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constant of proportionality

constant of proportionality

6.0
A number that shows how much one value changes when another changes at the same rate
  • noun
  • /ˈkɒnstənt əv prəˌpɔːrʧəˈnælɪti/
  • Specialized
translation icon : constante de proporcionalidad
  • And if you think G is a minuscule constant of proportionality, take a look at the current best value for h (in kilogram-meters squared per second): **43;1319;TOOLONG.

Examples

  • But there is a constant of proportionality as well as an exponential curve.

    Blog text (5)
  • The constant of proportionality, called the Hubble Constant, remains uncertain by about a factor of 2.

    Academic text (1990)
  • That's what that is, OK And K is your constant of proportionality, OK?

  • In addition, we might think that the constant of proportionality is related to the absolute size of the easement.

    Academic text (2017)
  • The same constant of proportionality applies for heat radiation, for light, and even for X-rays.

    Academic text (2006)
  • The constant of proportionality, k, is the material's thermal conductivity.

    Academic text (1999)
  • It is not a uniform constant of proportionality between heat capacity and temperature for all substances.

    Blog text (10)
  • In this case, the constant of proportionality, 28, is the density of water, the number of kilograms per cubic foot.

    Academic text (2006)
  • The constant of proportionality, k, in the equation y = kx, determines how two variables are related.

  • In physics, the constant of proportionality helps to relate the force applied to an object and its acceleration.

Synonyms

coefficient
vsconstant of proportionality
  • Specialized
26 6.7

A number that multiplies a variable or shows how strong a relationship is in math and science

is narrower in scope and used only for constants relating two proportional quantities
factor of proportionality
vsconstant of proportionality
  • Specialized
4.5

A number you multiply one amount by to get another amount that changes the same way

is the specific term for that same constant linking two proportional quantities

Surface Forms

Morphology

constant + of + proportionality

The meaning — the fixed value associated with a proportional relationship — is directly and compositionally derived from 'constant' (a fixed value) + 'of' + 'proportionality' (the multiplicative relation). This standard 'noun of noun' technical construction is common in scientific language and mirrored in many languages (e.g., Spanish/French), so a B1 learner who knows the constituent words can reliably infer the MWE's meaning.

Etymology

Constant of proportionality comes from two simple ideas: a constant is something that does not change and proportionality means two things change together at a steady rate. Imagine a recipe where doubling one ingredient doubles the other; the fixed number that links them is the 'constant of proportionality', so it tells how much one quantity changes when the other changes.