BOARDPREP – CLASS 12
FORMULA SHEET
Physical Quantity
A measurable property expressed as:
Quantity = Numerical Value × Unit
Base Quantities & SI Units
| Quantity | Symbol | SI Unit | Unit Symbol |
|---|---|---|---|
| Length | l | metre | m |
| Mass | m | kilogram | kg |
| Time | t | second | s |
| Temperature | T | kelvin | K |
| Electric current | I | ampere | A |
| Amount of substance | n | mole | mol |
| Luminous intensity | Iv | candela | cd |
Derived Units
| Physical Quantity | Formula |
|---|---|
| Area | L² |
| Volume | L³ |
| Speed | L/T |
| Acceleration | L/T² |
| Force | M·L/T² |
| Energy | M·L²/T² |
| Pressure | M·L⁻¹/T² |
