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The Metric System

Explore the Metric System, a globally adopted measurement framework established in 1797. This guide delves into the significance of switching to SI units, including key conversions like pounds to ounces, yards to miles, and kilometers to meters. Understand base and derived units of measure, such as mass (kilograms), time (seconds), and length (meters). Additionally, learn about scientific notation and practice converting between both SI units and scientific notation through guided exercises. Master the SI Unit Conversion Chart for future use!

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The Metric System

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  1. The Metric System SI Units

  2. Metric System Est. 1797

  3. World-Wide Adoption - =

  4. Why switch? 1 pound = 16 ounces

  5. Why switch? 1760 yards = 1 mile 12 inches = 1 foot 3 ft = 1 yard

  6. Why switch? 1 kilometer = 1000 meters 1 meter = 1000 millimeters 1 kilogram = 1000 grams 1 gram = 1000 milligrams 1 kilosecond = 1000 seconds 1 second = 1000 milliseconds

  7. Base units mass (kilograms) time (seconds) length (meters) electric current (amperes) temperature (Kelvins)

  8. Derived units x = x x = = x x

  9. SI Unit Names How much What it measures [prefix] [base] 1/100 centi- gram mass 1/1000 milli- second time 1000 kilo- meter length

  10. SI Units & Scientific Notation 3,140,000,000,000 meters 3.14 × 1012 meters 3.14 Tm

  11. SI Units & Scientific Notation 0.00000000812 seconds 8.12 × 10-9 seconds 8.12 ns

  12. Si units & Scientific notation

  13. Converting from SI to SN Convert 20 mm to m: • = 20 x 10-3m Convert 400s to ns: • = 400 x 109ns

  14. Guided Practice • Convert the following: • 33 km to m • 42.5 Dg to g • 38,000,000,000 s to Gs • 9.8 x 103mm to m • 303.9 cK to K

  15. Quiz Tomorrow • Be able to write the entire SI Unit Conversion Chart from memory (available on Moodle) • Be able to convert to and from Base SI Units • Be able to convert from Scientific Notation to SI Units • Be able to add, subtract, multiply, and divide in Scientific Notation • (Get with a partner and start studying the SI Unit Conversion Chart)

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