Optional Practical: Boomwhackers
A boomwhacker is a musical instrument in the form of 6 plastic tubes that if hit against your hand emit a note. The frequency of the note is related to the length of the tube, since they are open at both ends the wavelength of the fundamental will be 2 x length. The frequency of the sound can be measured by recording the sound on your computer then using the program Audacity to analyze the frequency spectrum and...