Specifi cally, in the reasoning,the teacher is looking for the students to discuss potential and kinetic energy,which they had previously discussed in class: Turning the rubber band transformskinetic energy of the winding into stored or potential energy. The stored energy is then transformed into kinetic energy when the rubber band is released. Kinetic energy is energy of movement. The more times the rubber band is turned, the more stored energy there is, which means the more kinetic energy there is.