Physics 4-10-12 Sound Intensity and Resonance

PHYSICS: Hey guys, how in the world do you lose a lecture? Well, I can’t seem to find where I saved today’s lecture, so here’s a blast from the past on sound intensity and resonance.

Couple of items to apply from today’s discussion – so how does the whole hearing thing work? I mean, I know the little bones in your ear move, but why? Is resonance involved? Great item for application/discussion. And here’s another – why would different violins produce different sounds? I mean, is a Stradavarius valued so highly just because of the name? Let’s talk more about that!

Hon Chemistry 2-24-12 Molecular Geometry

HON CHEMISTRY – Who knew we’d be doing geometry in chemistry?!? Here’s the lecture on molecular geometry, with a little practice at the beginning on polyatomic ions and resonance. Molecular geometry is super easy. Make sure you know how to draw Lewis structures, then determine the type of ABE structure and you’ve got it. Easy-peazy!


flickr photo by Ron Layters

Hon Chemistry 2-23-12 Multiple Bonds, Resonance & Polyatomic Ions

HON CHEMISTRY: Hey guys, great job with Lewis structures, multiple bonds, resonance, and polyatomic ions today. Wow, that was a lot! Here’s some good advice – don’t take shortcuts. Learn the proper steps on the easier molecules, and you’ll be able to do the hard ones. And if it’s still all Greek to you, don’t worry! Keep practicing and you’ll get it, I promise!! Don’t forget to count electrons and don’t forget CONS!

Physics 4-7-11 Sound Intensity and Resonance

PHYSICS: Hey guys, here’s the lecture from Thursday on sound intensity and resonance. Couple of items for discussion – so how does the whole hearing thing work? I mean, I know the little bones in your ear move, but why? Is resonance involved? Great item for discussion. And here’s another – why would different violins produce different sounds? I mean, is a Stradavarius valued so highly just because of the name? Let’s talk more about it Monday. Have a great time with the video tomorrow!