Difference between revisions of "Conservation of Energy"
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: 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]]. | : 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. | : 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 [[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]]. | + | : 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]]. |
Revision as of 17:34, 2 February 2019
Contents
Key Stage 3
Meaning
Conservation of Energy is a Physical Law that states that "Energy cannot be created or destroyed it can only be transferred from one store into another".
About Conservation of Energy
- Conservation of Energy is important when calculating energy transfers.
- The total energy in a closed system must remain the same, so when one energy store loses energy other energy stores must gain that amount of energy.
Key Stage 4
Meaning
Conservation of Energy is a Physical Law that states that "Energy cannot be created or destroyed it can only be transferred from one store into another".
About Conservation of Energy
- Conservation of Energy is important when calculating energy transfers.
- The total energy in a closed isolated system must remain the same, so when one energy store loses energy other energy stores must gain that amount of energy.
- If a system is an open system energy can leave the system, but the energy is not destroyed.
- In a closed isolated system energy can be dissipated, which means it is still in the system but is wasted and cannot be recovered to perform useful work.