Wacky Wednesday

Well, not really, but something's gotta liven up the middle of the week...

C and F Blocks had the period to work on corrections for their vibrations and waves exam. Most folks will likely want to get their corrections completed before we take off for winter vacation. If you need to turn them in after break, that's fine, but make sure that you don't forget them! Tomorrow, C Block picks up with speed of sound and F Block picks up with forced vibrations and resonance.

B Block began their discussion of sound today after going over yesterday's lab that allowed them to view pure tones, overtones and qualities of voice on the computer. We reminded ourselves that sound was a longitudinal, mechanical wave and that the basic definitions we went over last chapter (frequency, period, amplitude, etc.) were still relevant to this chapter's discussion. we looked at the hearing and vocalization ranges of a number of organisms and looked at the use of ultrasonic waves in echolocation and imaging. Tomorrow - speed of sound and ways to represent sound waves.

E Block had only 5 very sleepy students present due to the peer mentor training that drained the class and, after discussing forced vibrations and resonance (with video!), I called it quits and put the covers over their cages so they could quietly nap. Tomorrow, we pick up with harmonics and how they present themselves for stringed and wind instruments.