Lab 6: Introduction to Sound

Lab Purpose:
     Become acquainted with sound waves through the use of a LabPro and a microphone.

Part 1: Experiment

     We merely took a LabPro connected it to a microphone and said AAAAAAA for a couple of
     seconds.

Questions:
     a. The wave is periodic as it can be seen repeating after a certain amount of time
     b. 5 waves are shown, we determined this by counting the number of peaks
     c. The time for a single frame in most movies.
     d. The period of the wave is .006 s
     e. Frequency is 166 Hz
     f. Wavelength is 2.04 m.
     g. Amplitude was not determined, though it might be possible to find the amplitude through
     determining the low to high value and dividing by two.
     h. The graph should not be much different, as because it maintains a consistent periodicity
     the overall graph should still be similar albeit much more densely packed.

     When a different person voiced over the microphone, the only real change was a difference in
      amplitude.

Here is a graph of the sound wave produced by a tuning fork, done by Prof. Mason. As can be noted, the graph is much smoother and more consistent than the one produced by our voice.

Graphs for a second sample where the sound is not as loud was not taken, but it can easily be extrapolated that the amplitude would decrease as it directly determines the power.