Quiz for Newton’s laws

Q1: Which law of motion is also known as the law of inertia?

A. First Law B. Second Law C. Third Law D. Law of Gravitation

Q2: Which law explains the recoil of a gun?

A. First Law B. Second Law C. Third Law D. Law of conservation of energy

Q3: Force is equal to mass multiplied by acceleration. This is:

A. Newton’s First Law B. Newton’s Second Law C. Newton’s Third Law D. None

Q4: A passenger standing in a moving bus falls backward when the bus starts suddenly. This is due to:

A. Inertia of rest B. Inertia of motion C. Inertia of direction D. Equilibrium

Q5: A man jumps out of a boat on the shore. The boat moves backward. This is an example of:

A. Newton’s First Law B. Newton’s Second Law C. Newton’s Third Law D. Inertia

Q6: When no external force acts on a body, its momentum:

A. Becomes zero B. Increases C. Is conserved D. Decreases

Q7: Which physical quantity is the measure of inertia?

A. Mass B. Velocity C. Acceleration D. Force

Q8: Which law explains the lift of a helicopter?

A. Newton’s First Law B. Newton’s Second Law C. Newton’s Third Law D. Law of Gravitation

Q9: A body moves with constant velocity. The net force on the body is:

A. Zero B. Maximum C. Infinite D. Equal to its mass

Q10: Acceleration is produced when:

A. No force is applied B. Force and mass are constant C. Force acts on a mass D. Speed is uniform

Q11: A rocket works on the principle of:

A. Conservation of energy B. Conservation of angular momentum C. Newton’s third law D. Bernoulli’s theorem

Q12: Which law relates force, mass, and acceleration?

A. Newton’s First Law B. Newton’s Second Law C. Newton’s Third Law D. Hooke’s Law

Q13: What is the direction of the reaction force when a ball hits the ground?

A. Backward B. Upward C. Downward D. Forward

Q14: A person getting off a moving bus falls forward due to:

A. Inertia of rest B. Inertia of motion C. Inertia of direction D. Friction

Q15: In absence of external force, momentum:

A. Is zero B. Is conserved C. Increases D. Decreases

Q16: Which law is involved when a hammer strikes a nail and the nail moves in?

A. First Law B. Second Law C. Third Law D. Law of energy conservation

Q17: Which force acts between tires and road to make a car move?

A. Normal force B. Friction C. Centripetal force D. Gravitational force

Q18: In Newton’s first law, motion continues unless:

A. An internal force acts B. Energy is supplied C. An external force acts D. Mass increases

Q19: The SI unit of momentum is:

A. Kg B. m/s C. Kg m/s D. Newton