How many base units are there in the SI system?

The International System of Units (SI) is founded on a set of base units that serve as the foundation for measurement in science and engineering. There are seven base units in the SI system, each defined for a specific physical quantity. These base units are:

1. Meter (m) for length

2. Kilogram (kg) for mass

3. Second (s) for time

4. Ampere (A) for electric current

5. Kelvin (K) for temperature

6. Mole (mol) for the amount of substance

7. Candela (cd) for luminous intensity

These units provide a standardized framework for scientific communication and experimentation across various disciplines. By utilizing these seven base units, scientists and researchers can derive other units for different measurements, ensuring clarity and consistency in scientific work. This structured approach makes it easier to convert between units and understand the relationships among different physical quantities.