UWEC PHYS 211 - Significant Figures (2 pages)

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Significant Figures



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Significant Figures

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Significant figures, rules for addition/subtraction and multiplication/division


Lecture number:
2
Pages:
2
Type:
Lecture Note
School:
University of Wisconsin-Eau Claire
Course:
Phys 211 - General Physics

Unformatted text preview:

PHYS 211 Lecture 2 Outline of Last Lecture I What is Physics II Units of Measure III Unit Conversions Outline of Current Lecture I Significant Figures Current Lecture I Significant Figures The significant figures in any measurement are the digits that are known with certainty plus one digit that is uncertain Addition and subtraction round the answer to the LEAST number of places in the decimal portion of any number in the problem Example 0 33m 25 0 m No decimal places answer has to have this many sig figs 7 2 m 32 53m Final answer is rounded to 33 m Division and multiplication the answer is rounded to reflect the least precise measurement Example 2 5 Least number of sig figs least precise x 3 91 9 775 so the answer is rounded to 9 8 These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute



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