Force and Laws of Motion Quiz

1. A force can change the:

Shape only
Size only
State of motion or shape
Color only

2. SI unit of force is:

Joule
Pascal
Newton
Watt

3. Newton’s First Law is also known as:

Law of Momentum
Law of Inertia
Law of Acceleration
Law of Gravitation

4. Inertia is the tendency of a body to:

Change its state
Remain in its state
Move faster
Stop instantly

5. The second law of motion is given by:

F = ma
F = m/a
F = a/m
F = m + a

6. Momentum is defined as:

Mass × velocity
Mass / velocity
Velocity / mass
Force × time

7. SI unit of momentum is:

kg m/s
Newton
Joule
Pascal

8. Newton’s Third Law states:

F = ma
Every action has equal and opposite reaction
Bodies remain at rest
Energy is conserved

9. Balanced forces:

Change motion
Do not change motion
Always increase speed
Always decrease speed

10. Unbalanced forces:

Do nothing
Change state of motion
Keep object at rest
Always zero

11. If mass increases, acceleration will:

Increase
Decrease
Remain same
Become zero

12. Impulse is defined as:

Force × time
Force / time
Mass × velocity
Time / force

13. SI unit of impulse is:

Newton
N·s
Joule
Watt

14. A body moving with constant velocity has:

Zero acceleration
Maximum acceleration
Infinite acceleration
No mass

15. The unit of mass is:

kg
m
s
N

16. A cricket player pulls his hands backward while catching to:

Increase force
Decrease force
Increase speed
Stop time

17. When a bus suddenly stops, passengers move forward due to:

Friction
Inertia
Gravity
Pressure

18. Rocket propulsion works on:

First law
Second law
Third law
Law of gravity

19. The change in momentum is equal to:

Force
Impulse
Mass
Speed

20. If no external force acts on a body, it will:

Stop
Change direction
Continue in same state
Accelerate