1. Newton’s First Law is also known as the law of:
(A) Force
(B) Momentum
(C) Inertia
(D) Acceleration
2. Newton’s Second Law relates force to:
(A) Mass × Acceleration
(B) Weight × Time
(C) Energy ÷ Distance
(D) Speed × Volume
3. Newton’s Third Law states that:
(A) Force equals mass × velocity
(B) For every action there is an equal and opposite reaction
(C) Objects remain at rest until acted upon
(D) Acceleration depends on velocity
4. Which law explains why seatbelts are necessary in cars?
(A) First Law
(B) Second Law
(C) Third Law
(D) Law of gravitation
5. The equation F = ma represents which law?
(A) Newton’s First Law
(B) Newton’s Second Law
(C) Newton’s Third Law
(D) Law of inertia
6. A rocket launching is best explained by:
(A) Newton’s First Law
(B) Newton’s Second Law
(C) Newton’s Third Law
(D) Universal gravitation
7. Which law describes why a moving football eventually stops?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
8. The force required to move a heavy box depends on:
(A) Its weight only
(B) Its mass and acceleration
(C) Its volume
(D) Its temperature
9. Action-reaction forces:
(A) Act on the same object
(B) Act on different objects
(C) Cancel each other
(D) Never exist
10. Inertia depends on:
(A) Force
(B) Mass
(C) Acceleration
(D) Velocity
11. A ball rolling on the ground stops due to:
(A) Newton’s Second Law
(B) Newton’s Third Law
(C) External force of friction
(D) Inertia only
12. A heavier body has greater:
(A) Inertia
(B) Acceleration
(C) Velocity
(D) Pressure
13. Kicking a football harder makes it move faster. This demonstrates:
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
14. Jumping off a boat pushes the boat backward. This is an example of:
(A) Inertia
(B) Newton’s Second Law
(C) Newton’s Third Law
(D) Force of gravity
15. A person in a moving bus falls forward when brakes are applied suddenly due to:
(A) Inertia of rest
(B) Inertia of motion
(C) Reaction force
(D) Centripetal force
16. Newton’s laws are applicable to:
(A) Stationary bodies only
(B) Moving bodies only
(C) Both stationary and moving bodies
(D) Subatomic particles only
17. When a bat hits a ball, the ball exerts:
(A) No force
(B) Equal and opposite force on the bat
(C) More force on the bat
(D) Less force on the bat
18. Force is measured in:
(A) Joules
(B) Newtons
(C) Watts
(D) Pascals
19. Newton’s First Law implies that velocity remains constant unless:
(A) Force acts on the body
(B) Time changes
(C) Pressure increases
(D) Distance decreases
20. A balloon moves forward when air rushes out backward. This illustrates:
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
21. Mass is a measure of:
(A) Energy
(B) Inertia
(C) Weight
(D) Pressure
22. The unit of acceleration is:
(A) m/s
(B) m/s²
(C) N
(D) J
23. If force doubles and mass remains constant, acceleration becomes:
(A) Halved
(B) Same
(C) Doubled
(D) Zero
24. Weight is the force due to:
(A) Inertia
(B) Gravity
(C) Friction
(D) Pressure
25. Which Newton’s law explains recoil of a gun?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
26. A body at rest tends to remain at rest is part of:
(A) First Law
(B) Second Law
(C) Third Law
(D) Hooke’s law
27. Which factor resists changes in motion of an object?
(A) Acceleration
(B) Inertia
(C) Gravity
(D) Energy
28. The direction of reaction force is:
(A) Same as action
(B) Opposite to action
(C) Perpendicular to action
(D) Zero
29. Newton’s Second Law can be expressed as:
(A) a = F/m
(B) a = m/F
(C) F = v/t
(D) F = mv
30. The SI unit of force is named after:
(A) Galileo
(B) Newton
(C) Pascal
(D) Joule
31. Which law explains the motion of planets?
(A) Newton’s First Law
(B) Newton’s Second Law
(C) Newton’s Third Law
(D) Law of gravitation
32. A moving car stops when brakes are applied due to:
(A) Gravity
(B) Friction
(C) Inertia of rest
(D) Inertia of motion
33. Which Newton’s law deals with the concept of momentum change?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
34. A stone tied to a string moving in a circle is pulled outward due to:
(A) Centrifugal effect
(B) Gravity
(C) Momentum
(D) Elastic force
35. The tendency of passengers to lean outward while a bus turns is due to:
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravity
36. A force applied on a body produces:
(A) Rest only
(B) Motion only
(C) Change in motion or shape
(D) No effect
37. A hammer driving a nail shows which law?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
38. Acceleration produced by a force depends on:
(A) Mass of the object
(B) Temperature
(C) Volume
(D) Density only
39. The more massive a body, the more it resists acceleration. This describes:
(A) Gravity
(B) Inertia
(C) Force
(D) Momentum
40. A ball dropped from a height falls due to:
(A) Inertia
(B) Gravity
(C) Friction
(D) Reaction force
41. The reaction force when you step on the ground is exerted by:
(A) Your foot
(B) The ground
(C) Air
(D) Gravity
42. A cyclist turns a corner but tends to lean inward due to:
(A) Centripetal force requirement
(B) Gravity
(C) Inertia of rest
(D) Reaction force
43. Newton’s First Law fails when:
(A) No force acts
(B) Gravity is absent
(C) Friction is zero
(D) External force acts
44. If mass increases but force is constant, acceleration will:
(A) Increase
(B) Decrease
(C) Remain constant
(D) Become infinite
45. Which Newton’s law explains the motion of a tug of war rope?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
46. A ball thrown upward comes down due to:
(A) Inertia
(B) Friction
(C) Gravitational force
(D) Reaction force
47. Which Newton’s law explains jet propulsion?
(A) First Law
(B) Second Law
(C) Third Law
(D) Gravitation law
48. Inertia of motion is demonstrated when:
(A) A moving body resists stopping
(B) A stationary body resists movement
(C) A rocket moves upward
(D) A nail is hammered
49. Newton’s laws are valid in:
(A) Inertial frames of reference
(B) Non-inertial frames only
(C) Rotating frames
(D) Imaginary frames
50. The sum of action and reaction forces is:
(A) Zero
(B) Infinite
(C) Equal to acceleration
(D) Mass × velocity