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Significant Figures and Scientific Notation

Significant Figures and Scientific Notation. How many significant figures are in the measurement below and choose the best answer. 0.0450600 g. 7 3 6 5 4. How many significant figures are in the measurement below and choose the best answer. 0.0 450600 g. Rules:

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Significant Figures and Scientific Notation

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  1. Significant Figures and Scientific Notation

  2. How many significant figures are in the measurement below and choose the best answer. 0.0450600 g • 7 • 3 • 6 • 5 • 4

  3. How many significant figures are in the measurement below and choose the best answer. 0.0450600 g Rules: 1. All nonzero digits are SF. 2. a. Captive zeros are sig figs (wedged between sig figs). b. Leading zeros are NOT sig figs c. Trailing zeros are sig figs if there’s a decimal. Alternatively you can combine rules 2b & 2c into this one statement: Non-wedged zeros are only SF if they are to the right of a decimal AND to the right of a nonzero (not necessarily beside) • 7 • 3 • 6 • 5 • 4

  4. Use you calculators to solve the following equation and choose the best answer • 1.35 x 10-4 • 1.40 x 10-4 • 1.35 x 10-36 • 1.3518 x 104 • 1.352 x 10-4 • 1.3 x 104 • 1.4 x 10-36 • 1.3518 x 10-36 • 1.3 x 10-36

  5. Use you calculators to solve the following equation and choose the best answer • 1.35 x 10-4 • 1.40 x 10-4 • 1.35 x 10-36 • 1.3518 x 104 • 1.352 x 10-4 • 1.3 x 104 • 1.4 x 10-36 (2 SF) • 1.3518 x 10-36 • 1.3 x 10-36 = 1.35185185 x 10-36 Multiplication/division Rule: The result must be rounded to the same number of significant figures as the measurement with the fewest significant figures.

  6. Use you calculators to solve the following equation and choose the best answer 5.640 x 1012 m x 9.4300 x 10-25 m • 5.32 x 10-12 m • 5.31852 x 1012 m2 • 5.319 x 10-12 m2 • 5.3185 x 10-12 m2 • 5.32 x 10-12m2 • 5.319 x 10-12 m • 5.31852 x 10-12 m

  7. Use you calculators to solve the following equation and choose the best answer 5.640 x 1012 m x 9.4300 x 10-25 m 5.31852 x 10-12 m2 • 5.32 x 10-12 m • 5.31852 x 1012 m2 • 5.319 x 10-12 m2 • 5.3185 x 10-12 m2 • 5.32 x 10-12m2 • 5.319 x 10-12 m • 5.31852 x 10-12 m Multiplication/division Rule: The result must be rounded to the same number of significant figures as the measurement with the fewest significant figures.

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