Laws of Motion in Physics Objective MCQ - Easy Questions Quiz 1

1. Newton's first law of motion is also known as the law of:

Acceleration
Inertia
Action and Reaction
Momentum

2. The unit of force in the SI system is:

Newton
Joule
Kilogram
Pascal

3. Which of the following is an example of Newton's third law of motion?

A book resting on a table
A rocket launch
A ball rolling down a hill
A car accelerating

4. The momentum of an object is the product of its:

Mass and Velocity
Mass and Acceleration
Force and Time
Force and Distance

5. The rate of change of momentum of an object is equal to the:

Mass of the object
Velocity of the object
Force acting on the object
Displacement of the object

6. If no external force acts on a system of particles, then the total momentum of the system:

Remains constant
Becomes zero
Increases
Decreases

7. The second law of motion gives the measure of:

Energy
Momentum
Inertia
Force

8. The action and reaction forces referred to in Newton's third law:

Act on the same body
Act on different bodies
Are equal in magnitude but opposite in direction
Both b and c

9. A body of mass m moving with velocity v strikes a wall and comes to rest. The change in momentum is:

mv
-mv
2mv
-2mv

10. Which of the following statements is true about inertial frames of reference?

They are accelerating
They are in uniform motion
They are at rest
Both b and c

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