Work, Energy & Power - R&C
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8 Terms
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How to find Work Done? (Units + SI Units)
Work done (W) = Force (N) * Distance (m)
Work done = kgm^2s^-2
2
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How to find Work done at an angle?
Work done = Fdcos(x)
3
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How to fine GPE? (+ SI units)
GPE = mgh
GPE = kgm^2s^-2
4
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How to find kinetic energy? (+ SI units)
KE = 1/2mv^2
KE= kgm^2s^-2
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How to calculate Power?
Power = Work(J)/Time(s)
Power = kgms^-3
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How to calculate efficiency?
Useful energy output/Total energy output
OR
Useful work done/Total work done
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What is a smooth surface?
A surface without friction or any force resisting its motion
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What is the principle of the Conservation of Energy?
Energy cannot be created or destroyed, it can only be transferred from one form to another
Note 
Flashcards (47)