Learning Goals 9/13/10

1
Learning Goals 9/13/10

1. Name the 3 common measurement systems used in the
   US
2. List at least 3 reasons to learn about
   measurement systems
3. Explain how the English system is different from
   metric or SI (related to the relationships
   between units of measure)
4. Identify the seven SI base units
5. Identify the facts (Metric No. Line metric
   prefixes and their meaning) necessary to master
   the use of the metric system
6. Convert between metric or SI units

2
A few good reasons to know about measurement
systems

• In the US, we use several different systems for
  measurement depending upon its purpose
• _____________ within a culture related to goods,
  services, and needs for people
• Allows for Protection of the ____________
• Allows for Protection of Public __________
  __________

3
3 Measurement Systems

• 3 systems in use throughout the United States
• ____________- the traditional system used
  throughout the United States
• ____________- a system that bases each
  measurement unit as some factor of 10 using base
  units with prefixes
• ______________- a series of measurement units
  that have been adopted ______________ so that all
  nations have standardized units for comparison

4
English System

• The traditional system used in the U.S.
• Pro
• - most US citizens are more familiar with this
  system for measurement
• Con
• - unit relationships are not highly ____________
  as in metric system
• -very few __________ use this system for
  measurement

pounds
ounces
TONS
miles
feet
inches
gallon
quart
Pint
5
Metric System
milliliter

• Uses base units and prefixes
• 3 common metric base units
• Mass- gram (g)
• Volume Liter (L)
• Length meter (m)
• A ___________ in front of any _________ unit
  changes the meaning of the unit to make it
  __________ or _________

megabyte
centimeter
kilogram
nanosecond
6
SI System

• A series of internationally adopted measurement
  units
• The standard units fir comparison that have been
  adopted by this system are usually called SI
  __________ units
• There are ___common ones adopted internationally

7
Common Metric Facts The Metric Prefix No. Line
Base unit
Kilo-
Mega-
Tera-
Giga-
nano-
micro-
pico-
milli-
centi-
deci-
0
-1
-2
-3
-6
-9
-12
3
6
9
12
3,250 mg ____ kg
0.075 cm _____nm
475 µL ____L
0.64 pg ____mg