C4 practical: Speed of sound (drinking straw) Geogebra
In this exercise GeoGebra will be used to simulate standing waves in a closed pipe. When you blow across the opening of a pipe sound waves travel towards the end and are reflected, the reflected wave superposes with the original wave to give a standing wave. Now the air the end of the pipe can't move so this limits the possible standing waves to those with a node at the closed end resulting in the harmonics that you...