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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.
1 Gravitational Field of the Earth. 2  Gravitational field strength. 3  Gravitational field strength. 4  Gravitational field strength. 5  Gravitational Field-Flow Fractionation. 6  Gravitational fields. 7  Gravitational fields. 8  Gravitational fields. 9  gravitational flux density. 10  gravitational force.