Sound Waves

Statement of Purpose
To analyze the properties of sound as a mechanical wave.

Procedure
Create a sound wave with voice. Then create a sound wave with a tuning fork.

Data

1. Leon sings "aaaaaah", consequently generating pressure variations in the air.

2.  Janice's attempt ranged between arbitrary values of -1 and 1.

3. Attempt with tuning fork.

 

4. When tapped softer than in part 3. the amplitude and the frequency diminishes.

4 waves +- 1
ave. frequency = 4/0.02 = 200Hz
max. frequency = 5/0.02 = 250Hz
min frequency = 3/0.02 = 150Hz

Conclusion

An observation is that in part 4, the frequency of the tuning fork diminishes when tapped softer than part 3. This is interesting because the fork should display similar frequencies as in part 3 since it is a tuning fork, the expectation is that the frequency that it generates should be constant. However, the frequency in this sample within uncertainty values with a maximum frequency of 250Hz affirming the 250Hz value in part 3.