The Metric System

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The Metric System

• The Meter Is Born
• 3 Major Systems of Units
• Derived Quantities

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The Meter Is Born

• Meter 1/10,000,000 the distance from the North
  Pole to the Equator.
• Based on the longitudinal meridian including
  Dunkirk and Barcelona.
• Standard measurement of LENGTH.
• Serves as the basis for the standard unit for
  VOLUME and MASS.
• One cubic decimeter ONE LITER (VOLUME)
• One cubic centimeter of water ONE GRAM (MASS)

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The Liter is Derived from a 1/10 of a Meter.
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The Liter is Derived from a 1/10 of a Meter.
One Cubic Decimeter One Cubic Centimeter
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The Liter is Derived from a 1/10 of a Meter.
One Cubic Decimeter IS a LITER. And, is 1000
Cubic Centimeters
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The Gram is Derived from 1/1000 of a Cubic
Decimeter of Water
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The Gram is Derived from 1/1000 of a Cubic
Decimeter of Water

• One cubic centimeter filled with water has the
  mass of one GRAM.

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3 Major System of Units with 7 Basic Quantities
SI (System International) MKS (meter, kilogram, second) Time sec Mass kilogram Length meter Temp. Kelvin Current ampere Amount of Substance mole Luminous Intensity - candella CGS (centimeter, gram, sec.) 1. Time sec 2. Mass gram 3. Length centimeter 4. Temperature Kelvin 5. Current - ampere 6. Amount of Substance mole 7. Luminous Intensity candella Imperial or British Time sec Mass slug Length - foot Temp. Fahrenheit Current ampere Amount of Substance mole Luminous Intensity candella
The __pound___ is Exactly 453.59237 grams by
definition. The ___foot___ is Defined as exactly
0.3048 meters since 1959
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Derived Quantities

• Any quantity that is made from a combination of
  the basic quantities
• Example Velocity length (distance) traveled /
  change in time
• Units
• MKS m/s
• CGS cm/s
• Imperial ft/s
• Others Velocity units _______, ________, ________

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