# Base Quantities

## 1.2.1 Base Quantities

### Physical Quantity

1. A physical quantity is a quantity that can be measured.
2. A physical quantity can be divided into base quantity and derived quantity.

### Base Quantities

1. Base quantities are the quantities that cannot be defined in term of other physical quantity.
2. The base quantities and its units are as in the table below:
TIPS: In SPM, you MUST remember all 5 base quantities and its SI unit.