Here's why:
* Amplitude: Amplitude is the maximum displacement of a point on a wave from its rest position. Think of it as the "height" of the wave.
* Energy: Energy is the ability to do work. In a mechanical wave, the energy is stored in the vibrations of the medium (like the air for sound waves or the water for water waves).
The greater the amplitude, the more the medium is displaced, and the more energy the wave carries. This relationship is directly proportional: a larger amplitude means more energy, and vice versa.
