Paper 1 Equations

• distance travelled = average speed x time
• Acceleration = change in velocity / time
• Force = mass x acceleration
• Weight = mass x g
• Momentum = mass x velocity
• Force = change in momentum / time
• Gravitational potential energy = mass x g x height
• Kinetic energy = 1/2 x mass x speed^2
• Efficiency = useful energy output / total energy input x 100
• Wavespeed = frequency x wavelength
• Wave speed = distance / time