Flashcards
P1.2 Using Energy
Flashcards do conjunto (6)
- 1What is the name of the rule that the total energy after a transfer is always the same as before the transfer?The conservation of energy
- 2Energy can be used in two ways:-Useful energy
-wasted energy - 3Energy becomes less useful the more it...Spreads out.
- 4What does a Sankey diagram look like?
- 5What's the equation for finding the efficiency of a machine?Useful energy/Total energy *100 (to make %)
- 6What are some of the measure to try and make machines more efficient? (3)-Reducing friction
-Reducing resistance
-Reducing electrical resistance
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- GCSE Physics FlashCards sobre P1.2 Using Energy, criado por Emily Treloar em 28-11-2015.
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- Emily Treloar
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