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SI Units & Prefixes Flashcards

6 cards from real CMS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 SI Units & Prefixes flashcards as text
  1. Which SI prefix represents 10⁻⁹?

    Answer: nano

    The prefix nano represents 10⁻⁹, commonly used in nanotechnology and nanometers.

  2. The SI unit of electric current is:

    Answer: Ampere

    The ampere (A) is the SI base unit for electric current.

  3. What is the SI unit for luminous intensity?

    Answer: Candela

    The candela (cd) is the SI base unit of luminous intensity.

  4. How many base units are defined in the International System of Units (SI)?

    Answer: 7

    The SI system defines exactly 7 base units from which all other units are derived.

  5. Which prefix denotes a factor of 10¹²?

    Answer: Tera

    Tera (T) represents 10¹², as in terabytes in computer storage.

  6. The SI unit of thermodynamic temperature is:

    Answer: Kelvin

    The kelvin (K) is the SI base unit of thermodynamic temperature, starting at absolute zero.