A method for keeping track of transformations between kinetic energy and gravitational potential energy, introduced in this chapter, is:

A. Credit-debit tablesB. Kinetic energy-versus-time graphsC. Energy bar chartsD. Energy conservation poolsE. Energy spreadsheet

The correct answer is letter "C": Energy bar charts.

Explanation:

Energy bar charts show the amount of energy an object absorbs through a vertical line. The bar length is indicative of the present amount of energy, with a longer bar reflecting a lower amount of energy. Energy bar charts can relate transformations between kinetic energy and gravitational potential energy, for instance, when an object is dropped. We can differentiate the kinetic energy before letting the object go (gravitational energy) and once it reaches the ground (kinetic energy).