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Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
Units of measurement
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Units of measurement

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  • 1. Chapter 1 Measurements Units of Measurement
  • 2. Measurement
    • You are making a measurement when you
    • Check you weight
    • Read your watch
    • Take your temperature
    • Weigh a cantaloupe
    • What kinds of measurements did you make today?
  • 3. Standards of Measurement
    • When we measure, we use a measuring tool to compare some dimension of an object to a standard.
  • 4. Some Tools for Measurement
  • 5. Learning Check
    • From the previous slide, state the tool (s) you would use to measure
    • A . temperature ____________________
    • B . volume ____________________
    • ____________________
    • C. time ____________________
    • D. weight ____________________
  • 6. Solution
    • From the previous slide, state the tool (s) you would use to measure
    • A . temperature thermometer
    • B. volume measuring cup, graduated cylinder
    • C. time watch
    • D . weight scale
  • 7. Measurement in Chemistry
    • In chemistry we
    • do experiments
    • measure quantities
    • use numbers to report measurements
  • 8. Learning Check
    • What are some U.S. units that are used to measure each of the following?
    • A. length
    • B. volume
    • C. weight
    • D. temperature
  • 9. Solution
    • Some possible answers are
    • A. length inch, foot, yard, mile
    • B. volume cup, teaspoon, gallon, pint, quart
    • C. weight ounce, pound (lb), ton
    • D. temperature  F
  • 10. Metric System (SI)
    • Is a decimal system based on 10
    • Used in most of the world
    • Used by scientists and hospitals
  • 11. Units in the Metric System
    • length meter m
    • volume liter L
    • mass gram g
    • temperature Celsius °C
  • 12. Stating a Measurement
    • In every measurement there is a
    • Number
    • followed by a
    • Unit from measuring device
  • 13. Learning Check
    • What is the unit of measurement in each of the following examples?
    • A. The patient’s temperature is 102°F.
    • B. The sack holds 5 lbs of potatoes.
    • C. It is 8 miles from your house to school.
    • D. The bottle holds 2 L of orange soda.
  • 14. Solution
    • A . °F (degrees Fahrenheit)
    • B. lbs (pounds)
    • C. miles
    • D. L (liters)
  • 15. Learning Check
    • Identify the measurement in metric units.
    • A. John’s height is
    • 1) 1.5 yards 2) 6 feet 3) 2 meters
    • B. The volume of saline in the IV bottle is
    • 1) 1 liters 2) 1 quart 3) 2 pints
    • C. The mass of a lemon is
    • 1) 12 ounces 2) 145 grams 3) 0.6 pounds
  • 16. Solution
    • A. John’s height is
    • 3) 2 meters
    • B. The volume of saline in the IV bottle is
    • 1) 1 liter
    • C. The mass of a lemon is
    • 2) 145 grams

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