1. OBJ: Given lab SWBAT determine the variables (mass. , size
OBJ: Given lab SWBAT determine the variables (mass?, size?, ramp height?) that effect the distance a ball is able to move a stationary cup with 70% accuracy. DN: Complete Ball & Ramp Lab write-up ACT: Complete Ball & Ramp Lab write-up Complete BRL Lab Quiz (Q:1-14, scantron) HW: Finish Lab write-up and complete BRL Lab Quiz scantron (Q:1-14, due tomorrow), Energy Exam, Tuesday, Jan 6. Midterm Prep Quiz #1 and Environment Quiz, week of Jan 5. SVQ3 Quiz and Midterm Prep Quiz #2 week of Jan 12, Interim Exam, Jan 22?

2. STOP THE GAB
AND FINISH THE
LAB !!!!!

3. Construct a Line Graph 0 1 2 3 Distance Cup Moved (cm)90 80 70 60 50 40 30 20 10
Construct a Line Graph
Distance Cup Moved (cm)
Ramp Height (number of books)

4. Remember BALL #1 BALL #2 BALL #3
Small Metal Large Styrofoam Small Styrofoam
heavy weight (mass) light mass light mass
more mass less mass less mass

5. Remember P.E.= weight (mass) x height K.E. = ½ mass x velocity²
max. potential energy
kinetic energy = 0
mass
Work done
decreasing potential energy; increasing
kinetic energy
mass
height
potential energy = 0
max. kinetic energy
Work = Force x Distance