What is the measure of the number of waves passing a fixed point per second?

The measure of the number of waves passing a fixed point per second is known as wave frequency. It is quantified in hertz (Hz), which indicates how many cycles or waves occur in one second. For instance, if a wave frequencies at 5 Hz, it means that five complete waves pass a fixed point every second.

Wave speed, on the other hand, refers to the distance a wave travels per unit of time and is influenced by the medium through which the wave propagates. Wave height denotes the vertical distance between the crest (the highest point) and the trough (the lowest point) of a wave, and amplitude is half of the wave height, representing the maximum displacement of points on a wave from its rest position. While these parameters pertain to wave characteristics, none of them detail the rate at which waves pass a fixed point, which is the specific definition of wave frequency.