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Metric System

Metric System . The Scientific Way to Measure. Base units. Meter (m)- measure length Gram (g)- measures mass Kelvin (k)- measure heat Second (s)- measures time Mole- (mol) measures particles ex, atoms molecules Liter (L) measures volume or cm 3. Metric Prefixes.

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Metric System

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  1. Metric System The Scientific Way to Measure

  2. Base units • Meter (m)- measure length • Gram (g)- measures mass • Kelvin (k)- measure heat • Second (s)- measures time • Mole- (mol) measures particles ex, atoms molecules • Liter (L) measures volume or cm3

  3. Metric Prefixes • Micro (μ) 1/1,000,000 or 1.0 X 10-6 • Milli (m) 1/1000 or 1.0 x 10-3 • Centi (c) 1/100 or 1.0 x 10-2 • Deci (d) 1/10 or .1 • Deka (D) 10 • Hekto (H) 100 • Kilo (K) 1000 or 1.0 x 103 • Mega (M) 1,000,000 or 1.0 x 106

  4. Conversion Problem • Use conversion factors to convert from one unit to another • Are expressed as fraction, which represent absolute relationships • For example: • 1 dollar/100 pennies, 1 dollar/4 quarters, 1 dollar/ 10 dimes • 1 foot/12 inches

  5. Practice • 1.0 meters = ? Cm • 12 DL = ? mL • 155 dg = ? Kg

  6. Density • Density is equal to mass divided by volume • D = m/V • Volume= l x w x h or liters • If an object masses 114g and has the volume of 10.0 cm3 what is its density • D=

  7. Density Practice • Mass- 3.1 g, Volume 0.35 cm3 D= ? • Mass- 14 g, Density- 10.5 g/cm3 Volume= ?

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