Definition: Energy

Energy

Broadly defined as the capacity to do work. There are many forms of energy, including: chemical, electrical, gravitational, mechanical, nuclear, radiant, and thermal energy. The official SI unit for energy is the joule (J); energy can also be measured in calories or British thermal units (Btu).

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Wikipedia Definition

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Reegle Definition

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Related Terms

Electricity, Power, electricity generation, system, Thermal energy, Electric power, Electrical Energy, Chemical energy