Friday, Feb 15, 2008

Collected RA 2.5
Handed back CD 2.2

Reaction time lab
Students plot graph, drop meter stick, go from distance to graph and down to reaction time. Use the elements of a good graph. Graph is a parabola since d~t^2.

Homework, try out reaction time lab on parent with dollar bill. See if they can make money.

Picket Fence Lab - Introduction to using computers. Students did lab, found slope of straight line on velocity vs time graph. slope = acceleration of gravity.

These are two examples of shapes of graphs of linear motion. d vs t shows a parabola, v vs t shows a straight line.

Did some examples of v vs t graphs: Dropping ball, throwing ball up, bouncing ball.

Collected CD 2.2 for last time.

Homework: Look over problem sheet on linear motion.

Test on Thursday of next week. No school on Monday - President's Day