Begin2.DVI

APPENDIX A

Units of Measurement

The following units, abbreviations and prefixes are from the

Syst`eme International d’Unit`es (designated SI in all Languages.)

Prefixes.

Abbreviations

Prefix Multiplication factor Symbol

exa 1018 W

peta 1015 P

tera 1012 T

giga 109 G

mega 106 M

kilo 103 K

hecto 102 h

deka 10 da

deci 10 −^1 d

centi 10 −^2 c

milli 10 −^3 m

micro 10 −^6 μ

nano 10 −^9 n

pico 10 −^12 p

femto 10 −^15 f

atto 10 −^18 a

Basic Units.

Basic units of measurement

Unit Name Symbol

Length meter m

Mass kilogram kg

Time second s

Electric current ampere A

Temperature degree Kelvin ◦K

Luminous intensity candela cd

Supplementary units

Unit Name Symbol

Plane angle radian rad

Solid angle steradian sr

Appendix A