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Master Force and Momentum MCQs: Powerful Practice for Exam Success”

Questions on force and momentum mcqs, and impulse form a core part of mechanics in Class 9–12 Physics and competitive exams like NEET, JEE, and state board tests. These force and momentum mcqs  concepts connect Newton’s laws with real-life applications such as collisions, recoil of guns, rockets, and sports-related impacts.

Force and momentum MCQs test how changes in force over time lead to changes in momentum, emphasizing impulse as the bridge between the two concepts.Many force and momentum mcqs questions focus on collisions, where conservation of momentum applies while forces act for very short time intervals.

Force and momentum mcqs problems highlight how the same force can produce different momentum changes depending on the duration of action.Force and momentum MCQs frequently connect Newton’s second law with momentum by framing acceleration as the rate of change of momentum.

This curated set of Force and Momentum MCQs with options and correct answers, focusing on impulse, momentum conservation, inertial frames, and force analysis. Practicing these force and momentum mcqs questions will strengthen both conceptual understanding and numerical problem-solving speed.

Table of Contents

Force and Momentum MCQs with Options and Answers

1. Two masses of 1 g and 4 g are moving with equal kinetic energy. The ratio of the magnitudes of their linear momentum is

A. 4 : 1
B. 1 : 2
C. √2 : 1
D. 1 : 16

 Answer: B


2. A batsman hits back a ball of mass 0.4 kg straight in the direction of the bowler without changing its initial speed of 15 m/s. The impulse imparted to the ball is

A. 10 Ns
B. 12 Ns
C. 20 Ns
D. 30 Ns

 Answer: B


3. Area under the force–time graph gives the change in

A. Velocity
B. Acceleration
C. Linear momentum
D. Impulsive force

Answer: C


4. A force acts on a body of mass 50 kg for 10 seconds. When the force stops acting, the body covers 80 m in the next 10 seconds. The magnitude of the force is

A. 40 N
B. 50 N
C. 30 N
D. 60 N

Answer: A


5. A horizontal beam is pivoted at one end. What should be the value of mass m to maintain the beam in a horizontal position?

A. 2 kg
B. 1 kg
C. 4 kg
D. 2.5 kg

Answer: C


6. Which of the following is NOT a fundamental force in nature?

A. Weak nuclear force
B. Gravity
C. Friction
D. Electromagnetic force

Answer: C


7. A physical quantity A on multiplication with velocity gives energy. Quantity A is

A. Mass
B. Momentum
C. Force
D. Acceleration

Answer: B


8. A body of mass 10 kg has velocity 10 m/s. A force acts for 4 s and reverses the velocity to 2 m/s. The acceleration produced is

A. 3 m/s²
B. −3 m/s²
C. 3 ms²
D. −0.3 ms²

Answer: B


9. Five objects of different masses are dropped from height h. Which quantity changes at the instant they strike the ground?

A. Velocity
B. Momentum
C. Height
D. Acceleration

Answer: B


10. A force of 0.03 N acts on a body of mass 0.5 kg initially at rest for 10 s. The momentum acquired is

A. 0.15 kg·m/s
B. 0.3 kg·m/s
C. 0.015 kg·m/s
D. 0.05 kg·m/s

Answer: B


11. A bullet of mass 20 g moving at 100 m/s is brought to rest in 1/50 s. The impulse and average force are

A. 2 Ns, 100 N
B. 2 Ns, 200 N
C. 4 Ns, 100 N
D. 4 Ns, 200 N

Answer: B


12. A force F acts at the origin. The moment of force about point (1, −1) is

A. F(i − j)
B. F(i + j)
C. F(−i − j)
D. F(−i + j)

Answer: B


13. The resultant of forces 5 N and 10 N cannot be

A. 12 N
B. 4 N
C. 8 N
D. 5 N

 Answer: B


14. A batsman hits a 0.2 kg ball straight back at 6 m/s. The impulse imparted is

A. 3.2 Ns
B. 2.4 Ns
C. 1.6 Ns
D. 4 Ns

Answer: B


15. Apparent weight of a 1 kg body falling freely with acceleration 10 m/s² is

A. 10 kg-wt
B. 2 kg-wt
C. 0
D. 0.5 kg-wt

 Answer: C


16. A force of 10 N acts on a 0.5 kg body for 0.25 s. Momentum gained is

A. 0.25 Ns
B. 2.5 Ns
C. 1.25 Ns
D. 0.5 Ns

Answer: B


17. A man throws four balls per second, each of mass 3 kg at 5 m/s. Contact time is 0.2 s. Average force per second is

A. 15 N
B. 30 N
C. 150 N
D. 75 N

Answer: B


18. When a train turns, passengers are thrown outward due to

A. Acceleration
B. Speed
C. Inertia of direction
D. Both (a) and (c)

Answer: C


19. Which is a characteristic of force?

A. Can start motion
B. Can reduce speed
C. Can change direction
D. All of these

 Answer: D


20. Forces of 5 N right and 10 N left act on a block. Resultant force is

A. 15 N right
B. 15 N left
C. 5 N right
D. 5 N left

 Answer: D


21. Momentum depends on

A. Velocity and time
B. Mass and weight
C. Mass and distance
D. Mass and velocity

 Answer: D


22. Earth is not an inertial frame because

A. It revolves
B. It rotates
C. Newton’s laws fail
D. Both (a) and (b)

 Answer: D


23. A machine gun fires 30 g bullets at 6/s with speed 400 m/s. Force required to hold gun is

A. 30 N
B. 40 N
C. 72 N
D. 400 N

 Answer: C


24. A 0.5 kg ball rebounds from a wall at same speed 2 m/s. Contact time = 1 ms. Force exerted is

A. 2000 N
B. 1000 N
C. 5000 N
D. 125 N

Answer: A


25. Force on a rocket is 400 N. Exhaust speed = 500 m/s. Fuel burn rate is

A. 0.8 kg/s
B. 10.8 kg/s
C. 1.6 kg/s
D. 8 kg/s

Answer: A


26. If momentum p = α + βt², net force varies as

A. t²
B. t⁻¹
C. t⁻²
D. t

 Answer: D


27. X and Y components of force F at 30° to x-axis are

A. F, F/√2
B. F/√2, F
C. F/2, √3F/2
D. √3F/2, F/2

Answer: D


28. Example of inertial frame is

A. Slowing train
B. Uniformly moving car
C. Merry-go-round
D. Aircraft taking off

Answer: B


29. A cricket ball rebounds from bat: impulse on bat is

A. 15 Ns
B. 25 Ns
C. 30 Ns
D. 10 Ns

 Answer: A


30. Rocket ejects gas at 50 m/s, mass rate = 0.1 kg/s. Rocket mass = 2 kg. Acceleration is

A. 5
B. 5.2
C. 2.5
D. 25

Answer: C


31. A gun fires n bullets/s, each mass m, velocity V. Force on gun is

A. n m V
B. mV/n
C. mVn²
D. n m V²

 Answer: A


32. Two 10 N forces act at 60°. Net acceleration of 10 kg body is

A. 2√3 m/s²
B. √3 m/s²
C. 3√3 m/s²
D. 4√3 m/s²

 Answer: B


33. Impulse is

A. Scalar
B. Rate of change of momentum
C. Force
D. Energy

Answer: B


34. Which force is self-adjusting?

A. Static friction
B. Dynamic friction
C. Limiting friction
D. Viscous force

Answer: A

force and momentum mcqs

Conclusion

Force and momentum mcqs, and impulse test a student’s ability to connect Newton’s laws with measurable physical quantities like velocity, acceleration, and time. These force and momentum mcqs  problems highlight how momentum changes during collisions, recoil, and motion under applied forces.

Regular practice of Force and Momentum MCQs sharpens conceptual clarity and numerical accuracy, both force and momentum mcqs of which are crucial for scoring well in board exams and competitive tests. Mastery of force and momentum mcqs  impulse–momentum relationships also builds a strong foundation for advanced topics such as rotational dynamics and modern physics.


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