Forging new generations of engineers SI Metric System
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Forging new generations of engineers
SI Metric System How is it different from the English System?
History of the SI Metric System • 1670 Gobriel Mounton, receives credit for originating the metric system • 1792 Worlds first decimal currency (U. S. dollar consisting of 100 cents) • 1996 All surface temperature observations in National Weather Service are now transmitted in degrees Celsius • Project (2000) Stock Exchanges change to decimal
Metric to English Conversions • METRIC – – – 1 Meter 1 Centimeter 1 Millimeter 1 Decimeter 1 Kilometer 1. 609 km • ENGLISH = = = • • • 3. 28 feet. 393 inch. 0393 inch 3. 937 inch 3280. 83 feet 1 Mile
More English to Metric Conversions
Prefixes
The Metric System m mm cm km g mg kg – meter – millimeter – centimeter – kilometer - gram – milligram – kilogram l ml m 2 m 3 km 2 t ha - liter millimeter square meter cubic meter square kilometer metric ton hectare
Metric System - Length
Metric System - Mass
Metric System - Area
Metric System - Volume
Special Relationships
Conversion Table
Visual Comparisons
SI Symbols Review • • m=? mm = ? cm = ? km = ?
SI Review • • What Does SI stand for ? Is this system fraction or decimal based ? Who is Gabriel Mouton ? How many cm in 1 inch ? How many mm = 1 cm ? How many cm = 1 m ? How many meters = 1 km ?