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Description
Flashcards by Adam Collinge, updated more than 1 year ago
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Created by Adam Collinge
over 10 years ago
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| Question | Answer |
| What are the units of energy, associated with the cost of electricity? | Kilowatt-hours (kWh) |
| What is the equation for the amount of energy transferred by an appliance? | Energy = Power x Time J=kWxh |
| What is a Kilowatt-hour? | The amount of electrical energy used by a 1 kW appliance, left on for 1 hour |
| Give two formulas for calculating the cost of electricity. How do you use them? | 1) units= kW x hours 2) Cost= units x Price Work out formula 1, then use those numbers in formula 2 |
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