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Published byShawn Bruce Modified over 6 years ago

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Please take out: A notebook and writing utensil Your blue formula sheet A calculator Convert 57cm 2 to m 2 Convert 1.65km 3 to m 3 Kickoff:

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Metric Conversions & Dimensional Analysis

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Brainstorm 3 advantages of the metric system. Based on units of 10 Easy to convert No fractions Prefixes allow you to express any size measurement Standards are well defined International

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Any disadvantages of the metric system? American’s aren’t used to it – its not part of their daily life. NOTE: The official international system is called the “SI” or “System International”

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A few official SI units Meters – length Kilograms – mass Liters -- Volume Seconds – time Moles – amount of substance Ampere – electric current

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Metric prefixes Giga – 10 9 Mega – 10 6 Kilo – 10 3 Hecto – 10 2 Deka - 10 1 Deci – 10 -1 Centi – 10 -2 Milli – 10 -3 Micro – 10 -6 Nano – 10 -9 There are others….

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Kilo Hecto Deka meter, gram, Liter Deci Centi Milli Decimal Decimal moves Left moves Right

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One more.. Convert 252cm 3 to L.

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Converting units Dimensional Analysis… Set up the problem. Find the correct conversion factor. Create a fraction that cancels the given unit and brings you closer to the new unit.

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Converting complex units Easiest to use dimensional analysis – cancel one part at a time until you have converted all parts.

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Practice Convert 5km to miles 125lbs to kg

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Practice Convert 72 mi/hr to m/s. Convert 275,000sec to days.

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