1.2 Measurements in Experiments. Chapter 1 Section 2 Part 2 – Accuracy, Precision & Significant Figures. Accuracy. Accuracy – The extent to w hich a reported measurement approaches the true value of the quantity measured.
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Chapter 1 Section 2
Part 2 – Accuracy, Precision & Significant Figures
Accurate and Precise
Not Accurate or Precise
4. Zeros at the end of a number but to the left of a decimal are significant if they have been measured or are the first estimated digit; otherwise, they are not significant.
1000. m (4 sig figs)
103.15 → round off → 103.2
658.05 → round off → 658
List how many significant figures are in each number.