Energy Equations 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: hollyjo02Created on: 29-03-17 20:09 Kinetic Energy kinetic energy = 0.5 × mass × speed 2 1 of 7 GPE g.p.e. = mass × gravitational eld strength × height 2 of 7 EPE elastic potential energy = 0.5 × spring constant × extension 2 3 of 7 Power power = energy transferred ÷ time 4 of 7 Power 2 power = work done ÷ time 5 of 7 Efficiency 1 efciency = useful output energy transfer ÷ total input energy transfer 6 of 7 Efficiency 2 efciency = useful power output ÷ total power input 7 of 7
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