Simple and complex machines are created to make Work more efficient and less exhaustive. In this topic, Work, Power, Machines, we explore the world of invention and how Sciences are applied to our everyday lives. Learn the Power that resides in Simple Machines: Pulley and Simple Machines: Levers to understand the complexity with which seemingly effortless tools require critical thinking and application. From Simple Machines to Simple Machines: Wedge/Inclined Plane, you will become proficient in the applications, methods and techniques required in Mechanical Efficiency.