List of physical quantities

Table columns:
Derived quantity
Symbol
Description
SI derived unit
Dimension
Comments

Table rows:
cells: Absement
A
Measure of sustained displacement: the first integral of displacement
m s
L T
vector
cells: Absorbed dose rate
Absorbed dose received per unit of time
Gy s−1
L2 T−3
cells: Acceleration
a→
Change of the speed or velocity per unit time
m s−2
L T−2
vector
cells: Angular acceleration
α
Change in angular speed or velocity per unit time
rad s−2
T−2
cells: Angular momentum
L
Measure of the extent and direction an object rotates about a reference point
kg m2 s−1
M L2 T−1
conserved quantity, pseudovector
cells: Angular speed (or angular velocity)
ω
The angle incremented in a plane by a segment connecting an object and a reference point per unit time
rad s−1
T−1
scalar or pseudovector
cells: Area
A
Extent of a surface
m2
L2
scalar
cells: Area density
ρA
Mass per unit area
kg m−2
M L−2
cells: Capacitance
C
Stored charge per unit electric potential
farad (F = A2 s4 kg−1 m−2)
M−1 L−2 T4 I2
scalar
cells: Catalytic activity
Change in reaction rate due to presence of a catalyst
katal (kat = mol s−1)
T−1 N
cells: Catalytic activity concentration
Change in reaction rate due to presence of a catalyst per unit volume of the system
kat m−3
L−3 T−1 N
cells: Chemical potential
μ
Energy per unit change in amount of substance
J mol−1
M L2 T−2 N−1
intensive
cells: Crackle
c→
Change of jounce per unit time: the fifth time derivative of position
m s−5
L T−5
vector
cells: Current density
J →
Electric current per unit cross-section area
A m−2
L−2 I
vector
cells: Dose equivalent
H
Received radiation adjusted for the effect on biological tissue
sievert (Sv = m2 s−2)
L2 T−2
cells: Dynamic viscosity
η
Measure for the resistance of an incompressible fluid to stress
Pa s
M L−1 T−1
cells: Electric charge
Q
The force per unit electric field strength
coulomb (C = A s)
T I
extensive, conserved quantity
cells: Electric charge density
ρQ
Electric charge per unit volume
C m−3
L−3 T I
intensive
cells: Electric displacement
D
Strength of the electric displacement
C m−2
L−2 T I
vector field
cells: Electric field strength
E→
Strength of the electric field
V m−1
M L T−3 I−1
vector field
cells: Electrical conductance
G
Measure for how easily current flows through a material
siemens (S = A2 s3 kg−1 m−2)
M−1 L−2 T3 I2
scalar
cells: Electrical conductivity
σ
Measure of a material's ability to conduct an electric current
S m−1
M−1 L−3 T3 I2
scalar
cells: Electric potential
V
Energy required to move a unit charge through an electric field from a reference point
volt (V = kg m2 A−1 s−3)
M L2 T−3 I−1
extensive, scalar
cells: Electrical resistance
R
Electric potential per unit electric current
ohm (Ω = kg m2 A−2 s−3)
M L2 T−3 I−2
extensive, scalar, assumes linearity
cells: Electrical resistivity
ρ
Bulk property equivalent of electrical resistance
ohm metre (Ω⋅m = kg m3 A−2 s−3)
M L3 T−3 I−2
intensive, scalar
cells: Energy
E
Capacity of a body or system to do work
joule (J = kg m2 s−2)
M L2 T−2
extensive, scalar, conserved quantity
cells: Energy density
ρE
Energy per unit volume
J m−3
M L−1 T−2
intensive
cells: Entropy
S
Logarithmic measure of the number of available states of a system
J K−1
M L2 T−2 Θ−1
extensive, scalar
cells: Force
F→
Transfer of momentum per unit time
newton (N = kg m s−2)
M L T−2
extensive, vector
cells: Frequency
f
Number of (periodic) occurrences per unit time
hertz (Hz = s−1)
T−1
scalar
cells: Fuel efficiency
Distance traveled per unit volume of fuel
L−2
scalar
cells: Half-life
t1/2
Time for a quantity to decay to half its initial value
s
T
cells: Heat
Q
Thermal energy
joule (J)
M L2 T−2
cells: Heat capacity
Cp
Energy per unit temperature change
J K−1
M L2 T−2 Θ−1
extensive
cells: Heat flux density
ϕQ
Heat flow per unit time per unit surface area
W m−2
M T−3
cells: Illuminance
Ev
Luminous flux per unit surface area
lux (lx = cd sr m−2)
L−2 J
cells: Impedance
Z
Resistance to an alternating current of a given frequency, including effect on phase
ohm (Ω = kg m2 A−2 s−3)
M L2 T−3 I−2
complex scalar
cells: Impulse
p→
Transferred momentum
newton second (N⋅s = kg m s−1)
M L T−1
vector
cells: Inductance
L
Magnetic flux generated per unit current through a circuit
henry (H = kg m2 A−2 s−2)
M L2 T−2 I−2
scalar
cells: Irradiance
E
Electromagnetic radiation power per unit surface area
W m−2
M T−3
cells: Intensity
I
Power per unit cross sectional area
W m−2
M T−3
cells: Jerk
j→
Change of acceleration per unit time: the third time derivative of position
m s−3
L T−3
vector
cells: Jounce (or snap)
s→
Change of jerk per unit time: the fourth time derivative of position
m s−4
L T−4
vector
cells: Linear density
ρl
Mass per unit length
M L−1
cells: Luminous flux (or luminous power)
F
Perceived power of a light source
lumen (lm = cd sr)
J
cells: Mach number (or mach)
M
Ratio of flow velocity to the local speed of sound
unitless
1
cells: Magnetic field strength
H
Strength of a magnetic field
A m−1
L−1 I
vector field
cells: Magnetic flux
Φ
Measure of magnetism, taking account of the strength and the extent of a magnetic field
weber (Wb = kg m2 A−1 s−2)
M L2 T−2 I−1
scalar
cells: Magnetic flux density
B
Measure for the strength of the magnetic field
tesla (T = kg A−1 s−2)
M T−2 I−1
pseudovector field
cells: Magnetization
M
Amount of magnetic moment per unit volume
A m−1
L−1 I
vector field
cells: Mass fraction
x
Mass of a substance as a fraction of the total mass
kg/kg
1
intensive
cells: (Mass) Density (or volume density)
ρ
Mass per unit volume
kg m−3
M L−3
intensive
cells: Mean lifetime
τ
Average time for a particle of a substance to decay
s
T
intensive
cells: Molar concentration
C
Amount of substance per unit volume
mol m−3
L−3 N
intensive
cells: Molar energy
Amount of energy present in a system per unit amount of substance
J mol−1
M L2 T−2 N−1
intensive
cells: Molar entropy
Entropy per unit amount of substance
J K−1 mol−1
M L2 T−2 Θ−1 N−1
intensive
cells: Molar heat capacity
c
Heat capacity of a material per unit amount of substance
J K−1 mol−1
M L2 T−2 N−1
intensive
cells: Moment of inertia
I
Inertia of an object with respect to angular acceleration
kg m2
M L2
tensor, scalar
cells: Momentum
p→
Product of an object's mass and velocity
N s
M L T−1
vector, extensive
cells: Permeability
μ
Measure for how the magnetization of material is affected by the application of an external magnetic field
H m−1
M L T−2 I−2
intensive
cells: Permittivity
ε
Measure for how the polarization of a material is affected by the application of an external electric field
F m−1
M−1 L−3 T4 I2
intensive
cells: Plane angle
θ
Ratio of circular arc length to radius
radian (rad)
1
cells: Power
P
Rate of transfer of energy per unit time
watt (W)
M L2 T−3
extensive, scalar
cells: Pressure
p
Force per unit area
pascal (Pa = kg m−1 s−2)
M L−1 T−2
intensive, scalar
cells: Pop
p→
Rate of change of crackle per unit time: the sixth time derivative of position
m s−6
L T−6
vector
cells: (Radioactive) Activity
A
Number of particles decaying per unit time
becquerel (Bq = s−1)
T−1
extensive, scalar
cells: (Radioactive) Dose
D
Ionizing radiation energy absorbed by biological tissue per unit mass
gray (Gy = m2 s−2)
L2 T−2
cells: Radiance
L
Power of emitted electromagnetic radiation per unit solid angle per emitting source area
W m−2 sr−1
M T−3
cells: Radiant intensity
I
Power of emitted electromagnetic radiation per unit solid angle
W sr−1
M L2 T−3
scalar
cells: Reaction rate
r
Rate of a chemical reaction for unit time
mol m−3 s−1
N L−3 T−1
intensive, scalar
cells: Refractive index
n
Factor by which the phase velocity of light is reduced in a medium
unitless
1
intensive, scalar
cells: Solid angle
Ω
Ratio of area on a sphere to its radius squared
steradian (sr)
1
cells: Speed
v
Moved distance per unit time: the first time derivative of position
m s−1
L T−1
scalar
cells: Specific energy
Energy density per unit mass
J kg−1
L2 T−2
intensive
cells: Specific heat capacity
c
Heat capacity per unit mass
J kg−1 K−1
L2 T−2 Θ−1
intensive
cells: Specific volume
v
Volume per unit mass (reciprocal of density)
m3 kg−1
M−1 L3
intensive
cells: Spin
S
Quantum-mechanically defined angular momentum of a particle
kg m2 s−1
M L2 T−1
cells: Strain
ε
Extension per unit length
unitless
1
cells: Stress
σ
Force per unit oriented surface area
Pa
M L−1 T−2
order 2 tensor
cells: Surface tension
γ
Energy change per unit change in surface area
N m−1 or J m−2
M T−2
cells: Thermal conductivity
k
Measure for the ease with which a material conducts heat
W m−1 K−1
M L T−3 Θ−1
intensive
cells: Torque
τ
Product of a force and the perpendicular distance of the force from the point about which it is exerted
newton metre (N m)
M L2 T−2
bivector (or pseudovector in 3D)
cells: Velocity
v→
Speed and direction of an object
m s−1
L T−1
vector
cells: Volume
V
Three dimensional extent of an object
m3
L3
extensive, scalar
cells: Wavelength
λ
Perpendicular distance between repeating units of a wave
m
L
cells: Wavenumber
k
Repetency or spacial frequency: the number of cycles per unit distance
m−1
L−1
scalar
cells: Wavevector
k→
Repetency or spacial frequency vector: the number of cycles per unit distance
m−1 with direction
L−1
vector
cells: Weight
w
Gravitational force on an object
newton (N = kg m s−2)
M L T−2
vector
cells: Work
W
Transferred energy
joule (J = kg m2 s−2)
M L2 T−2
scalar
cells: Young's modulus
E
Ratio of stress to strain
pascal (Pa = kg m−1 s−2)
M L−1 T−2
scalar; assumes isotropic linear material

Questions about this table:
originalText: volt is the unit for which physical quantity
answer: answerTexts: Electric potential