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Homework Help: Possible sources of error/uncertainty in bifilar pendulum?

  1. Dec 20, 2014 #1
    in my AH physics investigation - measuring acceleration due to gravity, I used the bifilar suspension pendulum btw a light gate was used

    for the errors/problems section so far I have problems in making the rod level and keeping the two strings parallel, also all the random, calibration and scale reading uncertainties have been mentioned

    I cant think of anything else??

    trying to do my advanced higher bio investigation and woodwork project at the same time so need to get this done

    thanks very much in advance :D
  2. jcsd
  3. Dec 20, 2014 #2


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    Gold Member

    You probably made some small angle assumptions. Those are strictly valid only for very small angles, so for angles large enough to measure easily, that is another error source.
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