Equations

• kinetic energy = 0.5 x mass x speed^2
• GPE = mass x gravitational field strength x height
• power = work done / time taken
• power = energy transferred / time taken
• efficiency = useful energy output / total energy input
• efficiency = useful power output / total power input
• wave speed = frequency x wavelength
• weight = mass x gravitational field strength
• work done = force x distance
• force = spring constant x extension
• moment of a force = force x distance
• pressure = force normal to a surface / area of that surface
• distance = speed x time
• acceleration = change in velocity / time taken
• resultant force = mass x acceleration
• momentum = mass x velocity