Thursday, Sept 24, 2009 - 1A, 4A

HW: Finish unit conversion worksheet and compare to answer sheet
Do RA 2.1 for Monday

Skills needed in physics
Expressing large and small numbers using scientific notation and metric prefixes
Metric Prefixes worksheet - done in class

Showed video of Powers of Ten

Fermi number calculations of numbers of stars in Milky Way Galaxy
Express to impress for size of nucleus in atom the size of football field

Went over pitfalls in using a calculator

Unit conversion sheet
Unit conversion problem worksheet - please do before checking answers against answer sheet.
Handed out RA 2.1 due Monday