PPT-Conversion Factors and Unit Cancellation

Metric Conversions Kilo k Hecto h Deca da Meter m Gram g Liter L Deci d Centi c Milli m Metric Equivalents mm daL kg dm cc L Millimeter Decaliter. When dealing with liquid or gaseous hydrocarbons the actual volume weight mass or heat content may depend upon a range of factors such as the specific gravity of the fluid the amount if any of water entrained in the mixture the temperature and press British thermal unit to kilo calorie0.252 Cubic centimeter to cubic inch 0.061103 Cubic feet to cubic metre0.02832 Cubic feet to gallons6.228 Cubic inch to litre 0.01639 Cubic metre to cubic yard 1.3 Dimensional Analysis. In Chemistry and every-day life you will often need to express a measurement using a different unit than the one that was initially used. . To convert between units we can use . Systems of Units. Section 2.3. Physical Quantity. Unit. Abbreviation. Mass. Kilogram. Gram (CGS). kg. Length. Meter. Centimeter (CGS). m. Time. Second. s. Temperature. Kelvin. K. Amount of substance. Objective: Make unit conversions. Fill in the Missing Numbers. 1 foot = _____ inches. 1 meter = _____ centimeters. 1 pound = _______ ounces. 1 minute = ______ seconds. 1 hour = ________ minutes. 1 day = __________ seconds. Conversion Factor. What is a conversion factor?. A conversion factor is a fraction whose numerator and denominator represent the same quaintly . but. use different units. . Thus the fraction is equal to 1.. Convert the following:. 440 cm to meters ________. Ans: 4.4 m. Measuring. 56.0 mL. Vocabulary. Describes qualities or appearance, such as color or texture. Qualitative description. Convert the following:. Necessary in science and engineering to work across different systems of measurement or to express quantities in different units within a single system. Conversion factor . Multiplied by a quantity to convert the quantity to . Solve unit conversion problems.. Use dimensional analysis to convert between metric units.. Determine the meaning of common metric prefixes.. Use dimensional analysis to convert between metric and non-metric units.. http://www.slideshare.net/nstahly/converting-units-powerpoints. Converting inches to feet. http://mostwatertraining.com/course/water-math/wm-1-dimensional-analysis. http://mathbitsnotebook.com/Algebra1/Units/UNConversions.html. The numbers are only half of a measurement.. It is 10 long.. 10 what?. Numbers without units are meaningless.. How many feet in a yard?. A mile?. A rod?. The Metric System. Easier to use because it is a decimal system.. Quiz 6A. . A comparison of two numbers by division. Ratio. . A comparison of two quantities that have different kinds of units. Rate. . A rate in which the second quantity is 1.. Unit Rate. . Ratios, Rates, Unit Rates, & Conversion Factors. How can we convert units?. Measurements. Every measurement needs to have a value (. number. ) and a unit (. label. ).. Without units, we have no way of knowing what the actual measurement is. Sometimes the units that something is measured in, need to be converted into a comparable unit for a calculation. The greatest Chemistry Teacher this world has ever known. International System of Measurement. Internationally used system of measurement known as the “Metric System” . Benefits of Using the Metric System.