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Standing waves

Standing waves

Objectives:

The objective of this experiment is to explore the sound pulse that appears when a cardboard tube is struck with an object for example your index finger. What are the characteristics of the sound pulse that appears?

Heinrich Hertz (1847 - 1894), a German physicist, applied Maxwell's theories to the production and reception of radio waves. The unit of frequency of a radio wave - one cycle per second - is named the hertz, in honour of Heinrich Hertz. Hertz proved the existence of radio waves in the late 1880s. He used two rods to serve as a receiver and a spark gap as the receiving antennae. Where the waves were picked up, a spark would jump. Hertz showed in his experiments that these signals possessed all of the properties of electromagnetic waves.

Materials:

Microphone sensor, CBL, TI83/84 and a cardboard tube sealed in one end.


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



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