Dynamics and Momentum in Classical Mechanics Quiz

Test your knowledge on Newton's laws, momentum, collisions, and conservation principles with these classical mechanics questions.

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Which of the following equations represents Newton's second law of motion?

F = ma

F = mv

F = m/a

F = v/a

What is the momentum of an object with a mass of 5 kg and a velocity of 10 m/s?

5 kg m/s

10 kg m/s

15 kg m/s

50 kg m/s

Which of the following quantities is a vector?

Speed

Velocity

Mass

Temperature

What is the momentum of a stationary object?

Zero

Infinity

Depends on the mass

Depends on the velocity

What is the unit of impulse?

kg m/s

Joule

Newton

Newton-second (Ns)

A 500 g object is moving with a velocity of 10 m/s. What is its momentum?

50 kg m/s

5 kg m/s

5000 kg m/s

0.5 kg m/s

Which of the following statements is true regarding the conservation of momentum?

Momentum is conserved only in elastic collisions.

Momentum is conserved only in inelastic collisions.

Momentum is conserved in both elastic and inelastic collisions.

Momentum is not conserved in any type of collision.

A force of 20 N is applied to an object with a mass of 4 kg. What is the resulting acceleration of the object?

5 m/s^2

8 m/s^2

16 m/s^2

80 m/s^2

What is the impulse experienced by an object when a force of 50 N is applied for 2 seconds?

25 Ns

50 Ns

100 Ns

200 Ns

#10

Which of the following is NOT a unit of momentum?

kg m/s

Joule

N m/s

#11

Which of the following equations represents impulse-momentum theorem?

F = ma

F = Δp/Δt

F = mΔv

F = mv

#12

What happens to the momentum of a system if the net external force acting on it is zero?

Momentum increases

Momentum decreases

Momentum remains constant

Momentum becomes negative

#13

In a closed system, two objects collide. If one object experiences a force of 10 N due to the collision, what is the force experienced by the other object?

It cannot be determined without additional information.

10 N

20 N

5 N

#14

What is the change in momentum of an object if it experiences an impulse of 100 Ns?

Depends on the mass of the object

100 Ns

200 Ns

It cannot be determined without additional information.

#15

Which of the following statements correctly describes an elastic collision?

Kinetic energy is not conserved.

Momentum is not conserved.

Total mechanical energy is conserved.

Objects stick together after collision.

#16

Which of the following statements about momentum is true?

Momentum is a vector quantity.

Momentum is always conserved, regardless of external forces.

Momentum depends on the frame of reference.

Momentum can only be transferred through elastic collisions.

#17

Which of the following statements about elastic collisions is true?