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Quiz on action and reaction

This is a timed quiz. You will be given 15 seconds per question. Are you ready?

15

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If two ice skaters push off each other on a frictionless surface, what happens to their velocities after the push?

Both skaters stop moving

The skaters move with the same speed in opposite directions

One skater moves faster than the other

Both skaters move in the same direction

Correct! Wrong!

What happens to the force of reaction when the action force increases?

It decreases

It increases

It stays the same

It becomes irrelevant

Correct! Wrong!

If a rocket is launched, the action force is the expulsion of gases. What is the reaction force?

The air moves downward

The rocket's engine heats up

The rocket moves upward

The gases exert a force back on the rocket

Correct! Wrong!

When you sit in a chair, the action force is your weight pushing down on the chair. What is the reaction force?

The chair pushing up on you

The chair moving downward

Your body pushing upward

Gravity pulling you downward

Correct! Wrong!

According to Newton's third law, for every action there is an equal and opposite reaction. What does this mean?

The action and reaction forces act on different objects

The action and reaction forces always cancel each other out

The action and reaction forces act on the same object

The action force is always greater than the reaction force

Correct! Wrong!

If a person exerts a force of 10 N on a wall, what is the force that the wall exerts on the person?

5 N

0 N

10 N

20 N

Correct! Wrong!

When you push on a wall, the wall pushes back on you with an equal and opposite force. Which of the following describes this interaction?

Action and reaction forces act on the same object

The reaction force is always stronger than the action force

Action and reaction forces act on different objects

Action and reaction forces always cancel each other out

Correct! Wrong!

A person jumps off a boat, and the boat moves in the opposite direction. This is an example of:

Newton's second law

Law of conservation of momentum

Newton's third law

Newton's first law

Correct! Wrong!

Quiz on action and reaction

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