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Metric System

Metric System . International System of Units (SI). Basic Metric Units. Length. Meter (m) Gram (g) Liter (l) Celsius ( °C) or Kelvin (K) Second (s). Mass. Volume. Temperature. Time. Derived Units.

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Metric System

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  1. Metric System International System of Units (SI)

  2. Basic Metric Units Length • Meter (m) • Gram (g) • Liter (l) • Celsius (°C) or Kelvin (K) • Second (s) Mass Volume Temperature Time

  3. Derived Units • Area – amount of surface included within a set of boundaries; expressed in square units of length, e.g., m2 • Volume – amount of space occupied by an object, e.g., m3 for solids or mL or L for liquids • Density – amount of matter that occupies a given space; mass/volume, e.g., g/mL

  4. Basic units: m, l, g ManyMmega1 000 000(106) Kidskkilo1000(103) Havehhecto100(102) Droppedda/dkdeka10(101) Over--- Basic Unit (ONES)---1 (100) Deadddeci.1(10-1) Convertingccenti.01(10-2) Metricsmmilli.001(10-3) ----- m micro .000001 (10-6) ----- n nano .000000001 (10-9) ----- A Angstrom .0000000001 (10-10)

  5. Bigger to smaller - Move decimal right Smaller to bigger - Move decimal left 3 3 3 100 (m, l, g) Basic Unit M k h da d c m μ n Many kids have dropped over dead converting metrics 4.22 422. cm = m 6523. m m = 0.006523 m 69630 ml 69.63 l = 13 dal = 130,000 ml 0.00923 kg 230 mg = 0.230 g 9.23 g =

  6. Celsius The Metric Temperature Scale • Definitions • 0°Celsius(C) = 32°Fahrenheit(F) = water freezes • 100°Celsius = 212°Fahrenheit = water boils • Also called the centigrade scale. • Conversions • °Celsius = 5/9 X (°Fahrenheit - 32°) • °Fahrenheit = (9/5 X °Celsius) + 32° 30 is hot, 20 is nice, 10 is chilly, 0 is ice.

  7. REVIEW “QUIZ” 1) 345 cm = km 0.00345 2) 22ºC = 71.6 ºF 3) k h da (m,l,g) d c m kilo- hecto- deka- deci- centi- milli- Fill in the missing prefixes.

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