# Chemistry Chapter One: Pt. 3

 What are derived units? Units that combine several fundamental units to derive their unityexample: area= length x length In the lab, what do we measure the volume of a solid, liquid, and gas, as? solid: cm3liquid: mLgas: L Why is the volume of a gas measured with its measurement and not that of the liquid? It deals with the density of water1 mL= 1 cm3Water is more dense at 3.98oC as a liquid. As you get away from the liquid state, the density decreases, making water lighterBecause gas is not very dense, it is measured in g/L Each cubic meter contains __ cubic decimeters, which contain __ cubic centimeters. 10001000 What is accuracy? how close to a true value a given measurement is What is precision? how well a number of independent measurements agree with each other- How well can you repeat/ receive the same value? What is standard deviation amount of precisionthe higher it is, the less precise your answer What should we pay attention to when doing measurements? significant figures Does it matter what we measure with? Yes Area length x length volume area x length density mass per unit volume speed distance per unit time acceleration change in speed per unit time force mass x acceleration pressure force per unit area energy force x distance AuthorDesLee26 ID169243 Card SetChemistry Chapter One: Pt. 3 DescriptionChapter One Updated2012-09-06T12:59:38Z Show Answers