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Gravity is the force of attraction whcih exists between all matter in the universe. Its strength is inversely proportional to the square of the distance between the two parti â¦ cles of matter.
Scientists continue to pursue a unified theory of these forces. 1  Gravitation is the force that acts between masses. All particles experience the force of gravity. 2  The electromagnetic force acts between electrical charges and the mediating particle is the photon.