|
Physical quantity equation
|
Symbol
|
Dimension
|
Measurement (in S.I.)
|
Unit
|
|
area
|
A
|
L2
|
square meter
|
m2
|
|
volume
|
V
|
L3
|
cubic meter
|
m3
|
|
velocity
|
v
|
L/T
|
meter per second
|
m/sec
|
|
angular velocity
|
Ω
|
1/T
|
radians per second
|
1/sec
|
|
acceleration
|
a
|
L/T2
|
meter per square second
|
m/sec2
|
|
angular acceleration
|
α
|
1/T2
|
radians per square
second
|
1/sec2
|
|
force
|
F
|
ML/T2
|
Newton
|
Kg m/sec2
|
|
energy
|
E
|
ML2/T2
|
Joule
|
Kg m2/sec2
|
|
work
|
W
|
ML2/T2
|
Joule
|
Kg m2/sec2
|
|
heat
|
Q
|
ML2/T2
|
Joule
|
Kg m2/sec2
|
|
torque
|
Τ
|
ML2/T2
|
newton meter
|
Kg m2/sec2
|
|
power
|
P
|
ML2/T3
|
watt or joule/sec
|
Kg m2/sec3
|
|
density
|
D or r
|
M/L3
|
kilogram per
cubic meter
|
Kg/m3
|
|
pressure
|
P
|
ML-1/T2
|
newton per square meter
|
Kg m-1/sec2
|
|
impulse
|
p
|
ML/T
|
newton second
|
Kg m/sec
|
|
inertia
|
I
|
ML2
|
Kilogram square meter
|
Kg m2
|
|
luminous
flux
|
Φ
|
C
|
lumen (4Pi candle for point source)
|
cd sr
|
|
Illumination
|
E
|
C/L2
|
lumen per
square meter
|
cd sr/m2
|
|
entropy
|
S
|
ML2/T2K
|
joule per degree
|
Kg m2/sec2K
|
|
volume
rate of flow
|
Q
|
L3/T
|
cubic meter
per second
|
m3/sec
|
|
kinematics
viscosity
|
ν
|
L2/T
|
square meter
per second
|
m2/sec
|
|
dynamic
viscosity
|
μ
|
M/LT
|
newton second
per square meter
|
Kg/m sec
|
|
specific
weight
|
γ
|
M/L2 T2
|
newton
per cubic meter
|
Kg m-2/sec2
|
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