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.

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NGSS.MS-PS2-1

Front

What is an action force?

Back

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

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NGSS.MS-PS2-2

Front

What is a reaction force?

Back

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

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NGSS.MS-PS2-1

Front

If an archer shoots an arrow, what is the action force?

Back

The bowstring pushing against the arrow.

Tags

NGSS.MS-PS2-1

Front

If an archer shoots an arrow, what is the reaction force?

Back

The arrow's push against the bowstring.

Tags

NGSS.MS-PS2-1

Front

What happens when a swimmer pushes on the water?

Back

The water pushes back on the swimmer's hand, propelling them forward.

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NGSS.MS-PS2-1

Front

What occurs if you apply more force to the ground?

Back

The ground pushes back with an increased force.

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NGSS.MS-PS2-1

Front

What is the reaction force when a foot pushes down on the floor?

Back

The floor pushes back against the foot.

Front

How does Newton's Third Law apply to walking?

Back

When you push down on the ground, the ground pushes you up, allowing you to walk.

Front

What is an example of action and reaction in a rocket launch?

Back

The rocket engines push down on the ground (action), and the ground pushes the rocket upward (reaction).

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NGSS.MS-PS2-1