Multiple choice general knowledge

What is the unit for MASS?

  1. Ampere (A)

  2. Kilogram (kg)

  3. CANDELA (cd)

  4. Joule
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The kilogram (kg) is the SI base unit for mass. It is defined by taking the Planck constant h as exactly 6.62607015 × 10^-34 joule-seconds. Previously, it was defined as the mass of a platinum-iridium cylinder kept in France.

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