({{, (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])[entity,property] 
gives the value of the specified property for the physical system entity.}, {, (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])[{(Subscript[entity, 1]),(Subscript[entity, 2]),…},property]
gives a list of property values for the specified physical system entities.}, {, (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])[entity,property,annotation]
gives the specified annotation associated with the given property.}})

OpenersNotesSection(Spacer1)Details

(RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])[] gives a list of all physical system entities.

(RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])["Properties"] gives a list of available properties.

The specified entity in (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData]) can be an (RefLink[Entity, paclet:ref/Entity]), (RefLink[EntityClass, paclet:ref/EntityClass]), entity canonical name, or list thereof.

The specified property can be an (RefLink[EntityProperty, paclet:ref/EntityProperty]), (RefLink[EntityPropertyClass, paclet:ref/EntityPropertyClass]), property canonical name, or list of properties.

Properties that do not apply or are not known in a particular case are indicated by (RefLink[Missing, paclet:ref/Missing])[…].

Properties include:

Some properties are available for (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData]) as a whole and can be given using the form (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])[property]. Such properties include:

The following annotations can be used in the third argument of (RefLink[PhysicalSystemData, paclet:ref/PhysicalSystemData])[entity,property,annotation]:

If a function is provided as an annotation, it will be used to aggregate the result data. Typical aggregation functions include:

OpenersPrimaryExamplesSection(Spacer1)Examples  (6)

OpenersExampleSection0(Spacer1)Basic Examples  (5)

Use (Key1[ctrl, ==]) for entity discovery:

LinguisticAssistant

Find a list of sample entities for physical systems:

PhysicalSystemData["SampleEntities"]

Find properties of a physical system:

PhysicalSystemData[LinguisticAssistant,{EntityProperty["PhysicalSystem","HamiltonianFunction"],EntityProperty["PhysicalSystem","PotentialEnergy"]}]

Find a list of sample entity classes for physical systems:

PhysicalSystemData["SampleEntityClasses"]

Make a grid of electric conductors and their charge density:

Grid[PhysicalSystemData[LinguisticAssistant,{"Name","ElectricChargeDensity"}],Frame->All]//TraditionalForm

OpenersExampleSection2(Spacer1)Neat Examples  (1)

Use (RefLink[VectorPlot3D, paclet:ref/VectorPlot3D]) to show the magnetic potential of an electric current loop:

vectorPotential=PhysicalSystemData[LinguisticAssistant,
EntityProperty["PhysicalSystem","MagneticVectorPotential"]]/.{QuantityVariable["ℐ","ElectricCurrent"]->i,Quantity[expr_,"MagneticConstant"]:>expr μ0,QuantityVariable[t_,__]:>ToExpression@t};

Show[{VectorPlot3D[(Activate[vectorPotential]/.{R->1,i->1,μ0->1}),{x,-1,1},{y,-1,1},{z,-1,1},PlotRange->Automatic,VectorPoints->8,VectorColorFunction->Hue],ParametricPlot3D[{Sin[u],Cos[u],0},{u,0,2Pi},PlotStyle->{Thick,Black}]},ImageSize->Medium]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[EntityValue, paclet:ref/EntityValue])}, {Related Interpreter Types:  (RefLink[PhysicalSystem, paclet:ref/interpreter/PhysicalSystem])  ▪  (RefLink[ComputedPhysicalSystem, paclet:ref/interpreter/ComputedPhysicalSystem])}})}})

({{DocumentationFooterIconsRelatedGuide.png, ({{Related Guides}, {▪(RefLinkPlain[Scientific Models, paclet:guide/ScientificModels])}})}})