Friday, 16 September 2011

Measurements


Quantities and Measurements
  • measurements are a multiple of some basic unit
  • All measurements in Science come in 2 parts! It must have the number and the unit
  • Both the number and the unit create a combination called a quantity
  • SI(Système international d'unités) — the International System of Units — a french system using powers of 10
BASIC UNITS
Measurement             Unit              Abbreviation
length                        metre              m
time                          second             s
mass                         kilogram          kg
amount of subst.*      mole*             mol
luminous intensity       candela           cd
temperature               kelvin              K
eletric current             Ampere          A

SI PREFIXES



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