observation and/or measurements taken under identical circumstances will | |first-hand data |yield the same results. | When discussing the accuracy of measurements a dictionary definition such as that provided in the Australian Oxford Dictionary is appropriate: |accuracy |The exactness or precision of a measurement; relating to the degree of refinement in measurement or
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Determining the enthalpy change for the thermal decomposition of potassium hydrogen carbonate into potassium carbonate. Controlled Variables: 1. Volume of HCl ± 0.5 cm3 (± 2%) 2. Concentration of HCl‚ 3. Same mass of K2CO3 and KHCO3 within specified ranges of 2.5 – 3.0g and 3.25 – 3.75g respectively 4. Same calorimeter used i.e. polystyrene cup is used in this experiment 5. Same thermometer will be used ± 0.10K 6. Same source of K2CO3‚ KHCO3 and HCl Raw Data Results: The raw
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Solid Mechanics Lab Report Measurement of Young’s Modulus Sherin Joseph 00549618 Measurement of Young’s Modulus of Aluminium using Cantilever loading Abstract The Young’s modulus of Aluminium was calculated using the measurements of the cantilever deflections. A beam of aluminium was clamped on one end and the other end was loaded with different weights‚ ranging from 1 to 15N. The deflection was then measured using a dial gauge. The slope of a load (abscissa) vs. deflection (ordinate)
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change due to the length of wire. The length of wire will be measured accurately using a metre rule. The wire will be stuck onto the rule using tape. This means that the wire will not move about so we can measure the length accurately. Repeating measurements improve accuracy as you can spot any anomalies and the results can be averaged to give more reliable results. The voltmeter will give the reading for voltage ( V ) and the ammeter will give the reading for current ( I ). The resistance will then
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BENKELMAN BEAM METHOD A.C.Benkelman devised the simple deflection beam in 1953 for measurement of pavement surface deflection. It is widely used all over the world evaluation of the requirements of strengthening of flexible pavements. This method is done to lay down a uniform procedure for the design of flexible overlays or per I R C:81-1981 here a tentative guideline was published by the Indian road congress under the title “Tentative Guidelines for strengthening of flexible road pavements using
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examining the Values and Motives Inventory (VMI) are the issues that encompass the reliability and validity of this instrument. Reliability not only examines the dependability of scores‚ but also measures and accounts for the standard error of measurement (SEM) within the instrument (Whiston‚ 2009). The SEM is a hypothesis of what the scores would be if one took the test more than once (Whiston‚ 2009). Validity is when the test actually “measures what it claims to measure” (Values and Motives Questionnaire
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i Chapter 6 Measurement of Precipitation CONTENTS 6.1 Definitions and Units ............................................................................................................ 1 6.2 Observation Instruments ..................................................................................................... 1 6.2.1 Cylindrical Rain Gauges and Ordinary Rain Gauges ................................................ 1 6.2.2 Siphon Rain Gauges ............................................
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POVERTY – AS A QUALITATIVE AND QUANTITATIVE CONCEPT (With reference to the Indian context) What does it really mean to be poor? The First World countries are often referred to as the “industrialized” nations as against the Third World “developing” nations. What does it imply when you describe a nation as “developing”? Can lack of mere material resources imply deprivation? Doesn’t a strong economy in a developed nation lose gravity of ground when the major proportion of its population struggles
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By: Nada Al Rashedi ID: 201310302 Case incident 1: Answers 1. What are some of the things managers can learn by walking around and having daily contact with line employees that they might not be able to learn from looking at data and reports? A: this style of management has advantages over typical desk-round approach to management. It is an approach common to several firms that received national awards for being a great place to work. 2. As an employee‚ would you appreciate knowing your
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should measure. If I’m the accountant I should be knowledgeable on the nature and I should have understood necessary facts about the account when doing measurement or on examining the reasonableness of the measurement method used by the management. In addition‚ in measuring risks like financial risk‚ I should use a valid and reliable risk measurement technique because the information that I’ll be giving will be the basis for the management’s decision-making. If I have measured the things incorrectly
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