Week 5: Waves I
Chapter 17
Facts you may need for the Quiz:
The terms and jargon. (i.e. wavelength, frequency).
The realtionship between wavelenght, frequency, and speed.
The difference between a standing wave and a traveling wave.
Do NOT worry about phasors. They are not that useful.
Concept-tests:
5.1 Move a line
5.2 Wave pulse carries
5.3 Wave Speed
5.4 Adding Sine Waves--superposition look at Fig 17-11 in
book
5.5 Length of Guitar String
Answers to
Concept Tests
Demos:
SLINKY--A long coiled metal "string", used to demonstrate both
traveling waves and standing waves. As the tension is increased the
speed of the traveling waves increases. For standing waves both an
increase in tension and a decrease in length lead to a higher frequency
fundamental mode.
Sonometer--like a guitar string. Change length and tension to change frequency.
Fourier Synthesizer--interference and Fourier decomposition.
Links: