1. The problem statement, all variables and given/known data What is the distinction between energy imparted and energy transferred? Both impart and transfer is translated to the same word in Swedish, so I'm rather confused. The context in which the two are mentioned (the Compton effect) doesn't make it any clearer either, at least not to me. 2. Relevant equations - 3. The attempt at a solution I can't make an attempt at a solution to any problem until I get the basics straight.