Post on 22-Jan-2016
description
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Scientific Notation and Metric Conversions
Chapter 2
Section 2
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Scientific Notation1.) Move decimal after first whole number while counting the number of places you moved.2.) Rewrite number with x 10 following it.3.) Add exponent to 10 based on number of places you moved decimal - exponent is (-) if you moved right and (+) if you moved left.
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2.8x10-8 1.392000x106
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SI Conversions
• Use the prefix line of King Henry died by drinking chocolate milk!
–K h da b d c m
–This gives you the number of places and direction to move the decimal when doing a SI conversion
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• Example #1–How many kilograms are there in 45,
456 mg
K h d b d c m
So…move the decimal 6 places to the left
45,456 mg = 0.045456 kg
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Doing conversions using the “other” prefixes
• Mega – khdbdcm – micro – nano – pico• x3 x3 x3 x3
Example #2 - How many meters are there in 6500 nanometers?
K h d b d c m μ n
= 6.5 x 10-6 m
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Example #4
How many m3 is 650 cm3?
K h d b d c m
So…move the decimal 6 places to the left
650 cm3 = 6.5x10-4 m3 = 0.00065 m3
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