PPT-Physical quantities, units and measurements

Base quantities and units Base quantity Symbol Base unit Unit symbols Instruments Mass m kilogram Kg Beam or lever balance top pan balance Length l metre m Metre rule ruler vernier. 1 02 03 04 05 06 07 08 09 1 Measured Value of x Fraction of Total Measurements SD 01 SD 02 SD 03 brPage 5br mean standard deviation histogram Figure 3 Mass of Unknown Sample 102 104 106 108 11 112 114 116 118 12 Mass kg of Measurements brPage 6br Physical Quantities AngAng. Position . Position ––an objectan object’’s s orientation[radianorientation[radian] ] 2 2 radians = full circle = 360radians = full circle = 360 AngAng. Warm Up: Think, Pair, Share. OBJECTIVE:. SWBAT understand that positive and negative numbers are used together to describe quantities having opposite directions or values by using positive and negative numbers to represent quantities in real world context.. A.S. 1.1.1 – 1.1.3. Is the US a metric country? Should it be?. Read the article you’ve been handed with these two questions in mind.. 5. minutes—. silent . read and take notes.. Turn and talk to your group members (you all had the same article)—2 minutes. The properties of matter must be measured correctly and reported without ambiguity. . Value- A quantities description that includes both a number and a unit. Units- quantities defined by standards that people have agreed to use to compare one event/object to another. By the end of this unit you will be able to:. Define Science and the requirements for something to be scientific. Describe why certain topics are not scientific. Describe the scientific method. Describe the difference between fundamental and derived units. By Amanda Thompson. Stages of . Measurement Development. Stage 1:. Plays and Imitates. Children play and imitate adults and older children by using measuring sticks or rulers, exploring with scales, working with measuring cups and spoons, and observing different temperatures. . Measurements and Their Uncertainty. 3.1. 3.1. Measurements are fundamental to the experimental sciences. For that reason, it is important to be able to make measurements, and to use them correctly when calculating answers.. 3.1 Measurement and their uncertainty. Using and expressing measurements. Measurement: a . quantitiy. that has both a number and a unit.. 60 mph, 85 degrees . Farienheit. . Measurements are fundamental to the experimental sciences. Because of that, it is important to be able to make measurements and decide whether a measurement is correct. . Dimensional analysis. Dimensional analysis. uses conversion factors to convert from one unit to another. . Also called Factor Label (and railroad tracks) . You do this in your head all the time. How many quarters are in 4 dollars? . Curriculum links. Adult Numeracy. MSS1/L1.7. . Convert units of measure in the same system (a) know the relationship between metric units. MSS1/L2.5. Calculate with units of measure within the same system (a) know the relationship between metric units. Curriculum links. Adult Numeracy. MSS1/L1.7. . Convert units of measure in the same system (a) know the relationship between metric units. MSS1/L2.5. Calculate with units of measure within the same system (a) know the relationship between metric units. Proportion – Learning Outcomes Express quantities as proportions of each other using fractions, decimals, ratios, and percentages. Divide quantities into a given proportion. Express errors as a proportion. COURSE OUTCOME . :. To . understand the basic units and unit operations in . chemical . engineering. .. Specific Outcome . 1.1.1 . Explain the various systems of units . 1.1.2 . Explain the difference between fundamental and derived units .