Tuning Fork Lab:
In this lab, we graphed the frequency of the tuning fork by hitting it under our shoe and putting the microphone(attached to lab quest) close to the tuning fork to record the "ringing" noise it makes. Once we recorded that(analyzed-fft) we got the graph above. As you can see, the graphs are evenly spaced out which helps us figure out which harmonic it is in(7th harmonic). This graph means:
- multiple harmonics-evenly spaced-multiples of 1st frequency
- different heights of graphs-louder, more dominant
- blend harmonics
Palm Pipe Lab:
In this lab everyone was given a pipe(different sizes) and we were each expected to figure out what note the pipe hits. In order to figure this out we had to first measure the length of the pipe and the diameter. With these measurements we are now able to first solve for wavelength and then the frequency. Once we figured out the frequency we now can find which note it hits by typing in the frequency in Wolfram Alpha. After everyone had figured out what note they got, we played "Twinkle Twinkle Little Star" with our Palm Pipe.
