Work Power and MACHINES

Work is when a force moves something, and the thing that it moves, is doing work because the energy which could be a person pushing is moving the object. Power is the rate at which work is being done. Mechanical Advantage is when you do something with a tool that makes doing the labor a lot easier. Like using your fingers to screw in a screw. And then it would be a lot easier to use a screwdriver. I expect the chapter to be really interesting involving tools.