Metric Conversions and Dimensional Analysis Notes Notes 828

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.

Prefixes Prefix Length: Abbreviation Weight: Abbreviation Volume: Abbreviation How many meters/grams/liters are in this unit? Mega- Kilo- Hecta- Deka- Base Unit Deci- Centi- Milli- Micro- Mm km hm Dm m dm cm mm Mg kg hg Dg g dg cg mg ML k. L 1, 000 1000 h. L DL L d. L c. L m. L 100 10 1 0. 01 0. 001 µm µg µL 0. 000001 Divide ÷ BIGGER SMALLER Multiply ×

6 Steps of Dimensional Analysis 1. How many feet in 4. 5 meters? What do we know? (1 foot = 0. 305 meters) 1. 2. Make your “t” chart. 2. 3. What is your cancel unit(s)? 3. 4. What is your answer unit? 5. Make each unit equal 5. 6. Do the MATH!!! 6. 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. 4. 5 meters 0. 305 meters 4. Answer units? What does our question ask for? Feet. Our answer must be in feet. 1 foot Make units equal 4. 5 meters 0. 305 meters Do math. Multiple by all numbers on top. And Divide by all numbers on the bottom. 4. 5 meters 1 foot 0. 305 meters = 14. 75 ft.