Force and work energy in action

""Introduces everyday mechanical forces and the mysteries of field forces like gravity and electro magnetism. The concepts of work, pressure and potential, and kinetic energy are explored" - container."@en
""Introduces everyday mechanical forces and the mysteries of field forces like gravity and electro magnetism. The concepts of work, pressure and potential, and kinetic energy are explored"--Container."
""Introduces everyday mechanical forces and the mysteries of field forces like gravity and electro magnetism. The concepts of work, pressure and potential, and kinetic energy are explored"--Container."@en
"Looks at everyday mechanical forces and mysteries of field forces like gravity, pressure, and potential and kinetic energy. Also shows how simple machines like levers and pulleys are used to provide mechanical advantage and combine to form complex compound machines. Concludes by introducing the concepts of power and efficiency."@en
"This DVD provides an introduction to everyday mechanical forces and the mysteries of field forces like gravity and electromagnetism. The concepts of work, pressure, and potential and kinetic energy are explored. The program looks at how simple machines like levers and pulleys are used to provide mechanical advantage and are combined to form complex compound machines."