This is the basic Wiki definition of angular momentum. I was wondering if someone "perhapse a teacher" could put this into words I understand. I know that this can be translated into a more understandable words. I firmly ask that you do not tell me to wait until I go to college to study this. I know that I can learn it if I try, and ask enough questions. Lastly, i'm sorry for my spelling errors. I usually use my cell phone which has spell check. I currently am on my computer though. Please excuse my spelling. Love, Eraniamayomii EDIT: I'm sorry. Please let me explain what I know about angular momentum. I know that angular momentum is what makes a ice scater spin faster as she brings her arms in and gets lower to the ground. I know that as a star or planetoid becomes more dense, it gains speed, and as it explands, it loses speed. I also know that the our solar system has slowed down the rotation of the sun due to angular momentum.