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12 questions from this quiz
From warm places to cooler places
Temp. difference, thickness, conductivity
Heat transfers faster
Slows down heat transfer
How well material conducts heat
Metals
Plastic and wood
How well devices transfer useful energy
useful energytotal energy×100%\frac{\text{useful energy}}{\text{total energy}} \times 100\%total energyuseful energy×100%
Efficiency has no units
100%
60%
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