Foundations of Physics-I (MCQ)

What is the unit of momentum?

• kgm/s

• Ns

• J

• m/s

What is the term for the resistance of an object to changes in its motion?

• Inertia

• Force

• Momentum

• Energy

Two objects, A,B have masses 2,4 kg respectively. If they move with same velocity, what is the ratio of their momenta?

• 1:1

• 2:1

• 1:2

• 4:1

Which of the following is an example of inertial frame of reference?

• A car accelerating on the highway

• A rotating merry-go-round

• A plane flying at constant altitude and velocity

• A roller coaster

Which one is true regarding the momentum of an isolated system when no external forces act upon it?

• Increases

• Decreases

• Remains constant

• Becomes zero

What is the impulse-momentum theorem also known as?

• Newton's second law

• Law of Conservation of momentum

• Law of inertia

• Law of impulse

A ball is thrown upward with an initial velocity 20 m/s. What happens to its momentum upon reaching its maximum height?

• Increases

• Decreases

• Remains constant

• Becomes zero

A person is standing in an elevator moving upward with constant velocity. From the person's perspective, which is true?

• They are in an inertial frame

• They are in a non-inertial frame

• They are in a gravitational frame

• They are in a rotational frame

What is the difference between mass and weight?

• Mass is constant, weight varies

• Weight is constant, mass varies

• Mass and weight are interchangeable

• Mass and weight are always constant

Newton's second law relates force, mass and.....

• Momentum

• Acceleration

• Velocity

• Energy