Units and Measurements

measurement

it is a process of determining how large or small a physical quantity is compared to a basic reference standard.

how to express measurement?

unit and magnitude

fundamental physical quantities

quantities which do not depend on other physical quantities to define themselves.

fundamental physical quantities a.k.a?

S.I Base quatities

S.I unit of Length

metre (m)

S.I of Mass

kilogram (kg)

S.I of Time

second (s)

S.I of Temperature

Kelvin (K)

S.I of Electric current

Ampere (A)

S.I of Luminous Intensity

candela (cd)

S.I of Amount of substance

mole (mol)

S.I of Plane Angle

radian (rd)

S.I of Solid angle

sterad ian (sr)

seven dimensions?

[L], [M], [T], [K], [A], [cd], [mol]

what are dimensions?

dimensions of a physical quantity are the powers tow which the base quantities are raised to represent that quantity

Whats d