Work, Energy and Power definitions

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  • Created by: JOSA
  • Created on: 24-10-19 16:38
Work done
Energy transferred when an object is moved (unit: Joules)
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Power
Energy transferred per second (unit: Watts)
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Efficiency
Percentage of total energy input to an appliance that is useful work and not wasted
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Conservation of energy
Energy cannot be created or destroyed, it can only be transferred from one store to another
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Newton
the unit for measuring force
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Joules
The unit for energy
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Mega
A prefix for one million
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Kilo
A prefix for one thousand
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Milli
A prefix for one thousanth of a unit
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Useful energy
The energy that is used for work and not wasted
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Wasted energy
Energy that is lost to the surroundings, usually as heat
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Other cards in this set

Card 2

Front

Energy transferred per second (unit: Watts)

Back

Power

Card 3

Front

Percentage of total energy input to an appliance that is useful work and not wasted

Back

Preview of the back of card 3

Card 4

Front

Energy cannot be created or destroyed, it can only be transferred from one store to another

Back

Preview of the back of card 4

Card 5

Front

the unit for measuring force

Back

Preview of the back of card 5
View more cards

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