Metric System and Dimensional Analysis
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Metric System and Dimensional Analysis

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Metric System and Dimensional Analysis Metric System and Dimensional Analysis Presentation Transcript

  • Metrics and Dimensional Analysis
  • Metric System
  • Metric System
    • All units are multiples of ten
    • Consist of base unit and prefix
  • SI units
    • Internationally agreed upon units
    • All scientists use these to measure
  • Dimensional Analysis
  • Dimensional Analysis
    • Simple unit conversions; the idea of dimensional analysis
    • Convert 2 feet to inches
    • We need a conversion factor, a relationship between the units
  • Dimensional Analysis
    • These both give us a relationship between in. and ft.
    • We use D.A. to cancel units
  • Dimensional Analysis
    • The units cancel out leaving only
    • Giving us an answer of 24 in.
  • Dimensional Analysis
    • Convert 48 inches to feet.
  • Dimensional Analysis
    • Convert 5 days to hours.
  • Dimensional Analysis
    • How many seconds are there in 4 minutes?
  • Dimensional Analysis
    • Convert 27.2 cm to meters.
  • Dimensional Analysis
    • Sometimes our conversion requires more than 1 step.
    • Convert 1 Ms to hr.
  • Dimensional Analysis
    • Convert 147 cm/s to m/s
  • Dimensional Analysis
    • Convert 60 miles/hour to feet/second