Physics: energy equations
charge flow
Q = It
potential difference
V = IR
power including current and potential difference
P = IV
power including current and resistance
P = I^2R
power including energy transferred and time
P = E/T
power including potential difference and resistance
P = V^2/R
energy transferred including power and time
E = Pt
energy transferred including charge flow and potential difference
E = QV
gravitational potential energy
mgh
kinetic energy
1/2mv^2
Elastic energy
1/2ke^2
efficiency
useful ouput/total input
change in thermal energy
m x c x change in temp
density
mass/volume
Thermal energy for a change in state
m x L
equation linking volume and pressure
pV = constant