Here are a variety of work and power problems for students either in pre-algebra or algebra 1; I use these with my freshmen general science and conceptual physics classes. Some problems have multiple parts in order to tie together the Work (W = F*d) and Power (P = W/t) equations with the occasional time unit conversion. I included guidelines for some of the multipart problems to help the students identify which concept was dominant (work or power) in that part of the problem. As with my other problem sets, I aimed for a variety of situations both to hold students' interest and to give them different contexts in which to picture the concept. My students often take anywhere from 15 to 40 minutes on this, depending on their math ability and motivation.