Potential energy is a significant concept that allows for the formulation of the law of conservation of mechanical energy which can be applied to simple systems to make solving problems easier. Conser...Potential energy is a significant concept that allows for the formulation of the law of conservation of mechanical energy which can be applied to simple systems to make solving problems easier. Conservation is a physical property of a given quantity stating that it stays constant regardless of the path taken to get to the quantity's final state. The law of conservation of energy will be applied in increasingly more detail through situations involving more complex and varied systems.