Reservation Options: 1  TripAdvisor is proud to partner with Hilton Hotels Direct, Booking.com, Hotels.com, Priceline and Travelocity so you can book your Hampton Inn Heath-Newark reservations with confidence.
Gravitational potential energy is the energy an object has due to its position above Earth, energy due to its height. We know this energy exists because it takes effort to lift an object up to a height and also because when we release an object, it falls, gaining kinetic energy.
In a system of two interacting objects, each exerts itself on the other. Consequence is that potential energy is defined for the system. The potential energy mgh (see below) that the object possesses in the earthâs gravitational field is actually the potential energy of the earth-object system. If the object falls towards the centre of the earth, an equal magnitude of force acting on the earth will induce motion in the earth also.