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The Scientific Method

The Scientific Method. Using and Expressing Measurements. Scientific notation is written as a number between 1 and 10 multiplied by 10 raised to a power. . Accuracy, Precision, and Error. Accuracy is how close a measurement is to the actual or true value of whatever is measured. .

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The Scientific Method

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  1. The Scientific Method

  2. Using and Expressing Measurements Scientificnotation is written as a number between 1 and 10 multiplied by 10 raised to a power.

  3. Accuracy, Precision, and Error Accuracy is how close a measurement is to the actual or true value of whatever is measured. Precision is how close a series of measurements are to one another.

  4. Accuracy, Precision, and Error

  5. Significant Figures in Measurements Every nonzero digit is significant. (1.48 has 3 sig figs) Zeros between nonzero digits are significant. (10605 has 5 sig figs) Zeros appearing before nonzero digits are not significant. (0.00034 has 2 sig figs)

  6. Significant Figures in Measurements • Zeros at the end of a number to the right of a decimal place are always significant. (12.00 has 4 sig figs) • Zeros at the end of a number without a decimal are not significant. (12500 has 3 sig figs)

  7. Significant Figures in Calculations Addition and Subtraction: the answer has the same number of decimal places as the measurement with the least number of decimal places. Multiplication and Division: the answer has the same number of significant figures as the measurement with the least sig figs

  8. Measuring with SI Units

  9. Units and Quantities

  10. Units and Quantities

  11. Units and Quantities

  12. Units and Quantities

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