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More cards in this set
Card 6
Front
What energy transfers take place when you lift a ball into the air and then drop it so it falls to the ground?
Back
Card 7
Front
Wear and tear causes a particular machine to waste more energy. What happens to the efficiency of this machine?
Back
Card 8
Front
Why is an electric heater the only appliance that may have an efficiency of 1, or 100%?
Back
Card 9
Front
Why do electrical appliances such as televisions and computers have vents?
Back
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