Understanding Newton's Third Law of Motion

What is often referred to as the Law of action and reaction?

• Newton's first law of motion

• The law of gravity

• Newton's third law of motion

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According to Newton's third law of motion, for every action, there is:

• An equal and opposite reaction

• A slightly weaker reaction

• A reaction only in a vacuum

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What must object one do to make object two move?

• Apply less force than object two

• Apply enough force to overcome object two's resistance

• Apply the same amount of force as object two

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What is expelled downwards to propel rockets into space?

• Water

• Air

• Gas

When Joan jumps into the air, what is the action that causes her to move upward?

• The sun's energy

• Gravity pulling her down

• Her feet sending force or momentum down

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What happens if you push the water with more effort while swimming?

• You will move slower

• You will propel faster and further

• You will stay in place

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What demonstrates Newton's third law of motion in the swimming pool example?

• The depth of the pool

• The force exerted against the water

• The color of the water

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A book pushes down on a table with a force of 5N, the table..

• Pushes back with a force of 5N

• Pushes back with a force less than 5N

• Does nothing. A table has no force.

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A softball bat hits a softball with a force of 100 Newtons. What is the force and direction exerted by the ball on the bat?

• 100 Newtons, same direction

• 100 Newtons, opposite direction

• 200 Newtons, same direction

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Newton's 3rd Law of Motion states: that for every ​ (a)   in nature there is an equal​ and ​ (b)   reaction. If object A exerts a ​ (c)   on object B, object B also ​ (d)   an equal and opposite force on object A

• action
• opposite
• force
• exerts

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