What is the unit of measurement for frequency?

The unit of measurement for frequency is Hertz, which is defined as one cycle per second. Frequency is a fundamental concept in both physics and engineering, representing how often a repeating event occurs in a given time period. In the context of sound waves, for example, Hertz indicates how many times the sound wave oscillates or alternates in one second, thereby determining the pitch of the sound.

It is measured in cycles per second because frequency quantifies the number of complete cycles (such as waves, vibrations, etc.) passing a point in one second. This unit is universally used across various fields such as telecommunications, music, and electrical engineering to describe oscillations of waves, and it's crucial for understanding concepts like sound and electromagnetic radiation.