physics formulae 0.0 / 5 ? PhysicsEquations and FormulaeIGCSEEdexcel Created by: callum slatterCreated on: 15-04-14 14:06 average speed = distance / time 1 of 30 acceleration = change in velocity / time taken 2 of 30 force = mass x acceleration 3 of 30 weight = mass x gravitational field strength 4 of 30 momentum = mass x velocity 5 of 30 force = change in momentum / time 6 of 30 orbital speed = 2 x π x (orbital radius/time period) 7 of 30 moment = force x perpendicular distance between force and pivot 8 of 30 sum of clockwise movements = sum of anticlockwise movements 9 of 30 work done = force x distance moved in direction of force 10 of 30 power = work done / time taken 11 of 30 change in gravitational potential energy = weight x change in vertical height 12 of 30 kinetic energy = 1/2 x mass x velocity^2 13 of 30 efficiency = useful energy transferred / total energy supplied 14 of 30 total energy before event = total energy after event 15 of 30 charge = current x time 16 of 30 voltage = current x resistance 17 of 30 power = voltage x current 18 of 30 electrical energy = voltage x current x time 19 of 30 voltage across secondary coil / voltage over primary coil = number of turns on secondary coil / number of turns on primary coil 20 of 30 secondary coil output power = primary coil input power 21 of 30 wave velocity = frequency x wavelength 22 of 30 frequency = 1 / time period 23 of 30 refractive index = sine of angle of incidence / sine of angle of refraction 24 of 30 sine of critical angle = 1 / refractive index 25 of 30 density = mass / volume 26 of 30 pressure = force / area 27 of 30 pressure in a liquid = liquid density x height of liquid x gravity 28 of 30 boyle's law is p1v1 = p2v2 29 of 30 pressure law is p1/t1 = p2/t2 30 of 30
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