Newton's Laws_Net Force

A nickname for Newton's 3rd Law of Motion might be...

• Action/Reaction

• F=m*a

• The law of inertia

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Which describes the 3rd Law of Motion?

• Flowing water

• A ball inside a box

• Bow and arrow

• Spinning top

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What is the action force in the picture? (Hint: the force that causes the motion.)

• The rocket moving upward.

• The gasses from the rockets pushing downward.

• The wind rushing upward past the shuttle wings.

• An amazing feat or sorcery and wizardry!

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What is a push or a pull upon an object which results from its interaction with another object?

• Magnetic Force

• Force

• Action and Reaction

• Momentum

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Who is the English physicist who described universal gravitation and the three laws of motion?

• Socrates

• Albert Einstein

• Issac Newton

• Thomas Edison

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When two objects are in contact, they exert forces in...

• Same direction

• Opposite direction

• Perpendicular direction

• Can be both A and B

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Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar
• Equal and opposite
• Equal and different
• Greater and opposite

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A bowling ball strikes a pin. Which one accelerates more?

• The bowling ball because it is more massive

• The pin because it is more massive

• The pin because it is less massive

• They accelerate the same

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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 cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?

• The cannon moving forward
• The cannonball moving forward
• The cannon moving backward
• The cannonball moving backward

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