1001
Space
Earth
Nature
History
Human World
Science and Technology
Chemistry
Materials
Heat and Light
Electricity and Magnetism
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Cars and Trucks
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What is energy?
Energy is the ability of something to do work. There are two kinds of energy: potential (stored) energy and kinetic energy (energy associated with movement). The different kinds of energy include heat, light, sound, electrical, chemical, and nuclear.
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Light is one form of energy
 
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Force and Energy