瞶秖 (PhysicalQuantity)
A PhysicalQuantity is a measure of
some quantifiable aspect of the modeled world, such as 'the earth's
diameter' (a constant length) and 'the stress in a loaded deformable
solid' (a measure of stress, which is a function of three spatial
coordinates). All PhysicalQuantities are either ConstantQuantities
or FunctionQuantities. Instances of ConstantQuantity are dependent
on a UnitOfMeasure, while instances of FunctionQuantity are
Functions that map instances of ConstantQuantity to other instances
of ConstantQuantity (e.g., TimeDependentQuantities are
FunctionQuantities). Although the name and definition of
PhysicalQuantity is borrowed from physics, PhysicalQuantities need
not be material. Aside from the dimensions of length, time, velocity,
etc., nonphysical dimensions such as currency are also possible.
Accordingly, amounts of money would be instances of PhysicalQuantity.
PhysicalQuantities are distinguished from Numbers by the fact that
the former are associated with a dimension of measurement.
Ontology
SUMO / BASE-ONTOLOGYSuperclass(es)
Subclass(es)
盽秖
ㄧ计秖
秖虫
Coordinate term(s)
计
Constrains relations
代秖
Related WordNet synsets
- measure, quantity, amount, quantum
- how much there is of something that you can measure
- scale value
- a value on some scale of measurement
See more related synsets on a separate page.
Axioms (1)
瞶秖 Ч だ澄Θ 盽秖,ㄧ计秖.
(partition PhysicalQuantity ConstantQuantity FunctionQuantity)
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