This document contains homework questions on topics related to work, power, kinetic energy, and potential energy. There are 4 sections with multiple questions in each section: 1) Questions about calculating work done by different forces moving objects different distances. 2) Questions calculating the power of engines or machines doing work over specific time periods. 3) Questions about kinetic energy and how it relates to an object's mass and velocity. 4) A question explaining why a roller coaster speeds up going down a slope using the concepts of potential and kinetic energy.