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- DictionaryFre·quen·cy/ˈfrēkwənsē/
noun
- 1. the rate at which something occurs or is repeated over a particular period of time or in a given sample: "an increase in the frequency of accidents due to increased overtime"
- 2. the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second: "different thicknesses of glass will absorb different frequencies of sound"
T − 1 {\displaystyle {\mathsf {T}}^ {-1}} Frequency (symbol f ), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time. [1] It is also occasionally referred to as temporal frequency for clarity and to distinguish it from spatial frequency. Ordinary frequency is related to angular ...
Mar 7, 2024 · Learn what frequency is in physics, how to measure it, and how to express it in different units. Find out the symbols, formulas, and examples of frequency in waves, cycles, and vibrations.
- The Editors of Encyclopaedia Britannica
- What is frequency in physics?In physics, the term frequency refers to the number of waves that pass a fixed point in unit time. It also describes the number of cycles or vibrat...
- What is the symbol of frequency?The symbols most often used for frequency are f and the Greek letters nu (ν) and omega (ω). Nu is used more often when specifying electromagnetic w...
- How is frequency expressed?Frequency is usually expressed in the hertz unit, abbreviated Hz. One kilohertz (kHz) is 1,000 Hz, and one megahertz (MHz) is 1,000,000 Hz. In spec...
Learn the meaning of frequency as a noun, with synonyms, examples, and word history. Find out how frequency is used in different contexts, such as mathematics, physics, and statistics.
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May 3, 2019 · Frequency is the number of times an event occurs per unit of time, such as light, sound, or radio waves. It is also known as cycles per second or temporal frequency. The SI unit for frequency is the Hertz (Hz). Learn more about frequency in physics, chemistry, and other fields of science.
- Anne Marie Helmenstine, Ph.D.
Learn the definition of frequency as a noun in different contexts, such as happening, light, sound, radio, and media. See how to use frequency in sentences and phrases with synonyms and related words.
Learn how to define and relate the variables of wave frequency, period, wavelength, and velocity. See examples, videos, and a lab activity to explore the effects of energy and amplitude on waves.
Frequency is a rate quantity. Period is a time quantity. Frequency is the cycles/second. Period is the seconds/cycle. As an example of the distinction and the relatedness of frequency and period, consider a woodpecker that drums upon a tree at a periodic rate. If the woodpecker drums upon a tree 2 times in one second, then the frequency is 2 Hz.
