Equations you should know 2.0 / 5 PhysicsEquations and FormulaeIGCSEOCR Created by: Alister JohnsonCreated on: 12-03-13 18:27 Velocity frequency x wavelength 1 of 28 Density Mass/Volume 2 of 28 Acceleration Change of velocity/time 3 of 28 Ideal transformer ( for 100% efficiency) Vp Ip = Vs Is 4 of 28 Average speed Total distance/Total time 5 of 28 Kinetic energy 1/2 x Mass x Velocity squared 6 of 28 Potential energy Mass x gravitational field strength x height 7 of 28 Refractive index (1) Speed of light in a vacuum/speed of light in a material 8 of 28 Refractive index (2) Sine of angle to the normal/Sine of angle to the normal in material 9 of 28 Specific latent heat Energy/mass 10 of 28 Resistence Voltage/current 11 of 28 Electrical power Current x voltage 12 of 28 Energy Mass x specific heat capacity x temperature change 13 of 28 Efficiency Useful energy output/ Total energy input (x 100%) 14 of 28 Moment of a force Force x perpendicular distance from pivot 15 of 28 Force Spring constant x extension 16 of 28 Weight Mass x gravitational field strength 17 of 28 Unbalanced force Mass x acceleration 18 of 28 Work done Force x distance = change of energy 19 of 28 Power Energy / time 20 of 28 Pressure (1) Force / area 21 of 28 Pressure (2) Depth x density x gravitational field strength 22 of 28 Pressure (3) Pressure x volume = Constant (at constant temperature) 23 of 28 Frequency 1 / time period 24 of 28 Current Charge / time 25 of 28 Electrical energy Current x voltage x time 26 of 28 Ideal transformer Vp/Vs=Np/Ns 27 of 28 End of Physics IGCSE equations test Thank you for participating 28 of 28

## Comments

No comments have yet been made