Newton's Laws and Balanced Forces Review

Which law best describes the motion? You run into your friend while skating, and both of you fall in opposite directions.

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Which law best describes the motion? You are riding you bike and hit a pothole, the bike stops but you keep moving

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Which law best describes the motion? Which law says that heavier objects require more force than lighter objects to move or accelerate them?

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Which law best describes the motion?

A picture is hanging on the wall

and it does not move.

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A ball has mass of 10 kg and you want it to move at an acceleration of 2 m/s². What force is needed to make this happen?

• 5 N

• 8 N

• 12 N

• 20 N

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A car has a mass of 1,000 kg. The car is moving at an acceleration of 3 m/s². What force is needed?

• 30 N

• 33.3 N

• 300 N

• 3,000 N

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Why is it important to wear a seatbelt? Which of Newton’s Laws explains the motion that a passenger will undergo when a car stops?

• 1st Law, you will fly forward

• 2nd Law, you will stop

• 3rd Law, you will fly forward

A person jumps off a canoe onto a dock during a canoe trip. What happens to the canoe and which law applies?

• 1st Law, the canoe goes toward the dock.

• 2nd Law, the canoe goes away from the dock.

• 3rd Law, the canoe goes away from the dock.

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An object in motion will stay in motion and an object at rest will stay at rest, unless acted upon by an outside force. This law is also known as the law of inertia.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

For every action force, there is an equal and opposite reaction force.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

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