Physics Equations 0.0 / 5 ? PhysicsEquations and FormulaeIGCSEEdexcel Created by: Former MemberCreated on: 17-12-13 14:53 Average speed Average speed = distance moved/time taken 1 of 24 Acceleration Acceleration = change in velocity/time taken 2 of 24 Force Force = mass x acceleration 3 of 24 Weight Weight = mass x grams 4 of 24 Momentum Momentum = mass x velocity 5 of 24 Force Force = change in momentum/time taken 6 of 24 Moment Moment = force x perpendicular distance from the pivot 7 of 24 Orbital speed Orbital = (2 x π x orbital radius)/time period 8 of 24 Power Power = current x voltage 9 of 24 Energy transferred Energy transferred = current x voltage x time 10 of 24 Voltage Voltage = current x resistance 11 of 24 Charge Charge = current x time 12 of 24 Wave speed Wave speed = frequency x wavelength 13 of 24 Frequency Frequency = 1/time period 14 of 24 Refractive index n = sin i/sin r 15 of 24 Critical angle sin c = 1/n 16 of 24 Efficiency Efficiency = useful energy output/total energy input 17 of 24 Work done Work done = force x distance moved 18 of 24 Gravitational potential energy Gravitational potential energy = mass x g x height 19 of 24 Kinetic energy Kinetic energy = 0/5 x mass x (speed x speed) 20 of 24 Power Power = work done/time taken 21 of 24 Density Density = mass/volume 22 of 24 Pressure Pressure = force/area 23 of 24 Pressure difference Pressure difference = height x density x g 24 of 24
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