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# Waves

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### Waves

1. 1. PHYS 101Ms. Crow
2. 2. We see waves in the ocean…
3. 3. …in lakes and puddles as ripples…
4. 4. …as sound waves…
5. 5. …even light can be a wave!
6. 6. Types of Waves Longitudinal  The displacement of particles is parallel to the direction of the wave.  Sound waves that travel through the air are longitudinal  Imagine the coils in a slinky as they spring from one end to the other
7. 7. Types of Waves Transverse  The displacement of particles is perpendicular to the direction of the wave.  Ripples on a pond are longitudinal waves.  Imagine the motion of a sting on an instrument as it is plucked.
8. 8. A Special Thanks to: http://www.google.com/imgres?um=1&hl=en&client=firefox- a&sa=N&rls=org.mozilla:en- US:official&biw=1366&bih=664&tbm=isch&tbnid=2hTGOrURkUk5dM:&imgre furl=http://cloudcomputing.sys- con.com/node/1989508&docid=KmnogsyAoZqu8M&imgurl=http://res.sys- con.com/story/sep11/1989508/Waves%252520468.jpg&w=468&h=326&ei=7zST T5y2LaLH6QGZhI2nBA&zoom=1&iact=hc&vpx=913&vpy=189&dur=2747&hovh =187&hovw=269&tx=161&ty=131&sig=109792336457295440355&page=1&tbnh=13 4&tbnw=168&start=0&ndsp=18&ved=1t:429,r:4,s:0,i:144 http://www.google.com/imgres?um=1&hl=en&client=firefox- a&sa=X&rls=org.mozilla:en- US:official&biw=1366&bih=664&tbm=isch&tbnid=LrTh7FtuSx7eKM:&imgrefur l=http://www.privateline.com/TelephoneHistory/soundwaves.html&docid=lW WALKqE3v9gMM&imgurl=http://www.privateline.com/TelephoneHistory/spe ech.jpg&w=450&h=349&ei=LDWTT8_xFMOf6QH8qOiKBA&zoom=1&iact=hc &vpx=908&vpy=353&dur=420&hovh=198&hovw=255&tx=131&ty=119&sig=10979 2336457295440355&page=1&tbnh=132&tbnw=176&start=0&ndsp=19&ved=1t:429 ,r:17,s:0,i:170
9. 9. A Special Thanks to: https://encrypted- tbn0.google.com/images?q=tbn:ANd9GcTXnF5aGTg6 iH0qxJ7AWHchGXRCxelFHD5CXRbT9JjI57KDIXoNg A https://encrypted- tbn0.google.com/images?q=tbn:ANd9GcRquamiDz6a wU6zaXv_CJ_DyOD_1JFOpBxzRXGQ0Xh2iS_0shZfx WDbpHmI http://hyperphysics.phy- astr.gsu.edu/hbase/sound/tralon.html