https://www.khanacademy.org/science/ap-physics-c-mechanics/x077f5683c1428fac:work-energy-and-power 2026-06-30T04:10:47.863261627Z Work, energy, and power Learn about kinetic and gravitational potential energy, understanding that a single object can only have kinetic energy, while potential energy is stored in a system of objects. Explore work as a means through which energy is transferred, and apply the principle of energy conservation to analyze changes in a system's energy. Express energy concepts using multiple representations, including bar charts, graphs, and equations. Define power as the rate of change of energy. unit