FORMULAE Y9 Flashcards by John Lyon Year 9

Q

acceleration

A

a= v-u/t
final - intial /time

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Q

Force

A

F=mxa

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Q

efficiency

A

useful energy / total energy supplied to device

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Q

wave speed

A

frequenct x wavelength

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Q

workdone

A

E=Fxd force x distance travelled

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Q

change in gpe

A

mxgxh massxgravitaional field strengthx change in height

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Q

power

A

workdone/time taken

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Q

kinetic energy

A

1/2 x mass x speed squared

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Q

Wavelength

A

Wave speed/frequency

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Q

Frequency

A

1/time period

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Q

Gradient of a tangent

A

change in vertical/change in horizontal

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Q

Depth

A

distance/2

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