Most fundamentally, energy is the ability of an object or a system to perform work, and we most often observe energy indirectly by the work that is performed. The motion of an object through space, the heating of a substance and the illumination of a room are all examples of work being done and represent different forms of energy.
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Bonneville Environmental Foundation
240 SW 1st Avenue
Portland OR 97204
phone: 503-248-1905 • fax: 503-248-1908