SI unit definition is a unit of measurement that is a universally accepted system used for scientific and technical work all over the world.
The kilogram is the SI base unit of mass and is equal to the mass of the international prototype of the kilogram, a platinum-iridium standard that is kept at the International Bureau of Weights and Measures (BIPM).
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Q1
What is the SI unit of mass?
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Q2
What is the SI unit of mass? How is it defined?
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Q3
In the SI system, standard units for length, mass, time and temperature are fixed. What are these units?
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Q4
(a) Define mass of a body. What is the SI unit of mass ? (b) Define weight of a body. What is the SI unit of weight ? (c) What is the relation between mass and weight of a body ?