Segment 1 Scope 1 - Newton's 3rd Law of Motion

This is always equal and opposite to the action force.

• Motion

• Reaction force

• Newton's 3rd Law of Motion

• Force

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NGSS.MS-PS2-1

To strike or hit something with great force.

• Motion

• Force

• Collide

• Reaction

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NGSS.MS-PS2-1

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A change in position of an object

• Motion

• Force

• Newton's 3rd Law of Motion

• Reaction

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NGSS.MS-PS2-2

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

• Reaction

• Force

• Collide

• Newton's 3rd Law of Motion

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NGSS.MS-PS2-1

A push or pull that changes an objects motion

• Motion

• Force

• Reaction

• Collide

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NGSS.MS-PS2-1

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When you are sitting in a chair, your body exerts a ​ (a)   on the chair and the chair exerts the ​ (b)   force back.

• force
• same
• push
• different
• interacting objects

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NGSS.MS-PS2-1

For every ​ (a)   there is an equal and opposite reaction between ​ (b)  

• Action
• interacting objects
• Friction
• Newton
• Mass

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NGSS.MS-PS2-1

Unit of measurement of force

• Newton

• Force

• Action

• Mass

Give three examples of Newton’s third law you see during a typical day at school.

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NGSS.MS-PS2-1

Engineers have to think about safety in the cars they design. Describe how a vehicle restraint, such as a seat belt, shows Newton’s third law of action, which is reaction, when it helps keep you safe in a car crash.

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NGSS.MS-PS2-1