1. Newton’s first law is also known as the law of:
(A) Acceleration
(B) Inertia
(C) Action-reaction
(D) Gravitation
2. Newton’s second law explains the relationship between:
(A) Force and mass
(B) Force, mass, and acceleration
(C) Action and reaction
(D) Inertia and momentum
3. According to Newton’s third law:
(A) Every force has an equal and opposite reaction
(B) Force equals mass times acceleration
(C) A body at rest remains at rest
(D) Energy is conserved in all actions
4. Which equation is derived from Newton’s second law?
(A) F = ma
(B) W = F × d
(C) P = W/t
(D) v = u + at
5. Which of the following is an example of Newton’s first law?
(A) A ball rolling until friction stops it
(B) Rocket propulsion
(C) Hitting a baseball
(D) Lifting a dumbbell
6. A sprinter pushing against the ground demonstrates:
(A) Newton’s first law
(B) Newton’s second law
(C) Newton’s third law
(D) Law of gravitation
7. The tendency of a stationary body to remain at rest is explained by:
(A) Law of force
(B) Law of inertia
(C) Law of gravitation
(D) Law of energy
8. Which of the following describes inertia?
(A) Resistance to acceleration
(B) Resistance to change in motion
(C) Resistance to force
(D) Resistance to energy transfer
9. When you push a wall and the wall pushes back, it demonstrates:
(A) Newton’s first law
(B) Newton’s second law
(C) Newton’s third law
(D) Newton’s gravitation law
10. A hockey puck sliding on ice continues to move due to:
(A) Force applied by stick
(B) Inertia
(C) Acceleration
(D) Momentum loss
11. Which of the following involves Newton’s second law?
(A) Kicking a ball harder makes it move faster
(B) A ladder leaning on a wall
(C) A satellite in orbit
(D) A book resting on a table
12. Force is measured in:
(A) Joules
(B) Newtons
(C) Watts
(D) Pascals
13. The acceleration of a body is inversely proportional to:
(A) Force
(B) Velocity
(C) Mass
(D) Displacement
14. Which law applies when a car suddenly stops and passengers lunge forward?
(A) First law
(B) Second law
(C) Third law
(D) Gravitation law
15. A rocket launches due to:
(A) Law of inertia
(B) Action-reaction principle
(C) Acceleration law
(D) Conservation of energy
16. Newton’s first law states that a body in motion will:
(A) Stop automatically
(B) Continue in motion unless acted upon by external force
(C) Move in circles
(D) Slow down gradually without reason
17. The net force on a body at equilibrium is:
(A) Equal to mass
(B) Equal to zero
(C) Greater than acceleration
(D) Opposite to momentum
18. Newton’s third law explains:
(A) Reaction forces
(B) Gravitational forces
(C) Elastic forces
(D) Only internal forces
19. Which is an everyday example of Newton’s third law?
(A) Walking
(B) Jumping
(C) Rowing a boat
(D) All of the above
20. Inertia depends on:
(A) Velocity
(B) Acceleration
(C) Mass
(D) Force
21. When force is doubled, acceleration becomes:
(A) Halved
(B) Doubled
(C) Tripled
(D) Constant
22. Newton’s laws are applicable to:
(A) Only Earth
(B) Only space
(C) Both Earth and space
(D) Fluids only
23. A ball falling under gravity is an example of:
(A) First law
(B) Second law
(C) Third law
(D) Conservation of momentum
24. A horse pulling a cart is explained by:
(A) Inertia
(B) Acceleration law
(C) Action-reaction law
(D) Gravitation
25. Which of the following is scalar, not vector?
(A) Force
(B) Acceleration
(C) Mass
(D) Momentum
26. An object continues at uniform velocity if:
(A) Net force = 0
(B) Net force = positive
(C) Net force = negative
(D) Net torque = 0
27. When a person jumps off a boat and the boat moves backward, it is:
(A) Inertia
(B) Acceleration
(C) Reaction force
(D) Conservation of mass
28. The slope of a Force vs. Acceleration graph gives:
(A) Velocity
(B) Mass
(C) Work
(D) Power
29. Momentum is defined as:
(A) Mass × Velocity
(B) Force × Distance
(C) Force × Time
(D) Acceleration × Distance
30. A passenger feels pushed outward in a turning bus due to:
(A) First law (inertia)
(B) Second law
(C) Third law
(D) Gravitation
31. Net force acting on a body equals:
(A) Change in displacement
(B) Rate of change of momentum
(C) Energy
(D) Velocity
32. Which law is most useful for calculating force in biomechanics?
(A) First law
(B) Second law
(C) Third law
(D) Hooke’s law
33. A swimmer pushes water backward to move forward due to:
(A) Law of inertia
(B) Law of acceleration
(C) Law of action-reaction
(D) Conservation of momentum
34. Which law governs why seatbelts are necessary in cars?
(A) First law
(B) Second law
(C) Third law
(D) Gravitation law
35. A ball dropped from a height accelerates due to:
(A) Inertia
(B) Momentum
(C) Gravitational force
(D) Friction
36. Newton’s third law pairs forces that are:
(A) Equal and opposite, same line of action
(B) Equal and opposite, different bodies
(C) Unequal but opposite, same body
(D) Perpendicular to each other
37. Impulse is related to which of Newton’s laws?
(A) First
(B) Second
(C) Third
(D) All of them
38. The law of inertia applies when net external force is:
(A) Maximum
(B) Minimum
(C) Zero
(D) Changing
39. Newton’s third law is directly related to:
(A) Conservation of momentum
(B) Conservation of energy
(C) Conservation of mass
(D) Conservation of work
40. A bullet fired from a gun causes recoil due to:
(A) First law
(B) Second law
(C) Third law
(D) Gravitation
41. Which force always resists motion?
(A) Inertia
(B) Friction
(C) Reaction force
(D) Centripetal force
42. The unit of momentum is:
(A) N·s
(B) J
(C) W
(D) m/s
43. A parachute slows descent by increasing:
(A) Momentum
(B) Acceleration
(C) Air resistance
(D) Inertia
44. Which of Newton’s laws explains why a soccer ball accelerates when kicked?
(A) First
(B) Second
(C) Third
(D) None
45. The ground reaction force while running is explained by:
(A) First law
(B) Second law
(C) Third law
(D) Gravitation
46. Newton’s laws are fundamental to:
(A) Biomechanics
(B) Engineering
(C) Physics
(D) All of the above
47. Which law explains why heavier objects require more force to move?
(A) First law
(B) Second law
(C) Third law
(D) Hooke’s law
48. An object thrown upward comes down due to:
(A) First law
(B) Second law
(C) Gravitational force
(D) Third law
49. Which statement is true about action-reaction forces?
(A) They act on the same body
(B) They act on different bodies
(C) They cancel each other always
(D) They never occur simultaneously
50. The field of biomechanics applies Newton’s laws to study:
(A) Motion of living organisms
(B) Space flight
(C) Atomic particles
(D) Geological processes