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Card 6
Front
What does a kettle convert electrical energy into?If the kettle has 2.5kW, how many joules are her per second?
Back
Card 7
Front
What is the formula for how much energy is transferred in joules?
Back
Card 8
Front
What is a kilowatt-hour and why do we use it?
Back
Card 9
Front
What is the formula for the amount of energy transferred in kWh?
Back
Card 10
Front
How do you work out the cost if using an appliance?
Back
Card 11
Front
What does an appliance with a high power do?
Back
Card 12
Front
What is the formula for power in Watts?
Back
Card 13
Front
How do you work out the efficiency of something?
Back
Card 14
Front
True or False- Power stations are very efficient?
Back
Card 15
Front
How can we all help reduce energy usage?
Back
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