The principle of Conservation of Energy states that energy in the Universe is never created or destroyed, it can only be moved around when forces do work on objects. In other words, when ever we observe an object to be gaining energy, it must come from some other object, and if we observe an object losing energy, it must go to some other object. Look back at an example of an object changing its motion that you used in a previous DB assignment. In that example, explain why you know that energy was being gained or loss, and what kind of energy it was. Next, explain either where the energy came from, or where it went.