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Which of the following is the basic unit of mass in the SI system?
A
pound
B
kilogram
C
gram
D
milligram
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1
Understand that the SI (International System of Units) is the modern form of the metric system and is the standard system used worldwide for scientific measurements.
Recall that the SI system defines base units for different physical quantities, such as length, time, and mass.
Identify that the base unit of mass in the SI system is the kilogram, which is symbolized as kg.
Note that other units like gram and milligram are derived units based on the kilogram (1 kilogram = 1000 grams, 1 gram = 1000 milligrams).
Recognize that the pound is a unit of mass used primarily in the imperial system, not the SI system.