P6 Lesson 1.pptx - Physics 621A(Online Introduction Lesson 1 Skill Sets 2 3 5 Know your Textbook Table of Contents pg iv Skill Sets pg 938 Appendices pg

# P6 Lesson 1.pptx - Physics 621A(Online Introduction Lesson...

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Physics 621A (Online) Introduction & Lesson 1: Skill Sets 2, 3 & 5
Rounding & Significant Figures Read Skill Set 2 page 940-941 and know… the rules of significant digits rounding rules scientific notation Note: Significant Digits will be applied for all calculations throughout science. Scientific notation is used regularly but not necessarily always (see ambiguous case pg. 940) HW: Problems pg 942 #1-7
Rules of Significant Digits/Figures 1. All Non-zero digits are significant 2. All digits used in scientific notation are significant 3. Zeros between non-zero digits are significant (107, 14005) 4. Trailing zeros to the right of the decimal are significant: 2.500, 195.68000, 5. Leading zeros to the right of the decimal (0.00012) are not significant 6. Ambiguous Case: Trailing zeros to the lef of the decimal are not significant but if they are meant to be then scientific notation must be used: Ex) 1400 appears to have 2 significant digits, if the zeros are meant to be significant then it must be written as
Scientific Notation Ex) Write each in scientific notation a) 1.368 b) 1200 c) 0.148 d) 0.0000100
Scientific Notation ANSWERS Ex) Write each in scientific notation a) 1.368 = 1.368 x 10⁰ b) 1200 = 1.2 x 10³ c) 0.148 = 1.48 x 10⁻¹ d) 0.0000100 = 1.00 x 10⁻⁵

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