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ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant.Rule #1 ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. Example (4 sig fig) (11 sig fig)
2) ALL zeroes between non-zero numbers are ALWAYS significant. ExampleRule # 2 2) ALL zeroes between non-zero numbers are ALWAYS significant. Example (5 sig fig) (5 sig fig)
All final zeroes to the right of the decimal place are significant Rule # 3 All final zeroes to the right of the decimal place are significant Example (5 sig fig) 3,000, (8 sig fig)
Zeroes that act as place holders are not significant.Rule # 4 Zeroes that act as place holders are not significant. Example 300,000,000 (1 sig fig) 960 (2 sig fig)
Examples 508.0 807000
Significant Figures. So Many Numbers How many places do you carry out? What do we round to? These are no longer acceptable questions for the science.
Do Now “ Happiness is like a butterfly; the more you chase it, the more it will elude you, but if you turn your attention to other things, it will come.
SIGNIFICANT FIGURES. What are SIG FIG’S Digits that carry meaning contributing to its precision. They help make our “precision” more accurate Precision-the.
R ounding Nearest 10 Nearest decimal place The nearest whole number Correct to 2 dps Nearest 1000.
Significant Figures. All measurements are inaccurate Precision of measuring device Human error Faulty technique.
Do Now The speed of light is 300,000,000 m/s
Rules For Significant Digits
SIGNIFICANT FIGURES Are they significant, or “insignificant”?
The Scientific Method 1. Using and Expressing Measurements Scientific notation is written as a number between 1 and 10 multiplied by 10 raised to a power.
MEASUREMENTS. What is the difference between these two measurement rulers? Should we record the same number for each scale reading?
Counting Significant Figures:
Working with Significant Figures. Exact Numbers Some numbers are exact, either because: We count them (there are 14 elephants) By definition (1 inch =
A measured value Number and unit Example 6 ft.. Accuracy How close you measure or hit a true value or target.
How many significant figures?
Sig Figs Contents: Rules for how many How many examples
SIG FIGS Section 2-3 Significant Figures Often, precision is limited by the tools available. Significant figures include all known digits plus one estimated.
Unit One Notes: Significant Figures
Significant Figures What do you write?
Significant Figures. Rules 1.All nonzeroes are significant 2.Zeroes in-between are significant 3.Zeroes to the left are not significant 4.Zeroes to the.
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