Unit 2 - Energy

What is energy?

• the ability to do work

• the weight and speed of a moving object

• another name for collision

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Check all (three) examples of energy transfer.

• a swinging baseball bat hitting the ball

• a moving ball hitting the bowling pins

• making slime

• bumper cars

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Finish the sentence:

The faster an object is moving, ...

• the faster it stops.

• the less energy it uses.

• the more energy it can transfer.

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True or False? The heavier an object, the more energy it can transfer.

• TRUE

• FALSE

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Into which three forms can energy be transferred?

• light

• strength

• sound

• heat

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What do we call the process of energy moving from one place to another?

• electrical energy

• energy transfer

• stored energy

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Select an example of heat moving from warm objects to cool objects.

• a drum creating vibrations

• a moving foot transferring energy to the soccer ball

• pedaling a bike

• the energy from the burning wood transferred to a marshmallow

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What are three sources of light energy?

• sun

• battery

• lightbulb

• candle

• drum

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Finish this sentence:

Wavelength measures the distance between wave peaks. The closer the peaks of the wave are to each other,

• the less energy the waves have.

• the more energy the waves have.

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How do light waves move?

• in straight lines

• from object to the source of light

• on top of water

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