Prior to conducting the module, the students must:
Be able to formulate hypotheses from observations. Have a basic understanding of the effect of unbalanced forces to speed up, slow down, or change the direction of motion of an object. Have had a variety of qualitative experiences with motion, friction, kinetic and potential energy, and observing and graphing distance vs. time. Understand the relationship between distance and time for a ball rolling down an incline. Understand the four basic components of STELLA and how to graph the results from running a STELLA model.
Classroom Equipment/Supplies:
Contain at least one computer capable of running STELLA. Materials for ramp construction or ramp. Meter sticks, photo gates with appropriate software, empty soup can, plumb line (if available), 1/2 inch or larger marble or steel ball, .
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