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A measurable or theoretically defined property represented by a value, unit, tensor, operator, field, or distribution.
wp-physics-physical_quantitynist-codataEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Physical quantities characterize properties or possible measurements of a system.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-physical_quantitynist-codatawp-physics-physical_systemnlab-physics-physical_systemEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Energy is a physical quantity whose exact definition is theory-dependent.
The target is a member or subtype of the broader source class.
wp-physics-physical_quantitynist-codatawp-physics-energynlab-physics-energycambridge-classical-dynamicstong-relativityThis is an authored directed relation from the source endpoint to the target endpoint.
Linear momentum is a physical quantity associated with spatial translations.
The target is a member or subtype of the broader source class.
wp-physics-physical_quantitynist-codatawp-physics-linear_momentumnlab-physics-linear_momentumcambridge-classical-dynamicstong-relativityThis is an authored directed relation from the source endpoint to the target endpoint.
A measurement result reports a value attributed to a specified physical quantity together with the measurement model, conditions, unit convention, and any required qualification.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
bipm-gum-1This is an authored directed relation from the source endpoint to the target endpoint.
An observable is a physical quantity represented so that the theory assigns possible outcomes or expectation values.
A more specific theory, model, entity class, or regime is obtained by restricting or extending the scope of a broader framework.
wp-physics-observablenlab-physics-observablewp-physics-physical_quantitynist-codataThis is an authored directed relation from the source endpoint to the target endpoint.
A physical quantity is assigned dimensions relative to a chosen system of base quantities; the assignment is conventional but constrains valid products, powers, and equations.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
bipm-si-brochure