Question 1

If a person jumps off a small boat and the boat moves in the opposite direction, which principle from Newton's 3rd law is being demonstrated?

Accepted Answer

Action and reaction forces.

Answer

Mass and acceleration.

Answer

Inertia.

Answer

Energy conservation.

Question 2

What happens to a ball when you kick it, according to Newton's 3rd law of motion?

Accepted Answer

The ball exerts an equal and opposite force back on your foot.

Answer

Your foot moves effortlessly through the ball.

Answer

The ball absorbs all the force without reacting.

Answer

The ball stays still.

Question 3

When a bird flies by flapping its wings downward, what happens to the bird according to Newton's 3rd law of motion?

Accepted Answer

The bird is pushed upward.

Answer

The bird gets pushed backward.

Answer

The bird hovers in the air.

Answer

The bird falls to the ground.

Question 4

When you inflate a balloon and release it, what principle of Newton's 3rd law is illustrated?

Accepted Answer

The air rushing out causes the balloon to fly in the opposite direction.

Answer

The balloon flies directly upward.

Answer

The balloon stays still.

Answer

The balloon expands without moving.

Question 5

What happens when you push against a wall with your hands?

Accepted Answer

The wall pushes back with an equal force.

Answer

You move through the wall.

Answer

The wall collapses.

Answer

The wall does not react at all.

Question 6

Why does a rocket move upward when it expels gas downwards during launch?

Accepted Answer

The expulsion of gas generates an equal and opposite force that propels the rocket upward.

Answer

The gas creates a vacuum that pulls the rocket up.

Answer

The rocket is lighter than the expelled gas.

Answer

The rocket uses wings to lift off.

Question 7

What does Newton's 3rd law imply about walking?

Accepted Answer

As you push backward against the ground, the ground pushes you forward.

Answer

You float above the ground.

Answer

You are pulled by gravity alone.

Answer

The ground exerts no force when you walk.

Question 8

What does it mean when we say 'forces act in pairs' in relation to Newton's 3rd law?

Accepted Answer

It means that for every force exerted, there is an equal and opposite force reacting.

Answer

Forces can exist independently without affecting each other.

Answer

One force is always stronger than the other.

Answer

Forces can cancel each other out completely.

Question 9

When a swimmer pushes the water backward, what happens according to Newton's 3rd law of motion?

Accepted Answer

The swimmer moves forward.

Answer

The water pushes the swimmer downward.

Answer

The swimmer stays in place.

Answer

The water does not move.

Question 10

Which of the following statements best describes Newton's 3rd law of motion?

Accepted Answer

For every action, there is an equal and opposite reaction.

Answer

An object at rest will stay at rest unless acted upon by an unbalanced force.

Answer

Energy cannot be created or destroyed.

Answer

Force equals mass times acceleration.

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