formulas Flashcards by Haeun Chun

Q

acceleration

A

v-u/t

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Q

weight

A

mass x gravity

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Q

force

A

acceleration x mass

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Q

density

A

mass/volume

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Q

work done (weight)

A

weight x height

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Q

kinetic energy

A

1/2 x mass x volume2

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Q

work done (force)

A

force x distance

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Q

gravitational potential energy

A

mass x gravity x height

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Q

power (energy)

A

energy transferred / time

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Q

momentum (force)

A

force x distance

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Q

momentum (mass)

A

mass x velocity

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Q

power (work)

A

work done / time

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Q

efficiency (power)

A

useful power output / total power output

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Q

force (load)

A

spring constant x extension

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Q

efficiency (work)

A

useful work done / total energy input

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Q

efficiency (energy)

A

useful energy output / total energy input

Q

useful power output

A

force x speed

Q

work done (energy)

A

force x displacement

Q

pressure

A

force/area

Q

speed (waves)

A

frequency x wavelength

Q

frequency (waves

A

1/time

Q

pressure in liquid

A

density x gravity x depth

Q

refractive index (sin)

A

sin i / sin r

Q

refractive index (speed)

A

speed of light in vacuum / speed of light in medium

Q

sin critical angle

A

1/refractive index