http://phet.colorado.edu/en/simulation/energy-skate-park Do this simulation.
Link to grade and things - Blackbaud https://46157netclass.blackbaudondemand.com/NetClassroom7/
Practice ch1 test - Also know section 2.4 in your book for the 1st test. (physics verses)
Weight notes - HW about section 2.4 pg55#21-26 and pg56#11-18