Physics equations paper one

• What is the equation for density?


  Density=mass ÷ volume
• What is the equation for moments (Nm) ?


  Force x distance of line of action
• KE = ?


  1/2 mv^2
• Work done = force x distance
• Efficiency = useful energy output/total energy input
• Gravitational potential?

  Ep=mgh
• What are the equations for power?

  Power= energy/time or power= work done/time