Define the law of conservation of energy?

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Alumni, IIT Delhi

The law of conservation of energy states that the total energy of an isolated system remains constant—it is said to be conserved over time. Energy can neither be created nor destroyed; rather, it transforms from one form to another.
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labhome

energy neither can be created nor be destroyed
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The Law of Conservation of Energy states that energy cannot be created or destroyed, just transformed from one form to another. These forms can include kinetic and potential energy as well as light, heat and sound.
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In physics, the law of conservation of energy states that the total energy of an isolated system remains constant—it is said to be conserved over time. Energy can neither be created nor destroyed; rather, it transforms from one form to another.
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Brilliant Minds

Law of conservation states that "Energy can neither be created nor be destroyed. It can only be transferred from one form to another."
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Physics Subject Expert

Law of conservation of energy states that energy can neither be created no be destroyed. It can be converted from one form to another.
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