Difference between revisions of "Energy"
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'''Energy''' is the ability to do work.<ref>Wile, Dr. Jay L. ''Exploring Creation With [[Chemistry]]''. Apologia Educational Ministries, Inc. 1998</ref> 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.<ref>Halliday, Resnick, Walker: '' Fundamentals of Physics'', 6th Edition</ref> | '''Energy''' is the ability to do work.<ref>Wile, Dr. Jay L. ''Exploring Creation With [[Chemistry]]''. Apologia Educational Ministries, Inc. 1998</ref> 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.<ref>Halliday, Resnick, Walker: '' Fundamentals of Physics'', 6th Edition</ref> | ||
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| + | Energy is also a source of usable heat or power. | ||
==References== | ==References== | ||