acceleration.

II. Answer the following: 5 x 2 =10


11.State Newton’s second law
12.Define one newton.
13.What are inertial frames?
14.Write down the kinematic equations for angular motion
15.A particle of mass 2 kg experiences two forces, What is the
acceleration of the particle?
III. Answer the following: 5 x 3 = 15
16.What are concurrent forces? State Lami’s theorem.
17.What are inertial frames?
18.Explain in detail the triangle law of addition
19.Define angular displacement and angular velocity
20.A stone of mass 2 kg is attached to a string of length 1 meter. The string can withstand
maximum tension 200 N. What is the maximum speed that stone can have during the whirling
motion?
IV. Answer in detail: 3 x 5 = 15
21.Prove the law of conservation of linear momentum
22.Explain the motion of blocks connected by a string in Vertical motion
23.Derive the kinematic equations of motion for constant acceleration.

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