# 1.2.1 Chapter 2

 Metric)Units of measurement) Length Meter Metric)Units of measurement) Volume Liter Metric)Units of measurement) Mass Gram Metric)Units of measurement) temperature Degree celsius Metric)Units of measurement) time Second Metric)abbreviations) meter m Metric)abbreviations) Liter L Metric)abbreviations) Gram g Metric)abbreviations) Degree Celsius *C Metric)abbreviations) second (s) s SI) units of measurement) Length Meter SI) units of measurement) volume Cubic meter SI) units of measurement) Mass Kilogram SI) units of measurement) temperature Kelvin SI) units of measurement) Time Second (s) SI) Abbreviations) meter m SI) Abbreviations) Cubic meter m^3 SI) Abbreviations) Kilogram kg SI) Abbreviations)kelvin K SI) Abbreviations) second (s) s What are measured numbers? Numbers that are measured by some instrument What are exact numbers? Those numbers that are obtained by counting items rules for sig figs) Rule #1: A number is a sig fig if it is... (4) -not a zero -one or more zeros between nonzero digits -one or more zeros at the end of a decimal number -in the coefficient of a number written in scientific notation rules for sig figs) Rule #2: a zero is not significant if it is...(2) -at the beginning of a decimal number -used as a placeholder in a large number without a decimal point Sig figs in calcuration for rounding) rules for addition and subtraction Final answer is written so that is has the same number of decimal places as the measurement having the fewest decimal places  ex) 4.55 + 5.2= answer should be in 1 decimal spot so tenths for this one Sig figs in calcuration for rounding) rules for multiplication and division Final answer is written with same number of sigfigs as the measurement with the fewest SFs ex) 4.55 x 5.2= final answer should be rounded to 2 SFs Authorefrain12 ID323565 Card Set1.2.1 Chapter 2 DescriptionChapter 2 Updated2016-09-25T04:59:50Z Show Answers