Summary Class 11 unit and dimension short notes for quick revision

Unit and dimension class 11 5 minute revision note
CHAPTER: UNITS & DIMENSIONS (Short Premium Notes)




1. Physical Quantity


Quantities that can be expressed with numbers and units are
called Physical Quantities.


Types:


Fundamental Quantity


Derived Quantity




2. Fundamental Quantities (SI Base)


Here's the table you requested:

, Quantity Unit Symbol

Length Meter m

Mass Kilogram kg

Time Second s

Electric Current Ampere A

Temperature Kelvin K

Amount of Substance Mole mol

Luminous Intensity Candela cd




3. Derived Quantity


Obtained from fundamental quantities.


Example:


Velocity = distance / time


Force = mass × acceleration