PPT-Significant Figures
Author : ellena-manuel | Published Date : 2016-10-20
Rules for Significant Figures A Read from the left and start counting sig figs when you encounter the first nonzero digit 1 All non zero numbers are significant
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Significant Figures: Transcript
Rules for Significant Figures A Read from the left and start counting sig figs when you encounter the first nonzero digit 1 All non zero numbers are significant meaning they count as sig figs. What are Significant Figures?. They are all the numbers in a measurement that are known with . certainty. plus the first digit that is uncertain.. Why use Significant Figures?. Significant figures are needed in science, because the tools we use to measure are not infinitely accurate. Easy as…. IDing. Sig Figs. Significant . Figures. . All the digits used to report a measurement including the uncertain . digit (your guess).. The only digits that are NOT considered significant are zeros that are present simply as placeholders. . 2.3. A. What are Significant Figures?. The number of all certain digits in a measurement plus one estimated digit.. Example. 2.0 cm. 1. 0. 2. 3. 4. cm. 2 Significant figures. Examples. 1. 0. 2. 3. 4. References :. Basic Principles and Calculations in Chemical. Engineering, 7 edition,. . . David. M. . Himmerblau. and James B. Riggs.. ปริมาณสัมพันธ์สำหรับงานอุตสาหกรรม เล่ม . Measurements and Their Uncertainty. 3.1. 3.1. Measurements are fundamental to the experimental sciences. For that reason, it is important to be able to make measurements, and to use them correctly when calculating answers.. Cartoon courtesy of . Lab-initio.com. Uncertainty in Measurement. . A digit that must be . estimated. . is called . uncertain. . A. . measurement. . always has some degree of uncertainty.. Why Is there Uncertainty?. …Matter is anything that occupies space.. The Six Levels . of Thought. Knowledge. Comprehension. Application. Analysis. Synthesis. Evaluation. “Success is a journey, not a destination.”. -Ben Sweetland. Chemistry is the study of the properties of . matter. and . changes. they undergo.. . It is central in all scientific studies.. It is essential in the understanding of nature; . What is . Matter. ?. Tonya Patterson. Chemistry. Is the study of matter and the changes it undergoes. Often referred to as the central science. Why study chemistry?. Scientific Method. A systematic approach to research. Used by all sciences. 1 All non-zero digits are always significant154 3 sig figs 2 Interior zeros zeros between nonzero numbers are3 Leading zeros zeros at the beginning of a number are NOT 0103 3 sig figs 0000002 1 Sections Section 1 Formatting Figures within the Thesis or Dissertation p 2Information in this manual has been modified fromx0000x0000Updated by GC SST Summer 20212Section 1 Formatting Figures within Homework for Chapter 1. Read Chapter 1. HW 1: pp. 26-31: 2,3,8,16,18,19, 28,29,38,39,52,54,56, 62, 68, 73, 74, 75.. Warmup. Perhaps the most recognizable equation in physics comes form Einstein’s theory of relativity: . In physics we will be taking measurements and using a lot of numbers for calculations. However, we have to be aware of significant figures (sig figs) because every measurement has a certain degree of . Length is measured by observing the marked lines at . the end . of a ruler. The last digit in your measurement is an . estimate, obtained by . visually dividing the space between the marked lines.. Learning Goal .
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