Table Of SI Units
vector quantities are in bold type
QUANTITY
VARIABLE
UNIT
(“the thing being measured…”)
(…” represented in
(The international scientific community
equations as:”)
has agreed to measure this quantity in
a specific amount known as a)
BASE
displacement
mass
time
electric current
QUANTITIES:
d (or s)
m
t
I
meter (m)
kilogram (kg)
second (s)
ampere (A)
DERIVED QUANTITIES:
velocity
acceleration
force
momentum
gravitational field strength
(“acceleration due to gravity”)
pressure
v
a
F
p
g
P
energy (in general)
kinetic energy
potential energy
heat
work
power
E
K (or KE)
U (or PE)
Q
W
P
angle
angular velocity
angular acceleration
torque
rotational Inertia
angular momentum
θ
ω
α
τ
I
L
period
frequency
wavelength
T
f
λ
meter per second (m/s)
meter per second per second (m/s2)
newton (N) = (kg⋅m/s2)
kilogram-meter per second(kg⋅m/s)
newtons per kilogram (N/kg)
= (m/s2)
pascal (Pa) = newton per meter square
(N/m2) = (kg/m·s2)
joule (J)= newton-meter = (kg·m2/s2)
joule (J)= newton-meter (N⋅m)
joule (J)= newton-meter (N⋅m)
joule (J)= newton-meter (N⋅m)
joule (J)= newton-meter (N⋅m)
watt (W) = joule per second (J/s) =
(kg⋅m2/s3)
radian (rad) = meter per meter (m/m)
radians per second (rad/s )
radians per second per sec (rad/s2)
newton meter (N⋅m)
kilogram-meter squared (kg⋅m2)
kilogram meter-meter per second
(kg⋅m2/s)
second (s)
hertz (Hz) = s-1
meter (m)
emf (electric potential difference,
or “voltage”)
electric charge
resistivity
resistance
capacitance
electric field strength
magnetic field strength
E or V
volt (V) = (kg⋅m2/C⋅s2)
Q or q
ρ
R
C
E
B
coulomb (C) = amp-sec (A⋅s)
ohm-meter (Ωm)
ohm (Ω) = volt per ampere (V/A)
farad (F) = coulomb per volt (C/V)
newton per coulomb (N/C)
tesla (T) = (N/C(m/s))