![]() ![]() If the period, or time interval, required to complete one cycle or vibration is 1/ 2 second, the frequency is 2 per second if the period is 1/ 100 of an hour, the frequency is 100 per hour. See also angular velocity simple harmonic motion. A body in periodic motion is said to have undergone one cycle or one vibration after passing through a series of events or positions and returning to its original state. In spectroscopy, another unit of frequency that is sometimes used is the wavenumber, the number of waves in a unit of distance.įrequency, in physics, the number of waves that pass a fixed point in unit time also, the number of cycles or vibrations undergone during one unit of time by a body in periodic motion. One kilohertz (kHz) is 1,000 Hz, and one megahertz (MHz) is 1,000,000 Hz. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!įrequency is usually expressed in the hertz unit, abbreviated Hz.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more. ![]()
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