5P14 Predict Motion: Newton's 3rd Law Action & Reaction

Newton’s law states that for every action, there is an ________ reaction.

• unequal and opposite

• equal and similar

• stronger and opposite

• equal and opposite

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NGSS.MS-PS2-1

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

• The cannon moving forward

• The cannon moving backwards

• The cannonball moving backwards

• The cannonball moving forward

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NGSS.MS-PS2-1

How is this an example of Newton’s Third law?

• Only the ball is using the head

• They are both exerting an equal force on each other

• Only the head is pushing the ball

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NGSS.MS-PS2-1

When the person pushes the ground with their foot, the equal and opposite reaction force is

• the ground pushing back on their foot

• when they start to move forward

Tags

NGSS.HS-PS2-1

Force always come in________

• waves

• triplets

• pairs

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NGSS.MS-PS2-1

If the person is pushing backwards with the paddle, why do they move forward?

• The person will actually move backwards, they need to paddle the other way

• The water pushes back with an equal and opposite force

• The person is pushing harder than the water

• The water pushes back with a greater force than the person

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NGSS.MS-PS2-1

If a person pushes down on a trampoline, why do they move back up into the air?

• The trampoline pushes back with a greater force than the person

• The trampoline pushes back with less force than the person

• The trampoline pushes back with an equal and opposite force as the person

Tags

NGSS.MS-PS2-1

How is this an example of Newton's 3rd Law?

• Only his head is pushing on the ball

• Only the ball is pushing on his head

• Both the ball and the head are exerting equal force on each other

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NGSS.MS-PS2-1

When the person pushes on the wall, and the wall pushes back, why does the person move and not the wall?

• The wall has more mass

• The person is pushing harder than the wall

• The wall is pushing harder than the person

• The skateboard is pushing on the person

Tags

NGSS.MS-PS2-1

When a person pushes against the ground with their foot, the equal and opposite reaction force is

• when they start to move forward

• the ground pushing back on their foot

Tags

NGSS.MS-PS2-1