The kilogram per meter is the linear density of a homogeneous body of uniform section having a mass of 1 kilogram and a length of 1 metre.

( 1 kg/m = 1 kg /1 m)

The kilogram per square meter is the surface density of a homogeneous body of uniform thickness having a mass of 1 kilogram and an area of 1 square meter.

(1 kg /m² = 1 kg/1m²)

The kilogram per cubic meter is the density of a homogeneous body having a mass of 1 kilograms and a volume of 1 cubic meter.

( 1 kg/m³ = 1 kg /1 m³)

The kilogram per cubic meter is the concentration of a homogeneous solution having a total volume of one cubic meter and containing a mass of one kilogram of a given substance

( 1 kg/m³ = 1 kg/1 m³)

The newton is the force which, when appiled to a body having a mass of 1 kilogram, gives it an acceleration of 1 meter per second squared.

(1 N = 1 kg.1 m/ s² )

The newton meter is the moment of force produced in a body by a force of one newton acting at a perpendicular distance of one meter from the fixed axis around which the body turns

( 1 N.m. =1.N.1m)

The pascal is the uniform pressure which, when acting on a plane surface of 1 square meter, exercises perpendicularly to that surface a total force of 1 newton. It is also the stress which, when acting on a plane surface of 1 squaremetre, exercises on that surface a total force of 1 newton.

( 1 Pa = 1 N/1m² )

The pascal second is the dynamic viscosity of a homogeneous fluid in which the uniform linear movement of a plane surface of 1 square meter leads to a retarding force of 1 newton, when there is a difference in velocity between two parallel planes separated by a distance of 1 meter.

( 1 Pa.s = 1 Pa. 1m / 1 m/s)

The meter squared per second is the kinematic viscosity of a fluid whose dynamic viscosity is 1 pascal second and whose density is 1 kilogram per cubic meter.

( 1 m²/s = 1 Pa.s/1 kg / m²)

The newton per meter is the surface tension produced when a force of one newton sets over a length of one meter on the surface of liquid separating that liquid from the material surrounding it.

( 1N/m = 1N/1m)

The Joule is the work done when the point of application of a force of 1 newton is displaced through a distance of 1 meter in the direction of the force.

( 1 J = 1 N. 1 m)

The Watt is the power which gives rise to a production of energy equal to 1 Joule per second

( 1 W = 1 J/ 1 s)

The cubic meter per second is the volume flow rate of a uniform flow such that a substance having a volume of 1 cubic meter passes through the cross section considered in 1 second.

( 1 m³ /s = 1 m³ / 1 s)

The kg per second is the mass flow rate of a uniform flow such that a substance having a mass of 1 kilogram passes through the cross section considered in 1 second.

( 1 kg/s = 1 kg/1 s)

The cubic meter per kilogramme is the specific volume of a homogeneous body having a volume of one cubic meter and a mass of one kilogram.

( 1 m ³ /kg = 1 m ³ /1 kg)

joule per Kelvin

The Joule per Kelvin is the increase in the entropy of a system receiving a quantity of heat of 1 Joule at the constant thermodynamic temperature of 1 Kelvin provided that no irreversible change takes place in the system.

( 1 J/K = 1 J /1 K)

J / kg.K or J kg¯¹.K¯¹

joule per kilogram Kelvin

The Joule per kilogram Kelvin is the specific entropy of a system of homogeneous mass of 1 kilogram receiving a quantity of heat equal to one Joule at the constant thermodynamic temperature of one Kelvin, provided that no irreversible change takes place in the system.

( 1 J /kg.K = 1 J /1 kg. 1 K )

J / K or J.K¯¹

joule per Kelvin

The Joule per Kelvin is the heat capacity of a homogeneous body in which a quantity of heat equal to one joule produces as increases of one Kelvin in the thermodynamic temperature.

( 1 J / K = 1 J/ 1 K)

J / kg . K or J kg¯¹.K¯¹

joule per kilogram Kelvin

The Joule per kilogram Kelvin is the specific heat capacity of a homogeneous body having a mass of 1 kilogram in which the addition of a quantity of heat of 1 Joule produces a rise in temperature of 1 Kelvin.

( 1 J / kg.K = 1 J / 1 kg.1 K )

J / kg or J.kg¯¹

The Joule per kilogram is the heat exchanged by 1 kg of substances to change one phase to another at the temperature of its changing phase.

( 1 J / kg = 1 J / 1 kg )

W/m K or W.m¯¹ .K ¯¹

watt per meter kelvin

The watt per meter kelvin is the thermal conductivity of a homogeneous body in which a difference of temperature of 1 Kelvin produces a heat flow rate of 1 watt between two parallel planes having a surface of 1 square meter which are 1 meter apart.

( 1 W /m.K = (1 W/m) /(1 K/1 m) )

C

coulomb

The coulomb is the quantity of electricity carried in 1 second by current of 1 ampere.

( 1 C = 1 A .1 s = 1 As )

V

volt

The volt is the difference of electric potential between two points of a conducting wire carrying a constant current of 1 ampere, when the power dissipated between these two points is equal to 1 watt.

( 1 V= 1 W/ 1 A )

V/m

volt per meter

The volt per meter is the strength of the electric field which exercises a force of a Newton on a body charged with a quantity of electricity of 1 coulomb.

( 1 V/m = 1 N/ 1 C )

C/m³or C. m¯³

The coulomb per cubic meter is the electric charge density of a homogeneous mass or system of volume of one cubic meter and having a charge of one coulomb.

( 1 C / m³ = 1C/ 1 m³)

The coulomb per square meter is the electric flux density when a condenser, having plates of infinite length parallel to each other, is charged in vacuum with a quantity of electricity equal to one coulomb per one square meter of area of the plate.

( 1 C/m²= 1C / 1 m²)

The ohm is the electric resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points. produces in the conductor & current of 1 ampere , the conductor not being the source of any electromotive force.

( 1 ohm= 1 V/1 A)

The siemens is the conductance of a conductor having an electric resistance of 1 ohm.

( 1 S = 1 ohm¯¹ = 1 /1ohm )

The farad is the capacitance of a capacitor between the plates of which there appere a difference of electric potential of 1 volt, when it is charged by a quantity of electricity of 1 coulomb.

( 1 F = 1 C / 1 V )

The farad per meter is the permittivity of the medium which give a capacitance of one farad per square meter of area of two parallel plates separates by a distance of one meter.

( 1 F/m = 1 F / 1 m)

H / m or H.m¯¹

henry per meter

The henry per meter is the permeability of a material surrounded by a single turn of a flat sheet conductor including an area of one square meter and length one meter which gives an inductance of one henry.

( 1 H / m = 1 H / 1 m )

Wb

weber

The weber is the magnetic flux which linking a circuit of 1 turn would produce in it an electromotive force of 1 volt, if it were reduced to zero at a uniform rate in 1 second.

( 1 Wb = 1 V. 1 s )

T

The tesler is the uniform magnetic induction which, distributed normally over a surface of 1 square meter , produces across the surface a total magnetic flux of 1 weber

( 1 T = 1 Wb / 1 m² )

The ampere is the magnetomotive force along any closed curve which surrounds, once only, an electric conductor through which an electric current of 1 ampere passes.

The ampere per meter is the strength of the magnetic field produced in vacuum along the circumference of a circle of 1 meter circumference, by an electric current of 1 ampere, maintained in a straight conductor of infinite length of negligible circular cross section, forming the axis of the circle mentioned.

( 1 A.m¯¹ = 1 A / 1 m ) 

The ampere per square meter is the current density in a linear, conductor when a current of intensity one ampere flows uniformly through a cross section of the conductor equal to one square meter, perpendicular to the direction of flow of the current.

( 1 A /m² = 1 A/ 1 m² )

The watt per steradian is the radiant intensity of a point source sending uniformly a radiant flux of 1 watt in a soild angle of 1 steradian.

( 1 W/sr = 1W/ 1 sr)

The watt per square meter is the irradiance produced by radiant flux of one watt, distributed uniformly over an element having a surface of one square meter, and containing the point source.

( W/m² = 1 W / 1m² )

The watt per square meter steradian is the radiance of a source radiating one watt per steradian per square meter of projected area.

(1 W/m².sr = 1 W/ 1m².1sr )

The candela per square metre is the luminance perpendiculer to the plane surface of 1 square meter of a source of which the luminous intensity perpendicular to that surface is 1 candela

( 1 cd/m² = 1 cd / 1m² )

The lumen is the luminous flux emitted in the solid angle of 1 steradian by a uniform point source having a luminous intensity of 1 candela.

( 1 lm = 1 sd. 1 sr)

The lux is the illuminance of a surface receiving a luminous flux of 1 lumen, uniformaly distributed over 1 square meter of the surface.

( 1 lx = 1 lm / 1m²)

The becqueral is the activity of a radioactive source in which a molecular transformation or transition occurs per second

( 1 Bq = 1/ 1s )

The gray is the dose absorbed in an element of matter of 1 kilogramme mass to which the energy of 1 joule is communicated by ionizing radiation whose energy fluence to constant.

( 1 Gy = 1J / 1 kg)

The coulomb per kilogramme is the exposure of a photonic ionizing radiation which can produce in a quantity of air of 1 kilogramme mass, ions of one sign carrying a total electric charge of 1 coulomb. the energy fluence being uniform in the quantity of air considered.

( 1 C/kg = 1 C/ 1 kg)

The mole per cubic meter is the concentration of a homogeneous solution having a total volume of one cubic meter and containing one mole of the given substance.

( 1 mol/ m³ = 1 mol / 1 m³)

The joule per mole is the molar energy of one mole of substance having the energy of one joule.

( 1 J/ mol = 1 J / 1 mol)

The joule per mole kelvin is the molar entropy of a system of homogeneous mass having a substance equal to one mole receiving a quantity of heat equal to one joule at the constant thermodynamic temperature of one kelvin, provided that no irreversible change takes place in the system.

( 1 J/mol.K = 1J/1 mol.1 K)