Gravity - Wikipedia
Gravitation, also known as gravitational attraction, is the mutual attraction between all masses in the universe. Gravity is the gravitational attraction at the surface of a planet or other celestial body; [6] gravity may also include, in addition to gravitation, the centrifugal force resulting from the planet's rotation (see § Earth's gravity ...
13: Gravitation - Physics LibreTexts
13.1: Prelude to Gravitation Our visible Universe contains billions of galaxies, whose very existence is due to the force of gravity. Gravity is ultimately responsible for the energy output of all stars—initiating thermonuclear reactions in stars, allowing the Sun to heat Earth, and making galaxies visible from unfathomable distances.
Gravity | Definition, Physics, & Facts | Britannica
2024年10月30日 · The launch of space vehicles and developments of research from them have led to great improvements in measurements of gravity around Earth, other planets, and the Moon and in experiments on the nature of gravitation.
Newton’s law of gravitation | Definition, Formula, & Facts
2024年10月23日 · 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.
Einstein's Theory of Gravitation - Center for Astrophysics
This image of the black hole at the center of the nearby galaxy M87 reveals how gravitation affects the matter in orbit and the light that material emits, providing a novel test of general relativity in a regime where gravity is very strong.
Newton's law of universal gravitation - Wikipedia
Newton's law of universal gravitation states 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.
Universal Gravitation – The Physics Hypertextbook
There is no terrestrial gravitation for Earth and no celestial gravitation for the planets, but rather a universal gravitation for everything. Every object in the universe attracts every other object in the universe with a gravitational force.
What is gravity? | Space
2023年7月30日 · He taught us Newton's Law of Universal Gravitation, which says that "every particle attracts every other particle in the universe with a force that is proportional to the product of their masses...
Gravitation | Brilliant Math & Science Wiki
3 天之前 · Gravity or gravitation is a natural phenomenon by which all things with energy are brought toward (or gravitate toward) one another, including stars, planets, galaxies, and even light and sub-atomic particles.
Universal law of gravitation (video) | Khan Academy
Universal law of gravitation (video) | Khan Academy