Hertz
From Wikipedia, the free encyclopedia
| Unit | Equal to: |
|---|---|
| Kilohertz | 1000 Hz |
| Megahertz | 1000 kHz |
| Gigahertz | 1000 MHz |
| Terahertz | 1000 GHz |
| Petahertz | 1000 THz |
| Exahertz | 1000 PHz |
| Zettahertz | 1000 EHz |
| Yottahertz | 1000 ZHz |
The hertz (symbol: Hz) is a unit to measure frequency. It tells how often something happens. A frequency of 1 hertz means that something happens once a second. The pitch of the note Middle C (the C in the middle of the piano) is 262 Hz. This means there are 262 vibrations every second when a Middle C is played.
The unit is named after Heinrich Rudolf Hertz.
[change] Bigger units
1000 hertz equals 1 kilohertz. 1000 kilohertz equals 1 megahertz, 1000 megahertz equals 1 gigahertz and so on
[change] Examples
- The frequency of the Earth's spinning (once per ~24 hours) is about 12 microhertz.
