About 8,200 results
Open links in new tab
  1. Gravity | Definition, Physics, & Facts | Britannica

    Dec 4, 2025 · Gravity, in mechanics, is the universal force of attraction acting between all bodies of matter. It is by far the weakest force known in nature and thus plays no role in determining …

  2. Gravity - Newton's Law, Universal Force, Mass Attraction | Britannica

    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.

  3. Gravity - Force, Physics, Theory | Britannica

    Dec 4, 2025 · Gravity - Force, Physics, Theory: The Newtonian theory of gravity is based on an assumed force acting between all pairs of bodies—i.e., an action at a distance.

  4. gravity - Students | Britannica Kids | Homework Help

    Gravity is a force that objects exert on each other because of their respective masses. An object dropped near Earth’s surface falls to the ground because it is pulled down by the force of …

  5. Newton’s law of gravitation | Definition, Formula, & Facts | Britannica

    Nov 21, 2025 · planetary orbits: Kepler, Newton, and gravity Brian Greene demonstrates how Newton's law of gravitation determines the trajectories of the planets and explains the patterns …

  6. gravity - Kids | Britannica Kids | Homework Help

    Introduction All objects attract other objects because of a force called gravity. Gravity is a pulling force that works across space. That is, objects do not have to touch each other for the force of …

  7. Specific gravity | Formula, Units, & Equation | Britannica

    6 days ago · The density of an object in comparison to the density of water is called specific gravity. Objects that float when placed in a fluid have a lower specific gravity than the fluid, …

  8. Gravity Definition & Meaning | Britannica Dictionary

    They didn't seem to understand the gravity [= seriousness] of the situation. He uttered the oath with proper gravity. [= solemnity]

  9. Gravity - Acceleration, Earth, Moon | Britannica

    Gravity - Acceleration, Earth, Moon: The value of the attraction of gravity or of the potential is determined by the distribution of matter within Earth or some other celestial body.

  10. Center of gravity | Definition & Facts | Britannica

    Nov 12, 2025 · Center of gravity, in physics, an imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be …