1.3.3 POWER

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What is power?
The rate of work done
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Define the Watt
power dissipated when 1 joule of energy is transferred in 1 sec
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Describe the efficiency of devices
never 100% due to heat losses
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How do you calculate efficiency?
(useful output/ total output)x100
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What is a Sankey Diagram?
represents energy transfer / width of the arrows represents % energy transfer
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Other cards in this set

Card 2

Front

Define the Watt

Back

power dissipated when 1 joule of energy is transferred in 1 sec

Card 3

Front

Describe the efficiency of devices

Back

Preview of the front of card 3

Card 4

Front

How do you calculate efficiency?

Back

Preview of the front of card 4

Card 5

Front

What is a Sankey Diagram?

Back

Preview of the front of card 5

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