gravitational constant

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Related to Newton's constant: Law of universal gravitation

gravitational constant

Symbol: G . A universal constant that appears in Newton's law of gravitation and is the force of attraction between two bodies of unit mass separated by unit distance. It is equal to 6.672 × 10–11 N m2 kg–2. Predictions that G is decreasing very slightly with time (by less than one part in 1010) are not supported by experimental evidence.

gravitational constant

[‚grav·ə′tā·shən·əl ′kän·stənt]
(mechanics)
The constant of proportionality in Newton's law of gravitation, equal to the gravitational force between any two particles times the square of the distance between them, divided by the product of their masses. Also known as constant of gravitation.
References in periodicals archive ?
There is no reason to assume the question of variability of Newton's constant should subject to different rules.
4 Variation of Newton's constant and the age of universe
act)] is inseparable from G, which means that any change in the active mass should be interpreted as the change in the Newton's constant.
It is based on the idea of an effective Newton's constant as an effective coupling representing all gravitational effects on a body.