vyutpann maatrak 
chinh 
vivran 
SI maatrak 
vima 
tippani 
kon 
θ 
Measure of a change in direction or orientation. 
rediyn 
1 

thos kon 
Ω 
Measure of the size of an object as projected on a sphere. 
sterediyn (sr) 
1 

Absorbed dose rate 

Absorbed dose received per unit of time. 
Gy s^{−1}

L^{2} T^{−3}


Acceleration 
a 
Rate of change of the speed or velocity of an object. 
m s^{−2}

L T^{−2}

scalar or vector 
Angular acceleration 
α 
Rate of change in angular speed or velocity. 
rad s^{−2}

T^{−2}


Angular speed (or angular velocity) 
ω or ω

The angle incremented in a plane by a segment connecting an object and a reference point. 
rad s^{−1}

T^{−1}

scalar or pseudovector 
Angular momentum 
L 
Measure of the extent and direction and object rotates about a reference point. 
kg m^{2} s^{−1}

M L^{2} T^{−1}

conserved quantity, pseudovector 
Area 
A 
The two dimensional extent of an object. 
m^{2}

L^{2}


Area density 
ρ_{A} 
The amount of mass per unit area of a two dimensional object. 
kg m^{−2}

M L^{−2}


Capacitance 
C 
Measure for the amount of stored charge for a given potential. 
farad (F = A^{2} s^{4} kg^{−1} m^{−2}) 
I^{2} T^{4} M^{−1} L^{−2}


Catalytic activity 

Change in reaction rate due to presence of a catalyst. 
katal (kat = mol s^{−1}) 
N T^{−1}


Catalytic activity concentration 

Change in reaction rate due to presence of a catalyst per unit volume of the system. 
kat m^{−3}

N L^{−3} T^{−1}


Chemical potential 
μ 
The amount of energy needed to add a particle to a system. 
J mol^{−1}

M L^{2} T^{−2} N^{−1}

intensive 
Molar concentration 
C 
Amount of substance per unit volume. 
mol m^{−3}

N L^{−3}

intensive 
Current density 
J 
Amount of electric current flowing through a surface. 
A m^{−2}

I L^{−2}


Dose equivalent 
H 
Measure for the received amount of radiation adjusted for the effect of different types of radiant on biological tissue. 
sievert (Sv = m^{2} s^{−2}) 
L^{2} T^{−2}


Dynamic Viscosity 
η 
Measure for the resistance of an incompressible fluid to stress. 
Pa s 
M L^{−1} T^{−1}


Electric Charge 
Q 
Amount of electric charge. 
coulomb (C = A s) 
I T

extensive, conserved quantity 
Electric charge density 
ρ_{Q} 
Amount of electric charge per unit volume. 
C m^{−3}

I T L^{−3}

intensive 
Electric displacement 
D 
Strength of the electric displacement. 
C m^{−2}

I T L^{−2}

vector field 
Electric field strength 
E 
Strength of the electric field. 
V m^{−1}

M I^{−1} L^{2} T^{−3}

vector field 
Electrical conductance 
G 
Meausure for how easily current flows through a material. 
siemens (S = A^{2} s^{3} kg^{−1} m^{−2}) 
L^{−2} M^{−1} T^{3} I^{2}

scalar 
Electric potential 
V 
The amount of work required to bring a unit charge into an electric field from infinity. 
volt (V = kg m^{2} A^{−1} s^{−3}) 
L^{2} M T^{−3} I^{−1}

scalar 
Electrical resistance 
R 
The degree to which an object opposes the passage of an electric current. 
ohm (Ω = kg m^{2} A^{−2} s^{−3}) 
L^{2} M T^{−3} I^{−2}

scalar 
Energy 
E 
The capacity of a body or system to do work. 
joule (J = kg m^{2} s^{−2}) 
M L^{2} T^{−2}

extensive, scalar, conserved quantity 
Energy density 
ρ_{E} 
Amount of energy per unit volume. 
J m^{−3}

M L^{−1} T^{−2}

intensive 
Entropy 
S 
Measure for the amount of available states for a system. 
J K^{−1}

M L^{2} T^{−2} Θ^{−1}

extensive, scalar 
Force 
F 
The cause of acceleration, acting on an object. 
newton (N = kg m s^{−2}) 
M L T^{−2}

vector 
Impulse 
p 
The cause of a change in momentum, acting on an object. 
kg m s^{−1}

M L T^{−1}

vector 
Frequency 
f 
The number of times something happens in a period of time. 
hertz (Hz =s^{−1}) 
T^{−1}


Halflife 
t_{1/2} 
The time needed for a quantity to decay to half its original value. 
s 
T 

Heat 
Q 
Amount of energy transferred between systems due to temperature difference. 
J 
M L^{2} T^{−2}


Heat capacity 
C_{p} 
Amount of energy needed to raise the temperature of a system by one degree. 
J K^{−1}

M L^{2} T^{−2} Θ^{−1}

extensive 
Heat flux density 
ϕ_{Q} 
Amount of heat flowing through a surface per unit area. 
W m^{−2}

M T^{−3}


Illuminance 
E_{v} 
Total luminous flux incident to a surface per unit area. 
lux (lx = cd sr m^{−2}) 
J L^{−2}


Impedance 
Z 
Measure for the resistance of an electrical circuit against an alternating current. 
ohm (Ω = kg m^{2} A^{−2} s^{−3}) 
L^{2} M T^{−3} I^{−2}

complex scalar 
Index of refraction 
n 
The factor by which the speed of light is reduce in a medium. 

1 
intensive 
Inductance 
L 
Measure for the amount of magnetic flux generated for a certain current run through a circuit. 
henry (H = kg m^{2} A^{−2} s^{−2}) 
M L^{2} T^{−2} I^{−2}


Irradiance 
E 
Power of electromagnetic radiation flowing through a surface per unit area. 
W m^{−2}

M T^{−2}


Linear density 
ρ_{l} 
Amount of mass per unit length of a one dimensional object. 

M L^{−1}


Luminous flux (or luminous power) 
F 
Perceived power of a light source. 
lumen (lm = cd sr) 
J 

Magnetic field strength 
H 
Strength of a magnetic field in a material. 
A m^{−1}

I L^{−1}

vector field 
Magnetic flux 
Φ 
Measure of quantity of magnetism, taking account of the strength and the extent of a magnetic field. 
weber (Wb = kg m^{2} A^{−1} s^{−2}) 
M L^{2} T^{−2} I^{−1}

scalar 
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 
Magnetization 
M 
Amount of magnetic moment per unit volume. 
A m^{−1}

I L^{−1}

vector field 
Mass fraction 
x 
Mass of a substance as a fraction of the total mass. 
kg/kg 
1 
intensive 
(Mass) Density (volume density) 
ρ 
The amount of mass per unit volume of a three dimensional object. 
kg m^{−3}

M L^{−3}

intensive 
Mean lifetime 
τ 
Average time needed for a particle to decay. 
s 
T 
intensive 
Molar energy 

Amount of energy present is a system per unit amount of substance. 
J mol^{−1}

M L^{2} T^{−2} N^{−1}

intensive 
Molar entropy 

Amount of entropy present in a system per unit amount of substance. 
J K^{−1} mol^{−1}

M L^{2} T^{−2} Θ^{−1} N^{−1}

intensive 
Molar heat capacity 
c 
Heat capacity of a material per unit amount of substance. 
J K^{−1} mol^{−1}

M L^{2} T^{−2} N^{−1}

intensive 
Moment of inertia 
I 
Inertia of an object with respect to angular acceleration. 
kg m^{2}

M L^{2}

scalar 
Momentum 
p 
Product of an object's mass and velocity. 
N s 
M L T^{−1}

vector, extensive 
Permeability 
μ 
Measure for how the magnetization of material is affected by the application of an external magnetic field. 
H m^{−1}

M L^{−1} I^{−2}

intensive 
Permittivity 
ε 
Measure for how the polarization of a material is affected by the application of an external electric field. 
F m^{−1}

I^{2} M^{−1} L^{−2} T^{4}

intensive 
Power 
P 
The rate of change in energy over time. 
watt (W) 
M L^{2} T^{−3}

extensive 
Pressure 
p 
Amount of force per unit area. 
pascal (Pa = kg m^{−1} s^{−2}) 
M L^{−1} T^{−2}

intensive 
(Radioactive) Activity 
A 
Number of particles decaying per unit time. 
becquerel (Bq = s^{−1}) 
T^{−1}

extensive 
(Radioactive) Dose 
D 
Amount of energy absorbed by biological tissue from ionizing radiation per unit mass. 
gray (unit) (Gy = m^{2} s^{−2}) 
L^{2} T^{−2}


Radiance 
L 
Power of emitted electromagnetic radiation per solid angle and per projected source area. 
W m^{−2} sr^{−1}

M T^{−3}


Radiant intensity 
I 
Power of emitted electromagnetic radiation per solid angle. 
W sr^{−1}

M L^{2} T^{−3}

scalar 
Reaction rate 
r 
Measure for speed of a chemical reaction. 
mol m^{−3} s^{−1}

N L^{−3} T^{−1}

intensive 
Speed 
v 
Rate of change of the position of an object. 
m s^{−1}

L T^{−1}

scalar 
Specific energy 

Amount of energy present per unit mass. 
J kg^{−1}

L^{2} T^{−2}

intensive 
Specific heat capacity 
c 
Heat capacity per unit mass. 
J kg^{−1} K^{−1}

L^{2} T^{−2} Θ^{−1}

intensive 
Specific volume 
v 
The volume occupied by a unit mass of material (reciprocal of density). 
m^{3} kg^{−1}

L^{3} M^{−1}

intensive 
Spin 
S 
Intrinsic property of particles, roughly to be interpreted as the intrinsic angular momentum of the particle. 
kg m^{2} s^{−1}

M L^{2} T^{−1}


Stress 
σ 
Amount of force exerted per surface area. 
Pa 
M L^{−1} T^{−2}

2tensor. (or scalar) 
Surface tension 
γ 
Amount of work needed to change the surface of a liquid by a unit surface area. 
N m^{−1} or J m^{−2}

M T^{−2}


Thermal conductivity 
k 
Measure for the ease with which a material conducts heat. 
W m^{−1} K^{−1}

M L^{−1} T^{−3} Θ^{−1}

intensive 
Torque (moment of force) 
T 
Product of a force and the perpendicular distance of the force from the point about which it is exerted. 
N m 
M L^{2} T^{−2}

pseudovector 
Velocity 
v 
Speed of an object in a chosen direction. 
m s^{−1}

L T^{−1}

vector 
Volume 
V 
The three dimensional extent of an object. 
m^{3}

L^{3}

extensive 
Wavelength 
λ 
Distance between repeating units of a propagating wave. 
m 
L 

Wavenumber 
k 
Reciprocal of the wavelength. 
m^{−1}

L^{−1}


Weight 
w 
Amount of gravitation force exerted on an object. 
newton (N = kg m s^{−2}) 
M L T^{−2}


Work 
W 
Energy dissipated by a force moving over a distance, scalar product of the force and the movement vector. 
joule (J = kg m^{2} s^{−2}) 
M L^{2} T^{−2}

scalar 