This week is the last physics 50 lab of the semester.� If you haven't already done so make sure to administer SOLATES and to collect the name of the lecturer for each student.�
This lab is on the speed of sound.� Students measure the length of a pipe that allows standing waves to resonate for a given frequency audio signal.� Using these lengths they compute the wavelength of the sound and combined with the known frequency of the audio source determine the speed of sound in air (approximately 344 m/s).� They probably have not covered standing waves in class yet, so you should give a bit of background on standing waves and resonance.� The attached slide is available on transparency in both lab rooms and may be helpful for this explanation.