Download Formulae shortened version

Advanced level formulae – shortened version
This is a shortened list of formulae that you might need for the first year of your advanced
Physics course. For a fuller list please use the Formulae file.
Quantity
Formula
Acceleration
Acceleration = change in speed/time taken
De Broglie equation
Wavelength of particle () = h/mv
Density
Density = mass/volume
Double slit interference
= ax/D
Electric current
Current () = charge/time = Q/t
Electrical energy
Energy = VIt
Electrical resistance
R = voltage/current = V/I
Force
F = ma
Force on a current in a magnetic field Force = BIL sin 
Gravitational potential energy
Gravitational potential energy = mgh
Kinetic energy
Kinetic energy = ½ mv2
Moment of a force
Moment = Force x distance from pivot
Momentum
Momentum = mass x velocity
Photoelectric effect
hf =  + ½ mv2
Photon energy
Energy (E) = Planck's constant (h) x frequency
Potential difference
V = W/Q = energy/charge = Power/Current
Power
Power = Work/Time = Force x velocity
Power
Power = V = V2/R =I2R
Pressure
P = Force/Area
Refractive index
Refractive index (n) = sin i/ sin r = ci/cr
Resistivity
Resistivity () = RA/L
Resistors in parallel
1/R = 1/R1 + 1/R2 + 1/R3 etc.
Resistors in series
R = R1 + R2 + R3 etc.
Speed
Speed = distance/time
Strain
Extension/Original length ()
Stress
Force/Area ()
Torque of a couple
Torque = Force x distance between forces
Uniformly accelerated motion
s = ut + ½ at2 v2 = u2 + 2as
Wave speed
Wave speed = frequency x wavelength
Weight
W = mg
Work done
Work = Force x distance
Young modulus
E = Stress/Strain = FL/eA