frequency is the term used to describe how often something happens in a given amount of time. sound frequencies are measured in Hertz abbreviated as Hz which describes how many times the sound wave vibrates every second. For example Middle C in music is measured as approximately 262 Hz. That is the frequency that the note of Middle C vibrates at every second. But frequency does not only refer to sound. Waves on the beach have a frequency that can be measured, as do many other things. Anything that happens over and over with regular timing has a frequency.
Frequency is how often something happens.
Gamma Rays
frequencey
A frequency diagram.
To measure sounds frequency you have to do a sound test.
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The hertz (Hz) is commonly used. Its dimensions are 1/second.
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Frequency = (speed)/(wavelength) = 10/20 = 1/2
The Doppler effect is a change of the frequencey of a wave, due to relative movement between source and observer.
Rechargable battery life willd epend on the device in which they are used and the frequencey in which they are charged.