A graph of the experimental friction factor was compared . Controlled Variables: Amount of liquid, mass of the object. 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. Low viscosity fluids flow easily (water, alcohol); High viscosity fluids pour slowly (molasses, cold honey, etc.). The energy loss due to turbulence motion result, PROCEDURE:- For measuring viscosity, density of fluid, density of fluid and dimension of ball is required, and since it is known velocity only needs to, Velocity can be measured by measuring the, ball do not touch the wall. When one variable gets bigger, the other gets smaller. Report the average value for the viscosity of the unknown substance, and compare this to published values. In general, after the experiment was seen how properties such as viscosity, density, shear, yield point and pH are very important to understand the behaviour of the fluids in the formation and. As Drop 3 51 1. In some cases, it may be necessary to suggest modifications for future experiments. Drop Frames 240 /s Velocity[m/s] 1.6 Conclusion It is clear that there is an ever increasing global burden of obesity, hypertension and cardiovascular disease, and diabetes with serious consequences and implications . Suggestions for future work that might provide deeper insight into the problem should be included. All other trademarks and copyrights are the property of their respective owners. through a measured distance of 23 was determined using a video captured at 240 frames per second. Accordingly, one possible justification for this problem could have been the liquid unknown type, which we assumed to be Castro. If you want to drain a $480 \mathrm{mL}$ shake in 2.0 minutes, what pressure difference is needed? shown in the equation below GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. Drop 2 135 0. We will include tips on formatting and structure, as well as how to effectively communicate your findings. Nguyen Quoc Trung. 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. Lab Report regarding viscosity experiment. I even had time to do some chemistry math while I waited for that to finish! Whereris the radius of ball bearings. Revised on July 15, 2022. The results indicated that although the viscosity was within an acceptable range of Worse yet, each professor wants something a little different. 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. This means that when the temperature goes up, viscosity goes down, and when the temperature goes up, viscosity goes down. ResearchGate has not been able to . 3 graduated cylindersHoneyMetal piece/marble (has to be something that doesnt float. The point of your lab report is not to merely confirm what you expect. Drop 1 43 1. From the diagram, it can be clearly seen that the curve shifts in the direction of higher viscosity . The conclusion should include a discussion of the implications of the data, as well as any errors that were made during the experiment. Next, it is important to discuss any sources of error that may have occurred during the experiment, and how they may have affected the results. The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . Log in out of 10 As the concentration of salt increased, the amount of light that was absorbed by the plant decreased. Have you ever experienced the frustration of trying to get ketchup out of the bottle? Hint: What is the experiment title? Drop Frames 240 /s Velocity[m/s] Become Premium to read the whole document. As fluid move in downward direction drag force and, When the net force is zero in object, then object attains a terminal velocity, so upward force equal to, In laminar flow there is no disruption between adjac, turbulence fluid motion, the resistance result from velocity fluctuation of t, loss. An adult had to help with the stove/ heating. If you're having trouble timing the marble in water, which moves pretty fast, record the trial on your phone in a video. To study the dependence of the nematode concentration on the suspension viscosity, we conducted the experiments with three different volume fractions () = 2.26%, 4.52%, and 9.04% keeping all the other parameters constant as shown in Fig. Ch09 - Chapter 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J. The rate of this momentum University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? How much did you enjoy doing the experiment? Drop 2 42 1. Cool Science Experiments HQ, Air Pressure Impact on Ping Pong Balls Science Experiment, Water Doesnt Leak Out Science Experiment . Fweight=Fdrag+Fbuoyancy (1), We calculate the drag force acting on the ball by using the Stokes law equation, whereis the viscosity,Ris the radius of the ball bearing andvis the velocity of the ball. to deformation, can be understood by looking at two layers of the same fluid traveling at different speeds and Assignment Viscosity Experiment & Lab Report. 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. Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). Motor oil 05%, For result analysis and evaluation we calculated the average Reynolds number for each fluid with the enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same . somewhat optimistic one. The Physics Practicals For Class 12 CBSE is given here so that students can understand the experiments in a better way.experiment, we include viscosity and attempt to verify Poiseuille's . Carefully drop one marble into each jar. 2. the following equation Having deter- If the friction is high, it's going to slow down the marble and it will take more time for it to reach the bottom, meaning it's moving with a smaller velocity. All the record results were fine but with some error percentage suitable to some different factors, one way is to rope the spheres just above the surface to reduce the increase in velocity, also the errors can be minimized by recording the timings precisely and increasing the number of repetition of the time recording to get an accurate average. Drop one marble at a time and observe what happens to the marble when it enters the liquid. Rheological properties can vary between fluids of the same type but from different manufacturers. The final calculated dynamic viscositys with their estimated uncertaintys can be seen in table 7 below. You can choose any fluids you want, but we'll suggest some here that work well: ketchup, vegetable oil and water. Drop 3 42 1. Small 2 0 7728. Lab results and process calculations show that low-pressure, low-energy solvent-based in situ processes have considerable technical and economic potential for upgrading and recovery of bitumen and heavy oil. Honey sure has high viscosity! 2. 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). Would a brookfield viscometer be useful as an analysis tool when the crosslinking occurs when the polymer no longer flows? The density distribution was analyzed for a mixture of high-melting explosive (HMX) and trinitrotoluene (TNT). Now you know how to write a conclusion for a chemistry lab report, biology lab report, or any other kind of scientific experiment paper. Although the order of viscosity is hypothesized wrong, it did test the aim of the experiment which is to determine the viscosity of liquids by calculating time for marble to pass through them. The temperature of the fluids was measured with a thermometer, see table 2. To unlock this lesson you must be a Study.com Member. It is a measure of the resistance to flow. Create your account. 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 . Stress is a measure of the average amount of force exerted per unit . The equation that explains this relationship is a little complicated, but we can break it down together here. Hint: What is the experiment title? 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. Data measured and Drop Frames 240 /s Velocity[m/s] The diameter of each ball bearing was also measured using a pair of vernier callipers. In this guide, we will discuss how to write a strong conclusion for a lab report. Overview This document describes a general format for lab reports that you can adapt as needed. In our case, to determine the viscosity of the different fluids, first we need to assume that the flow is laminate Cooking Oil (enough to fill one jar) We used Vegetable Oil, but any Cooking Oil will work. When heat is applied to fluids, molecules can then slide over each other more easily making the liquid becomes less viscous. 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. Drop Frames 240 /s Velocity[m/s] Repeat step 2 for the remaining liquids. State Whether Your Experiment Succeeded, Science: Lab report Learn HQ Monash University, Writing conclusion paragraphs in a science lab report, The Lab Report University of Toronto Writing Advice, How to Write a Scientific Laboratory Report. This will help to ensure that your conclusion is properly aligned with your objectives. A unique property of liquids is something called viscosity. Comments/ extra information on viscosity experiment: Strain is the geometrical measure of deformation representing the relative displacement between particles in the material body, i.e.
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