Sites from class today; HW at bottom

Anna-Maria

https://www.youtube.com/watch?v=vC9Qh709gas

https://www.youtube.com/watch?v=UHTF1-IhuC0&feature=iv&src_vid=vC9Qh709gas&annotation_id=annotation_1970696487

https://www.youtube.com/watch?v=WlDi2XpK_dQ


Shattering wineglass

https://www.youtube.com/watch?v=cPALfz-6pnQ


Ruben's tube (from me)

https://www.youtube.com/watch?v=cqilJNsiqig


Longitudinal vs. transverse waves

http://www.animatedscience.co.uk/blog/wp-content/uploads/focus_waves/tl-wave.html

Animated:

http://www.acs.psu.edu/drussell/Demos/waves/wavemotion.html

http://www.acs.psu.edu/drussell/Demos/rad2/mdq.html


Wave forms in tubes

http://www.acs.psu.edu/drussell/Demos/StandingWaves/StandingWaves.html


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Practice problems:

Consider the musical note G, 392 Hz.  Find the following:

1.  The frequencies of the next two G's, one and two octaves above.

2.  The frequency of the G one octave lower than 392 Hz.

3.  The frequency of G#, one semi-tone (piano key or guitar fret) above this G.

4.  The frequency of A#, 3 semi-tones above G.

5.  The wavelength of the 392 Hz sound wave, assuming that the speed of sound is 340 m/s.

6.  What are the differences between longitudinal and transverse waves?  Gives examples of each.  What type of wave is sound?