Appendix B

The international system of units (SI)

QUANTITY NAME

SYMBOL

 

SI prefixes

Factor Prefix Symbol
amount of substance
capacitance
conductance
electric charge
electric current
electric potential
electric resistance
electromotive force

energy
force
frequency
inductance
length
luminous intensity
magnetic field
magnetic flux
mass
potential difference
power
pressure
quantity of electricity
quantity of heat
radiant flux
thermodynamic temperature
time
work
mole
farad
siemens
coulomb
ampere
volt
ohm
volt
joule
newton
hertz
henry
metre
candela
tesla
weber
kilogram
volt
watt
pascal
coulomb
joule
watt
kelvin
second
joule
mol
F
S
C
A
V

V
J

N
Hz
H
m
cd
T
Wb
kg
V
W
Pa
C
J
W
K
s
J
1018 exa E
1015 peta P
1012 tera T
109 giga G
106 mega M
103 kilo k
102 hecto h
101 deca da
10-1 deci d
10-2 centi c
10-3 milli m
10-6 micro
10-9 nano n
10-12 pico p
10-15 femto f
10-18 atto a

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