7th Physics - Part 1

What is energy?

• Everything that is falling

• Anything being pushed

• How things change or move

• Electricity

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As an object falls, what happens to its gravitational energy (GE)?

• Increases

• Decreases

• Stays the same

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As an object falls, what happens to its kinetic energy (KE)?

• Increases

• Decreases

• Stays the same

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At which point on the roller coaster will the car have the greatest amount of kinetic energy?

• A

• B

• C

• D

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Why does the rollercoaster have the most KE at position B?

• The rollercoaster is at its maximum speed.

• The rollercoaster is at its maximum height.

• The rollercoaster is moving.

• The rollercoaster is on a hill.

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At which point on the roller coaster will the car have the greatest amount of gravitational energy?

• A

• B

• C

• D

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Why does the rollercoaster have the most GE at position A?

• The rollercoaster is at its maximum speed.

• The rollercoaster is at its maximum height.

• The rollercoaster is moving.

• The rollercoaster is on a hill.

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What energy type(s) is present at point D?

• GE

• KE

• GE and KE

• None

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Why does the rollercoaster at point D have both KE and GE?

• The coaster is off the ground, so it has height.

• The coaster is moving.

• The coaster has an engine.

• The coaster has height and is moving.

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