physics equations 0.0 / 5 ? PhysicsForcesGCSEAQA Created by: shezzzCreated on: 30-10-20 13:28 efficiency equation efficiency= (useful energy out/total energy in) x100 1 of 8 kinetic energy Ek=1/2 mv2 2 of 8 elastic energy store Ee=1/2ke2 3 of 8 gravitiational potential energy GPE= mgh 4 of 8 work done work done= force x distance 5 of 8 resistance equation resistance= potential difference/ current 6 of 8 specific heat capacity change in energy/ mass x temperature change 7 of 8 power equation power= energy/ time 8 of 8

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