Physics - Energy Transfers and Efficiency
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Last updated 10:30 AM on 4/4/26
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14 Terms
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Kilograms
kg
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Joules
J
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Metre
m
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metre / second
m/s
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metre / second 2
m/s2
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Newton
N
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Second
s
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Watt
W
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Energy stores
Chemical, kinetic, gravitational, elastic, thermal, magnetic, electrostatic, nuclear
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Energy transfers
Mechanically, electronically, by heating, by radiation
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Formula for answering question about energy transfer
_______ store of _______ decrease, ______ store of _______ increase by _______
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Law of conservation of energy
Energy cannot be destroyed or created, only transferred from one type to another
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Efficiency equation
(useful energy output / total energy output) x 100
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Diagram of useful vs wasted energy
