What is the definition of power?
The rate of energy transfer.
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What is the formula linking power (P), Work done (ΔW), and time taken (Δt)?
P = power (W)
ΔW = work done (J)
Δt = time taken (s)
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What is the formula linking percentage efficiency, input energy, and useful work output?
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What does it mean if a system is 100% efficient?
No energy is wasted or lost to the surroundings.
The total work input will equal the total work output.
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