We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byHunter Lowe
Modified over 3 years ago
Converting the Big Kids Way!Dimensional Analysis Converting the Big Kids Way!
So Go Back to Conversions1 m = __________ mm 1 000 1 m = 1000 mm 1 m = 1 1000 mm .
Other Conversions 100 cm = 1 m 1000 g = 1 kg 10 dL = 1 L 1 m = 1OR OR OR
Find the conversions on your periodic table
Dimensional Analysis First know what you START WITH!Don’t forget units Don’t lose decimal point Second know what you END WITH It is usually unknown except for the unit.
Put it together Start: 360 s End: x ms 360 s x (some conversion)(rest of conversion)
Put it together Think: Which gets rid of “s” So you have to use “ ” SS x S OR S
Put it together Start: 360 s End: x ms 360 s x (some conversion) =something “s” S
Put it together Start: 360 s End: x msWe want “ms” so it goes in the numerator 360 s x something “ms” something “s” Find the conversion on your periodic table
Put it together Periodic Table: 1 ms = 1 x 10-3 s 1 ms . 1 x 10-3 s OR
Put it together Start: 360 s End: x ms End: x ms Which works better?360 s x 1 ms . 1 x 10-3 s 1 x 10-3 s 1 ms
Put it together 360 s x Put it in your calculator 360,000 ms 1 ms .1 x 10-3 s
Steps to Dimensional AnalysisLabel start (with unit) Label end (with unit) Identify conversion factor Set up railroad Write answer Sig Fig final answer
Practice Convert 12 moles H to grams H.
Metric Conversions w/o Dimensional Analysis Just move the decimal!!
Chemistry 100 Significant Figures. Rules for Significant Figures Zeros used to locate decimal points are NOT significant. e.g., 0.5 kg = 5. X 10 2 g.
Do You Know Your Conversions?. Metric Conversions Click on the space bar when you want to reveal the answers. 1 cm = ____ mm 1 dm = ____ cm 1 m = _____.
Lesson 1.06 Unit Conversion.
MEASUREMENT AND CALCULATIONS Chapter 9.2. Significant Digits The international agreement about the correct way to record measurements: Record all those.
The Mole Concept.
MEASUREMENT AND CALCULATIONS Chapter 9.2. Significant Digits ► The international agreement about the correct way to record measurements: ► Record all.
Measurement in Chemistry Factor-Label Method The Factor-Label Method At the conclusion of our time together, you should be able to: 1.Recognize a problem.
FACTOR LABEL / PROBLEM SOLVING Chapter 4. Three step approach 1. Analyze a. What is known? b. What is unknown? c. Plan a solution strategy 2. Calculate.
How many Kilometers are in 3.46 x mm?. First, write what you are given.
Significant figures A significant figure represents an actual measurement A measurement of all the digits known with certainty, plus one that is estimated.
Metric Conversion Practice
SL#14 How to use Conversion Factors (a.k.a. Dimensional Analysis)
Measurement and Sig. Fig. Practice
Scientific Notation & Dimensional Analysis Chapter 2.2.
C. Johannesson I. Using Measurements (p ) CH. 2 - MEASUREMENT.
Physics Tools and Standards
MEASUREMENT AND CALCULATIONS Chapter 9.2. Significant Digits When we measure and calculate values, we can only use a number of digits in our answer that.
Factor Labeling or DA Problem Solving: The easy way!!!
Measurements in Experiments Chapter 1-2. Numerical Measurements Are used to perform science experiments. Gives number and dimensional unit Example :
Dimensional Analysis The importance of units in calculations.
International system of unit. International system of units.
Topic: Chem Math Aim: How do you perform unit conversions? What is the factor label method? Do Now: How many inches in a foot? Feet in a yard? So… how.
I II III I. Using Measurements (p. 8-15) CH MEASUREMENT.
Almost all other countries are using the metric system Other countries’ companies are refusing to buy products from the U.S. if not labeled in metric.
Dimensional Analysis Factor Labeling.
Chemistry Chapter 3 Review Game. Sig Figs Calculations Conversion FactorsDensity 1 point 1 point 1 point 1 point 1 point 1 point 1 point 1 point 2 points.
Scientific Notation Scientific Notation: a method for __________________________________________. Moving the decimal to the _______________exponent, to.
Course Outline Math Review Measurement Using Measurements.
I II III Using Measurements MEASUREMENT. Accuracy vs. Precision Accuracy - how close a measurement is to the accepted value Precision - how close.
No decimal: Everything EXCEPT 0’s at the end (4100 2 sig. fig.’s) Decimal: Everything EXCEPT 0’s at the beginning ( 2 sig. fig.’s) (1000. 4.
Mathematical Operations with Significant Figures Ms. McGrath Science 10.
I. Using Measurements (p )
METRIC SYSTEM. Measuring Systems were confusing!!! Everyone used a different method!! We did not speak same language!! Could Not trade!!
Significant Figures. Why do we need to know significant figures? We as scientists need to measure things as we perform experiments. Instruments have different.
Introduction: Matter and Measurement Chapter 1. Uncertainty in Measurement The term significant figures refers to digits that were measured. When rounding.
Significant Figures Part II: Calculations.
Name: Unit Analysis.
Rule 1: When multiplying and dividing, limit and round to the least number of significant figure in any of the factors. Example 1: 39.0 mm X 385 mm X.
Significant Figures Rules If the decimal is Present, then go to the Pacific side of the measurement, count the first non-zero number and count all other.
Thursday!!!!! 9/1/11 Bell Ringer Get out your Numbers in Science lab, your notes from yesterday, and complete your lab. Turn it in to your tray when you.
Factor Label Method Discussion also called “dimensional analysis” used to convert units and solve problems.
Organized method of problem-solving Used in chemistry, physics, engineering, and medicine Communicates the path to scientists that follow your work Records.
Unit 2:SCIENTIFIC MEASUREMENT
Chapter 2 Data Analysis, Part II. Metric Conversions Move the decimal to the right Move the decimal to the left o Every metric unit is different from.
Uncertainty in measurement Every measurement has error associated with it. The more precise the measurement the less error. Error in a measurement.
Chapter 3 Measurement Accuracy vs Precision Percent Error
Significant Figures How to work with lab data, and correctly round calculated values.
© 2017 SlidePlayer.com Inc. All rights reserved.