Introduction to Sound

In this experiment we use Labpro and a microphone to connect to a computer. Using tuning forks and a microphone.

Questions:

these waves are periodic, they repeat.
In our sample wave we get 4 waves in .03 seconds

.03 seconds is 33 hz which means 1/33 of a second

the period is .006s, sample time/5

the frequency of the waves are 166 hz

the wavelength assuming speed of sound is 340 m/s
v=f*lambda 340=166.6*lambda, lambda=2.04m

amplitude = 1V, empirically.

if the sample were 10times as long, period would be 1/10 and frequency would be 10x larger. amplitude would not change.

The second graph is very similar to the first because voices share similar sound characteristics.

The tuning fork has very different sound characteristics as it does not share the same peaks as one made by a voice.
A tuning fork played not as loud would have a lower amplitude but similar sound characteristics, frequency, lambda. etc.