Newton's third law

Front

What is Newton's third law of motion?

Back

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

Front

What do we measure force in?

Back

Newtons.

Front

When you push on a wall, what does the wall do?

Back

The wall pushes back on you.

Front

What is a force?

Back

A push or pull acted upon by an object.

Front

What is an example of an action force?

Back

A person pushing a shopping cart.

Front

What is an example of a reaction force?

Back

The shopping cart pushing back against the person.

Front

What happens to the forces when two objects interact?

Back

They exert equal and opposite forces on each other.

Front

What is the relationship between action and reaction forces?

Back

They are always equal in size and opposite in direction.

Front

What is the effect of a force on an object?

Back

It can change the object's motion.

Front

What is the unit of force?

Back

Newton (N).