Physics
PHYSICS FORMULAE AND PRINCIPLES

Fundamental quantities and SI units

The standard units were set up by the international system of units, SI

The fundamental quantities, there symbols and there SI units a listed below

Quantity symbol SI unit & unit symbol

Length l metre (m)

Mass m kilogram (k g)

Time t second (s)

Temperature T Kelvin (k)

Current I Ampere (A)

Amt. substance mol mole 6.02 x 10 23 (molecules)

Luminous intensity - candela (c d)

MULTIPLES AND SUBMULTIPLES

Multiples are larger than the base units and submultiples are smaller than the base units

Multiples Symbol Prefix Meaning Example

Deca d 10 1 0 Decameter

Hecto h 102 100 Hectometer

Kilo k 103 1 000 Kilogram

Mega M 106 1 000 000 Megawatt

Giga G 109 1 000 000 000