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INSTANT METRIC
eBook
PAGE 2
TABLE of CONTENTS
PAGE 3
Evolution of
Archaic Measurement
PAGE 4 - Inch-Pound
PAGE 6 - "SI" Relates
PAGE 8
The Metric System
PAGE 10 - Prefixes
PAGE 11 - Symbols
PAGE 12
Everyday Base Units
PAGE 13 - meter
PAGE 15 - centimeter
PAGE 17 - millimeter 
PAGE 19 - kilometer
PAGE 21 - liter
PAGE 22 - milliliter
PAGE 24 - kilogram
PAGE 26 - gram
PAGE 28 - milligram
PAGE 29 - tonne
PAGE 31 
Temperature 
PAGE 32
7 Base Units
PAGE 34
HOW THE METRIC SYSTEM WORKS
PAGE 35 - Summary
OTHER USEFUL LINKS
FREE METRIC POSTERS
METRIC EXAMS!
INSTANT METRIC CONVERSION TABLES
United Metric States
 
 

PAGE 33 CONTINUED from Page 32

BASE UNIT - meter (m) - LENGTH.
   Up until 1983 the meter was defined as 1,650,763.73 wavelengths in a vacuum of the orange-red line of the spectrum of krypton-86. And since then it is determined to be the distance traveled by light in a vacuum in 1/299,792,45 of a second.

BASE UNIT - second (s) - TIME
   The second is defined as the duration of 9,192,631,770 cycles of the radiation associated with a specified transition of the cesium-133 atom.

BASE UNIT - kilogram (kg) - MASS
   The standard for the kilogram is a cylinder of platinum-iridium alloy kept by the International Bureau of Weights and Measures in Paris. 
A duplicate at the National Bureau of Standards serves as the mass standard for the United States. The kilogram is the only base unit defined by a physical object.

BASE UNIT - Kelvin (K) and Celsius (C)  - TEMPERATURE
   The Kelvin is defined as the fraction 1/273.16 of the thermodynamic temperature of the triple point of water; that is, the point at which water forms an interface of solid, liquid and vapor. This is defined as 0.01 C on the Celsius scale and 32.02 F on the Fahrenheit scale. The temperature zero K (Kelvin) is called "absolute zero". Basically, thats where water freezes. (at sea level)

 

BASE UNIT - ampere (A) - ELECTRIC CURRENT
   The ampere is defined as that current that, if maintained in each of two long parallel wires separated by one meter in free space, would produce a force between the two wires (due to their magnetic fields) of 2 x 10-7 N (Newton) for each meter of length. (a Newton is the unit of force that when applied to one kilogram mass would experience an acceleration of one meter per second, per second).

BASE UNIT - candela (cd) - LUMINOUS INTENSITY
   The candela is defined as the luminous intensity of 1/600,000
of a square meter of a cavity at the temperature of freezing
platinum (2,042 K).
             

BASE UNIT - mole - (mol) AMOUNT OF SUBSTANCE
   The mole is the amount of substance of a system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon-12.

BUT FOR MOST EVERYDAY PURPOSES USE
BASE UNIT meter length
Derived UNIT
liter volume
BASE UNIT
kilogram mass

 ...to PAGE 34 

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