### Physical dimensions

dimension Angle = 1  # SI: plane angle
dimension SolidAngle = Angle^2

dimension Length
dimension Area = Length^2
dimension Volume = Length^3
dimension Wavenumber = 1 / Length

dimension Time
dimension Frequency = 1 / Time
dimension Velocity = Length / Time
dimension Acceleration = Length / Time^2
dimension Jerk = Length / Time^3
dimension FlowRate = Volume / Time

dimension Mass
dimension Momentum = Mass × Velocity
dimension Force = Mass × Acceleration = Momentum / Time
dimension Energy = Momentum^2 / Mass = Mass × Velocity^2 = Force × Length  # also: work, amount of heat
dimension Power = Energy / Time = Force × Velocity
dimension Pressure = Force / Area = Energy / Volume  # also: stress
dimension Action = Energy × Time
dimension MassDensity = Mass / Length^3
dimension MomentOfInertia = Mass × Length^2 / Angle^2
dimension AngularMomentum = MomentOfInertia × Angle / Time = Mass × Length^2 / Time / Angle
dimension Torque = Length × Force / Angle  # also: moment of force
dimension EnergyDensity = Energy / Volume
dimension MassFlow = Mass / Time

dimension Current
dimension ElectricCharge = Current × Time
dimension Voltage = Energy / ElectricCharge = Power / Current  # ISQ: electric tension, SI: electric potential difference
dimension Capacitance = ElectricCharge / Voltage
dimension ElectricResistance = Voltage / Current
dimension Resistivity = ElectricResistance × Length
dimension ElectricConductance = 1 / ElectricResistance
dimension Conductivity = ElectricConductance / Length
dimension MagneticFluxDensity = Force / (ElectricCharge × Velocity)
dimension MagneticFlux = MagneticFluxDensity × Area = Voltage × Time
dimension MagneticFieldStrength = Current / Length
dimension Inductance = MagneticFlux / Current
dimension ElectricChargeDensity = ElectricCharge / Volume
dimension CurrentDensity = Current / Area
dimension ElectricDipoleMoment = ElectricCharge × Length
dimension ElectricQuadrupoleMoment = ElectricCharge × Length^2
dimension MagneticDipoleMoment = Current × Area = Torque / MagneticFluxDensity
dimension ElectricFieldStrength = Voltage / Length
dimension ElectricDisplacementFieldStrength = ElectricCharge / Area
dimension ElectricPermittivity = Time^4 × Current^2 / Mass / Length^3 × Angle = ElectricDisplacementFieldStrength / ElectricFieldStrength × Angle
dimension MagneticPermeability = Length × Mass / Time^2 / Current^2 / Angle = MagneticFluxDensity / MagneticFieldStrength / Angle
dimension Polarizability = ElectricDipoleMoment / ElectricFieldStrength = Current^2 × Time^4 / Mass
dimension ElectricMobility = Velocity / ElectricFieldStrength

dimension Temperature
dimension Entropy = Energy / Temperature
dimension HeatCapacity = Energy / Temperature
dimension SpecificHeatCapacity = HeatCapacity / Mass
dimension ThermalConductivity = Power / (Length × Temperature)
dimension ThermalTransmittance = Power / (Length^2 × Temperature)

dimension AmountOfSubstance
dimension MolarMass = Mass / AmountOfSubstance
dimension MolarVolume = Volume / AmountOfSubstance
dimension CatalyticActivity = AmountOfSubstance / Time
dimension Molarity = AmountOfSubstance / Volume
dimension Molality = AmountOfSubstance / Mass
dimension ChemicalPotential = Energy / AmountOfSubstance
dimension MolarEnthalpyOfVaporization = Energy / AmountOfSubstance
dimension MolarHeatCapacity = HeatCapacity / AmountOfSubstance

dimension LuminousIntensity
dimension LuminousFlux = LuminousIntensity × Angle^2
dimension Illuminance = LuminousFlux / Area
dimension Irradiance = Power / Area

dimension Activity = 1 / Time
dimension AbsorbedDose = Energy / Mass
dimension EquivalentDose = Energy / Mass  # also: dose equivalent
dimension SpecificActivity = Activity / Mass

dimension DynamicViscosity = Pressure × Time
dimension KinematicViscosity = Length^2 / Time