Basic Units, Derived Units, and Scientific Notation (Leaving Cert Physics): Flashcards

International System of Units

Unit measuring fundamental quantity independently of others

metre (m)

kilogram (kg)

second (s)

ampere (A)

kelvin (K)

Unit formed by combining two or more basic units

newton (N)

joule (J)

watt (W)

$10^3$ or 1,000

$10^{-3}$ or 0.001

$a \times 10^n$ where $1 \leq a < 10$

No, they are not significant