Grandezze fondamentali e derivate del Sistema Internazionale di misura
BASIC UNITS
DIMENSION UNIT SYMBOL
Length meter m
Mass kilogram kg
Time second s
Electric current ampere A
Temperature, thermodynamic degree kelvin K
Amount of matter mole mol
Angle radian rad
Solid angle steradian sr
Luminous intensity candela cd
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SOME DERIVED SI UNITS
QUANTITY UNITS SYMBOL BASIC UNITS
Area square meter m2
Volume cubic meter m3
Frequency Hertz, cycles per second Hz 1/s
Density kilogram per cubic meter kg/m3
Velocity meter/sec m/s
Angular velocity radian/sec rad/s
Acceleration meter/second squared m/s2
Angular acceleration radians per second square rad/s2
Volumetric flow rate cubic meter per second m3/s
Mass flow rate kg per second kg/s
Force Newton N kg-m/s2
Surface Tension Newton per meter N/m kg/s2
Pressure, stress Pascal (Newton per square meter) Pa (N/m2) kg/m-s2
Dynamic viscosity Newton-second per square meter N-s/m2 kg/m-s2
Kinematic viscosity meter squared per second m2/s
Work, energy joule, newton-meter, watt-second J, N-m, W-s kg-m2/s2
Power watt, joule per second W, J/s kg-m2/s3
Specific heat, gas constant joule per kilogram degree J/kg-K m2/s2-K
Enthalpy joule per kilogram J/kg m2/s2
Entropy joule per kilogram degree J/kg-K m2/s2-K
Thermal conductivity watt per meter degree W/m-K kg-m/s3-K
Diffusion coefficient meter squared per second m2/s
Electrical charge coulomb C A-s
Electromotive force volt V kg-m2/A-s3
Electric field strength volt per meter V/m kg-m/A-s3
Electric resistance ohm ohm kg-m2/A2-s3
Electric Conductivity amperes per volt meter A/V-m A2-s3/kg-m3
Electric capacitance farad F A2-s4/kg-m2
magnetic flux Weber Wb kg-m2/s2-A
Inductance henry H kg-m2/s2-A2
Magnetic flux density tesla T kg/s2-A
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