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Calculating Energy in Sound Wave

  1. Nov 22, 2011 #1
    1. The problem statement, all variables and given/known data

    How does the sound energy level produced by woodwind instruments (a piccolo, a clarinet, and a bassoon) compare to the sound energy level produced by string instruments (a violin, a cello, and a double bass) and brass instruments (a trumpet, a trombone, and a tuba)?

    I am doing a group 4 IB physics project in which I attempt to answer the above question.

    I need a straightforward, quick response that will give me an equation to calculate the energy present in the different waves.

    I am using a scope that will allow me to determine the frequency, amplitude, speed, and wavelength of each instruments wave and I need to somehow relate the energy present in the wave to the data I am able to collect.

    2. Relevant equations

    I know that E=1/2kA^2 but my problem with this equation is that I am not sure how I would determine what the value of k is for each wave.

    3. The attempt at a solution

    As mentioned above, I have tried to look into the E=1/2kA^2 equation but am having difficulty with the value of k. I have searched in every spot I could think of to help with this and have returned empty handed. Any guidance in the correct direction would be appreciated.
  2. jcsd
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