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gravitational    音标拼音: [gr,ævɪt'eʃənəl]

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  • Gravity - Wikipedia
    Gravity is the word used to describe a physical law, a fundamental physical interaction that derives primarily from mass, and the observed consequences of that interaction on objects
  • Gravity | Definition, Physics, Facts | Britannica
    The works of Isaac Newton and Albert Einstein dominate the development of gravitational theory Newton’s classical theory of gravitational force held sway from his Principia, published in 1687, until Einstein’s work in the early 20th century
  • DOE Explains. . . Gravity | Department of Energy
    Gravity is the force of fundamental attraction between all things that have mass or energy It feels powerful to us in our daily lives, but it is by far the weakest of the four known forces in nature The strong force is the strongest of the forces and it binds nuclei together
  • What Is Gravity? | NASA Space Place – NASA Science for Kids
    The answer is gravity: an invisible force that pulls objects toward each other Earth's gravity is what keeps you on the ground and what makes things fall An animation of gravity at work Albert Einstein described gravity as a curve in space that wraps around an object—such as a star or a planet
  • GRAVITY Definition Meaning - Merriam-Webster
    The meaning of GRAVITY is the gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface How to use gravity in a sentence
  • Gravitation | Brilliant Math Science Wiki
    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 Gravitation – The Physics Hypertextbook
    Every object in the universe attracts every other object in the universe with a gravitational force The magnitude of the gravitational force between two objects is…
  • Gravity - Math is Fun
    Gravity is all around us It can, for example, make an apple fall to the ground: Gravity constantly acts on the apple so it goes faster and faster
  • What is gravity? - Live Science
    Gravity is one of the four fundamental forces in the universe, alongside electromagnetism and the strong and weak nuclear forces Despite being all-pervasive and important for keeping our feet
  • 13: Gravitation - Physics LibreTexts
    In this section, we study the nature of the gravitational force for objects as small as ourselves and for systems as massive as entire galaxies We show how the gravitational force affects objects on Earth and the motion of the Universe itself





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