Measurement and Uncertainty When recording data‚ each entry should be given a corresponding estimated error‚ or uncertainty. The uncertainty gives the reader an idea of the precision and accuracy of your measurements. Use the following method for finding the uncertainty associated with any measuring device used in lab. First‚ find the least count‚ or the smallest printed increment‚ of the measuring device. On the meter sticks‚ the least count is 1 mm. On the double pan balances‚ the least count
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Nutrition Density Essay After having calculated the nutrient density of seven food groups in a spreadsheet‚ the food group that came to have the highest Nutrient Density was the vegetable group obtaining an average of 7.76712 Nutrient Density. The food group that came to have the lowest Nutrient Density was the “junk food” group‚ having an average of 0.24845 Nutrient Density. One of the factors that contribute to foods having a high or low Nutrient Density is the amount of calories. I noticed that
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Shingala Dr. Campagnolo Chemistry H September 24‚ 2013 Lab on Density of Four Metals Conclusion In this lab we studied the densities of four different metals using a caliper‚ a digital scale‚ and a calculator. Three metals were pure elements like copper‚ iron‚ and aluminum. The fourth metal was an alloy which was brass. The purposes of this lab were to demonstrate that different metal elements have different densities‚ and that alloys have densities somewhere between those elements that compose them
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Principles of Measurement (International) For Works of Construction JUNE 1979 Published by RICS Business Services Limited‚ a wholly owned subsidiary of The Royal Institution of Chartered Surveyors‚ under the RICS Books imprint‚ Surveyor Court Westwood Business Park Coventry‚ CV4 8JE UK No responsibility for loss occasioned to any person acting or refraining from action as a result of any material included in this publication can be accepted by the authors‚ publisher or The Royal Institution
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Density is how compact particles are inside an object. Objects can be different sizes but have the same density because the density depends on how close particles are together‚ not the size of an object. The density of water is 1 g/㎤. Any object with a density less than that will float. Any object with density more than that will sink. Carbon dioxide‚ or CO2‚ also played a big role in this experiment. Many soft drinks contain CO2. Studies show that Sierra Mist had the most carbonation out of
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Laboratory Techniques and Measurements Choose any three objects that are shorter than the metric ruler to measure‚ such as a CD‚ Key‚ spoon etc. OBJECT | LENGTH (cm) | LENGHTH (mm) | ruler | 30.5 cm | 305 mm | thermometer | 15.1 cm | 151 mm | pencil | 16.7 cm | 167 mm | Warm Temperature Measurements * Fill a 100 a 100mL beaker with 50mL of hot water. Get the water as hot as possible. * Use thermometer to measure the temperature of the water in the beaker using Celsius unit
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quantities. All engineers must use the same language in their communications‚ and one of these universal communication tools is the units of measurements. Physical quantities such as length‚ weight‚ time‚ speed‚ force‚ and mass are measured with standard units. Therefore the magnitude if a physical quantity is given by a number and standard unit of measurement. Examples: 5 meters‚ 60 kilograms. SI units are the international system of units (system international). The SI Base Units for the seven
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The purpose of this experiment was to determine the density of an object by measuring its mass and volume. Hypothesis When the rubber stopper is dropped into the overflow can‚ the volume displaced (mL) will be equal to the number of grams of the rubber stopper. I think this will be the outcome because I learned before that 1g=1ml‚ so for every gram dropped into the overflow can‚ 1 ml should be displaced (the volume). Therefore I think the density of each rubber stopper would be 1g/ml. Materials
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have the same volume as the original model. Q1. Use a piece of A4 paper to make a box with a length of 10cm and a width of 3cm. Then find the volume of the box and the total surface area of the paper used to make the box. T.S.A: 5 rectangles and 4 squares 5 x L x W + 4W = 5 x 10 x 3 + 4 x 9 = 186cm Volume: 5 rectangles and 4 squares L x W x H = 10 x 3 x 3 = 90cm Q2. Make another box with the same general shape‚ but chose a different length and width. Then find the volume of the box and
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ME 4600:483 – Lab Notes Revised 04/07/05 Flow Measurement Table of Contents Flow Measurement ......................................................................................................................... 1 I. Objective ................................................................................................................................. 1 II. Apparatus...................................................................................................................
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