Physics is a natural science that deals with the study of matter, energy, and their interactions. In order to quantify and measure various physical properties, scientists have established a system of units, known as the International System of Units (SI).
The SI system includes seven base units, which are:
Length - meter (m)
Mass - kilogram (kg)
Time - second (s)
Electric current - ampere (A)
Temperature - Kelvin (K)
Amount of substance - mole (mol)
Luminous intensity - candela (cd)
These base units can be combined to form derived units, such as:
Area - square meter (m²)
Volume - cubic meter (m³)
Velocity - meters per second (m/s)
Acceleration - meters per second squared (m/s²)
Force - Newton (N)
Energy - Joule (J)
Power - Watt (W)
Pressure - Pascal (Pa)
In addition to the SI units, there are also other commonly used units in physics, such as:
Angstrom (Å) - used to measure atomic distances
Electron volt (eV) - used to measure energy at the atomic level
