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Card 16
Front
What is efficiency measured in?
Back
Card 17
Front
What makes a machine efficient?
Back
Card 18
Front
What does a Sankey diagram show?
Back
Card 19
Front
What is power?
Back
Card 20
Front
Why do we use kilowatt-hours?
Back
Card 21
Front
What is a kilowatt-hour?
Back
Card 22
Front
What is payback time?
Back
Card 23
Front
What is the general idea of how a power station works?
Back
Card 24
Front
Why do we want to reduce our use of fossil fuels?
Back
Card 25
Front
Name 4 renewable energy sources.
Back
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