Power (AQA GCSE Physics): Flashcards
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Practise the cards
12 cards from this deck
Power measures
Power measures
Rate at which work gets done
Unit of power
Unit of power
Watts (W)
1 watt equals
1 watt equals
1 joule per second ()
Power formula (with energy transferred)
Power formula (with energy transferred)
Power formula (with work done)
Power formula (with work done)
Higher power rating means
Higher power rating means
More energy transferred per second
Typical hairdryer power rating
Typical hairdryer power rating
1500 W
Typical TV power rating
Typical TV power rating
50 W
Typical microwave oven power rating
Typical microwave oven power rating
850 W
Typical jet engine power rating
Typical jet engine power rating
W
1 gigawatt (1 GW) in watts
1 gigawatt (1 GW) in watts
W
When calculating power, time must be measured in
When calculating power, time must be measured in
Seconds
