energy and energy transfer
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energy is a capacity to do work
energy can be converyed into other form
like heat to light to mechanical to electrical to chemical
energy can be converyed into other form
like heat to light to mechanical to electrical to chemical
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2
Energy is defined as the capacity of a physical system to perform work. However, it's important to keep in mind that just because energy exists, that doesn't mean it's necessarily available to do work.
Energy transfer is the conveyance of energy from one item to another; the transfer occurs among different scales and motions.
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