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Sonic boom

"Sonic Boom"

 

Objectives:

The objective of this experiment is to explore the pressure changes that occur when a piston is pulled out of a small syringe and to explain the properties of the sound pulse.

Christian Johann Doppler (1803 - 1863) was a Austrian physicist and mathematician who is most often remembered for his discovery of the Doppler effect, which is central to modern conceptions of sound and light. His earliest work concerned mathematics, but in 1842 Doppler completed and published the paper On the Colored Light of Double Stars and Certain Other Stars of the Heavens. Within the work, he proposed that observed frequency of light and sound waves is dependent upon how fast the source and observer are moving relative to each other, a phenomenon commonly referred to as the Doppler effect. He also correctly predicted that his theory would some day be utilized by astronomers to more accurately measure the movements and distances of stars. Most notably, the motions of stars detected through this manner led to the development of the big bang theory of the universe.

Materials:

Pressure sensor, CBL, TI83/84 and a small syringe (20 ml).


Data acquisition  |  Data sample  |  Data analysis (TI83)  |  Data analysis (MSExcel)  |  PDF version of the module  |  Evaluation form  |  Back to Experiments  ]



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