Physics Formulae Start Of Yr12

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21 Terms

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Velocity

= displacement/time v = s/t

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Acceleration

= change in velocity/time a = ^v/^t

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Acceleration

= (final - initial velocity)/time a = (v-u)/t

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Resultant force

= mass x acceleration F =ma

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Weight

= mass x gravitational field strength W=mg

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Kinetic Energy

= ½ x mass x speed² KE= ½ mv²

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Change in GPE

= mass x GFS x change in height EGRAV = mg^h

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Momentum

= mass x velocity p=mv

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Force

= rate of change of momentum F=^(mv)/t

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Pressure

= force/area p=f/a

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Work done

= average force x distance moved in the direction of the force W=f^s

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Current

= charge/time I=q/t

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Voltage

= current x resistance V = IR

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Voltage

= energy/charge or work/charge V = E/Q or W/Q

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Power

= current x voltag

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Power

= energy/time P = E/T

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Energy

= power x time E = Pt

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Energy

= current x voltage x time E = VIt

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Wave speed

= frequency x wavelength v = f w

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Change in energy

= speed of light² x change in mass ^E = c² ^m

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