ABSTRACT
P = E/t Energy transferred = work done Gravitational potential energy transferred (J) = mass
(kg) × gravitational field strength (N/kg) × change in height (m) GPE = mg∆h
Kinetic energy (J) = 1/2 mass of object (kg) × [speed (m/s)]2. KE = × mv2
Efficiency (%) = useful energy output (J) / total energy input (J) × 100%.
