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→About Conservation of Energy
: The total [[energy]] in a [[Closed Isolated System|closed isolated system]] must remain the same, so when one [[Energy Store|energy store]] loses [[energy]] other [[Energy Store|energy stores]] must gain that amount of [[energy]].
: If a [[system]] is an [[Open System|open system]] [[energy]] can leave the [[system]], but the [[energy]] is not destroyed.
: In a [[Closed Isolated System|closed isolated system]] [[energy]] can be [[Dissipated Energy|dissipate]]d, which means it is still in the [[system]] but is [[Wasted Energy|wasted]] and cannot be recovered to perform useful [[Work Done|work]].