II.2 SI UNITS 3. IMPORTANT EQUIVALENCES 1 mL = 1 cm 3 1 m 3 = 10 3 L 1 t = 10 3 kg
II.2 SI UNITS Example: Re-write the expression “6 kilograms” using PREFIX and UNIT SYMBOLS an EXPONENTIAL EQUIVALENT The prefix symbol for kilo is ___ and the unit symbol for grams is ___ 6 kilograms = The exponential equivalent to kilo is ____ 6 kilograms =
II.3 METRIC CONVERSIONS Metric conversions involve using unit conversions between prefix symbols and exponential equivalents. Example: Write a conversion statement between cm and m. ‘c’ stands for _____ then
II.3 METRIC CONVERSIONS Example: How many milligrams are in 5 kg? Unknown amount = Initial amount = Conversion factors = Solution:
II.3 METRIC CONVERSIONS Diagram (p. 20) – how prefix symbols relate to a central base unit: Example 1: Express 7µm in Megametres. m Mmkmdmcmmmμmμm
II.3 METRIC CONVERSIONS Example 2: (p.21 #16e) If 1 dL = 10 -1 L and 1 kL = 10 3 L, how many decilitres in 0.5kL?
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