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The quasi three-dimensional potential energy surface was table-like for the E isomer with ridges of very small heights between the shallow valley-like minima . For each animation , draw and describe what the added potential energy function does to the overall potential energy function of the finite well . Based on ab initio NiO-cluster calculations a three-dimensional potential energy surface was constructed for the electronic ground and a representative excited state . A circular orbit occurs when the kinetic energy of an orbiting body is exactly equal to half of its negative potential energy , and its direction of travel is exactly perpendicular to the direction from the orbiter to the thing orbited . To me , she was less kinetic than potential energy , the ball about to roll down the hill but not quite there yet . At this point it has traveled the greatest distance through the gravitational field , and therefore has maximum potential energy .