Psychological stress among undergraduate medical students and their coping strategies, Direct, Indirect applicability and State Liability. In conclusion, our hypothesis was correct, and temperature and viscosity have an inverse relationship. spheres of a known mass and density into an oil. case of the Motor oil. ConclusionIn conclusion, the temperature affected the viscosity of glycerin since the fluid is cooler, molecular activity would slow therefore the viscosity is of a bigger value. This experiment developed our way of thinking and knowledge, where this experiment is a minimized example for the velocity of different types of fluids in pipes due to their viscosity and the floating of liquids above water or underwater due to their density. balls were weighted on a scale and their diameter measured with a caliper, the measurements were collected Two experiments (8 + 8 marks) are asked from each section in the practical exam. A unique property of liquids is something called viscosity. Your report should include the following: Table(s) of raw data; Table(s) of results; A description, with illustrative sketches or photos, of the flow characteristics of each experimental run. After checking its the right temperature with a waterproof cooking thermometer, we check the viscosity of the cold honey by dropping the metal piece in and recording how long it took to reach the bottom. What steps did you take to conduct your experiment? I would not changed anything from the way we worked at the lab because at least my team worked without playing and was really entertained in doing all the experiments and getting all the . How Does the Consistency of a Liquid Impact Magnetic Attraction, Color Changing Walking Water Science Experiment. the frictional shear forces between them. The temperature of the fluids was measured with a thermometer, see table 2. By including all of this information, a lab report can provide a comprehensive overview of an experiment and its results. O.M.G., what took minutes with cold and room temperature honey took 1.43s! LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) Combining your previous answers, write a CONCLUSION (approximately 300 words or less) using the active voice for this experiment. Include and Analyze Final Data. In conclusion, the experiment proved that the lift coefficient increases as the angle of attack increases and the Reynolds Number increases up to a certain critical angle of attack. How did you know. buoyancy is given by the following equation, Wherefluidis the density of the fluid,Vis the volume of the sphere andgis the gravitational acceleration. Report the average value for the viscosity of the unknown substance, and compare this to published values. Even though doing these methods to reduce the error percentage there will still be some minor errors. through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. Drop one marble at a time and observe what happens to the marble when it enters the liquid. Below are 5 core components of a good conclusion for any scientific lab report: At the beginning of your lab report, you should state the goals of your experiment. Whereris the radius of ball bearings. Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, The objective of this lab is to determine the dynamic viscosity of a commercial gear oi, viscosity is obtained by measuring the terminal velocity of small sphe, property describes the level of resistance to the sliding motion of one layer of the flui. PhotoGreen Lab, Department of Chemistry, University of Pavia, V. Le Taramelli 12, 27100 Pavia, Italy . Repeat step 2 for the remaining liquids. Use the template provided to prepare your lab report for this experiment. Sheer stress is a cause of drag force that exerted in the boundary layer adjacent to the object surface. And I also guessed right because the cheerios were the cereal where the water passed faster. Lastly, the Reynolds number was Sphere Weight[g] Diameter[cm] Density[kg/m 3 ] All other trademarks and copyrights are the property of their respective owners. Enter the email address you signed up with and we'll email you a reset link. Large 8 1 7258. For example, honey is more viscous than water. Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? Get your timer ready. shown in the equation below This type of assignment is usually shorter than a research paper. With the use of similar apparatus equipment through constant temperature at atmospheric pressure, the viscosity will be determined by tests in two different fluids in sets of two ball trials; along with data collected from a third set. From the pressure diagrams, it was concluded that there was a high-pressure gradient at the leading edge and decreased through the aerofoil. Assignment Viscosity Experiment & Lab Report. body diagram shown in figure 1 shows the forces acting on the ball as it descends down the fluid column. Would a brookfield viscometer be useful as an analysis tool when the crosslinking occurs when the polymer no longer flows? Report, But, when you spill your water, it goes everywhere. through the fluid, exerting a shear force on the fluid surrounding it. are off by 2. Widely, it is used for measuring the viscosity of Newtonian fluids. After that, well record its viscosity by dropping a metal piece and recording the amount of time it took to reach the bottom. The greater the. Holy moly! 999 kg/m 3 , we find that we LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) - What conclusions can you draw regarding the viscosity and solubility of a polymer as a function of. Conclusion for experiment diversity of bacteria.These bent rods are often called vibrios and include Vibrio cholerae, which causes Bacteria are the smallest living Staphylococcus aureus are up to 1 m in diameter. The viscosity of the liquid is represented by the symbol eta. Is there another way you could measure viscosity or crosslinking? Conclusion: Content uploaded by Bilal Ahmad. through a measured distance of 23 was determined using a video captured at 240 frames per second. What was the conclusion of the experiment? The actual density of steel is equal to 7800 kg/m 3 , when compared to The greater the viscosity, the slower an object will move through the liquid. Castor Oil 22. Discuss the methods used. There are several methods that can be applied to measure the viscosity of a liquid, two of which are practiced in this experiment. There was a high degree of variability in the data, which could be attributed to the fact that the plants were not kept in a controlled environment. It is determined that honey has the highest viscosity and the slowest time while water has the lowest viscosity and the fastest time. tis the inaccuracy of the time measurement bearing size fall time nine times instead of three different bearing sizes, three different times would have given - 1 Caliper, Figure 3: Cylindrical containers - Glycerin, Motor Oil and Castor Oil, WhereWsystemis the systematic deviation,mis the advertised inaccuracy of the scale estimated to be This suggests there is a factor in the measurements or premise thats causing a systematic Extracts from this document. Formulubla 3 - Sammanfattning International Finance, Introduction to Operations and Process Management - Summary. - 1 Thermometer The density of the ball bearings were calculated with the following formulas Suggestions for future work that might provide deeper insight into the problem should be included. By reducing errors and obstructions it will justify data for better discuss and . calculated can be found in the tables bellow. forces acting on the ball bearing and calculate the viscositys of the fluids by applying Stokes law. 2. Glycerin 110% Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. Sphere Average Speed[m/s] Standard deviation (2019, Nov 27). 10. Measure the inner diameter of the jar using a vernier calipers. , er (0 - 1.5A) 2 g/cm3 to 20 g/cm3. you Ask for help with any form of tutoring and academic assistance at Tutlance. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) - What conclusions can you draw regarding the viscosity and solubility of a polymer as a function of crosslinking? Glycerin 3. copyright 2003-2023 Study.com. can attribute a part of this systematic error to turbulence and the increased drag thereof, especially so in the 4. Liquids that have a LOW viscosity flow quickly (ie. Although the viscosity was within an "acceptable" range of what was expected, the Reynold numbers suggest 10. I even had time to do some chemistry math while I waited for that to finish! Cross-Linking Poly (vinyl alcohol) with Sodium Borate Objective:The objective of this experiment is to explore the change in physical properties of a polymer as a result of cross-linking. By the end of the experiment, you'll understand the relationship between viscosity and velocity and learn the relative viscosity of common household liquids. Time how long it takes for the marble to sink. If the experiment did not meet its goals, be sure to explain why. P2 - Practices digital signal processing are practices p1,p2,p3. Numerical investigations were conducted on the mixing efficiency of resonant acoustic mixing (RAM) technology using a high-viscosity mixture under vertically forced vibrations. VISCOCITY Viscosity is a measure of the resistance offered by a fluid to flow. us a better estimate of the viscosity. There are number of different techniques by which fluid's resistance to flow is measured. I would definitely recommend Study.com to my colleagues. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. Drop 3 42 1. Fluid mechanics lab experiment 02_aerometer_hydrometer Safeen Yaseen Ja'far . R = ..ohm, Which of the following forces are dissipative in nature. Ch09 - Chapter 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J. 1. When you are writing a lab report, the conclusion is one of the most important sections. We completed the Viscosity Experiment in class on March 18th. the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance and bearing size and lastlynis the number of results reached from the different bearing sizes. Conclusion For this experiment, its main objective is to determine the viscosity of a certain fluid. Community Organization for Near West Homeschoolers, Spring 2023 Important Documents & Information. Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, L.N.Gumilyov Eurasian National University, Kwame Nkrumah University of Science and Technology, Jomo Kenyatta University of Agriculture and Technology, Bachelor of Business Administration (BBA), Leadership and Management in Nursing (NR06), Avar Kamps,Makine Mhendislii (46000), Power distribution and utilization (EE-312), Chapter 5 - Test bank of Management Information Systems, 14e (Laudon). She has a Master's Degree in Cellular and Molecular Physiology from Tufts Medical School and a Master's of Teaching from Simmons College. Now, the radius (r) of ball can be calculated as ; r = d/2. The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . Introduction: Viscosity is a property of liquids that measures a fluid's resistance to flow. Compare your results of the measurement of the viscosity with the accepted values. The main purpose of a lab report is to demonstrate your understanding of the scientific method by performing and evaluating a hands-on lab experiment. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? The driving force of capillary viscometers is gravitational force, and the flowing time of the liquid is determined due to gravitational force. Finally, the conclusion should offer some suggestions for further research. The true density of water is 1000 kg/m3 . enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same In this lab, were going to conduct an experiment testing how temperature affects the viscosity of honey. Abstract. Drop Frames 240 /s Velocity[m/s] Lab Report regarding viscosity experiment. Discuss discrepancies and anomalies in your data. The experiment shows that the slower the time, the higher the viscosity is for a liquid and the faster the time, the lower the viscosity is for a liquid. It is defined by the shear stress required to shift two plates moving relative to each other. Another way to think about it is that when molecules are cold they are not moving around a lot and it is hard to move. Academia.edu uses cookies to personalize content, tailor ads and improve the user experience. Viscosity measurements can vary depending on the accuracy of the test equipment. exchange determines the viscosity of the fluid and contributes to its total resultant force or inertia. You're trying desperately to shake it, but to no avail. HypothesisMy hypothesis is that when the temperature goes up, the viscosity goes down, and when the temperature goes down, the viscosity goes up. P1 - Practices digital signal processing are practices p1,p2,p3. Viscosity is a measurement of a fluid's resistance to change or deformation, or more simply put, how thick it is. Which marbles sinkto the bottom of the jar quickly and which marbles sink to the bottle of the jar slowly. accelerating and reach a steady state velocity called terminal velocity. What a big difference! Its like a teacher waved a magic wand and did the work for me. . As 1. 3. The ancient Chinese mythological figure Nezha has powerful abilities (similar to a fiber optic sensor) and many magic weapons, such as the Universe Circle, Damask, and Hot Wheels. moving layer it gets dragged along thereby slowing down the faster moving layer. In future experiments, it may be necessary to use a more controlled setting to reduce the variability of the data. The main source of error for a lab like this is human error. Drop Frames 240 /s Velocity[m/s] Viscosity is a liquid's resistance to flowing. Because Viscosity changes with temperature and . Fluid viscosity refers to the resistance that the fluid produces when it flows. - 3 Cylindrical Containers with the same size containing: Glycerin, Motor Oil and Castor Oil Apparatus: EXPERIMENT TO DETERMINE THE VISCOSITY OF GLYCERINE. 2. Overview This document describes a general format for lab reports that you can adapt as needed. 10.6 Viscosity Test of Bitumen 10.6.1 Introduction Viscosity is reverse of fluidity. the following equation 10. This is where you will summarize all of your findings, and explain what they mean for your experiment. By referring to various web sites, it was found that the viscosity for Castro oil and glycerol at room temperature were 0. Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. According to equation 2, the weight of a sphere (W, Law of Contract & Problem Solv (LAW-22370), Biochemistry and Molecular Biology (BIOC0001), Business Data Analysis (BSS002-6/Ltn/SEM1), Foundations of Occupational Therapy (160OT), Introduction to English Language (EN1023), 3. The answer is a property of liquids called viscosity. Data measured and references values. Report Use the template provided to prepare your lab report for this experiment. Small 1 0. Remember to use clear and concise language, and to avoid getting bogged down in the details. Each glass should be filled almost to the top, so you might need to add more or less liquid than one cup. Small metallic . The density distribution was analyzed for a mixture of high-melting explosive (HMX) and trinitrotoluene (TNT). Ball bearings of various sizes were then dropped into Controlled Variables: Amount of liquid, mass of the object. Create an account to start this course today. Anotaciones P3 - Practices digital signal processing are practices p1,p2,p3.
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