the medium determines the speed

This is the "moral" of the activities that we are doing.
We are examining the relationship between velocity, frequency, and wavlength.
The speed does not depend on the frequency.
The speed does not depend on the wavelength.
The speed only depends on the material.
So if you change the material (different spring, different tension) the speed will change.
If you increase the frequency (shake your hand faster) it does NOT change the speed.
What it DOES do, is decrease the wavelength.

Class today was a little disombobulated because of the modified schedule for class meetings.
Hope you enjoyed them. During class we worked on finishing up the lab, and talked a little about "nodes" and "anti-nodes".



Wed/Thurs during block we'll work more on wave interactions. Interference and standing waves. We'll look at water waves, listen to sound waves, and see some computer generated waves.


Here's another great website that shows lots of the stuff we've been working on:
http://id.mind.net/~zona/mstm/physics/waves/waves.html