hz

# Hz

 Stan Zurek, Hz, Encyclopedia-Magnetica.com, {accessed 2020-08-09}

## Definition

Hz or hertz - a unit of frequency, reciprocal of cycle or period.

According to the SI terminology, hertz is a coherent derived unit, because it can be derived from the base unit of second by raising to the power of -1. Hertz can only be applied to periodic phenomena.1)