C4 practical: Drinking straw waves
In this experiment the programme “Audacity” will be used to measure the frequency of the standing wave produced when air is blown through a drinking straw. The data collected will then be processed in excel and a graph plotted such that the velocity of sound can be found. The normal way to make a drinking straw instrument is to cut a flattened end into a point. When blown through the points vibrate like the reed of a...