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How do scientists express uncertainty in measurement?
What is the length of the board?
… how about now?
Is this any better?
One last time…
Reporting measurements using significant figures
Reporting Measurements using significant figures
Reading a Balance ,[object Object]
Rules for determining significant figures
How many significant figures? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Round each value to three significant figures ,[object Object],[object Object],[object Object],[object Object],[object Object]
Calculations with Significant Figures
Carry out the following calculations and report your answer with the correct number of significant figures.
Putting a number into scientific notation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Positive Exponents ,[object Object],[object Object],[object Object],[object Object],[object Object]
Negative Exponents ,[object Object],[object Object],[object Object],[object Object],[object Object]
Write each value in scientific notation.
Convert to Scientific Notation ,[object Object],[object Object],[object Object],[object Object],[object Object],Convert to Decimal Form
Rules for calculations with scientific notation.
Write this down! ,[object Object],[object Object]
Calculate
Calculate
Calculate
SI Base Units
SI Unit Prefixes

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Chapter 2 Slideshow