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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.
Noun[edit] gravitational singularity â(plural gravitational singularities) (physics) A location where the quantities that are used to measure the gravitational field become infinite in a way that does not depend on the coordinate system.