Newton's Third Law Review

Front

What does Newton's Third Law of Motion state?

Back

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

Front

What is meant by 'action-reaction pairs'?

Back

Forces that two objects exert on each other that are equal in magnitude and opposite in direction.

Front

If a swimmer pushes off a wall, what can be said about the forces involved?

Back

The swimmer's force on the wall is equal to the wall's force on the swimmer.

Front

In force pairs, how do the magnitudes of the forces compare?

Back

The forces are always equal in magnitude.

Front

What happens when a smart car collides with a large SUV?

Back

The SUV will exert a force of 600 N back on the smart car.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is an example of Newton's Third Law in everyday life?

Back

When you jump off a small boat, you push the boat backward as you move forward.

Front

What is the significance of 'equal and opposite' in Newton's Third Law?

Back

It means that forces always occur in pairs that are equal in strength but opposite in direction.

Front

How does Newton's Third Law apply to walking?

Back

When you push down on the ground, the ground pushes you up with an equal force.

Front

What is the relationship between action and reaction forces?

Back

They act on different objects and do not cancel each other out.