Gravity is a force that attracts objects towards each other from "summary" of The World of Physics 2nd Edition by John Avison
Gravity, the force that draws objects towards each other, is a fundamental concept in physics. This force is what keeps our feet firmly planted on the ground and holds the planets in their orbits around the sun. Without gravity, objects would float off into space, with no regard for the laws of physics that govern our universe. The concept of gravity was famously explained by Sir Isaac Newton in his law of universal gravitation. According to this law, every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. In simpler terms, this means that the larger an object's mass and the closer it is to another object, the stronger the gravitational force between them. Gravity is a force that ...
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