Answer: the kilogram.
- A the kilogram
- B the gram
- C the newton
- D the pound
Correct answer: A. the kilogram
Explanation: The kilogram (kg) is the SI base unit of mass.
The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.
Concept context
SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.