Equations Scientific Notation: Working with orders of magnitude by Janet Shiver, Ph.D., Teri Willard, Ed.D. Reading Quiz Teach with this 1. Order of magnitude is a method for describing the size of measures in terms of powers of _____. 1 5 10 100 2. Which of the following equations is written in the form of scientific notation? (5 x 1000) + (3 x 100) + (1 x 10) + (7 x 1) (5 x 103) + (3 x 102) + (1 x 101) + (7 x 100) (5 x 612) + (3 x 111) + (1 x 14) + (7 x 9) (5 x 612) + (3 x 111) + (1 x 14) + (7 x 91) 3. Researchers use scientific notation to write very large and very small numbers. true false 4. If you were to convert the number 52,468 to scientific notation, you would write it in this manner: (5 x 10000) + (2 x 1000) + (4 x 100) + (6 x 10) + (8 x 1) (50 x 1000) + (20 x 100) + (40 x 10) + (60 x 1) + 8 5.2468 x 104 5.2468 x 10000 5. The mass of one water molecule is 2.992 x 10-23 grams in scientific notation. What would be the decimal notation of this number? (Note: spaces added to make the numbers more legible.) 0.000 000 000 000 000 000 000 029 92 000 000 000 000 000 000 000 02.992 000 000 000 000 000 000 000 002 992 29,920,000,000,000,000,000,000.0 6. While visiting the Redwood National Forest in California, an informational sign says that one of the trees weighs 3.6287 x 109 grams. What is that number in decimal notation? (Note: spaces added to make the numbers more legible.) 0.000 000 003 628 7 36,287.0 3,628,700,000.0 36,287,000,000,000.0 7. There are approximately 100,000,000 people living in the Philippines. This means the population has an order of magnitude of nine. false true 8. While working in the chemistry lab, your instructor tells you that a prepared solution contains 10g of sodium per 1,000 grams (g) of water. How many orders of magnitude less is the amount of sodium compared to the amount of water? One Two Three Four Score Quiz
