8549973
Description
Mind Map by Rick Wear, updated more than 1 year ago
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Created by Phoebe Drew
over 9 years ago
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Copied by Rick Wear
about 7 years ago
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Physics P1 - Electrical Energy
- Electrical
Appliances
- Transfers electricity
into any useful form
- Should waste as little
energy as possible
- Transfers electricity
into any useful form
- Electrical
Power
- Power- Rate it transfers
energy
- Watt
- 1kW=1000W
- 1kW=1000W
- Watt
- Power= Energy/ Time
- Power- Rate it transfers
energy
- Using Electrical
Energy
- Kilowatt-hour- Energy
transferred to kW
appliance in an hour
- Energy= Power x
Time
- kw=kW x
h
- kw=kW x
h
- Total cost= Number of kWh x Cost per
kWh
- Kilowatt-hour- Energy
transferred to kW
appliance in an hour
- Cost Effectiveness
Matters
- Best value for
money
- Payback Time- Time for appliance to
save same as it cost
- Payback Time= Cost/ Saving per
year
- Payback Time= Cost/ Saving per
year
- Best value for
money
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