Energy (Chapter 2)

ENERGY

​Energy

The ability to do work or cause change.

​Work

Work is done when force moves an object.

The sun is the main source of energy at Earth's surface.

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Forms of energy

The movement of electric charges

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​Electrical Energy

Energy we can see.

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​Light Energy

The transfer of energy from a warmer object to a colder object.

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​Heat Energy or

Thermal

Energy that motion or position gives to an object

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​Mechanical Energy

​Energy we can hear

Sound Energy

Energy can change forms

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Multiple Choice

Which is not an example of energy changing forms?

• Flipping a light switch

• Turning on a radio

• Sitting on top of a slide

• Turning on the television

Energy Travels

Motion

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Energy travels in

​Water

Energy travels in

​Waves

Energy travels in

​Short wave lengths equals more energy

Energy Waves

​Long wave lengths equals less energy

Energy Waves

Energy Waves