Hertz is a unit of measurement that is used to measure the frequency of sound waves and electromagnetic waves. It is named after the German physicist Heinrich Rudolf Hertz, who was the first person to prove the existence of electromagnetic waves. The hertz has become a standard unit of measurement in many fields, including radio, acoustics, and electronics.
The hertz can be abbreviated as “Hz,” and one hertz equals one cycle per second. The frequency of a wave is measured in hertz, and it represents how often the wave repeats itself over time. For example, if a sound wave has a frequency of 20 Hz, that means it repeats twenty times per second.
Electromagnetic waves are also measured in hertz. These are types of energy that travel through the air at the speed of light (186,000 miles per second).
Radio waves are a type of electromagnetic wave, and they can have frequencies ranging from 3 kHz (Kilohertz) to 300 GHz (Gigahertz).