Unit Review: Forces and Motion

All objects in the universe have a gravitational attraction to each other. 

• True
• False

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Both of these are measured in Newtons

• Force and acceleration
• Force and weight
• Mass and weight
• Mass and acceleration

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What type of force is shown in the picture above?

• Magnetic
• Gravitational
• Applied
• Normal

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What force ultimately slows the roller coaster to a stop?

• Applied
• Normal
• Friction
• Magnetic

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What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

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What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

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What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

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When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity?

• density

• diameter

• mass

• volume

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What keeps the Moon in orbit around Earth?

• Earth's rotation.
• Earth's atmosphere.
• Earth's gravity.
• Earth's shape.

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What two things does gravity depend on?

• Mass and weight

• Weight and distance

• Mass and force

• Mass and distance

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