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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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Using and Expressing Measurements Scientificnotation 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. Precision is how close a series of measurements are to one another.
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)
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)
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
