Physics (AS & A Level) · May / June 2019 · Paper 13 · Question 22

Wave-power generators take advantage of the energy that is transferred by the motion of waves across the surface of the oceans. The energy of a wave depends on its amplitude. What is the correct definition of amplitude?

1. Athe average amount of energy possessed by a wave
2. Bthe difference in displacement between a peak and a trough
3. Cthe maximum displacement of a point on the wave from equilibrium
4. Dthe number of oscillations of a wave that occur per second

As printed in the paper