GPE = mass x height GPE = mass x gravity GPE = mass x height x gravity GPE = (mass x height) ÷ gravity
Plastic Rock A bone A spring
It is moving It is stationary It is big It is very small
Kinetic energy = mass x velocity Kinetic energy = ½ x mass x velocity² Kinetic energy = (mass x velocity)² Kinetic energy = (mass ÷ velocity)²
Energy is a force and work done is how hard you push it Energy is a form of heat and work done is a form of labour Energy is the ability to do work and work done is how much energy you get back again There is no difference
Amps Joules Volts Watts
Power = energy x time Power = energy ÷ time Time = power x energy Power = (energy + time)²