Units of Measurement Objectives Process Skill D Measuring

Units of Measurement Objectives: Process Skill D Measuring - Using appropriate metric units for measuring length, volume, and mass.

SI Base Units Quantity 1. Time 2. Mass 3. Temperature 4. Length 5. Amount of a substance Base Unit Abbreviation

SI Prefixes Prefix Abbreviation giga mega G M kilo deci centi milli micro nano pico k d c m µ n p Equals Scientific Notation

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega G M 1, 000, 000 109 kilo deci centi milli micro nano pico k d c m µ n p

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega kilo deci centi milli micro nano G M k d c m µ n 1, 000, 000 1, 000 109 ? pico p

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega kilo deci centi milli micro nano pico G M k d c m µ n p 1, 000, 000 1, 000 1000 109 106 ?

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega G M 1, 000, 000 1, 000 109 106 kilo deci centi milli micro nano pico k d c m µ n p 1000 1/10 or 0. 1 103 ?

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega G M 1, 000, 000 1, 000 109 106 kilo deci centi milli micro nano pico k d c m µ n p 1000 1/10 or 0. 1 1/100 (0. 01) 103 10 -1 ?

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega G M 1, 000, 000 1, 000 109 106 kilo deci centi milli micro nano pico k d c m µ n p 1000 1/10 or 0. 1 1/100 (0. 01) 1/1000 (0. 001) 103 10 -1 10 -2 ?

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega G M 1, 000, 000 1, 000 109 106 kilo deci centi milli micro k d c m µ 1000 1/10 or 0. 1 1/100 (0. 01) 1/1000 (0. 001) 103 10 -1 10 -2 10 -3 ? nano pico n p 1/1, 000 (0. 000001)

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga mega G M 1, 000, 000 1, 000 109 106 kilo deci centi milli micro k d c m µ 1000 1/10 or 0. 1 1/100 (0. 01) 1/1000 (0. 001) 103 10 -1 10 -2 10 -3 10 -6 nano n 1/1, 000, 000 (0. 00001) pico p 1/1, 000 (0. 000001) ?

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga G 1, 000, 000 109 mega M 1, 000 106 kilo k 1000 103 deci d 1/10 or 0. 1 10 -1 centi c 1/100 (0. 01) 10 -2 milli m 1/1000 (0. 001) 10 -3 micro µ 1/1, 000 (0. 000001) 10 -6 nano n 1/1, 000, 000 (0. 00001) 10 -9 pico p 1/1, 000, 000 ?

SI Prefixes Prefix Abbreviation Equals Scientific Notation giga G 1, 000, 000 109 mega M 1, 000 106 kilo k 1000 103 deci d 1/10 or 0. 1 10 -1 centi c 1/100 (0. 01) 10 -2 milli m 1/1000 (0. 001) 10 -3 micro µ 1/1, 000 (0. 000001) 10 -6 nano n 1/1, 000, 000 (0. 00001) 10 -9 pico p 1/1, 000, 000 10 -12

Base Units Base units are defined units based on an object or event in the physical world: 1. Meter = distance light travels through a vacuum in 1/299, 792, 458 of a second (or 2. 99792458 x 10 -8 seconds) 2. Kilogram = mass of a platinum-iridium cylinder that is stored at constant temperature and humidity

Derived Units made up of a combination of base units: 1. Speed = meters/second 2. Volume = 1. cubic meter (m 3) or cubic centimeter (cm 3) 2. Liter (or cubic decimeter – dm 3) 3. How is this a combination of base units? 3. Density = mass/volume (g/m. L or g/cm 3 )

Using Density and Volume to Find Mass You have a cylinder with a volume of 150 m. L and a mass of 75 g. What is its density? 1. Known values: 1. V = 150 m. L 2. m = 75 g 2. Formula 1. Density = mass/volume = 75 g/150 m. L 2. Density = 0. 5 g/m. L

Problem-Solving If d=m/V, rearrange the formula to solve for m. m = ? If d = m/V, rearrange the foemula to solve for V. V = ? Example Problem (p. 29) Assignment: Practice Problems (p. 29)