Activity 3.3Making Linear Measurements Purpose How thick is one of the hairs on your head? Could it be measured accurately with a standard inch scale? If the smallest increment on an inch scale is 1/16 inch‚ then 20 average size human hairs could fit within the space of a 1/16 inch gap. The required degree of accuracy needed is dependent on the application. If you were to build a home‚ a standard inch scale is perfect for laying out walls and locating window openings.A dial caliper is a precision
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The results only give an indication about precision; they give no indication of accuracy. Accuracy is a measure of how close the results are to a known literature value; however‚ because a known molarity for the hydrochloric acid is not known‚ a measure of accuracy cannot be made. In contrast‚ a measure of precision can be made using the results. Precision refers to how close a set of results are to each other. In this lab‚ the percent relative average deviation can be used as an indicator of preciseness
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CONSTRUCTION HARSH KUMAR A voltmeter is an instrument used for measuring the electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog to digital converter. Voltmeters are made in a wide range of styles. Instruments permanently mounted in a panel are used to monitor generators or other fixed apparatus. Portable
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Global Calibration Services Market 2014-2018 Calibration is an operation undertaken to compare the performance of a measurement instrument against a measurement standard. Calibration indicates the traceability of the instrument and accuracy of the measured data. Industries worldwide are opting for calibration services in their production process. Calibration undertaken at regular intervals helps identifying any faults with an instrument at the earliest‚ reducing downtime and increases production
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Summary of FRS 37: Provisions‚ Contingent Liabilities and Contingent Assets The Standard This standard distinguishes between provisions and contingent liabilities. A provision is included in the statement of financial position at the best estimate of the expenditure required to settle the obligation at the end of the reporting period. A contingent liability is not recognised in the statement of financial position. However‚ unless the possibility of an outflow of economic resources is
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Investigation - Solution Colour and Ion Concentration Aim: To investigate whether solution colour can be used to reliably determine the concentration of coloured ions in a solution. Hypothesis: the concentration of permanganate ions in the solution is inversely proportional to the percentage transmission of light through the solution. Dependent variable: concentration of permanganate ions. Independent variable: percentage transmission of light through the solution. Equipment: 20 ml
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Healthcare services had been growing rapidly and the expenditure had remarkably increased due to population that is ageing‚ advancement of technology and the demand for health care. Hospital administrators do face a great pressure in looking for methods to deliver healthcare services effectively and efficiently. According to Ross (1995)‚ an efficiency measure is a tool to assist in healthcare planning and development. The definitive objective of performance measurement mechanism is to support and
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Equipment Calibration is defined as the act of adjusting and evaluating the precision and accuracy of measured equipment. It allows the user to get an accurate and precise reading of measurements to its actual true value. However‚ in order for the experiment to be effective is must consist of validity‚ reliability‚ and objectivity. Validity is defined as the ability of a test to measure what it claims to measure. Reliability is the consistency of test results and objectivity is defined as a test
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How to Measure the Volume of a Cylinder Submitted By Ken San Nicolas I.D. #26 With Partners Alan Chu and Cathy Manlapaz In partial fulfillment of the requirements for NS 101 Natural Science Submitted to Dr. Tseng Fall 2007 Purpose: To accurately measure the circumference‚ height and volume of cylinders. Apparatus: The items used for this experiment are 1) Pencil 2) Calculator 3) Three copper cylinders 4) A Vernier Caliper Procedure: The intent is to measure the height
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Order of Magnitude * 100.5 = 3.16 (rounding value) * e.g. 4‚200‚000=4.2*106 * since 4.2 > 3.16 the magnitude is 107 (6 is rounded up) The SI System of Fundamental and Derived Units * Fundamental SI Units: Quantity | SI Unit | SI Symbol | length | meter | m | mass | kilogram | kg | time | second | s | electric current | ampere | A | thermodynamic temperature | Kelvin | K | amount of substance | mole | m | luminous intensity | candela | cd | * Derived
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