Physics Formulae 0.0 / 5 ? PhysicsEquations and FormulaeIGCSEEdexcel Created by: SamDaviesCreated on: 28-01-14 18:08 Speed Speed = Distance/Time 1 of 26 Weight w = m X g 2 of 26 Acceleration Acceleration = Change in velocity/Time taken 3 of 26 Momentum Mass X Velocity 4 of 26 Density Density = Mass/Volume 5 of 26 Force F = m X a 6 of 26 Extention Extention = Constant X Load or x = k X F 7 of 26 Work Done Work Done = Force X Distance 8 of 26 Gravitational Potential Energy GPE = m X g X h 9 of 26 Kinetic Energy K.E. = 1/2 X m X v2 10 of 26 Efficiency Efficiency = (Useful energy output/Total energy input) X 100% 11 of 26 Power Power = Work done/Time taken 12 of 26 Wave Speed Wave Speed = Frequency X Wavelength 13 of 26 Angle of Incidence Angle of Incidence = Angle of Reflection or i = r 14 of 26 Index of Refraction n = Sin i / Sin r 15 of 26 Charge Charge = Current X Time 16 of 26 Voltage Voltage = Current X Resistance 17 of 26 Electrical Power Electrical Power = Current X Voltage 18 of 26 Energy Transferred Energy Transferred = Current X Voltage X Time 19 of 26 Voltage and Number of Turns (Transformers) Vp/Vs = Np/Ns 20 of 26 Voltage and Current (Transformers) Input Power = Output Power or VpIp = VsIs 21 of 26 Pressure Pressure = Force / Area 22 of 26 Pressure Difference Pressure Difference = Height X Density X Gravitational field strength or p = h X p X g 23 of 26 Pressure and Volume P1V1 = P2V2 24 of 26 Pressure and Temperature P1/T1 = P2/T2 25 of 26 Moment Moment = Force X Perpendicular distance from pivot 26 of 26
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