This physics formulas reference lists the core equations of mechanics, energy and electricity — speed, force, energy, power, density, pressure and Ohm’s law.
| Quantity | Formula |
|---|---|
| Speed | v = d ⁄ t |
| Acceleration | a = Δv ⁄ t |
| Force | F = m × a |
| Weight | W = m × g |
| Momentum | p = m × v |
| Kinetic energy | KE = ½ m v² |
| Potential energy | PE = m g h |
| Work | W = F × d |
| Power | P = W ⁄ t |
| Density | ρ = m ⁄ V |
| Pressure | P = F ⁄ A |
| Ohm's law | V = I × R |
| Wave speed | v = f × λ |