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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:

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.