Estimados alumnos del grupo 19 de Física II,

a continuación encontrarán un fragmento del Apéndice B de Matemáticas, que pertenece el texto

Physics, Serway & Jewett, e-book 2005. Espero les sea de utilidad……..GRM

SI prefixes

The 20 SI prefixes used to form decimal multiples and submultiples of SI units are given in Table 5.

Table 5. SI prefixes

Factor Name Symbol

1024

yotta Y

1021

zetta Z

1018

exa E

1015

peta P

1012

tera T

109 giga G

106 mega M

103 kilo k

102 hecto h

101 deka da

Factor Name Symbol

10-1

deci d

10-2

centi c

10-3

milli m

10-6

micro µ

10-9

nano n

10-12

pico p

10-15

femto f

10-18

atto a

10-21

zepto z

10-24

yocto y

It is important to note that the kilogram is the only SI unit with a prefix as part of its name and symbol. Because multiple prefixes may not be used, in the case of the kilogram the prefix names of Table 5 are used with the unit name "gram" and the prefix symbols are used with the unit symbol "g." With this exception, any SI prefix may be used with any SI unit, including the degree Celsius and its symbol °C.

Example 1: 10-6 kg = 1 mg (one milligram), but not 10-6 kg = 1 µkg (one microkilogram)

Example 2: Consider the height of the Washington Monument. We may write hW = 169 000 mm = 16 900 cm = 169 m = 0.169 km using the millimeter (SI prefix milli, symbol m), centimeter (SI prefix centi, symbol c), or kilometer (SI prefix kilo, symbol k).

REFERENCE:

http://www.physics.nist.gov/cuu/Units/