Related Equations for Energy & Motion:

weight = mass x gravitational field strength W = mg
force applied to a spring = spring constant x extension F = ke
Acceleration = change in velocity / time taken a = change in v / t
Momentum = mass x velocity p = mv
GPE = mass x GFS X STRENGTH X HEIGHT Ep = mgh
Power = work done / time P = W/ t
Efficiency = useful power output / total power output
Density = mass / volume P = m / V
Work done = force x distance W = Fs
distance travelled = speed x time s = vt
resultant force = mass x acceleration F = ma
kinetic energy = 0.5 x mass x (speed)squared Ek = 1/2 mv(squared)
power = energy transferred / time P = E / t
Efficiency = useful output energy transfer / total input energy transfer