I have a question about conservation of energy... So, I have a question about conservation of energy. I just want a detailed example of the path of the energy in some regular scenarios and the reach of it. For example... When playing pool, the cue ball is shot at a stationary 8 ball. The cue ball now has kinetic energy. When the cue ball hits the 8 ball, the kinetic energy transfers from the cue ball to the 8 ball, sending the 8 ball into motion. The cue ball loses energy because the energy it had has been transferred to the 8 ball, so the cue ball slows down. So, now the 8 ball is in motion and then it hit a wall from the pool table and it stops. What happened to that energy? I mean, I often see examples showing a simple transition. Can you please describe more energy transitions in that example... let's say... 10? EDIT: Sorry for my English... not my primary language.