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Is gravity a theory or a law?
What is gravity based on?
What is Newtonian theory of gravity?
Which theory describes gravity most accurately?
While the law lets us calculate quite a bit about what happens, notice that it does not tell us anything about WHY it happens. That is what theories are for. In the language of science, a theory is an explanation of why and how things happen. For gravity, we use Einstein's Theory of General Relativity to explain why things fall.
Newton's law of universal gravitation says that every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Jan 10, 2019 · So, is gravity a theory or a law? Well, first of all, it is an always acting force that one can feel. Second, it is both a theory and a law. The law of gravity calculates the amount of attraction while the theory describes why objects attract each other in the first place.
gravity, in mechanics, the universal force of attraction acting between all matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter. On the other hand, through its long reach and universal action, it controls the trajectories of bodies in the solar system and ...
Apr 12, 2024 · Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them. Isaac Newton put forward the law in 1687.
- The Editors of Encyclopaedia Britannica
Gravity is most accurately described by the general theory of relativity, proposed by Albert Einstein in 1915, which describes gravity not as a force, but as the curvature of spacetime, caused by the uneven distribution of mass, and causing masses to move along geodesic lines.
The Newtonian theory of gravity is based on an assumed force acting between all pairs of bodies—i.e., an action at a distance. When a mass moves, the force acting on other masses had been considered to adjust instantaneously to the new location of the displaced mass.
