Newton's Third Law

Newton's Third Law States...

• Objects in motion stay in motion and objects at rest stay at rest
• Force is equal to mass times acceleration
• For each action there is an equal and opposite reaction

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An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...

• Air resistance against the bow
• the arrow's push against the bowstring
• the grip of the archer's hand on the bow

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A player throws a ball. The action force is the player impact on the ball. The reaction force is...

• The force of the ball impact on the player
• The force of the grip of the ball
• The celebration the player is thinking of

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A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?

• 15,000 N
• 1,000 N
• 10, 000 N

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What is the reaction force to a foot pushing down on the floor?

• The foot going through the floor
• The floor pushing back against the foot
• The floor breaking to the foot

According to Newton's Third law the strength or magnitude of forces will be...

• smaller
• equal
• larger

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According to Newton's third law forces come in pairs?

• True
• False

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What happens when two objects, such as a baseball and a bat, collide?

• They hit each other with the same force in the same direction.

• They hit each other with the same force in opposite directions.

• They hit each other with unequal force in opposite directions.

• One remains still while the other one moves in the same direction.

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Which law explains how rockets are launched into space?

• Newton's First Law of Motion
• Newton's Second Law of Motion
• Newton's Third Law of Motion
• Newton's Fourth Law of Motion

By pushing backwards a roller skater moves forward. This is an example of Newton's

• First Law

• Second Law

• Third Law

• Law of Gravity

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