1 / 9

Dimensional Analysis & Scientific Notation

Dimensional Analysis & Scientific Notation . Dimensional Analysis. Conversion factors - ratios of equivalent values. 1 gram = 1000 milligrams. 1 g or 1000 mg 1000 mg 1 g. 60 sec = 1 min. 60 sec or 1 min. 1 min. 60 sec.

eloise
Download Presentation

Dimensional Analysis & Scientific Notation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dimensional Analysis & Scientific Notation

  2. Dimensional Analysis Conversion factors - ratios of equivalent values 1 gram = 1000 milligrams 1 g or 1000 mg 1000 mg 1 g

  3. 60 sec = 1 min. 60 sec or 1 min. 1 min. 60 sec What would the conversion factors be for years and days? 365 days or 1 year 1 year 365 days

  4. Dimensional Analysis 1.) Write down given number and unit 2.) Write down “x” and a line 3.) Put given unit on side of line so it will cancel and the desired unit on the other side (may take more than 1 step) 4.) Fill in appropriate numerical relationship 5.) Multiply the top and divide by the bottom

  5. Example #1 • How many seconds are there in 1 year? 365 days x ____ 24 hr 60 min. x _____ x _____ 1 year day 1 hr 1 1 year 60 sec. x _____ 1 min = 31536000 sec.

  6. Example #2 - How many inches are there in 85.6 cm? (1in = 25.4mm) 10 mm 1 in 85.6cm x _____ x _____ cm mm 1 25.4 = 33.7 in.

  7. Example #3 - How many fluid ounces are there in 2.0 gallons? (1gall = 4 qts, 1 qt = 2 pints, 1 pint = 2 cups, 1 cup = 8 fl. oz.) 4 qts 2 pt 2.0 gall x _____ x _____ gal qt. 1 1 2 cup x _____ 8 fl. oz. x _____ pt. cup 1 1 = 256 fl. oz.

  8. Scientific Notation 1.) 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.

  9. 1.392x106 2.8x10-8

More Related