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gravitational constant

gravitational constant

2 7.5
A number that shows how strong the pull of gravity is between two objects
  • noun
  • /ˌɡrævɪˈteɪʃənl ˈkɒnstənt/
  • Specialized
translation icon : constante gravitacional
  • These constants are C, the speed of light, G the gravitational constant, and H, Planck's constant.
  • Newton's gravitational constant

But also understand whether the gravitational constant truly is a constant.

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Examples

  • This means that Newton's gravitational constant, G, need not be constant either in space or time.

    Academic text (1994)
  • Letters brought us a new measurement of G, Newton's gravitational constant, by Stephan Schlamminger and coworkers at the University of Zürich.

    Academic text (2002)
  • So when you go to another planet that has a different gravitational constant, things will change.

  • But also understand whether the gravitational constant truly is a constant.

  • Recently, it was found that the distance between the Moon and Earth increases at an anomalous rate; the values of light speed and the gravitational constant suffer from increased uncertainty too.

    Blog text (20)
  • Things like the speed of light, Planck's constant, Boltzmann's constant, gravitational constant, and these numbers pin down the way that the universe is structured.

  • Over 20 years ago, work by Jacob Bekenstein (Hebrew University of Jerusalem) and Stephen Hawking (University of Cambridge) resulted in the relation S = A/4Gh, where G is Newton's gravitational constant.

    Academic text (1998)
  • As you might suspect, though, unbeknownst to Kepler, a constant was at work: Newton's gravitational constant lurked within Kepler's formulas, not to be revealed as such for another seventy years.

    Academic text (2004)
  • The gravitational constant, represented by the symbol G, determines how much force is exerted between two masses.

  • Scientists use the value of the gravitational constant G to calculate the orbits of planets around the Sun.

Synonyms

G
vsgravitational constant
  • Specialized
1 9.9

A number scientists use to measure the strength of gravity

is the same value but usually written out instead of as a symbol
constant of gravitation
vsgravitational constant
  • Specialized
7.2

A number that shows how strong gravity is between two objects depending on their mass and distance

is the same physical value but usually named with simpler wording
universal gravitational constant
vsgravitational constant
  • Specialized
8.4

A number that shows how strongly two objects with mass attract each other depending on their distance

is the same value but often styled with the longer descriptive label

Surface Forms

Morphology

gravitational + constant

The compound is fully compositional: 'gravitational' means 'pertaining to gravity' and 'constant' means 'a fixed value', so a B1 learner who knows both constituents can infer it is a fixed value related to gravity. Technical specifics (symbol G, its role in Newton's law) are specialized, but the core meaning is directly derivable and cross-linguistically transparent.

Etymology

Gravitational constant combines gravitational (about gravity) and constant (a fixed number). Think of it as the one fixed number in gravity's 'recipe' that decides how strongly two objects pull on each other, so it sets the 'force' between them.