cycle per second
Definition
- Noun:
- The unit of frequency: "cycle per second" is a unit of measurement for frequency, specifically meaning one complete repetition of a periodic event occurring every second. It is synonymous with the hertz (Hz).
Usage
- The term "cycle per second" is used to quantify how often a repeating event happens within one second.
- It is a technical term primarily used in physics, engineering, and electronics to describe frequencies of waves, oscillations, or alternating currents.
- In modern scientific contexts, the term "hertz" (Hz) is the standard and preferred unit.
Examples
- Noun:
- The alternating current in many countries has a frequency of 50 cycles per second.
- A sound wave with a frequency of 440 cycles per second corresponds to the musical note A above middle C.
Advanced Usage
- Historical Context: The term "cycle per second" was the original unit for frequency before the International System of Units (SI) adopted "hertz" (Hz) in 1960 in honor of the physicist Heinrich Hertz.
- Formal Equivalence: One cycle per second is exactly equal to one hertz (1 cps = 1 Hz).
Variants and Related Words
- Hertz (Hz): The modern SI unit for frequency, directly equivalent to one cycle per second.
- Frequency: The rate at which a periodic event occurs, measured in cycles per second/hertz.
- Kilohertz (kHz): One thousand cycles per second.
- Megahertz (MHz): One million cycles per second.
Synonyms
- Hertz (Hz): The standard synonym.
- cps: A common abbreviation for "cycles per second".
Notes
- While "cycle per second" and "hertz" are numerically identical, "hertz" is the formally correct term in scientific and technical writing.
- The abbreviation "cps" is still encountered in some older documents or specific technical fields.
Noun
-
the unit of frequency; one hertz has a periodic interval of one second
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