Difference between revisions of "Energy"
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(source of usable heat or power) |
(What Liberals Say - Category: Energy) |
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==References== | ==References== | ||
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| + | ==External Links== | ||
| + | *[http://www.aim.org/wls/category/energy/ What Liberals Say - Category: Energy], [[Accuracy In Media]] | ||
[[Category:Physics]] | [[Category:Physics]] | ||
Revision as of 03:09, May 28, 2008
Energy is the ability to do work.[1] In physics, energy is a conserved quantity, and a closed system of interacting particles is known to always have the same value for its energy; this is known as the law of conservation of energy.[2]
Energy is also a source of usable heat or power.