Metric Conversions and Dimensional Analysis Notes

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Presentation transcript:

Metric Conversions and Dimensional Analysis Notes

Notes 8/28 In your Essential Facts Binder look at note page titled, “Metrics” with a box that reads “1.2” in the top right corner. The following slides will offer the notes that you will need to fill our your notes page. If you have any questions please don’t hesitate to ask Mrs. Spencer or a classmate when you return to class.

How many meters/grams/liters are in this unit? Prefixes Prefix Mega- Kilo- Hecta- Deka- Base Unit Deci- Centi- Milli- Micro- Length: Abbreviation Mm km hm Dm m dm cm mm µm Weight: Abbreviation Mg kg hg Dg g dg cg mg µg Volume: Abbreviation ML kL hL DL L dL cL mL µL How many meters/grams/liters are in this unit? 1,000,000 1000 100 10 1 0.1 0.01 0.001 0.000001 BIGGER SMALLER Divide ÷ Multiply ×

6 Steps of Dimensional Analysis What do we know? Make your “t” chart. What is your cancel unit(s)? What is your answer unit? Make each unit equal Do the MATH!!! How many feet in 4.5 meters? (1 foot = 0.305 meters) We have 4.5 meters and that 1 foot is equal to 0.305 meters. T-chart: Cancel units? In # 1 is there a unit that is mentioned twice? Yes meters. Just like fractions units can cross cancel. Answer units? What does our question ask for? Feet. Our answer must be in feet. Make units equal Do math. Multiple by all numbers on top. And Divide by all numbers on the bottom. 4.5 meters 0.305 meters 4.5 meters 0.305 meters 1 foot 4.5 meters 0.305 meters 1 foot = 14.75 ft.