Quiz about Momentum Test Review

Question 1

When two objects collide and rebound without losing kinetic energy, what type of collision is this?

Accepted Answer

Elastic

Answer

Inelastic

Answer

Transverse

Answer

Unidirectional

Question 2

A 2.5 N force is applied to crate for 0.25 seconds, causing its velocity to increase by 1.5 m/s. What is the mass of the crate?

Accepted Answer

0.42 kg

Answer

0.22 kg

Answer

1.5 kg

Answer

5.0 kg

Question 3

A 3000 kg truck is moving at 2 m/s, while a 600 kg car is moving at 10 m/s. Which one has more momentum?

Accepted Answer

Both have the same momentum

Answer

The 3000 kg truck

Answer

The 600 kg car

Answer

It depends on the velocity

Question 4

Momentum can be considered as _______ in motion.

Accepted Answer

mass

Answer

inertia

Answer

force

Answer

velocity

Question 5

If the mass of a moving object is quadrupled, which of the following will also quadruple?

Accepted Answer

momentum

Answer

impulse

Answer

acceleration

Answer

velocity

Question 6

Which has more momentum: a car moving at 30 m/s or a opossum moving at 10 m/s?

Accepted Answer

The car

Answer

The opossum

Answer

Both have the same momentum

Question 7

Momentum is a ______ quantity because it includes both magnitude and direction.

Accepted Answer

vector

Answer

scalar

Answer

non-directional

Answer

positive

Question 8

A 3 kg ball is moving at 15 m/s just before hitting a wall. It stops in 4 seconds. What is the force exerted by the wall?

Accepted Answer

-11.25 N

Answer

0 N

Answer

-9 N

Answer

11.25 N

Question 9

A bug collides with the windshield of a moving car. Which experienced a greater impulse?

Accepted Answer

Both experienced the same impulse

Answer

The car

Answer

The bug

Answer

It depends on the velocity of the car

Question 10

In an elastic collision, what is conserved?

Accepted Answer

Momentum

Accepted Answer

Kinetic Energy

Answer

Neither

Question 11

In an inelastic collision, what is conserved?

Accepted Answer

Total momentum only

Answer

Total kinetic energy only

Answer

Both total momentum and kinetic energy

Answer

Neither total momentum nor kinetic energy

Question 12

A 2500 kg car is moving at 4 m/s when it collides with a stationary 2500 kg car. The two cars stick together. What is their final speed?

Accepted Answer

2 m/s

Answer

4 m/s

Answer

1 m/s

Answer

8 m/s

Question 13

Which of the following statements is true about impulse?

Accepted Answer

It is the product of time and force during an impact

Accepted Answer

It equals the change in momentum

Answer

It equals the recoil force

Answer

It equals the velocity over time

Question 14

Maria is a forward on her soccer team. During a game, she collides with the opposing team's 75-kg forward, David. Before the collision, David was running at 5.0 m/s eastward. After the collision, David is running westward at -2.0 m/s. What impulse did Maria deliver to David during the collision?

Accepted Answer

-525 Ns

Answer

-225 Ns

Answer

75 Ns

Answer

300 Ns

Question 15

According to the law of conservation of momentum, what is true?

Accepted Answer

Total initial momentum equals total final momentum

Answer

Total initial momentum is greater than the final momentum

Answer

Total momentum of all objects is zero

Answer

Total momentum is always zero in closed systems

Question 16

A 0.1 kg baseball at rest is hit with a bat and accelerates to 60 m/s. What is the impulse on the baseball?

Accepted Answer

6 Ns

Answer

0 Ns

Answer

12 Ns

Answer

60 Ns

Question 17

When a soccer ball is kicked, what type of collision occurs between the foot and the ball, and how do the forces compare?

Accepted Answer

Elastic, equal force on both

Answer

Inelastic, equal force on both

Answer

Elastic, greater force on the foot

Answer

Inelastic, greater force on the ball

Momentum Test Review

23 questions

When two objects collide and rebound without losing kinetic energy, what type of collision is this?

The surfer and his board is 45 kg. The surfer moves at -4 m/s. What is the his momentum?

An car experiences a change in momentum of 40 kg·m/s after coming to a stop in 0.2 seconds. What is the impulse?

A 0.4 kg ball has a momentum of 12 kg·m/s. What is the ball's velocity?

A 2.5 N force is applied to crate for 0.25 seconds, causing its velocity to increase by 1.5 m/s. What is the mass of the crate?

A 3000 kg truck is moving at 2 m/s, while a 600 kg car is moving at 10 m/s. Which one has more momentum?

Momentum can be considered as _______ in motion.

If the mass of a moving object is quadrupled, which of the following will also quadruple?

Which has more momentum: a car moving at 30 m/s or a opossum moving at 10 m/s?

Momentum is a ______ quantity because it includes both magnitude and direction.

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