Physical Quantity

1. What is Physical Quantity?

Physical Quantity is Something that is measurable, generally has its own unit, and its stated in numbers or value

Example :
Ms.Korry Height is 180 cm

• Height : Physical Quantity
• 180 : Value
• cm : Units

 2. Basic Quantity and Derived Quantity

Basic Quantity is the Quantity whose unit has been previously determined and it is not derived from other Quantity.  Look At The Table Below!





Derived Quantity is the Quantity whose unit is derived from basic quantity. Derived Quantity is very much, for the Example Area (m²) derived from Length, Speed Or Velocity (m/s) derived from Length and Time, Density (kg/m³) derived from Mass and Length, and many more.

3. SI Units Based on Decimal System

1.000.000.000.000 watt! How Many Zeros are There in that value? in Physical we called that only 1 Tera-watt the terms called "SI" SI unit are Based on Decimal System which uses multiples of 10. Look At The Table Below!