3.2 International System of Units (SI)

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Presentation transcript:

3.2 International System of Units (SI) Units unite!

SI Base Units Length = Meter (m) Mass = Kilogram (kg) Temperature = Kelvin (K) Time = Second (s) Amount = Mole (mol) Volume = Liter (L)

Volume Measured using graduated cylinders, pipets, burets, volumetric flasks, and syringes BASE = LITERS (L)

Temperature Travels from hot to cold K = ˚C+273 ˚C = K-273 Absolute Zero

Energy Units - Joule (J), calorie (cal) “calorie” is the quantity of heat that raises the temperature of 1 g of pure water by 1˚C. 1 J = 0.2390 cal 1 cal = 4.184 J

Acronym! King (kilo-) Henry (hecto-) Does (deka-) Usually (UNIT) Drink (deci-) Chocolate (centi-) Milk (milli-)

Convert Using Prefixes PREFIX SYMBOL Kilo- k Hecto- h Deka- da BASE (meter, liter, gram, etc.) m, L, g Deci- d Centi- c Milli- m

Story and Practice…