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What is frequency measured in?

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Quick Answer

The most common unit used to measure frequency is hertz (Hz), which refers to cycles per second; however, there are some other ways to measure frequency, such as revolutions per minute (RPM) for a motor or beats per minute (BPM) for a person's heartbeat. Frequency refers to how often an event occurs in a specific time frame, such as a minute or second.

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Full Answer

In communications and physics, a person can calculate a wave's frequency to tell how many waves pass by a specific point in a second or hour. One cycle of the repeating movement is referred to as a period. Some other things that have a frequency that can be measured include radio and TV waves, which are often measured in kilohertz (which stands for 1,000 cycles per second) or megahertz (which stands for 1 million cycles per second).

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