10pts for labs 1 4 and 15pts for lab 5 2pts for pre

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10pts for labs 1-4 and 15pts for lab 5 + 2pts for pre-lab quiz Lowest score (lab+quiz) is dropped 3x(10+2)+(15+2)=36+17=53 Homework: Data Analysis Module (Lab “Zero”) 2pts 5 homeworks x 1 point =7 Final Exam: 15 pts Total: 75 pts Grade formula (tentative): A: >85%, B: >70 %, C: >55%
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Lab Coordinator: Andy Briggs Office Hours: Mondays, Wed, 10-11AM in the Lab Reminders: 1.Come to lab section on time (Quizzes!) 2.Sign your data by TA before leaving 3.All reports are individual work! 4.Lab reports due prior to your next week s lab session, no late reports will be accepted!
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Today s Plan: Review (brief) of the lecture 1 Propagation of errors: Sum of two variables Addition of errors in quadrature Combination of sum/product General formula for error propagation
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Math You Should Know Handout: Please review, (available on webct)
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Rule for Stating Uncertainties: Experimental uncertainties should almost * always be rounded to one significant figure. *Exception: if uncertainty value starts with digit 1 , also keep the next significant figures Examples: x=37±3 mm (instead of x=37.86±3.42 mm) but I=8.3±1.2 A (rather than I=8±1 A)
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Rule #1: experimental uncertainties should almost always be rounded to one significant figure . (measured g ) = 9.85 ± 0.09328 m/s 2 (measured g ) = 9.85 ± 0.09 m/s 2 Rule #2: the last significant figure in any stated answer should usually be of the same order of magnitude (in the same decimal position) as the uncertainty .
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