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

Which unit is NOT an SI base unit?
Answer: Newton
The newton is a derived unit (kg·m/s²), not a base unit; it is derived from three SI base units.
What is the SI prefix for 10⁻¹²?
Answer: Pico
Pico (p) represents 10⁻¹², used in units like picofarads in electronics.
The joule (J) is the SI unit of energy, equivalent to:
Answer: kg·m²/s²
One joule equals one kilogram times meters squared per second squared (kg·m²/s²).
Which prefix represents 10¹⁵?
Answer: Peta
Peta (P) represents 10¹⁵, as in petabytes of data storage.
The SI unit for plane angle is:
Answer: Radian
The radian (rad) is the SI derived unit for plane angle, defined as the angle subtended by an arc equal in length to the radius.
What does the SI prefix 'deca-' mean?
Answer: 10
Deca- (da) means 10, so one decameter equals 10 meters.