Metric System

1
Metric System

• Objectives
• 1. give the advantages of the metric system
• 2. match the base unit to the type of measurement
• 3. list the common prefixes

2
Metric System

• ? developed by the French in the 1700's
• ? later modified to the SI (System International)
• ? most commonly used as the "kms system"
  (kilogram, meter, second)
• ? we use the United States Customary System
  (USCS)

3
Why doesnt the United States use the Metric
System?
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4
Advantages of the Metric System

• uses decimals instead of fractions
• one base unit per type of measurement
• ? uses prefixes to change units by multiples of
  10

5
Base Units
6
Common Prefixes
Prefix Symbol Multiplier
Milli m .001
Centi c .01
Deci d .1
Base Unit (grams, meters, liters)
Deka da 10
Hecto h 100
Kilo k 1000
7
Find the length in centimeters and millimeters
6.5 cm
65 mm