In the international system of units, the unit of mass is:
Correct answer: B. Kilogram
- A. Gram
- B. Kilogram
- C. Milligram
- D. Pound
Explanation
The kilogram is the fundamental unit of mass in the SI system. It is defined as the mass of the international prototype of the kilogram, a platinum-iridium alloy cylinder kept at the International Bureau of Weights and Measures (BIPM) in France. The kilogram is used as the base unit for mass in the SI system, and all other units of mass are derived from it.
Last updated
About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
Practise Measurements
262 free Measurements MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 9 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.