C4 practical: Speed of sound (drinking straw)
In this practical the speed of sound will be measured by analysing the standing wave in a drinking straw using a computer program called Audacity. This can be downloaded free from sourceforge. If you don't have Audacity on your computer download and install it then make sure it works by recording a sound either using your computers in-built microphone or a headset. When the air in an open pipe is excited by blowing...