20 31.5 a) 11.31 1.131 1.134 20 b) 11.37 1.137 20 Uncertainties: Measurement of pendulum length‚ +/- 0.1 cm. This was measured with a ruler where the smallest unit shown was 0.1 cm. Half of this number (0.05 cm) is the uncertainty‚ but because there was uncertainty at either end of the measurement‚ this must be doubled. Therefore the uncertainty in length was 0.1 cm. Time measurement‚
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workshop‚ you welcome the person warmly‚ ask the person what you can do for him or her. After the discussion collect his/her address‚ phone number. It is very important in this stage. 2. MEASURE: it is a vital step in cloth making any wronge measurement will affect the end product of the garment. Cares to be taking while measuring your client /customer 1. Observe the figure of your customer. 2. Your customer should stand errate but in a natural pose while measuring him/her 3. The measuring
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Significant Figures Lab Question 1: Which measurement gives the BEST value for the mass of a single paper clip? (BEST value includes both accuracy and precision) Claim: The measurement accepted as having the best value for the mass of a single paper clip was .411493 grams (Where best accounts for both accuracy and precision). This value was achieved by taking the average weight of a total of 30 paper clips‚ all of presumably varying weights. Evidence/Reasoning: The “best” value that maintains precision
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ENGINEERING 1 (LAB) (ME141L) EXPERIMENT NO. 4 Volume Flow Rate measurement based on a Rotameter‚ a Water Level Indicator‚ a Water Meter and a V-notch Volumetric Flow. NAME: Morales‚ Mundfeil Eywynne P. PROGRAM &YEAR: M.E.- 4 Grade STUDENT NO: 2009102958 SECTION: B37 DATE PERFORMED: January 21‚ 2013 DATE SUBMITTED: January 28‚ 2013 INSTRUCTOR: Engr. Teddy Casacop EXPERIMENT NO. 4 VOLUME FLOW RATE MEASUREMENT BASED ON A ROTAMETER‚ A WATER LEVEL INDICATOR‚ A WATER METER
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Solid Mechanics Lab Report Experiment to determine the Young’s modulus of an aluminium cantilever beam and the uncertainties in its measurement 1. Abstarct: The young’s modulus E‚ is a measure of the stiffness and is therefore one of the most important properties in engineering design. It is a materials ratio between stress and strain: E=σε Young’s modulus is a unique value for each material and indicates the strength of that material as well as how it will deform when a load is applied.
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ERRORS AND UNCERTAINTIES IN EXPERINMENTAL MEASUREMENTS ELANKUMARAN NAGARAJAN 4TH DECEMBER 2011 SUMMARY Experimentation is an important process that will be carried out on new theories‚ ideas‚ products and devices to validate them. Despite the quality of the experiment there will always be some uncertainties associated with the experimental data. These uncertainties
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stronger the concentration of the solution‚ the stronger the viscosity of the solution. Variables Independent variable: * Concentration of C6H12O6 Dependent variable * Time it takes to pour 1cm3 of the C6H12O6 solution as an indirect measurement of the viscosity of the solution Controlled variable Temperature of the solution | Controlled by putting all solutions in a water bath set at 35°C until they have reached temperature of 35°C | Distance solution travels | Controlled by always
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conducting first hand investigations‚ where data is collected‚ quantified or evaluated‚ reliability refers to the consistency of the information‚ validity refers to whether the measurements you are taking are caused by the phenomena you are interested in. This relationship between reliability and validity can be confusing as measurements can be reliable without actually being valid. However‚ they cannot be valid unless reliable. It is easier to be confident of your conclusion when there a limited number
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theoretical constant that governs‚ sometimes with an iron fist‚ the everyday lives of humans. Time has many different measurements. There are stellar measurements‚ such as the phases of the moon or the rotation of the Earth around our Sun. There are extremely long measurements of time‚ like the geological epoch that can span for tens of millions of years‚ and there are very small measurements such as planck time‚ a unit commonly used to measure events in quantum mechanics and is so small that a single unit
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water. Secondly‚ after washing the electrode is wiped off by the soft tissue paper because the glass electrode is very sensitive. Also‚ the water can affect the concentration of the solution being measured which can also results in an error in the measurement. Q4. How is Vaisala probe calibrated? Ans. The Saturated salt solutions are used to calibrate the Vaisala probe. The results are transferred into the graph and compare with the standard curve and and fix it to compare the values on the standard
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