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METRIC EXAM!
Assignments

 • 7 BASE SI UNITS
     Spoken SI... "ess i"
  
The International System

 Test Your Metric Learning Skills
METRIC EXAM!
Assignments

 • EVERYDAY METRIC UNITS
 • PREFIXES
 • SYMBOLS
 • Base Unit - meter  (m)
                   • centimeter  (cm)
                   • millimeter  (mm)
                   • kilometer  (km)
 • Derived Unit - liter  (L)
                   • milliliter  (mL)
 • Base Unit - kilogram  (kg)
                  • gram  (g)
                  • milligram  (mg)
                  • tonne  (t)
 • Temperature
 • Evolution of Measures
 • Inch-Pound Non-System

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 • UNITED METRIC STATES

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CONVERSION Tables

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7 BASE "SI"  UNITS
The International System of Units (SI)
is the Metric Measurement Used in America
("SI" is simply spoken "ess eye")

For More of SI: Base and Derived Units visit
http://physics.nist.gov/cuu/Units.html

There are other metric information sites with all sorts of calculators and gadgets.
THIS IS JUST  A FREE, EASY TO NAVIGATE, METRIC LEARNING SITE FOR EVERYDAY PEOPLE WHO HAVE THE DESIRE TO LEARN BUT DON'T HAVE THE TIME.

The International System of Units (SI) is a modernized version of the metric system established by international agreement that provides a logical and interconnected framework for all measurements
in science, industry and commerce.
This system is built on a foundation of seven base units and
all other units are derived from them.
According to the US Department of Commerce,
National Bureau of Standards use of metric measurement was legalized in the United States in 1856 and our everyday customary
BASE UNITS of measurement are defined in terms of the meter for length and kilogram for mass.
All other units are derived from the
base unit
meter.

On That Note: Here are the 7 BASE UNITS 
for non-technical wizards.
meter • second • kilogram • Kelvin
ampere • candela • mole

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".

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).

                 COMPLETE TEMPERATURE DETAILS VISIT
 
              
http://lamar.colostate.edu/~hillger/temps.htm

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.

SO THERE YOU HAVE IT!     TECHNICAL STUFF...
BUT FOR MOST EVERYDAY EXPERIENCES
IN AMERICA and AROUND THE WORLD USE
 

Base Units "meter" and "kilogram"
and Derived Unit "liter"
CLICK ON PICTURES FOR VIDEO LEARNING!



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UNDERSTAND
EVERYDAY
RELATIONSHIP BETWEEN
Length Volume
and
Mass
in terms of meter, liter
and kilogram


CLICK ON PICTURES BELOW FOR VIDEO CLIPS

SMALLER METRIC
MEASURES

1 cm³ (1 cubic centimeter)

filled with water contains exactly
1 mL (1 milliliter)

and is the mass  of exactly
1 g (1 gram)

VIDEO CLIP

"centimeters, milliliters, milligrams"
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HIGGS Boson
In July of 2012, scientists at the world's biggest atom smasher in Switzerland claimed the discovery of a new subatomic particle.
They called it "consistent" with the long-sought Higgs boson, popularly known as the "God particle" that helps explain what gives all matter in the universe size and shape.
It also adds to the "Big Bang" theory in creation of the universe.

The Higgs boson, which until now has been a theoretical particle, is seen as the key to understanding why matter has mass, which combines with gravity to give an object weight. Very similar to the idea of gravity as Isaac Newton discovered it to be where gravity was there all the time before Newton explained it.
•
Undecided REDEFINITION of the KILOGRAM 
For more than a century the world's fundamental unit of mass has been based on a single, cylindrical piece of metal. And authorized copies of it stored in secured chambers around the world including the United States, over the years in infinitesimal ways, are shedding or accumulating atoms here and there, thus throwing off the accuracy of the objects meant to be the world standard for measurements of mass.
The 4 cm tall ingot of platinum and iridium, known as the International Prototype Kilogram, offered the world a standardized way of measuring what earlier scientists defined as 1 kilogram being the mass (weight) of 1 liter of distilled water (at sea level).
But to ensure greater accuracy there is a method of nano-measurement using "Watt Balance" housed at the U.S. National Institute for Standards and Technology (NIST) near Washington, DC, which is a bid to recast the kilogram as a mathematical equation, unerring, immutable and ultimately easy for experts to reproduce. And it is expected to yield groundbreaking calculations ahead of an international deadline to produce a new definition of the kilogram at the 2011 General Conference on Weights and Measures in Paris.
The ultimate purpose of the "Watt Balance" is to help scientists generate a reliable calculation of Planck's Constant. A universal value that quantifies the relationship between energy, light and an object's mass, which in turn will produce a new, more accurate basis for defining the kilogram worldwide.
The race to reinvent the unit of measurement before 2011 was considered important, partly because the kilogram is the only holdout in the metric system still based on a physical object rather than a formula derived from a universal constant.
The meter, once pegged to the length of a bar of platinum, was redefined in 1983 by a formula using the speed of light.