Final answer:
The incorrect abbreviation of the SI base unit is 'kelvin: k'. The correct abbreviation for kelvin should be 'K' (uppercase), not 'k' (lowercase). All other options provided are correct abbreviations for their respective SI base units.
Step-by-step explanation:
The student is tasked with identifying which abbreviation of the given SI base unit is incorrect. Let's review the options provided:
- A) second: s
- B) kilogram: kg
- C) meter: m
- D) mole: mol
- E) kelvin: k
All abbreviations are correct except for E) kelvin, which should be abbreviated as 'K' (uppercase) instead of 'k' (lowercase). The SI unit for time is the second, abbreviated as 's'. SI units include other units like meters, liters, and grams, designed for universal scientific use.
Furthermore, examples of SI unit abbreviations provided are:
- a. kilometer (km)
- b. milligram (mg)
- c. nanosecond (ns)
- d. centiliter (cl)
Each of these is defined in terms of a base unit, such as meters for length, grams for mass, and seconds for time, with prefixes indicating multiples or fractions of these base units.