Newton's Third Law of Motion

Front

What is Newton's Third Law of Motion?

Back

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

Front

If you apply MORE force to the ground, what happens to the ground pushing on you?

Back

The force increases.

Front

What is the reaction force when a swimmer pushes on the water?

Back

The water pushes on the hand and the swimmer moves forward.

Front

What is the reaction force to a foot pushing down on the floor?

Back

The floor pushes back against the foot.

Front

If a gymnast decreases the force they exert on the trampoline, what will happen?

Back

The gymnast will be pushed back by the trampoline with less force and not go as high into the air.

Front

What happens to an arrow when Katniss Everdeen applies 20 N of force back on her bow and lets go?

Back

The arrow goes forwards with 20 N.

Front

Define 'action force' in the context of Newton's Third Law.

Back

An action force is the initial force exerted by one object on another.

Front

Define 'reaction force' in the context of Newton's Third Law.

Back

A reaction force is the force exerted by the second object back on the first object.

Front

Give an example of Newton's Third Law in everyday life.

Back

When you jump off a small boat, you push down on the boat (action), and the boat pushes you up into the air (reaction).

Front

What happens to the forces when two objects interact according to Newton's Third Law?

Back

The forces are equal in size but opposite in direction.