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GREET 2010 Charpentier et al 2009 Bruijn 2010EnergyRedefining LLC 2010 0 20000 40000 60000 80000 100000 120000 140000 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000. Physical Science. What is a significant figure?. There are 2 kinds of numbers:. Exact: the amount of money in your account. Known with certainty.. What is a significant figure?. Approximate: weight, height—anything MEASURED. No measurement is perfect.. Objectives:. State the purpose of significant digits. State and apply the rules for counting and doing calculations with significant digits. One way engineers use significant digits….. What's so significant about significant digits?. 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. People or Groups on Reconstruction. SS.912.A.2.2 – Assess the influence of different people or groups on Reconstruction. Essential Question: . Who were the significant people or groups of . the Reconstruction Era and . RULES FOR SIGNIFICANT DIGITS. 1. Non-zero digits are ALWAYS significant.. . Example-. 123456789. 2. Zeros that are between other significant digits are ALWAYS significant.. . Example. - 3004 . 3. Final zeros that occur before or after the decimal are ALWAYS significant.. 5700. 1. 2. 3. 4. Multiply. 843.5 * 21103. 17800380.5. 1.780 x 10. 8. 1.780 x 10. 7. 17800000. Which of the following instruments would give you the most accurate measurement?. Round to 3 significant digits..  a digit that is reliably known.. Ex: 6.2 has 2 sig figs. The hundredth place is not reliably known and, thus, not reported.. The easiest way to determine . sig figs in a number . is to write the number in scientific notation.. Yönlü ve yönsüz graflar. Ağırlıklı . graflar. Gösterim. Komşuluk Matrisi. Komşuluk Listesi. Dolaşma Algoritmaları. BFS (. Breath. . F. irst . Search. ). DFS (. Depth-First Search. ). 2. What are Sig Figs?. I read in the paper that . Jimmy Haslam (owner . of the Browns) . has a net worth 2.7 . billion dollars.. Myself and a friend bought 4 tickets for $264.30. Assume that immediately after it was reported, I ran to Mr. . Dr.. . Shahid. . Dadabhoy. General Practitioner and General Practice Trainer. The . Microfaculty. , 107-109 Chingford Mount Road, Chingford, London E4 8LT. shahid.dadabhoy@nhs.net. Programme. 1300. . 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?. 4.72006 s. 0.0003 km. 400 mL. 320.0 mg. How many significant figures are there in each of the following measurements? . 4.72006 . s . (6 significant figures). 0.0003 . km . (1 significant figure). 400 . : Supporting . State . Implementation. Moderator: Tom . Munk. Panelists: . Julie . Bollmer. Cesar D’Agord. Lisa Haley. Vicki . Niskioka. 1. Agenda. 2. History . of . Significant Disproportionality . 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 .