Gravity - Wikipedia
网页In physics, gravity (from Latin gravitas 'weight' [1]) is a fundamental interaction primarily observed as mutual attraction between all things that have mass. Gravity is, by far, the weakest of the four fundamental interactions, approximately 10 38 times weaker than the strong interaction, 10 36 times weaker than the electromagnetic force and ...
GRAVITATIONAL中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页adjective. uk / ˌɡræv.ɪˈteɪ.ʃ ə n. ə l / us / ˌɡræv.əˈteɪ.ʃ ə n. ə l / Add to word list. relating to gravity or gravitation (= the force that attracts objects towards one another) 重力的，引力 …
Gravity | Definition, Physics, & Facts | Britannica
网页2024年9月11日 · gravity, in mechanics, the universal force of attraction acting between all bodies of matter. It is by far the weakest known force in nature and thus plays no role in determining the internal properties of everyday matter.
What Is Gravity? | NASA Space Place – NASA Science for Kids
网页2024年9月13日 · Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. The gravitational pull of the moon pulls the seas towards it, causing the ocean tides. Gravity creates stars and planets by pulling together the material from which they are made.
Newton’s law of gravitation | Definition, Formula, & Facts
网页2024年8月1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. …
What is gravity? | Space
网页2023年7月30日 · The modern description of gravity so accurately predicts how masses interact that it has become a guide for cosmic discoveries. American astronomers Vera Rubin and Kent Ford noticed in the 1960s ...
Gravity - Newton's Law, Universal Force, Mass Attraction
网页2024年9月11日 · Gravity - Newton's Law, Universal Force, Mass Attraction: Newton discovered the relationship between the motion of the Moon and the motion of a body falling freely on Earth. By his dynamical and gravitational theories, he explained Kepler’s laws and established the modern quantitative science of gravitation.
What is gravity? - New Scientist
网页Gravity is just geometry, the result of the curvature by massive objects of the space and time around them. The strength of the gravitational “ field ” at any point in space or time is just the...
GRAVITATION中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页gravitation noun (MOVEMENT TOWARDS) [ S or U ] an occasion when someone or something moves or is attracted in the direction of a particular thing or person. 吸引. The …
Gravitational Force - NASA Science
网页2022年12月20日 · NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery. This illustration explains the gravitational force, one of the four fundamental forces in the universe.
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