Action and Reaction Forces

Newton's 3rd Law of Motion states that:

for every _______ there is an equal but opposite __________.

• force / reaction

• action / reaction

• reaction / force

• movement / force

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Action and Reaction forces always come in what?

• different forces

• groups

• same forces

• pairs

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When a rocket fires the exhaust from the rocket moves ________.

• downward

• everywhere

• upward

• out

Tags

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The exhaust (expelling gas) is the ________ force.

• action force

• gravity force

• reaction force

• not a force at all

Tags

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When a rocket launches the action force is equal to the ________ force.

• normal force

• reaction force

• gravity

• action force

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The amount of force on each object of action and reaction force pairs is always _______.

• action larger and reaction smaller

• different

• action smaller and reaction larger

• equal

Tags

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If a boxer hits a punching bag with 50 N (pounds of force) then the punching bag will hit back with _____

• 10N

• 50N

• 5N

• 15N

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If a boxer hits a punching bag with 10 N (pounds of force) then the punching bag will hit back with ____

• 50N

• 5N

• it will not hit back

• 10N

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NGSS.MS-PS2-1

If a boxer hits a punching bag with 5N (pounds of force) the punching bag will hit back with ____

• 5N

• 15N

• 10N

• 50N

Tags

NGSS.MS-PS2-1

The forces of action and reaction are always ______

• depends on the objects

• vary in size

• different

• equal

Tags

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