## Presentation top top theme: "Starter The radius the the moon is 1,737,000 meters. Create this in scientific notation. The diameter the a carbon atom is 0.000000000154 meters. Write."— Presentation transcript:

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1 Starter The radius the the moon is 1,737,000 meters. Create this in clinical notation. The diameter of a carbon atom is meters. Create this in scientific notation. Convert the adhering to numbers into standard notation: 6.7 x 106 8.8 x 10-4

2 Starter The radius that the moon is 1,737,000 meters. Write this in clinical notation. The diameter that a carbon atom is meters. Compose this in clinical notation. Convert the following numbers right into standard notation: 6.7 x 106 8.8 x 10-4 1.737 x 106 meters 1.54 x meters 6,700,000

3 **Measurement A amount that has both a number and also a unit.**Fundamental come the experimental sciences.

4 **Accuracy, Precision, and also Error**Accuracy- how close a measure concerns the actual worth of every little thing is measured. Precision- A measure up of how close a collection of measurement room to one another. X X X X X X X

5 **Error = speculative Value – welcomed Value**If you cook water and also the thermometer reads 99.1 C . You recognize that the boiling point is 100. C. What is the error? X X X X Error = experimental Value – welcomed Value

6 **Error welcomed Value = 100 experimental value = 99.1**Percent Error = Error embraced Value

7 far-reaching Figures

8 Sig Figs measurements must always be reported to the exactly number of far-reaching figures since calculated answers rely on the variety of sig figs offered in the calculations.

9 significant Figures just how would you document the volume of liquid in this graduated cylinder? Volume = 9.6 mL can I have actually recorded the volume as 9.65 mL? What around 10 mL?

10 **What are far-ranging Figures?**Significant numbers are the digits in a measure up that add to the precision. Ns promise this will make more sense after ~ a few examples! The number of significant figures in a measurement to represent how an accurate that measure is. For example, a measure up of 3.1 g (2 sig figs) is less an exact than a measure of 3.12 g (3 sig figs).

11 **Comparison This graduated cylinder reads: 42.9 mL**This beaker reads: 23 mL which is an ext precise??

12 **Counting far-reaching Figures**Scientists require to be able to count the number of significant figures in a number. There are rules to do this.

13 rule 1 any digit the is not zero is significant. Examples: 65.2 has 3 sig figs has actually 7 sig figs 7,324 has actually 4 sig figs

14 dominance 2 Zeros that show up between any kind of two non-zero digits space significant. Examples: has 4 sig figs has actually 6 sig figs has 6 sig figs

16 dominion 4 trailing zeros in number containing decimals space significant. Examples: has actually 4 sig figs has 6 sig figs has 5 sig figs rolling zeros leading zeros are not far-ranging

17 ascendancy 5 trailing zeros in number that do not save on computer a decimal are not significant.

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Examples: 5100 has actually 2 sig figs 232,000 has 3 sig figs 70,000 has 1 sig fig rolling zeros 70, has actually 5 sig figs

18 **Significant figures in scientific Notation**For numbers in scientific notation, determine the variety of sig figs through looking at the decimal number. Examples: x 103 has 4 sig figs 2.3 x 1026 has 2 sig figs x 10-4 has 5 sig fig