Table 1-1 SI Base units Quantity Name Symbol Time Second Length Meter Mass Kilogram Kg Amount of Mole Mol substance Temperature Kelvin Electric current Ampere K—A Luminous intensity Candela cdTable 1-1 SI Base units Quantity Name Symbol Time Second s Length Meter m Mass Kilogram Kg Amount of substance Mole Mol Temperature Kelvin K Electric current Ampere A Luminous intensity Candela cd