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Wave Speed
Next Generation: MS.PS4.1

Wave Speed

Author: Nathan Lampson

This lesson will show how to calculate wavelength and determine wave speed.

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The wavelength of a wave can be calculated by dividing the speed of a wave by its frequency.


wavelength = speed (m/s) / frequency (hz)


If a wave is traveling at 990 m/s at a frequency of 110 hz, what is its wavelength?


speed = 990m/s

frequency = 110hz


wavelength = 990m/s / 110hz

wavelength = 9m


The speed of a wave can be calculated by dividing the waves wavelength by its frequency.  The wavelength of a wave is the distance from peak to peak.  The frequency of a wave is the number of waves pass a given point in a set amount of time.


wave speed (m/s) = wavelength (m) / frequency (hz)


If a wave has a wavelength of 9m and a frequency of 50hz, what is its speed?


wavelength = 9m

frequency = 50hz


wave speed (m/s) = 9m / 50hz

wave speed = 0.18 m/s


The wave has a speed of 0.18 m/s.

Wave Speed