Friday, Jan 22, 2010

Quiz on Standing Waves

Students finished work on labs: Waves on a string, waves in a pipe, and Tones and Telephones. Lab write-ups are due on Tuesday.

For Waves on a String I'm looking for computer generated graphs showing linear trends with slopes and uncertainties in slopes where possible. Students will make graphs of frequency vs # of segments and also show a linear graph relating tension and velocity.
Data: mass (g) velocity (m/s)
250 33.3
350 37.5, 39.55
450 45.7
550 48.72
As a hint, also asked students to calculate the mass per unit length of the string.

For Waves in a Pipe lab, I want a graph of depths vs resonance number

For Tones and Telephones, I just need the results of the telephone signals

Handed out RA 28.1, RA 28.2 also due Tuesday