Thursday, Sept 10, 2009 - Block 1A/4A

Homework due next class (Monday Sept 14)
. Return Parent Notification Form (10 Points)
. Return Course Expectation From (5 Points)
. Bring covered textbook (10 Points) (good "structural" cover, not taped to book)
. Tell parents about something interesting you learned in class today
. Quia exercises on significant figures, rounding, Pythagorean Theorem

Quiz next class on Class Policies

Students signed in seating chart
Student Profiles
Get Textbooks - need to be covered
Teacher Introduction
Give out Quia user names and passwords.

Go over Course Expectation Form
Magic Jar Demo
Brief room tour - showed fire drill location

Demo of grape diamagnetism - mentioned YouTube of levitating frog
Balloon skewers
Penny in balloon (concept of inertia), hex nut in balloon (pitch of sound depends on frequency)
Demo of Polarizers and protractors
Picket fence model of polarizers
traverse vs longitudinal waves
Speed of sound in air using lightning flash/thunder and counting - Thunder Tube
Seismic line of Baltimore Canyon
calculate depth of water for given time
Model of transmission of sound wave - why sound faster in water than in air
Model of transmission of light wave - why light slower in water than in air
Max speed is speed of light in vacuum - Epstein model, there is only one speed. Einstein - space and time are all coordinates. If you use your speed to travel through space you do not have as much speed left to travel through time.
Forgot about spaghettification as you approach a Black Hole in 1A but did mention it in 4A