Students who work a job make worse grades. What is the Independent Variable?

What is work? how much work is done to move an object 0 meters?

Ways that industry and agriculture use physical properties to separate substances

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?