1. The problem statement, all variables and given/known data I have a brick of mass m in my hand. I move the brick vertically up h meters. 2. Relevant equations What is the Work done to the brick by gravity? 3. The attempt at a solution Work = Fd The F for my hand on the brick is mg going up and d is h so the work done by my hand to the brick is mgh upward. But now what is the work done by gravity? This concept is still blurry to me. Is Wgravity=mgh downward?