Brochure

A. Units
114
A. Units
Some of the SI system’s units
Additional units
Unit for Name Unit Definition
Angle radian rad
One radian is the angle subtended at the centre of a
circle by an arc of circumference that is equal in length
to the radius of the circle..
Derived units
Unit for Name Unit Definition
Force Newton N
2
s/mkgN ⋅ =
Pressure Pascal Pa
)sm/(kgm/NPa
22
⋅ ==
Energy, work Joule J
sWmNJ ⋅ = ⋅ =
Power Watt W
s/mNs/JW ⋅ = ==
Impulse
Torque
s/mkg ⋅
mN ⋅
sm /Kg
2 3
⋅
Basic units
Unit for Name Unit
Length meter m
Mass kilogram kg
Time second S
Temperature Kelvin K
Basic units