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Sound speed = ultrasound speed?

  1. Feb 21, 2012 #1
    Hi, I'm doing a lab report and I need to know if ultrasound speed in the air is the same of sound speed in the air.
    Thank you
  2. jcsd
  3. Feb 21, 2012 #2


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    Ultrasound is just sound with a very high frequency such that we can't hear it. Therefore, yes, it is identical to any other form of sound, including its speed in air.
  4. Feb 21, 2012 #3


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    Staff: Mentor

    Lookes like boneh3ad is right: http://hyperphysics.phy-astr.gsu.edu/hbase/sound/souspe.html

  5. Feb 21, 2012 #4
    Speed of sound is very nearly independent of frequency, but not quite, (see A B Wood, A Textbook of Sound (Bell, London, 1946))

    For your purposes I doubt it would make a difference. However for low pressures it might.
  6. Feb 21, 2012 #5
    Thank you very much ;)
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