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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

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Card 7

Front

What is the formula for how much energy is transferred in joules?

Back

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Card 8

Front

What is a kilowatt-hour and why do we use it?

Back

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Card 9

Front

What is the formula for the amount of energy transferred in kWh?

Back

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Card 10

Front

How do you work out the cost if using an appliance?

Back

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Card 11

Front

What does an appliance with a high power do?

Back

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Card 12

Front

What is the formula for power in Watts?

Back

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Card 13

Front

How do you work out the efficiency of something?

Back

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Card 14

Front

True or False- Power stations are very efficient?

Back

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Card 15

Front

How can we all help reduce energy usage?

Back

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