Physics Equations Flashcards by Shivam Lakhani | Brainscape

Q

density

A

mass/volume

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Q

efficiency

A

useful energy out/total energy in

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Q

efficiency

A

useful power out/total power in

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Q

speed

A

distance/time

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Q

speed

A

frequency x wavelength

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Q

angle of incidence

A

angle of reflection

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Q

average speed

A

total distance/time

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Q

acceleration

A

change in velocity/time

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Q

weight

A

Mass x Gravity (10 on Earth, 1.6 on Moon)

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Q

force

A

mass x acceleration

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Q

force

A

change in momentum/time

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Q

momentum

A

mass x velocity

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Q

work done

A

force x distance moved

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Q

average power

A

work done/time taken

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Q

average power

A

energy transfered/time taken

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Q

K.E

A

0.5 x mass x velocity^2

Q

Force x distance

A

0.5 x mass x speed^2

Q

G.P.E

A

mass x gravity x height

Q

K.E gained

A

G.P.E lost

Q

Current

A

Charge/time

Q

P.D

A

work done/charge

Q

P.D

A

current x resistance