Astronomy   View all facts   Glossary   Help
abstraction > mathematical concept > unit > energy unit
Next unitforce unit    Upunit    Previous unitelectromagnetic unit   

energy unit comparison table
Subject has proposer is an acronym for is an instance of has proposal date has approval date is equivalent to has equivalent has synonym has name origin has unit has base unit has value in SI unit has approval agency has definition has symbol is named after
electron volt  non SI unit  1.6 × 10-19 joules160.219 × 10-21 joule      Unit of energy used in atomic and nuclear physics; the kinetic energy acquired by one electron in passing through a potential difference of 1 volt in vacuum. Sometimes used as a unit of mass (see rest-mass energy)eV 
ergBritish Association CGS unit1873  1 g cm2 s-2dyne cmGreek verb 'to work'    Unit of energy; the work done by a force of 1 dyne acting over a distance of 1 cm.  
jouleBritish AssociationSyteme Internationalenamed derived SI unit18881948 9.47 × 10-9 therm  N·mm2kg·s-2 International Conference on Weights and MeasuresUnit of energy, work, or quantity of heat. 1 J is equal to a force of 1 newton acting over a distance of 1 meter. 1 J = 107 ergs.JJ. P. Joule
rydberg  energy unit          Unit of energy (R = h bar3c / me4) equal to 13.5978 eV (the ionization potential of hydrogen). Rydberg correction has definition  

Next unitforce unit    Upunit    Previous unitelectromagnetic unit