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Measurement Systems

Measurement Systems. EARLY SYSTEMS. Measurements are relative. Foot = human foot Inch = 3 barley corns Yard = nose to outstretched fingertip Mile = 1,000 paces Gallon = simply the name for a pail. Even God needs measuerments. Genesis 7 Cubit = elbow to tip of mid finger.

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Measurement Systems

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  1. Measurement Systems

  2. EARLY SYSTEMS

  3. Measurements are relative • Foot = human foot • Inch = 3 barley corns • Yard = nose to outstretched fingertip • Mile = 1,000 paces • Gallon = simply the name for a pail

  4. Even God needs measuerments • Genesis 7 • Cubit = elbow to tip of mid finger

  5. Need for Consistency

  6. The English System

  7. Do you know our current system? • How many inches in a foot? • How many feet in a yard? • How many feet in a mile? • How many ounces in a cup? • How many cups in pint? • How many pints in a quart?

  8. The English System cont. • How many quarts in a gallon? • How many cups in a gallon? • How many ounces in a pound? • How many pounds in a ton? • How many mass ounces in a ton? • Are fluid ounces and weight ounces the same? • What is the abbreviation for a pound?

  9. CONFUSED????

  10. Need for simplicity Metric system “BORN” August 1, 1793 in France

  11. THE METRIC SYSTEM • First legal to use in the USA in 1866 • International acceptance by 1875 • Britain mandates use in 1965 • Canada in 1970 • Today only major country in the world that does not legally require its use is ……..

  12. THE U.S.A.

  13. ONLY 3 BASIC UNITS: • MASS (WEIGHT) = GRAM • VOLUME = LITER • DISTANCE = METER

  14. KILO = 1,000 HECTO = 100 DECA = 10 MEGA = MILLION DECI = .1 (1/10) CENTI = .01 (1/100) MILLI = .001 (1/1000) MICRO = one millionth NANO = one billionth PREFIXES

  15. English to Metric conversions • 1 gallon = 3.78 liters • 1 pound = 453 grams • 1 inch = 2.54 centimeters • 1 foot = .3048 meters • 1 yard = .91 meters • 1 mile = 1, 609 meters

  16. Only need to know APPROXIMATES

  17. Visualize: • 1 gram = weight of a small paperclip • 5 gram = weight of a nickel • 1 kg = 2.2 lbs = approx. weight of textbook • 1 mg = weight of a piece of dust

  18. Visualize: • 1 m = length of a baseball bat, golf club, etc… • 1 mm = thickness of an ID card • 1 cm = width of little finger / pencil • 1 km = 5 city blocks (8 blocks = 1 mile) • 1 ml = single drop of liquid / teardrop

  19. Metric to metric CONVERSIONS State the relationship and then determine direction to move decimal point Exp kg to g would be 1000 to 1 move to the right THUS: 12kg equals 12000 grams and 12000g equals 12kg

  20. DIRECTION • If larger to smaller unit move decimal to right • If smaller unit to larger unit move to left

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