Energy Review

What is Energy?

• The ability to do anything

• The ability to cause change

• The investigation of nature

• A fact of life

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What is an example of kinetic energy?

• A bird sitting in a tree

• A bouncy ball on the table

• A car driving on the highway

• A book on shelf

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What is an example of potential energy?

• A bowling ball rolling down a lane

• A car parked in a lot

• An apple falling from a tree

• Sunlight heating up the atmosphere

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Energy cannot be created or destroyed.

• True

• False

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Total energy will always change in a system of objects.

• True; energy is destroyed due to friction

• False; energy cannot be destroyed, only transferred.

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What is an example of sound energy?

• A thermometer heating up

• Solar panels generating electricity

• A guitar string being plucked

• A machine in an assembly line

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What is nuclear energy?

• Energy in the nucleus of an atom

• Energy in the particles of an object

• Energy that is carried by electromagnetic waves

• Energy in a system of objects

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Which of the following show a change from kinetic energy to potential energy?

• A sled sliding up a hill

• A ball that is thrown into the air

• A car driving down a hill

• A rubber band being stretched

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Which of the following describes an energy transformation?

• When energy is lost due to friction

• An electric motor moving a car

• A solar panel powering a home

• A television projecting a show

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What transformation occurs in a toaster?

• Electrical to radiant

• Electrical to thermal

• Thermal to mechanical

• Solar to electrical

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