Friday, Feb 1, 2008

Went around room asking what students told parents about Textbook Scavenger Hunt.
Demo with slinky modeling light as a transverse wave:
High frequency = high energy = short wavelength
Low frequency = low energy = long lazy wavelength
Spectrum of visible light given by ROY G BIV
Purple tie days are high energy days => Violet light photons are higher energy than red photons.

Fermi number calculation of number of stars in the Milky Way galaxy assuming galaxy is a rectangular slab 100,000 LY x 100,000 LY x 1000 LY and stars are evenly spaced at 4 LY apart (distance from our Sun to nearest star).

What is Physics? brainstorm
You Can't Say the Rule

Elements of a good graph handout
Measurement and Graphing of Round Objects Lab

HW: Students finish calculations and make graph using all the elements of a good graph.