equations

• distance = speed x time

  x = s x t
• acceleration = change in velocity/ time

  a = v - u / t
• force = mass x acceleration

  f = m x a
• weight = mass x gravitational field strength

  w = m x g
• momentum = mass x velocity

  p = m x v
• KE = 1/2 x mass x velocity^2
• efficiency = useful energy / total energy x 100
• wave speed = frequency x wavelength
• wave speed = distance / time

  v = x / t
• v^2 - u^2 = 2ax
• force =change in momentum / time

  mv - mu / t