Encyclopedia of Astrobiology

2015 Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James (Jim) CleavesII, Daniele L. Pinti, José Cernicharo Quintanilla, Daniel Rouan, Tilman Spohn, Stéphane Tirard, Michel Viso

General Data

Reference work entry
DOI: https://doi.org/10.1007/978-3-662-44185-5_5068

International System Units

Basic units

Name

Symbol

 

Length

Meter

m

 

Mass

Kilogram

kg

 

Time

Second

s

 

Electric current

Ampere

A

 

Thermodynamic temperature

Kelvin

K

 

Amount of substance

Mole

mol

 

Luminous intensity

Candela

cd

 

Additional units

Name

Symbol

 

Plane angle

Radian

rad

 

Solid angle

Steradian

sr

 

Derived units

Name

Symbol

 

Energy

Joule

J

m2 kg s−2 ≡ N m

Force

Newton

N

m kg s−2 ≡ J m−1

Pressure

Pascal

Pa

m−1 kg s−2 ≡ N m−2

Electric charge

Coulomb

C

s A

Magnetic flux

Weber

Wb

m2 kg s−2A−1

Magnetic flux density

Tesla

T

kg s−2 A−1 ≡ V s m−2

Magnetic field strength

   

A m−1

Inductance

Henry

H

m2 kg s−2 A−2

Power

Watt

W

m2 kg s−2 ≡ J s−1

Electric potential difference

Volt

V

m2 kg s−3 A ≡ J C−1

Frequency

Hertz

Hz

s−1

This is a preview of subscription content, log in to check access.

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.CNRS-Universite de Bordeaux, Laboratoire d’Astrophysique de BordeauxFloiracFrance
  2. 2.University of MassachusettsAmherstUSA