An in-depth investigation of forces and motion for middle school and high school readers. The branch of physics that deals with forces and movement is called mechanics. It also includes sections on measurement of matter, the fine detail of matter at the atomic level, energy, work, and power, as well as descriptions of levers and other simple machines, and the strain that can be exerted on fixed solids. Includes diagrams, definitions of science words, experiments, glossary, further resources, and index.