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Laws of Motion Physics Practice

Physics

A collection of physics problems covering Newton's Laws, momentum, force, acceleration, and impulse.

Mechanics Dynamics Kinematics

10 Questions Hard Ages 16+ Oct 2, 2026

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About this Study Set

This study set covers Physics through 10 practice questions. A collection of physics problems covering Newton's Laws, momentum, force, acceleration, and impulse. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Laws of Motion Physics Practice study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Inertia of an object is directly dependent on its:

A Impulse
B Momentum
C Mass
D Density

2 A body of mass 6 kg changes velocity from 3 m/s to 7 m/s. What is the change in momentum?

A 48 N-s
B 24 N-s
C 36 N-s
D 12 N-s

3 If momentum p = 2 + 3t^2, what is the force acting on the particle at t = 3s?

A 18 N
B 54 N
C 60 N
D 15 N

4 A body is acted upon by balanced forces if:

A It is at rest only
B It is moving with constant speed
C It is not accelerating
D Even number of forces are acting

5 A 72 dyne force is inclined at 60 degrees to the horizontal. Find the acceleration of a 9g mass moving horizontally.

A 5 cm/s^2
B 4 cm/s^2
C 8 cm/s^2
D 3 cm/s^2

6 A man of mass 60 kg stands on a conveyor belt accelerating at 1 m/s^2. If g = 10 m/s^2, what is the net force on the man?

A 60 N
B 120 N
C 600 N
D 0 N

7 A ball of mass m moving with velocity v is stopped by a player. What is the impulse applied?

A -mv
B +mv
C 0
D -2mv

8 A body of mass 5 kg is acted upon by perpendicular forces 8 N and 6 N. What is the magnitude of acceleration?

A 3 m/s^2
B 2 m/s^2
C 5 m/s^2
D 1 m/s^2

9 A bullet of mass 0.1 kg is fired from a 50 kg gun at 100 m/s. What is the recoil velocity of the gun?

A 0.05 m/s
B 0.5 m/s
C 0.1 m/s
D 0.2 m/s

10 A force of 50 N acts on a 3 kg body, changing its speed from 2 m/s to 3.5 m/s in 2s. This is a constant force in the direction of motion. What is the magnitude?

A 0.18 N
B 0.32 N
C 0.64 N
D 2.25 N

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