Law of Motion

Who was the scientist who gave us the Laws of Motion?

• Sir Isaac Newton

• Albert Einstein

• Galileo Galilei

• Aristotle

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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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Newton's _____ Law of Motion means that for every force there is a reaction force that is equal in size, but opposite in direction.

• First

• Second

• Third

• Fourth

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For every action there is an equal and opposite re-action.

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Newton's Third Law of Motion

• Newton's Fourth Law of Motion

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What does this graph represent?

• Constant Speed

• Acceleration

• Deacceleration

• Not moving

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Total distance divided by total time, for an object shows:

• acceleration

• the size of one's toupee

• absolute speed

• average speed

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Which best explains why we are able to accelerate forward when starting to run?

• As one leg moves backward, it provides an equal and opposite force for the other foot to move forward.

• No acceleration takes place. Runners are always at a fixed velocity.

• The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.

• The runner's upper body quickly leans forward, causing the entire body to begin accelerating forward

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When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.

• True

• False

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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 baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...

• Less than 1, 000 N

• 1,000 N

• More than 1,000 N

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