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May 13, 2024 · Learn about frequency, the number of waves or cycles per unit time, and how it relates to periodic motion, interference, and spectroscopy. Find out the symbols, units, and examples of frequency in physics.
- The Editors of Encyclopaedia Britannica
Learn the meaning of frequency as a noun, with synonyms, examples, word history, and related phrases. Find out how frequency is used in different fields such as physics, statistics, and medicine.
May 3, 2019 · Learn what frequency means in science, especially in physics and chemistry, where it applies to waves. Find out how to measure frequency in Hertz and see examples of frequency in different contexts.
- Anne Marie Helmenstine, Ph.D.
frequency. In physics, the number of crests of a wave that move past a given point in a given unit of time. The most common unit of frequency is the hertz ( Hz ), corresponding to one crest per second. The frequency of a wave can be calculated by dividing the speed of the wave by the wavelength.
Learn the meaning of frequency as a noun in English, with examples of how to use it in different contexts. Find out how to pronounce frequency and see its synonyms, collocations and translations.
Frequency—number of events per unit of time. Period—time it takes to complete one oscillation. For waves, these variables have the same basic meaning. However, it is helpful to word the definitions in a more specific way that applies directly to waves: Amplitude—distance between the resting position and the maximum displacement of the wave.