law of conservation of energy


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law of conservation of energy

The principle that energy can neither be created nor be destroyed, now part of the first law of thermodynamics. The term is also used as a synonym for the first law of thermodynamics. See Note at thermodynamics.
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Noun1.law of conservation of energy - the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
law of thermodynamics - (physics) a law governing the relations between states of energy in a closed system
conservation - (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
References in periodicals archive ?
The Bernoulli principle is based on the law of conservation of energy, which asserts that in any system energy can neither be created, nor destroyed; however, energy can be transformed.
The extraction of more energy than it takes to magnetize a permanent magnet could be considered a violation of the Law of Conservation of Energy -- one of the pillars of physics.
If the diet is not hypocaloric, there should be no doubt that there will be no success and no weight loss, as one cannot circumvent, overcome, or alter nature's law of conservation of energy.

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