Physical Quantity |
Symbol |
Name
of unit |
Symbol
of unit |
|
length |
l |
metre |
m |
|
area |
A |
square
metre |
m2 |
|
volume |
V |
cubic
metre |
m3 |
|
mass |
m |
kilogram |
kg |
|
density |
|
kilogram
per cubic metre |
kg
m-3 |
|
time |
t |
second |
s |
|
speed |
v |
metre
per second |
m
s-1 |
|
velocity |
v |
metre
per second |
m
s-1 |
|
acceleration |
a |
metre
per second squared |
m
s-2 |
|
temperature |
t |
degree
Celsius |
oC |
|
force |
F |
newton |
N |
|
weight |
W |
newton |
N |
|
pressure |
P,p |
newton
per metre squared |
N
m-2 |
|
work |
W |
joule |
J |
|
energy |
E |
joule |
J |
|
|
|
kilowatt-hour |
kW
h |
|
power |
P |
watt |
W |
|
electric
current |
I |
ampere |
A |
|
potential
difference |
V |
volt |
V |
|
resistance |
R |
ohm |
|
|
atomic
number |
Z |
no
unit |
|
|
atomic
mass |
|
atomic
mass unit |
a.m.u. |
Abbreviations
The
following abbreviations should be used:
|
potential
difference |
pd |
|
light-emitting
diode |
LED |
|
light-dependent
resistor |
LDR |
|
proton |
p |
|
electron |
e- |
|
neutron |
n |
|
|
DNA |
|
|
pH |
