Electrical Energy (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Practise the cards
12 cards from this deck
Energy transfer in a motor
Energy transfer in a motor
Electrical to kinetic energy
Energy transfer in a kettle
Energy transfer in a kettle
Electrical to thermal energy
Work done when charge flows equals
Work done when charge flows equals
Energy transferred
Power rating shows
Power rating shows
Power used by appliance (in Watts)
Unit of power rating
Unit of power rating
Watts
Effect of greater power rating
Effect of greater power rating
Uses more energy
Example: electrical to kinetic appliance
Example: electrical to kinetic appliance
Fan or blender
Extra energy from motors (friction)
Extra energy from motors (friction)
Thermal energy
Example: electrical to thermal appliance
Example: electrical to thermal appliance
Iron or kettle
Thermal appliances' power rating
Thermal appliances' power rating
Usually higher
Example: kinetic + thermal appliance
Example: kinetic + thermal appliance
Hair dryer or washing machine
Hair dryer energy transfer
Hair dryer energy transfer
Electrical to kinetic + thermal