Thursday, May 23, 2013

Standing Waves in Tubes Lab



Goal: 
To investigate the correlation between the length of a tube in water and how it resonates with different notes

Background information:
Musical instruments use pipes
The length of the pipe determines the pitch or frequency
Each length of pipe has a frequency that matches or resonates.

Materials:
Large graduated cylinder filled 7/8 with water.
PVC pipe
Meter stick
Various tuning forks

Process:
Dip the PVC pipe in the water. Then Hit the fork and hold it next to the pipe. Adjust the pipe up and down until the fork resonates. Measure this lenghth  with a ruler and write it down

Data:
A426.7: 7.5"
G384: 9.25"
E320: 10.75"
D288: 11.75

Conclusion:
We learned that the length of a pipe correlates to the frequency of a note. If the length is just right, the note resonates! This information is vital in understanding how musical instruments work.


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