Enum: QuantityKindEnum
Physical quantity kinds based on QUDT. These represent abstract types of physical quantities independent of the units used to measure them.
URI: valuesets:QuantityKindEnum
Permissible Values
| Value | Meaning | Description |
|---|---|---|
| LENGTH | quantitykind:Length | A 1-D extent quality representing distance between two points |
| MASS | quantitykind:Mass | The amount of matter in an object |
| TIME | quantitykind:Time | Duration or temporal extent |
| THERMODYNAMIC_TEMPERATURE | quantitykind:ThermodynamicTemperature | The thermal energy of a system |
| AMOUNT_OF_SUBSTANCE | quantitykind:AmountOfSubstance | The number of elementary entities (atoms, molecules, etc |
| ELECTRIC_CURRENT | quantitykind:ElectricCurrent | Flow of electric charge per unit time |
| LUMINOUS_INTENSITY | quantitykind:LuminousIntensity | Luminous power per unit solid angle emitted by a point light source |
| AREA | quantitykind:Area | A 2-D extent representing the size of a surface |
| VOLUME | quantitykind:Volume | A 3-D extent representing the amount of space occupied |
| ANGLE | quantitykind:Angle | The figure formed by two rays sharing a common endpoint |
| SOLID_ANGLE | quantitykind:SolidAngle | A 3-D angular measure |
| VELOCITY | quantitykind:Velocity | Rate of change of position with direction |
| SPEED | quantitykind:Speed | Scalar rate of change of position |
| ACCELERATION | quantitykind:Acceleration | Rate of change of velocity |
| FORCE | quantitykind:Force | Rate of change of momentum |
| PRESSURE | quantitykind:Pressure | Force per unit area |
| ENERGY | quantitykind:Energy | Capacity to do work |
| WORK | quantitykind:Work | Energy transferred by a force |
| POWER | quantitykind:Power | Rate of doing work or transferring energy |
| MOMENTUM | quantitykind:Momentum | Product of mass and velocity |
| TORQUE | quantitykind:Torque | Rotational force or moment of force |
| ANGULAR_VELOCITY | quantitykind:AngularVelocity | Rate of change of angular position |
| ANGULAR_ACCELERATION | quantitykind:AngularAcceleration | Rate of change of angular velocity |
| DENSITY | quantitykind:Density | Mass per unit volume |
| VISCOSITY | quantitykind:DynamicViscosity | Internal resistance to flow |
| KINEMATIC_VISCOSITY | quantitykind:KinematicViscosity | Dynamic viscosity divided by density |
| FREQUENCY | quantitykind:Frequency | Number of repetitive events per unit time |
| MASS_CONCENTRATION | quantitykind:MassConcentration | Mass of a substance per unit volume |
| AMOUNT_CONCENTRATION | quantitykind:AmountConcentration | Amount of substance per unit volume (molarity) |
| ELECTRIC_CHARGE | quantitykind:ElectricCharge | Fundamental property of matter causing electromagnetic interaction |
| ELECTRIC_POTENTIAL | quantitykind:ElectricPotential | Potential energy per unit charge (voltage) |
| ELECTRIC_RESISTANCE | quantitykind:Resistance | Opposition to electric current flow |
| ELECTRICAL_CONDUCTIVITY | quantitykind:Conductivity | Ability to conduct electric current |
| CAPACITANCE | quantitykind:Capacitance | Ability to store electric charge |
| INDUCTANCE | quantitykind:Inductance | Property relating magnetic flux to electric current |
| MAGNETIC_FLUX | quantitykind:MagneticFlux | Measure of total magnetic field passing through a surface |
| MAGNETIC_FLUX_DENSITY | quantitykind:MagneticFluxDensity | Magnetic flux per unit area |
| HEAT_CAPACITY | quantitykind:HeatCapacity | Heat required to raise temperature by one unit |
| SPECIFIC_HEAT_CAPACITY | quantitykind:SpecificHeatCapacity | Heat capacity per unit mass |
| THERMAL_CONDUCTIVITY | quantitykind:ThermalConductivity | Ability to conduct heat |
| LUMINOUS_FLUX | quantitykind:LuminousFlux | Total perceived light power emitted |
| ILLUMINANCE | quantitykind:Illuminance | Luminous flux per unit area |
| RADIANT_INTENSITY | quantitykind:RadiantIntensity | Radiant power per unit solid angle |
| ACTIVITY | quantitykind:Activity | Number of nuclear disintegrations per unit time |
| ABSORBED_DOSE | quantitykind:AbsorbedDose | Energy deposited per unit mass by ionizing radiation |
| DOSE_EQUIVALENT | quantitykind:DoseEquivalent | Absorbed dose weighted by radiation type |
| INFORMATION_ENTROPY | quantitykind:InformationEntropy | Measure of information content or uncertainty |
| DATA_RATE | quantitykind:DataRate | Amount of data transferred per unit time |
Slots
| Name | Description |
|---|---|
| quantity_kind | The type of physical quantity being measured |
See Also
Identifier and Mapping Information
Schema Source
- from schema: https://w3id.org/linkml/valuesets
LinkML Source
name: QuantityKindEnum
instantiates:
- valuesets_meta:ValueSetEnumDefinition
description: Physical quantity kinds based on QUDT. These represent abstract types
of physical quantities independent of the units used to measure them.
title: Quantity Kind
from_schema: https://w3id.org/linkml/valuesets
see_also:
- https://www.qudt.org/doc/DOC_VOCAB-QUANTITY-KINDS.html
contributors:
- orcid:0000-0002-6601-2165
- https://github.com/anthropics/claude-code
status: DRAFT
rank: 1000
permissible_values:
LENGTH:
text: LENGTH
description: A 1-D extent quality representing distance between two points
meaning: quantitykind:Length
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: L
title: length
exact_mappings:
- PATO:0000122
MASS:
text: MASS
description: The amount of matter in an object
meaning: quantitykind:Mass
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: M
title: mass
exact_mappings:
- PATO:0000125
TIME:
text: TIME
description: Duration or temporal extent
meaning: quantitykind:Time
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: T
pato_label:
tag: pato_label
value: duration
title: time
exact_mappings:
- PATO:0001309
THERMODYNAMIC_TEMPERATURE:
text: THERMODYNAMIC_TEMPERATURE
description: The thermal energy of a system
meaning: quantitykind:ThermodynamicTemperature
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: Θ
pato_label:
tag: pato_label
value: temperature
title: thermodynamic temperature
exact_mappings:
- PATO:0000146
AMOUNT_OF_SUBSTANCE:
text: AMOUNT_OF_SUBSTANCE
description: The number of elementary entities (atoms, molecules, etc.)
meaning: quantitykind:AmountOfSubstance
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: N
pato_label:
tag: pato_label
value: amount
title: amount of substance
close_mappings:
- PATO:0000070
ELECTRIC_CURRENT:
text: ELECTRIC_CURRENT
description: Flow of electric charge per unit time
meaning: quantitykind:ElectricCurrent
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: I
title: electric current
LUMINOUS_INTENSITY:
text: LUMINOUS_INTENSITY
description: Luminous power per unit solid angle emitted by a point light source
meaning: quantitykind:LuminousIntensity
annotations:
si_base:
tag: si_base
value: 'true'
dimension:
tag: dimension
value: J
pato_label:
tag: pato_label
value: luminance
title: luminous intensity
close_mappings:
- PATO:0001718
AREA:
text: AREA
description: A 2-D extent representing the size of a surface
meaning: quantitykind:Area
annotations:
dimension:
tag: dimension
value: L²
title: area
exact_mappings:
- PATO:0001323
VOLUME:
text: VOLUME
description: A 3-D extent representing the amount of space occupied
meaning: quantitykind:Volume
annotations:
dimension:
tag: dimension
value: L³
title: volume
exact_mappings:
- PATO:0000918
ANGLE:
text: ANGLE
description: The figure formed by two rays sharing a common endpoint
meaning: quantitykind:Angle
annotations:
dimension:
tag: dimension
value: dimensionless
title: plane angle
exact_mappings:
- PATO:0002326
SOLID_ANGLE:
text: SOLID_ANGLE
description: A 3-D angular measure
meaning: quantitykind:SolidAngle
annotations:
dimension:
tag: dimension
value: dimensionless
title: solid angle
VELOCITY:
text: VELOCITY
description: Rate of change of position with direction
meaning: quantitykind:Velocity
annotations:
dimension:
tag: dimension
value: L·T⁻¹
title: velocity
exact_mappings:
- PATO:0002242
SPEED:
text: SPEED
description: Scalar rate of change of position
meaning: quantitykind:Speed
annotations:
dimension:
tag: dimension
value: L·T⁻¹
title: speed
exact_mappings:
- PATO:0000008
ACCELERATION:
text: ACCELERATION
description: Rate of change of velocity
meaning: quantitykind:Acceleration
annotations:
dimension:
tag: dimension
value: L·T⁻²
title: acceleration
exact_mappings:
- PATO:0001028
FORCE:
text: FORCE
description: Rate of change of momentum
meaning: quantitykind:Force
annotations:
dimension:
tag: dimension
value: M·L·T⁻²
title: force
exact_mappings:
- PATO:0001035
PRESSURE:
text: PRESSURE
description: Force per unit area
meaning: quantitykind:Pressure
annotations:
dimension:
tag: dimension
value: M·L⁻¹·T⁻²
title: pressure
exact_mappings:
- PATO:0001025
ENERGY:
text: ENERGY
description: Capacity to do work
meaning: quantitykind:Energy
annotations:
dimension:
tag: dimension
value: M·L²·T⁻²
title: energy
exact_mappings:
- PATO:0001021
WORK:
text: WORK
description: Energy transferred by a force
meaning: quantitykind:Work
annotations:
dimension:
tag: dimension
value: M·L²·T⁻²
title: work
exact_mappings:
- PATO:0001026
POWER:
text: POWER
description: Rate of doing work or transferring energy
meaning: quantitykind:Power
annotations:
dimension:
tag: dimension
value: M·L²·T⁻³
title: power
exact_mappings:
- PATO:0001024
MOMENTUM:
text: MOMENTUM
description: Product of mass and velocity
meaning: quantitykind:Momentum
annotations:
dimension:
tag: dimension
value: M·L·T⁻¹
title: momentum
exact_mappings:
- PATO:0001023
TORQUE:
text: TORQUE
description: Rotational force or moment of force
meaning: quantitykind:Torque
annotations:
dimension:
tag: dimension
value: M·L²·T⁻²
title: torque
ANGULAR_VELOCITY:
text: ANGULAR_VELOCITY
description: Rate of change of angular position
meaning: quantitykind:AngularVelocity
annotations:
dimension:
tag: dimension
value: T⁻¹
title: angular velocity
ANGULAR_ACCELERATION:
text: ANGULAR_ACCELERATION
description: Rate of change of angular velocity
meaning: quantitykind:AngularAcceleration
annotations:
dimension:
tag: dimension
value: T⁻²
title: angular acceleration
exact_mappings:
- PATO:0001350
DENSITY:
text: DENSITY
description: Mass per unit volume
meaning: quantitykind:Density
annotations:
dimension:
tag: dimension
value: M·L⁻³
pato_label:
tag: pato_label
value: mass density
title: density
exact_mappings:
- PATO:0001019
VISCOSITY:
text: VISCOSITY
description: Internal resistance to flow
meaning: quantitykind:DynamicViscosity
annotations:
dimension:
tag: dimension
value: M·L⁻¹·T⁻¹
title: dynamic viscosity
exact_mappings:
- PATO:0000992
KINEMATIC_VISCOSITY:
text: KINEMATIC_VISCOSITY
description: Dynamic viscosity divided by density
meaning: quantitykind:KinematicViscosity
annotations:
dimension:
tag: dimension
value: L²·T⁻¹
title: kinematic viscosity
FREQUENCY:
text: FREQUENCY
description: Number of repetitive events per unit time
meaning: quantitykind:Frequency
annotations:
dimension:
tag: dimension
value: T⁻¹
title: frequency
exact_mappings:
- PATO:0000044
MASS_CONCENTRATION:
text: MASS_CONCENTRATION
description: Mass of a substance per unit volume
meaning: quantitykind:MassConcentration
annotations:
dimension:
tag: dimension
value: M·L⁻³
pato_label:
tag: pato_label
value: concentration of
title: mass concentration
exact_mappings:
- PATO:0000033
AMOUNT_CONCENTRATION:
text: AMOUNT_CONCENTRATION
description: Amount of substance per unit volume (molarity)
meaning: quantitykind:AmountConcentration
annotations:
dimension:
tag: dimension
value: N·L⁻³
title: amount concentration
close_mappings:
- PATO:0000033
ELECTRIC_CHARGE:
text: ELECTRIC_CHARGE
description: Fundamental property of matter causing electromagnetic interaction
meaning: quantitykind:ElectricCharge
annotations:
dimension:
tag: dimension
value: I·T
title: electric charge
exact_mappings:
- PATO:0002193
ELECTRIC_POTENTIAL:
text: ELECTRIC_POTENTIAL
description: Potential energy per unit charge (voltage)
meaning: quantitykind:ElectricPotential
annotations:
dimension:
tag: dimension
value: M·L²·T⁻³·I⁻¹
title: electric potential
aliases:
- voltage
exact_mappings:
- PATO:0001464
ELECTRIC_RESISTANCE:
text: ELECTRIC_RESISTANCE
description: Opposition to electric current flow
meaning: quantitykind:Resistance
annotations:
dimension:
tag: dimension
value: M·L²·T⁻³·I⁻²
title: electric resistance
ELECTRICAL_CONDUCTIVITY:
text: ELECTRICAL_CONDUCTIVITY
description: Ability to conduct electric current
meaning: quantitykind:Conductivity
annotations:
dimension:
tag: dimension
value: I²·T³·M⁻¹·L⁻³
title: electrical conductivity
exact_mappings:
- PATO:0001757
CAPACITANCE:
text: CAPACITANCE
description: Ability to store electric charge
meaning: quantitykind:Capacitance
annotations:
dimension:
tag: dimension
value: I²·T⁴·M⁻¹·L⁻²
title: capacitance
INDUCTANCE:
text: INDUCTANCE
description: Property relating magnetic flux to electric current
meaning: quantitykind:Inductance
annotations:
dimension:
tag: dimension
value: M·L²·T⁻²·I⁻²
title: inductance
MAGNETIC_FLUX:
text: MAGNETIC_FLUX
description: Measure of total magnetic field passing through a surface
meaning: quantitykind:MagneticFlux
annotations:
dimension:
tag: dimension
value: M·L²·T⁻²·I⁻¹
title: magnetic flux
MAGNETIC_FLUX_DENSITY:
text: MAGNETIC_FLUX_DENSITY
description: Magnetic flux per unit area
meaning: quantitykind:MagneticFluxDensity
annotations:
dimension:
tag: dimension
value: M·T⁻²·I⁻¹
title: magnetic flux density
HEAT_CAPACITY:
text: HEAT_CAPACITY
description: Heat required to raise temperature by one unit
meaning: quantitykind:HeatCapacity
annotations:
dimension:
tag: dimension
value: M·L²·T⁻²·Θ⁻¹
title: heat capacity
SPECIFIC_HEAT_CAPACITY:
text: SPECIFIC_HEAT_CAPACITY
description: Heat capacity per unit mass
meaning: quantitykind:SpecificHeatCapacity
annotations:
dimension:
tag: dimension
value: L²·T⁻²·Θ⁻¹
title: specific heat capacity
THERMAL_CONDUCTIVITY:
text: THERMAL_CONDUCTIVITY
description: Ability to conduct heat
meaning: quantitykind:ThermalConductivity
annotations:
dimension:
tag: dimension
value: M·L·T⁻³·Θ⁻¹
pato_label:
tag: pato_label
value: heat conductivity
title: thermal conductivity
exact_mappings:
- PATO:0001756
LUMINOUS_FLUX:
text: LUMINOUS_FLUX
description: Total perceived light power emitted
meaning: quantitykind:LuminousFlux
annotations:
dimension:
tag: dimension
value: J
title: luminous flux
exact_mappings:
- PATO:0001296
ILLUMINANCE:
text: ILLUMINANCE
description: Luminous flux per unit area
meaning: quantitykind:Illuminance
annotations:
dimension:
tag: dimension
value: J·L⁻²
title: illuminance
RADIANT_INTENSITY:
text: RADIANT_INTENSITY
description: Radiant power per unit solid angle
meaning: quantitykind:RadiantIntensity
annotations:
dimension:
tag: dimension
value: M·L²·T⁻³
title: radiant intensity
ACTIVITY:
text: ACTIVITY
description: Number of nuclear disintegrations per unit time
meaning: quantitykind:Activity
annotations:
dimension:
tag: dimension
value: T⁻¹
title: activity (radioactivity)
ABSORBED_DOSE:
text: ABSORBED_DOSE
description: Energy deposited per unit mass by ionizing radiation
meaning: quantitykind:AbsorbedDose
annotations:
dimension:
tag: dimension
value: L²·T⁻²
title: absorbed dose
DOSE_EQUIVALENT:
text: DOSE_EQUIVALENT
description: Absorbed dose weighted by radiation type
meaning: quantitykind:DoseEquivalent
annotations:
dimension:
tag: dimension
value: L²·T⁻²
title: dose equivalent
INFORMATION_ENTROPY:
text: INFORMATION_ENTROPY
description: Measure of information content or uncertainty
meaning: quantitykind:InformationEntropy
annotations:
dimension:
tag: dimension
value: dimensionless
title: information entropy
DATA_RATE:
text: DATA_RATE
description: Amount of data transferred per unit time
meaning: quantitykind:DataRate
annotations:
dimension:
tag: dimension
value: T⁻¹
title: data rate