All equations Flashcards by Imogen Pepper

Q

Weight

A

mass x gravitational field strength

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Q

Work done

A

force x distance

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Q

Force applied to a string

A

spring constant x acceleration

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Q

Distance travelled

A

speed x time

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Q

Acceleration

A

change in velocity / time taken

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Q

Resultant force

A

mass x acceleration

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Q

Momentum

A

mass x velocity

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Q

Kinetic energy

A

0.5 x mass x speed^2

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Q

Gravitational potential energy

A

mass x gravitational field strength x height

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Q

Power

A

energy transferred / time

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Q

Power

A

work done / time

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Q

Efficiency

A

useful output energy or power transfer / total input energy or power transferred

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Q

Wave speed

A

frequency x wavelength

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Q

Charge flow

A

current x time

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Q

Potential difference

A

current x resistance

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Q

Power

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A

potential difference x current

Q

Power

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A

current^2 x resistance

Q

Energy transferred

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A

power x time

Q

Energy transferred

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A

charge flow x potential difference

Q

Density

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A

mass / volume