Prep for Tuesday's Exam!

Hello everyone,

A reminder that our first exam will be on Tuesday. 6th period will be multiple choice, no calculator, and 7th period will be the free response section.

Here are the solutions to the class projectile motion problems:
















Substituting into this formula, sin(2*theta) = 0.216, so 2*theta = 12.47 degrees, theta = 6.237 degrees.










Also, here are some projectile motion web toys, good for making up projectile motion problems and seeing the solutions.
http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true
http://galileoandeinstein.physics.virginia.edu/more_stuff/Applets/ProjectileMotion/jarapplet.html

And finally, the website for our textbook. This is GREAT for checking your understanding of concepts for each chapter. Select a chapter, and try the Physlets link on the left hand side for some great review questions.

Please email me if you have any questions.

Graphical Kinematics goodness

Hi folks,

A few goodies related to the course:

First, here are the correct answers to the questions regarding the nine graphs on the third page of the handout.

Constant velocity: Graphs a, f, i
Non-constant velocity: Graphs b, c, d, e, g, h
Velocity changes direction: Graphs c, d
Non-constant acceleration: Graphs b, c, g

The only graphs that COULD describe the same motion are a, f, and i, but this would require that graph f show a negative velocity. Consequently none of the graphs could describe the same motion.

Here are the graphs that correspond with the descriptions on the second page of the handout:

1. Football:







2. Rolling Ball:







3. Elevator:






4. Bicyclist:






5. Roller skater:






Finally, check out the simulation site below and click on 'One Dimensional Constant Acceleration.' Play around with the settings and predict what the graphs should look like. Try the self test and see how you do.

http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true


Have a nice weekend!