Energy's Different Forms (p. 238-241)

What do chemicals, electricity, light, sound, and motion all have in common?

• They are all solids

• They are all types of weather

• They are all forms of energy

• They are all man-made

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What is potential energy?

• Energy from the sun

• Energy an object has because of its motion

• Energy stored in an object due to its position or shape

• Energy that can be seen

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Which of these examples best shows potential energy?

• A rock rolling down a hill

• A car driving on the road

• A spring that has been compressed

• A fan blowing air

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What happens to potential energy when a rock falls off a cliff?

• It disappears

• It turns into sound energy

• It is stored in the ground

• It is released

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What is kinetic energy?

• Energy that makes light visible

• Energy stored in food

• Energy an object has due to its motion

• Energy that never changes

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A car driving up a hill has kinetic energy because:

• It is above the ground

• It is being stored

• It is moving

• It is turned off

If the speed of an object increases, what happens to its kinetic energy?

• It stays the same

• It decreases

• It disappears

• It increases

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Why does an airplane have both kinetic and potential energy?

• It is made of metal

• It is in the sky and moving

• It is turned off

• It has no energy at all

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What is chemical energy?

• Energy that helps us see

• Energy from moving objects

• Energy stored between particles of matter

• Energy created by sound

Which of the following is an example of electrical energy?

• Cooking food

• Batteries powering a device

• A spring bouncing

• A star shining