The amplitude of a transverse wave is the measurement from the top point or lower point of the wave to the mid point. Amplitude is the amount of energy that the wave contains.
The amplitude of a wave can be described as the maximum amount of displacement from the average position of the wave.
Transverse waves are a type of wave in which movement is perpendicular to the direction the wave is moving. The top point of the movement of a wave is also known as a peak, while the bottom point of the wave movement is the trough. A wavelength is defined as the distance between either the peaks or troughs of one cycle of movement.