So, i have had this dilemma for a while now. I am trying to reform my curriculum (high school physics). In doing so, one question keeps popping up. What makes mechanics mechanics? A simple google search yields definitions as the branch of physics dealing with motion, or dealing with objects subject to forces, or the behavior of objects under any effects. Clearly these are too broad. Motion is perhaps the one unifying phenomenon studied in physics. Is mechanics synonymous with physics?