NOTA

Physical Quantities

• A physical quantity is a quantity that can be measured. 
• Examples : time, temperature, weight, volume, speed, force and pressure.
• Measured in units based on SI units ( metric system ).
• Physical quantities can be categorized into base quantities & derived quantities.

Base Quantities
A base quantity is a physical quantity that cannot be derived from other physical quantities. Example: length, mass, time.

Derived Quantities
A derived quantity is a Physics quantity that is not a base quantity. It is the quantities which derived from the base quantities through multiplying and/or dividing them.      Example speed, volume and density.