Chemistry 2-1-17 Photoelectric Effect & Wave Problems

CHEMISTRY: Fun field trip today!! Good job coming up with examples of the photoelectric effect. What? There really aren’t tiny people living in boxes above the doors at Wal-mart? And I just thought of another one, what about those automatic flush toilets!

What did you think about the energy problems? Again, make sure you not only memorize formulas, but also be careful to learn the symbols and units for each of the quantities you’re going to use, it’s easy to get them confused!

Need practice? Help session tomorrow morning (Thursday), 7:20ish A.M.

Chemistry 2-1-17 Photoelectric Effect & Wave Problems from Tammy Skinner on Vimeo.

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Physics 2-1-17 Stability & Torque Problems Review

PHYSICS: Ohhhhhhh, so that’s how that trapeze guy stays up there! Wait – what’s the pole for?? Great opportunities for discussion and application!?!

Here’s the discussion on how stability relates to center of mass. At the end, a couple of torque problems from the homework, Torque Worksheet 1.

Physics 2-1-17 Stability & Torque Problems Review from Tammy Skinner on Vimeo.