Length
* Standard Unit: Meter (m)
* Measurement Tools:
* Rulers: Used for measuring short distances.
* Measuring tapes: Used for measuring longer distances.
* Vernier calipers: Measure lengths with high precision, typically used in engineering and manufacturing.
* Micrometers: Measure even smaller distances with extreme accuracy.
* Laser rangefinders: Used for long distances, often in surveying and construction.
Mass
* Standard Unit: Kilogram (kg)
* Measurement Tools:
* Balances: Used to determine the mass of an object by comparing it to a known standard mass.
* Scales: Measure the force of gravity on an object, which is proportional to its mass.
* Analytical balances: Used for high-precision mass measurements in scientific research.
Time
* Standard Unit: Second (s)
* Measurement Tools:
* Clocks and watches: Measure time in seconds, minutes, hours, etc.
* Stopwatches: Measure short intervals of time accurately.
* Atomic clocks: The most accurate timekeepers, used for scientific and technological purposes.
Important Note: While these are the fundamental quantities, derived quantities like volume, density, speed, etc., are built upon them. They are calculated using combinations of length, mass, and time.
