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Homework Help: Finding the damping constant from SHM

  1. Feb 25, 2010 #1
    1. The problem statement, all variables and given/known data
    I doing a investigation coursework at the moment for physics A2. I am investigating how the viscosity of oil is affected by the temperature. I am attemping to prove the viscosity decreasing by showing that the damping constant decreases.

    I have attached a excel workbook with 2 sets of temperatures as a sample.
    2. Relevant equations

    Is there an easier way to do this using my data?
    Is the LOGEST function giving me the damping constant?

    3. The attempt at a solution

    I have bascially taken the maximum and min points from my SHM graph that i obtained from my datalogger. I took the position it started at as a zero line, to find the true displacements. THis gives me an exponential decay graph as expected.

    I have used the excel fuction called LOGEST to find the regression, however i am not sure where to go from here and wether it is even correct.
     

    Attached Files:

  2. jcsd
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