5.1 Introduction, Base Units, and Prefixes

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5.1 Introduction, Base Units, and Prefixes

• Metric system base units

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5.1 Introduction, Base Units, and Prefixes
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5.1 Introduction, Base Units, and Prefixes

• Charting in the metric systemMain Rule Amount
  as a decimal then the metric abbreviation (do not
  leave a space)Examplesthree-fourths gram
  0.75gfive and a half centimeters 5.5cmtwenty
  milligrams 20mgone-half milliliter
  0.5mlNote leave a space for clarity in your
  computations

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5.2 Metric Length

• English lengths and similar metric lengths

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5.2 Metric Length

• ConversionsNote In Canada, speed is in
  kph instead of mph

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5.2 Metric Length

• Chart the following lengths
• Five-fourths of a centimeter ________
• Seven and a half millimeters ________

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5.3 Metric Volume

• Conversions

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5.3 Metric Volume

• Try these
• 3.5 liters ________ ml
• liter ________ cc

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5.4 Metric Mass

• 1 gram weight of 1 ml of water
• Basic unit 1Kg 1000 grams
• 1 liter of water weighs 1 Kg

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5.4 Metric Mass

• Applications for metric mass

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5.5 Metric Time

• Basic unit second
• Dates day month year format or year
  month day format

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5.5 Metric Time

• 24-hour clock

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5.5 Metric Time

• Examples of dates in correct chronological
  order
• Wrong April 12, 1942Correct 12 April 1942
• Wrong 11/1/07Correct 07 11 1

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5.6 Metric Temperature

• Kelvin is the basic unit, but Celsius is more
  commonly used as a base unit

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5.6 Metric Temperature

• Clinical thermometer in degrees Celsius

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5.7 Internal Metric Conversions

• Metric Conversion Chart

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5.7 Internal Metric Conversions

• Example Using the metric conversion chart,
  change 3500 liters to hl (hectoliters)
• To go from liters to hectoliters on the chart,
  move the decimal place to the left 2 places

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6.1 Conversion Methods

• Use Appendix B for converting between the
  apothecaries and metric system
• Converting units using a proportion

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6.1 Conversion Methods

• Example Change 400 m to km

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6.1 Conversion Methods

• To convert units using the factor-label
  methodNote sometimes this will require
  more than one conversion/multiplication

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6.1 Conversion Methods

• Example Convert 5 gallons to pints
• Notice how the units cancel

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6.2 Word Problems

• Example A doctor orders 5 gr. Of medication. The
  medication is available in 100 mg tablets. How
  many tablets would you give? If the medication
  came in 150 mg tablets, how many would you give?

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6.2 Word Problems

• Using a proportion

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6.2 Word Problems

• Using the factor-label method

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6.3 Temperature Conversion

• C-F Temperature Conversion
• F-C Temperature Conversion

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Supplement 3.1 Direct Variation

• Types of variation
• y varies directly as x
• y varies directly as the nth power of x

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Supplement 3.1 Direct Variation

• Solving a variation problem
• Write the variation equation.
• Substitute the initial values and solve for k.
• Rewrite the variation equation with the value of
  k from step 2.
• Solve the problem using this equation.

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Supplement 3.2 Inverse Variation

• Types of variation
• y varies inversely as x
• y varies inversely as the nth power of x

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Supplement 3.2 Inverse Variation

• Example If t varies inversely as s and t 3
  when s 5, find s when t 5
• Give the equation
• Solve for k
• Plug in k 15
• When t 5