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Practice Representing Systems and Change
For each of the following problems, choose your system so that energy is conserved but do not place
anything in the system other than those elements which are essential to include energy conservation.
a. Specify the system, then draw a system schema.
b. Add a written description of the changes represented.
c. Construct Energy Bar Charts for the initial and final states of your system. Be sure to label the
“L's” in your charts and complete the energy-flow diagram
1. A student lifts some books from the bottom of his locker.
a. System Schema:

Aweather forecaster uses doppler radar to predict the track of a storm near the town of meadowlands. when the doppler signal is pointed at the storm from the town's center, the frequencies of the waves appear to be decreasing. what should the weather forecaster predict? a. that the storm will move around the edges of meadowlands without hitting the tosis center o b. that residents should be prepared, because it is impossible to know whether the storm will hit o c. that the storm is moving toward meadowlands and that residents should be prepared d. that the storm is moving away from meadowlands and is not likely to hit the town