7.1.2 Newton's 3rd Law

Newton's 3rd law is:

• Every action has an action

• Every action has an equal and opposite reaction

• F=ma

• Every action has 2 reactions

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When we turn the knob on a sink faucet what factors are involved to make it so only the faucet turns but we don't turn at the same time?

• gravity, friction, weight

• gravity, friction, mass

• gravity, friction

• mass, gravity

to strike or hit something with any amount of force

• force

• collision

• newton

• lift

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Forces always come in ___.

• waves

• pairs

• triplets

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When you step on a roach, the roach applies an equal and opposite force on your foot.

• True

• False

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When a heavy football player and a light one run into each other, who exerts more force?

• The light one

• The heavy one

• Their forces are equal

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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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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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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

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Which picture shows the forces that Gene Cernan and the spacecraft put on each other?

• 
• 
• 
• 

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