Question 1

Which of the following statements best describes momentum?

Accepted Answer

Momentum is the product of an object's mass and its velocity.

Answer

Momentum is always conserved in an isolated system.

Answer

Momentum is equal to force multiplied by time.

Answer

Momentum is a measure of an object's energy.

Question 2

If a 2 kg object is moving at a velocity of 3 m/s, what is its momentum?

Accepted Answer

6 kg·m/s

Answer

5 kg·m/s

Answer

3 kg·m/s

Answer

2 kg·m/s

Question 3

In a collision between two objects, what property of momentum is conserved?

Accepted Answer

Total momentum of the system is conserved

Answer

Mass is conserved

Answer

Kinetic energy is always conserved

Answer

Velocity of both objects is conserved

Question 4

Which of the following scenarios demonstrates the principle of conservation of momentum?

Accepted Answer

Two ice skaters push off each other and move in opposite directions.

Answer

A ball thrown vertically in the air.

Answer

A person jumping off a diving board.

Answer

A car accelerating down a hill.

Question 5

What happens to the momentum of an object if its velocity is doubled while its mass remains constant?

Accepted Answer

The momentum is also doubled.

Answer

The momentum becomes zero.

Answer

The momentum is halved.

Answer

The momentum remains the same.

Question 6

Which of the following best defines impulse?

Accepted Answer

Impulse is the change in momentum of an object.

Answer

Impulse is the mass of an object multiplied by its speed.

Answer

Impulse is the rate of change of velocity.

Answer

Impulse is the force applied over time.

Question 7

In a closed system, if one object collides elastically with another object, what is true about their total momentum?

Accepted Answer

Total momentum before the collision equals total momentum after the collision.

Answer

Total momentum is doubled after the collision.

Answer

Total momentum is lost during the collision.

Answer

Total momentum is independent of the masses involved.

Question 8

What is the unit of momentum in the International System of Units (SI)?

Accepted Answer

kg·m/s

Answer

Newton

Answer

Kilogram

Answer

Joule

Question 9

What is the formula for calculating momentum?

Accepted Answer

p = mv

Answer

p = mv^2

Answer

p = m + v

Answer

p = m/v

Question 10

Which of the following scenarios describes a change in momentum?

Accepted Answer

A car speeds up as it accelerates.

Answer

A bicycle coasts down a hill without pedaling.

Answer

A parked car remains stationary.

Answer

A ball rolls at a constant speed.

Question 11

In an elastic collision, what happens to the total momentum of the system?

Accepted Answer

It is conserved.

Answer

It increases.

Answer

It becomes zero.

Answer

It decreases.

Question 12

What does impulse measure in physics?

Accepted Answer

Change in momentum

Answer

Energy transferred

Answer

Force over time

Answer

Velocity of an object

Question 13

Which equation represents impulse?

Accepted Answer

I = FΔt

Answer

I = mgh

Answer

I = p/t

Answer

I = mv

Question 14

What is the unit of impulse in the International System of Units (SI)?

Accepted Answer

Newton-second (Ns)

Answer

Joule (J)

Answer

Watt (W)

Answer

Kilogram-meter (kg·m)

Question 15

Which of the following scenarios demonstrates the concept of impulse?

Accepted Answer

A baseball bat hitting a ball

Answer

A person walking

Answer

A car accelerating smoothly

Answer

A balloon deflating

Question 16

What is the relationship between impulse and momentum for an object?

Accepted Answer

Impulse equals the change in momentum

Answer

Impulse and momentum are unrelated

Answer

Impulse is half the momentum

Answer

Impulse is equal to mass times velocity

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