(a) show understanding that kinetic energy, potential energy (chemical, gravitational, elastic), light
energy, thermal energy, electrical energy and nuclear energy are examples of different forms of
energy
(b) state the principle of the conservation of energy and apply the principle to new situations or to
solve related problems
(c) calculate the efficiency of an energy conversion using the formula efficiency = energy converted to
useful output / total energy input
(d) state that kinetic energy Ek = ½ mv 2 and gravitational potential energy Ep = mgh (for potential
energy changes near the Earth’s surface)
(e) apply the relationships for kinetic energy and potential energy to new situations or to solve related
problems
(f) recall and apply the relationship work done = force × distance moved in the direction of the force
to new situations or to solve related problems
(g) recall and apply the relationship power = work done / time taken to new situations or to solve
related problems
