Physics Ontology

One map of physics, three ways in. Drill down on any quantity to see its units, the equations it lives in, and how its values span the universe.

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GG
Fundamental Constants

Gravitational Constant

Coupling strength in Newton's law of gravitation and gravitational field equations.

SI unit

N m² kg⁻² (N·m²/kg²)

Dimension: [L3M1T2][\,L^3 M^{-1} T^{-2}\,]

Other units

  • N m² kg⁻² (N·m²/kg²)

Defined value

Fixed constant from the A-level data sheets.

6.67 × 10-11 N·m²/kg²

A-level value

Appears in 3 equations

Newton's Law of Gravitation
F=Gm1m2r2F = G\dfrac{m_1 m_2}{r^2}
Gravitational Field (radial)
g=GMr2g = \dfrac{GM}{r^2}
Gravitational Potential
V=GMrV = -\dfrac{GM}{r}

Associated scientists