What is the lowest point of a wave called?

The lowest point of a wave is known as the trough. In waveform terminology, a trough is defined as the point where the wave reaches its minimum displacement from the rest position. This is crucial in understanding wave behavior, as it corresponds to the lowest energy state of the wave when viewed mathematically or physically.

In the context of wave motion, the crest represents the highest point, while amplitude refers to the height or depth of the wave measured from the rest position to either the crest or the trough. The medium pertains to the substance through which the wave travels, such as air, water, or a solid material. Each of these terms plays a significant role in the study of waves, yet the specific term for the lowest point is unequivocally the trough.