Scientific Notation - video-solutions

Scientific Notation - nanni(arn437 – Scientific Notation video – CNS –(87654 This print-out should have 5 questions Multiple-choice

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: nanni (arn437) – Scientific Notation - video – CNS – (87654) This print-out should have 5 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Express 0.0103240 in scientific notation. 1. 1.03240 × 102 2. 1.03240 × 10−2 correct 3. 1.03240 × 10−3 4. 1.0324 × 10−3 5. 1.0324 × 10−2 6. 1.0324 × 10−1 Explanation: The number is a fraction smaller than one, so the exponent is negative. The decimal must be moved 2 places, so the exponent on 10 must be −2. 002 10.0 points What is 0.00397 in scientific notation? 1. 3.97 × 10 −3 2. 3.97 × 10 5 3. 39.7 × 10 −5 correct 4. 3.97 × 103 Explanation: 0.00397 = 3.97 × 10−3 (move decimal 3 places to right) 003 10.0 points What is 45,500,000,000 in scientific notation? 1. 4.55 × 1010 correct 2. 455. × 107 3. 455. × 10−7 1 4. 4.55 × 10−10 Explanation: 45,500,000,000 = 4.55 × 1010 (move decimal 10 places to left) 004 10.0 points What is 0.00875 in scientific notation? 1. 0.0875 × 101 2. 8.8 × 10−3 3. 8.75 × 103 4. 8.75 × 10−3 correct Explanation: 0.00875 = 8.75 × 10−3 (move decimal 3 places to right) 005 10.0 points The quantity 0.0000064 g expressed in scientific notation is 1. 6.4 × 10−7 g. 2. 6.4 × 10−6 g. correct 3. 6.4 × 107 g. 4. 6.4 × 106 g. Explanation: The number < 1, so the exponent on 10 must be negative; the decimal must be moved 6 places. ...
View Full Document

This note was uploaded on 09/19/2011 for the course CH 301 taught by Professor Fakhreddine/lyon during the Fall '07 term at University of Texas at Austin.

Ask a homework question - tutors are online