Easy sound/waves physics questions?

I was sick with Chicken Pox and I missed 4 days of school...

On top of all my AP catchup crap, I have to learn all this stuff from the class rubric.

Can somebody type up a quick lesson over this stuff? I'd really appreciate it! Then I could go back and teach myself for the makeup test Monday morning tonight after I'm done studying history, Psychology, and Calc.... =/

This looks like it's pretty simple stuff, I'm just too strained for time to google all of it individually and then learn it that way.

 Use position vs time graphs to

determine amplitude, frequency,

period, and velocity of a wave.

 Compare relative amplitudes,

frequencies, and wavelengths

for transverse waves when given

two waveforms.

 Distinguish between

constructive and destructive

interference, and predict

resulting wave behavior.

 Interpret the role of interference

in the production of standing

waves and beats.

 Investigate, predict, and analyze

how wave behavior changes at

medium boundaries.