Newton's Third Law: Action/Reaction Forces

Front

What is Newton's Third Law of Motion?

Back

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

Front

Define action and reaction forces.

Back

Action and reaction forces are pairs of forces that are equal in magnitude and opposite in direction, acting on two different objects.

Front

Can action and reaction forces cancel each other out?

Back

No, action and reaction forces act on different objects and cannot cancel each other out.

Front

What happens when a hammer strikes a nail?

Back

The hammer exerts a force on the nail (action), and the nail exerts an equal and opposite force back on the hammer (reaction).

Front

Explain the concept of equilibrium in relation to action/reaction forces.

Back

Equilibrium occurs when the net force acting on an object is zero, but action/reaction force pairs do not cause equilibrium as they act on different objects.

Front

What is the reaction force when a person pushes against a wall?

Back

The wall pushes back against the person with an equal and opposite force.

Front

Describe the action and reaction forces involved when a rocket launches.

Back

Action: Rocket engines push down on the ground. Reaction: The ground pushes the rocket upward.

Front

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

Back

The water pushes the swimmer forward.

Front

How do action and reaction forces relate to motion?

Back

They are responsible for the changes in motion of objects, as they create the forces needed for acceleration.

Front

What is an example of action and reaction forces in everyday life?

Back

Walking: When you push your foot backward against the ground (action), the ground pushes you forward (reaction).