Third Law of Motion

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

Newton realized that forces always come in pairs. These pairs of forces are equal to each other in sizebut opposite in direction. He called the forces "action and reaction".

Action (one direction) = Reaction (opposite direction)

Click on the picture below to see Newton's Third Law of Motion in Slow Motion


Now it's your turn.

Click on this link to determine the number of balls that are raised

Have fun!!!!

Here are some more examples.

Check your understanding:

Identify the action-reaction pair of forces.

1. A book resting on a table.

2.  A person swimming.    

Follow the links to learn more about Newton's Third Law of Motion.


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