Physics equations

• The equation to calculate kinetic energy is:

  Ke=1/2(0.5)x m (kg) x v^2 (m/ps)
• The equation to calculate the gain in gravitational potential energy is:

  Ep (GPE)= m (kg) x gravitational field strength (g) x height
• The equation to calculate the loss of gravitational potential energy is:

  Ep (GPE)= m (kg) x gravitational field strength (g) x Δh (change in height)
• Work done= force (N) x distance (m)
• Weight= mass (kg) x gravity
• The equation to calculate the elastic potential energy is:

  Ep (EPE)= 1/2 (0.5) x K (constant) x e^2 (extension)
• The efficiency of a device= (useful energy transferred by the device/ total energy supplied to the device) x 100
• Power= work done (J) / time (s)
• Energy transferred (ΔE)= m (kg) x specific heat capacity (c, measured in J/Kg °C) x Δδ (change in temperature)