4th Grade Energy!

Energy is

• all around us.

• easy to hold in your hands.

• very expensive.

• destroyed every day.

The "ability to do work" is the definition of

• sound.

• kinetic.

• energy.

• heat.

Our biggest source of energy is

• batteries.

• windmills.

• the moon.

• the sun.

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An example of kinetic energy is

• riding a bike.

• skateboarding.

• a Hot Wheel going down a ramp.

• all of the above.

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An example of potential energy is

• sound from a television.

• a child at the top of a slide.

• the light from a flashlight.

• a football flying through the air.

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This is an example of

• heat energy.

• the transfer of energy (kinetic and potential).

• solar energy.

• the transfer of heat to solar energy.

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What does a generator do?

• creates energy

• transfers energy from one form to another

• gets fossil fuels from the earth

• destroys energy

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Which of these is an example of energy transfer?

• electricity charging an iPad

• gas fueling a car

• a grill cooking steaks

• all of the above

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Which of these things happen in a collision?

• energy is transferred

• sound is produced

• motion from one object goes into the other

• all of the above

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You can increase the energy in a collision by

• increasing the starting height/increasing speed

• increasing the object mass/increasing speed

• both of these

• none of these

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