Energy, Work & Power and Waves & EM Spectrum Formulae

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Physics

IGCSE Physics

Edexcel

Last updated 6:02 PM on 3/3/26

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Work done

Work done = force x distance (w=fd)

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GPE

GPE = mass x gravitational field strength x height (GPE = mgh)

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KE

KE = ½ x mass x speed² (KE=1/2mv²)

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Power

Power = work done / time (P=w/t)

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Final speed

Final speed² = initial speed² + 2 x acceleration x distance moved (v²=u²+2as)

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Refractive Index

n=sin(i)/sin(r)