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# Topic: Measurement

###### In the News (Mon 22 Oct 18)

 Units of Measurement We measure the length of a race in meters, but the length of the long jump event in feet and inches. There are two systems for land measurement (one based on the yard and the other on the rod) and a third system for distances at sea. In this way, all the units of measurement Americans use every day are based on the standards of the metric system. www.unc.edu /~rowlett/units   (845 words)

 measurement. The Columbia Encyclopedia, Sixth Edition. 2001-05 To express a measurement, there must be a basic unit of the quantity involved, e.g., the inch or second, and a standard of measurement (instrument) calibrated in such units, e.g., a ruler or clock. Measurement, on the other hand, involves entities that may be subdivided into smaller and smaller fractions and is thus always an estimate. This distinction between measurement and counting seems, on the surface, to break down at the atomic level, where the quantum theory reveals that not only mass (in the form of elementary particles and atoms) but also many other quantities occur only in discrete units, or quanta. www.bartleby.com /65/me/measurem.html   (492 words)

 Measurement - Wikipedia, the free encyclopedia Measurement is the process of estimating the ratio of a magnitude of a quantity to a unit of the same type. The measurement of a specific entity or relation results in at least two numbers for the relationship between the entity or relation under study and the referenced unit of measurement, where at least one number estimates the statistical uncertainty in the measurement, also referred to as measurement error. Measuring instruments are used to estimate ratios of magnitudes to units. en.wikipedia.org /wiki/Measurement   (1273 words)

 Measurement Info - Encyclopedia WikiWhat.com Measurement is not limited to physical quantities, but can extend to quantifying almost any imaginable thing such as degree of uncertainty, consumer confidence, or the rate of increase in the fall in the price of beanie babies. Established standard objects and events are used as units, and the measurement results in at least two numbers for the relationship between the item under study and the referenced unit of measurement, where at least one number estimates the statistical uncertainty in the measurement. The quantification of phenomena through the process of measurement relies on the existence of an explicit or implicit metric, which is the standard to which the measure is referenced. www.wikiwhat.com /encyclopedia/m/me/measurement.html   (389 words)

 Measurement Module Summary Page 1 Measurement, the process of quantifying observations, is one of the cornerstones of science. Measure liquid volume and capacity of containers in liters and milliliters with 50-ml syringes and graduated cylinders. Measure temperature of liquids and air in degrees Celsius with a thermometer. lhsfoss.org /scope/folio/html/Measurement/1.html   (172 words)

 General Chemistry Online: Glossary: Measurement Mass is a measure of the tendency of an object to resist acceleration. A mistake is a measurement which is known to be incorrect due to carelessness, accidents, or the ineptitude of the experimenter. Measurements are rounded so that they contain only the digits up to and including the first uncertain digit, when the number is written in scientific notation. antoine.frostburg.edu /chem/senese/101/measurement/glossary.shtml   (1351 words)

 Measurement theory: Frequently asked questions   (Site not responding. Last check: ) Measurement theory is a branch of applied mathematics that is useful in measurement and data analysis. Measurement of some attribute of a set of things is the process of assigning numbers or other symbols to the things in such a way that relationships of the numbers or symbols reflect relationships of the attribute being measured. Measurement level is of greatest importance in situations where the meaning of the null hypothesis depends on measurement assumptions. www.measurementdevices.com /mtheory.html   (5145 words)

 ScienceDirect - Measurement, Volume 41, Issue 1, Pages 1-118 (January 2008) Thermal coefficient measurements of the insulation in distribution transformers of a 20 kv network A SoC and LED based reconfigurable subminiature spectrometer for hand-held measurement applications An analysis of a measurement probe for a high impedance spectroscopy analyzer www.sciencedirect.com /science/journal/02632241   (197 words)

 Measurement Lesson Plans Making Estimations in Measurement- This particular activity was designed to provide students with an opportunity to utilize their knowledge of measurement in making accurate measurements and estimations. Measurement (cup, pt, qt, gal)- Fifth grade students will be able to rename measurements with cups, pints, quarts, and gallons and to choose appropriate units of capacity. Measurement of Objects Using Similar Triangles in The Plane- The students in the high school geometry class will apply the use of similar triangles to a sight tool in order to measure the distance between, or height of large objects such as buildings or trees. www.teach-nology.com /teachers/lesson_plans/math/measurement   (938 words)

 NIST Measurement and Standards Laboratories NIST measurements and standards already are woven into the technical infrastructure underpinning the performance of companies in scores of established industries--from machine tools to photographic film to medical devices. Accurate measurements are often core components of important technical activities undertaken at all levels of government--federal, state, and local. Measurements and measurement techniques are tools to accomplish a wide range of practical ends. www.nist.gov /public_affairs/factsheet/stdlab.htm   (3257 words)

 TheBostonChannel.com - Health Encyclopedia - Blood Pressure Blood pressure is a measurement of the force applied to the walls of the arteries as the heart pumps blood through the body. To obtain your blood pressure measurement, your health care provider will wrap the blood pressure cuff snugly around your upper arm, positioning it so that the lower edge of the cuff is 1 inch above the bend of the elbow. All you need to perform a blood pressure measurement is a cuff and a device for detecting the pulse in the artery (stethoscope or microphone). www.thebostonchannel.com /encyclopedia/6864410/detail.html   (1134 words)

 Measurement Measurement is a procedure for assigning symbols, letters, or numbers to empirical properties of variables according to rules. It is important to understand the level of measurement of variables in research, because the level of measurement determines the type of statistical analysis that can be conducted, and, therefore, the type of conclusions that can be drawn from the research. It may be easier to measure the number of students suspended from school than to measure the concept of school violence. www.csulb.edu /~msaintg/ppa696/696meas.htm   (1211 words)

 Measurement Ancient measurement of length was based on the human body, for example the length of a foot, the length of a stride, the span of a hand, and the breadth of a thumb. Measurements of the ruins of the buildings which have been excavated show that these units of length were accurately used by the Harappans in their construction. Scientists had long seen the benefits of rationalising measures and those such as Wren had proposed a new system based on the yard defined as the length of a pendulum beating at the rate of one second in the Tower of London. www-groups.dcs.st-and.ac.uk /~history/HistTopics/Measurement.html   (3196 words)

 Measurement Measurement is the assignment of numbers to objects in such a way that physical relationships and operations among the objects correspond to arithmetic relationships and operations among the numbers. Different levels of measurement are defined by the number and kind of correspondences that hold between the physical relations among objects and the arithmetic relations among the scores. The different levels of measurement are distinguished by which arithmetic operations on the measured scores have counterparts in physical operations on the objects. www.analytictech.com /mb313/measurem.htm   (1792 words)

 The Metric System The meter is a unit of length equal to 3.28 feet; the gram is a unit of mass equal to approximately 0.0022 pounds (about the mass of a paper clip); and the liter is a unit of volume equal to 1.05 quarts. Any measurement given in one metric unit (e.g., kilogram) can be converted to another metric unit (e.g., gram) simply by moving the decimal place. For example, the diameter of a red blood cell is 0.0065 cm, the distance from the earth to the sun is 150,000,000 km, and the number of molecules in 1 g of water is 33,400,000,000,000,000,000,000. www.visionlearning.com /library/module_viewer.php?mid=47   (1284 words)

 Bersoft Image Measurement Main Page Spatial calibration is available to provide real world dimensional measurements such as kilometers, centimeters, microns, or miles, for both linear and area measurements. Measurements are drawn on a vectorial layer (overlay) and they can be edited or adjusted as many times as needed, its color and position can be modified. Bersoft Image Measurement lets you visualize images in a variety of ways, including viewing histograms from partial or complete images, generating false color images, subtracting image backgrounds, merging images, inverting image colors, manipulating channels, applying spatial convolutions with masks and filters, and adjusting features such as gamma, brightness, and contrast. www.bersoft.com /bimagem/index.htm   (564 words)

 Measurement in Quantum Theory (Stanford Encyclopedia of Philosophy) The problem of measurement in quantum mechanics arises out of the fact that several principles of the theory appear to be in conflict. The second stage of the measurement, with its radical, non-linear discontinuities, was from its introduction the source of many of the philosophical difficulties that plagued QM, including what von Neumann referred to as its "peculiar dual nature" (417). The measurement problem was exacerbated by another paradox that arose in the context of the Einstein-Bohr debate: what has come to be called the EPR (Einstein-Podolski-Rosen) paradox (Einstein, Podolski, Rosen 1935). plato.stanford.edu /entries/qt-measurement   (3942 words)

 General Tables of Units of Measurement   (Site not responding. Last check: ) TABLES OF METRIC UNITS OF In the metric system of measurement, designations of multiples and sub-divisions of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth. The tables of British linear measure, troy mass, and apothecaries mass are the same as the corresponding United States tables, except for the British spelling "drachm" in the table of apothecaries mass. By action of the 12th General Conference on Weights and Measures (1964) the liter is a special name for the cubic decimeter. ts.nist.gov /ts/htdocs/230/235/appxc/appxc.htm   (1366 words)

 Measurement Measurement explores procedures for measuring and learn about standard units in the metric and customary systems, the relationships among units, and the approximate nature of measurement. You will also examine how measurement can illuminate mathematical concepts such as irrational numbers, properties of circles, and area and volume formulas, and discover how other mathematical concepts can inform measurement tasks such as indirect measurement. The 10th session explores ways to apply the concepts of measurement you've learned in K-8 classrooms. www.learner.org /channel/courses/learningmath/measurement/index.html   (78 words)

 Illuminations: Web Links - Measurement Measuring Length - In this activity, students use unifix cubes, rulers, and yarn to measure objects of various lengths and compare results. Water Measurement - This PDF file presents an activity in which students analyze and collect data on the level of a container of water as it evaporates over four days. Varnelle's Primary Math--Intro to Measurement - These lessons are designed to engage young children in a series of activities where they measure and describe the attributes of integer bars. illuminations.nctm.org /WebResourceList.aspx?Ref=2&Std=3&Grd=0   (1784 words)

 Measurement is the measure, in terms of degrees, of damage to the surface and the effects on humans. First, the amplitude of the surface wave is measured on a seismogram produced by a Wood-Anderson seismometer (a specfic type of seismometer) and then it is compared with distance from the earthquake or the S-P time (which is the amount of time between the P-wave and S-wave arrival) to yield a magnitude. Using the seismic waves and field measurements that describe the fault area, the moment, a parameter related to the angular leverage of the forces that produce slip on a fault, can be measured. scign.jpl.nasa.gov /learn/eq8.htm   (492 words)

 Measurement-What is it? Review Team results-(time limit 15 minutes) Each teams measurements are recorded and compared to the measurements of that item in feet and inches or meters. their ability to apply their prior knowledge to solving measurement problems when non-standard resources are substituted for traditional tools and definitions. Students should be able to apply the rules of measurement, using various tools and types of units of measures and know which tools and measurements are applicable for appropriate applications. www.iit.edu /~smile/ma9302.html   (514 words)

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