Physics formulae for beginners

Electrical energy in the home E = F/q E = electric field strength F = force q = charge E = kq/r2 E = electric field strength k = 9.00 x 109 q = charge r = separation of charges F = Eq F = force E = electric field strength q = charge R = V/I R = resistance V = potential drop I = current R = kl/A R = resistance k = P = VI (P = V2/R or P = I2R) P = Power V = Voltage rise I = Current R = resistance …

…centre of the circle) m = mass v = constant speed r = radius Ek = 1/2mv2 Ek = kinetic energy m = mass v = speed W = Fs W = work F = magnitude of force s = displacement in the direction of the force p = mv p = momentum m = mass of object v = velocity I = Ft I = impulse F = force t = time V = W/Q V = potential difference in volts W = work done by field in joules Q = charge being pushed in coulombs