How is a hertz defined?

A hertz is defined as one cycle per second. This unit of measurement is used to quantify frequency, indicating how many times a repetitive event occurs in one second. In various applications, such as in electronics and sound, expressing frequency in hertz allows for a clear and standardized way to communicate and analyze oscillations, waves, and cycles, such as the periodic vibrations of sound or electromagnetic waves. Understanding this definition is crucial as it lays the foundation for interpreting various scientific and technical concepts related to frequency.