Metric system 2010 ccp

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Metric system 2010 ccp

  1. 1. Agenda Bell Work• Safety Quiz • Review for Safety Quiz• Notes: Systems of Measurement• Modern Marvels: Measurement
  2. 2. What is Missing? Brad’s shoe is 28 The caterpillar we observed was 4 long Karen ran 50 Steven’s little sister is 1 old. Allison’s plant grew 11 tall. The scientist used a piece of wire 30 long to connect the device to her equipment
  3. 3. Units of MeasurementsUnits Type of Measurement
  4. 4. Systems ofMeasurement February 5, 2013
  5. 5. Objectives1. Define a Standard of Measurement2. Name the prefixes for the SI units3. Identify units of time, mass, volume, density, temperature, and length
  6. 6. Standards of Measurement A reference point against which other things can be evaluated Handful of cheerios?
  7. 7. Standards of Measurement
  8. 8. SI Units Based on the metric Quantity Unit Symbol system Length Meter m Mass Kilogram kg Time Second s Force Newton N Energy Joule J Current Ampere A Temperature Kelvin K
  9. 9. Other Units Volume = L x W x H cm3 or mL m3 or L Density = Mass/Volume g/cm3 kg/m3
  10. 10. Prefixes Prefix Symbol Definitionkilo- k thousandhecto- h Hundreddeka- da tendeci- d tenthcenti- c hundredthmilli- m thousandth
  11. 11. Metric System MetricSystem is based on Units and prefixes Prefix + Unit = Metric Measurement Centi + Meter = Centimeter Kilo + Liter = Kiloliter
  12. 12.  So if you needed to measure length you would choose meter as your base unit  Length of a tree branch • 1.5 meters  Length of a room • 5 meters  Length of a ball of twine stretched out • 25 meters
  13. 13. Examples1 Kilogram = 1000 grams4 Kilograms = 4000 grams1 Centimeter = .001 meter100 Centimeter = 1 meter2000 milliliters = 1 liter5 liters = .005 kiloliters

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