si units of measure student handout complete

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Physical Science Handout Intro Unit: Measurement

SI Units of Measure

What is SI?International Standard of Units (SI)

SI Base UnitsBase quantity Name Abbreviation

Length meter mMass kilogram kgTime second s

Electric Current ampere ATemperature kelvin K

Volume milliliter mLVolume cubic centimeter cm3

Unit Prefixes

Prefix Abbreviation Number value

Many mega- M 1 000 000

Kids kilo- k 1000

Have hecto- h 100

Dropped deka- da 10

Over (base) 1

Dead deci- d 0.1

Converting centi- c 0.01

Metrics milli- m 0.001

Man micro- 0.000 001

Precision:The degree of detail of something that can be observed

(the weatherman that says it will be 57.6 °F at 2:37pm)

Physical Science Handout Intro Unit: Measurement

Accuracy:The degree of conformity to the standard (the “truth”)

(the weatherman that says it will be 50-55 °F tomorrow)

diagrams from: http://www.flatsurv.com/accuprec.htm

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