Define SI units, its advantages & disadvantages

SI Units (International System of Units):

The International System of Units, also known as SI units, is a system of units used for physical measurements and calculations.
SI units are based on seven base units for physical quantities such as length, mass, time, electric current, temperature, amount of substance, and luminous intensity.
SI units are used internationally and are widely recognized and adopted by scientists, engineers, and researchers.

Consistency: SI units are standardized and agreed upon internationally, providing consistency in measurements and calculations across different systems.
Simplicity: The use of SI units simplifies measurements and calculations, making it easier to compare results and collaborate with others.
Clarity: SI units are clear and easily understandable, making it easier to communicate physical quantities and measurements to others.
Accuracy: The use of SI units helps to ensure accuracy and consistency in measurements and calculations, reducing the likelihood of errors and misinterpretations.

Complexity: Some physical quantities and measurements may be more complex to express in terms of SI units, especially for non-standard or specialized applications.
Conversion: Converting between different units can be time-consuming and error-prone, especially for those not familiar with SI units or conversions.
Familiarity: Some people may be more familiar with non-SI units and may find it difficult to transition to using SI units.
Acceptance: Not all countries and communities have fully adopted SI units, making it difficult to compare measurements and results across different systems.