R = ..ohm, Which of the following forces are dissipative in nature. Thick liquid is said to be more viscous than a thin liquid of the road Filtration time was 1.5 h for the SGO membrane, whereas 48 h were required for the GONS membrane due to higher viscosity. The antibody sequence is a key determinant for high viscosity of highly concentrated solutions; therefore, a sequence- or structure-based tool that can identify highly viscous antibodies from . in table 1. Why do different fluids move at different rates? 124 lessons. Then slow it down to count the seconds it took for the marble to fall. 10.6 Viscosity Test of Bitumen 10.6.1 Introduction Viscosity is reverse of fluidity. 3. We'll not send How much did you enjoy doing the experiment? and the procedure is described in Section4. Method1. Given this we are able to determine the How Does the Consistency of a Liquid Impact Magnetic Attraction, Color Changing Walking Water Science Experiment. - 1 Thermometer The distance at which the sphere was dropped from, could have affected the terminal velocity. Temperature in Farenheight Time in secs Cold 28.20 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. 4 clear glass jars of the same size (we used pint sized mason jars). Describe the relationship between viscosity and crosslinking? moving layer it gets dragged along thereby slowing down the faster moving layer. Place a meter scale vertically beside the jar. The answer is a property of liquids called viscosity. Considering the fact that the Reynold numbers were consistently above one, perhaps we Medium Final viscosity[Pas] During the experiment the relationship between the drop distance of the balloon and the time taken to travel that distance were investigated. Content may be subject to copyright. From the diagram, it can be clearly seen that the curve shifts in the direction of higher viscosity . Sphere Average Speed[m/s] Standard deviation University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? The simplest case refers to a lubrication model and is represented by the ow of a non-Newtonian power-law uid between two smooth parallel plates Our body senses molecules jumping around a lot as heat. What Melts Ice Fastest? Lets get started! 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. 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 . In this experiment, you're going to learn about viscosity. Medium 0 0. . The viscosity of a fluid describes its resistance to movement or deformation, an easy way of conceptualizing Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). Report. We completed the Viscosity Experiment in class on March 18th. Report the average value for the viscosity of the unknown substance, and compare this to published 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. This supports the hypothesis that salt can inhibit the process of photosynthesis. the Motor oil. Calculate the slope of these graphs, using the equation of . The data suggest that high concentrations of salt can inhibit the process of photosynthesis, which has important implications for the agriculture industry. 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 most fluids obeys simple laws which can be expressed by mathematical equations. Cool Science Experiments HQ, Air Pressure Impact on Ping Pong Balls Science Experiment, Water Doesnt Leak Out Science Experiment . The results indicated that although the viscosity was within an acceptable range of Drop 3 42 1. Viscosity is the measure of the internal friction in a liquid or the resistance to a flow. Conclusion for experiment diversity of bacteria. applying the appropriate equations the viscosity of the fluid was determined. Use the template provided to prepare your lab report for this experiment. It is a measure of the resistance to flow. The ice has less friction, so the box will slide further. For example, if you used a spectrophotometer to measure the amount of light that was absorbed by a plant, you would want to mention this in your conclusion. Various drop heights, as well as trials, were utilized to obtain validity for the experiment. All liquids have viscosity, so if the marble in water is moving too fast, try a liquid that's a little thicker, like dish soap. This means that when the temperature goes up, viscosity goes down, and when the temperature goes up, viscosity goes down. I even had time to do some chemistry math while I waited for that to finish! 1. Conclusion For this experiment, its main objective is to determine the viscosity of a certain fluid. The purpose of this experiment was to find the viscosity of three different fluids, glycerin, castor oil and motor Below is an example of how to write a conclusion for a lab report on photosynthesis. By doing a reverse engineering calculation using the equation given in the lab sheet for Castro oil (0. Abstract. This should be based on the data that was collected and should be backed up by your discussion of the findings. the ball bearing reaches its terminal velocity, the forces acting on the ball will have reached equilibrium, as Using the measurements and Make sure that your findings are easy to understand, and avoid using scientific jargon unless it is necessary. 0. (3) A voltmeter (0 - 1.5V) Ball bearings of various sizes were then dropped into Drop 3 51 1. In your chart, the substances that took the marble the longest to migrate through had the biggest viscosity. Briefly describe the main findings of your experiment and discuss how they answer your research question or support your hypothesis. This suggests there is a factor in the measurements or premise thats causing a systematic Viscosity is a measurement of a fluid's resistance to change or deformation, or more simply put, how thick it is. Conclusion: buoyancy is given by the following equation, Wherefluidis the density of the fluid,Vis the volume of the sphere andgis the gravitational acceleration. 4 clear glass jars of the same size (we used pint-sized mason jars). The higher the relative velocity v of the plates and the smaller the distance y between the plates, the greater the shear stress. 10. Drop 1 134 0. Hint: What is the experiment title? Results are discussed in Section5and the conclusions are drawn in Section6. Suggestions for future work that might provide deeper insight into the problem should be included. If you're having trouble timing the marble in water, which moves pretty fast, record the trial on your phone in a video. 2. 65 NSA/AMA ), it appeared that the time needed to get this viscosity could reach about 12 seconds. Drop 1 43 1. A lab report should include a conclusion that analyzes the final data. Viscosity of vegetable oil in the range of engine oil, Antimicrobial Activity of Thyme (Thymus vulgaris) Essential Oil Against Listeria monocytogenes Scott A (page 151), The Food Chemistry Laboratory: A Manual for Experimental Foods, Dietetics and Food Scientists, Second Edition, 9076Emulsions Foams and Suspensions - Fundamentals and Applications, MECHANICAL PROPERTIES OF FLUIDS 10.1 INTRODUCTION, Introduction to Fluid Mechanics, Fourth Edition, PUMPS AND MOTORS CONTINUING EDUCATION PROFESSIONAL DEVELOPMENT COURSE, Title: Design of Diesel reactor heated by steam boiler using jatropha cake as a fuel, MEASUREMENT OF VISCOSITY OF LIQUIDS BY THE STOKE'S METHOD, Chemical Engineering Fluid Mechanics (2016), VALVES AND FITTINGS CONTINUING EDUCATION PROFESSIONAL DEVELOPMENT COURSE. Drop 2 42 1. We will include tips on formatting and structure, as well as how to effectively communicate your findings. Solid densities: from about 0. Viscosity is a fluids internal resistance to flow under stress. Sorry, preview is currently unavailable. Temperature in Farenheight Time in secsCold 28.20 2246.80Room Temp 72.70 336.51Hot 208.00 1.43. forces acting on the ball bearing and calculate the viscositys of the fluids by applying Stokes law. As the last treatment, the filtered membranes were dried in an oven model G-2100 (F.LLI GALLI G. & P. snc, Pieve Emanuele, MI, Italy) at 40 C for 2 h to complete the self-assembly by evaporating residual water. First, we poured the honey into another graduated cylinder and take out the metal piece. Large 8 1 7258. Plot the data for the calibration run and report the value of C. Be sure to include the point (W/,) = (0,0) to verify that the t is reasonable. Log in out of 10 There are number of different techniques by which fluid's resistance to flow is measured. 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The driving force of capillary viscometers is gravitational force, and the flowing time of the liquid is determined due to gravitational force. can attribute a part of this systematic error to turbulence and the increased drag thereof, especially so in the to deformation, can be understood by looking at two layers of the same fluid traveling at different speeds and following formula. Viscosity is a measure of resistance to flow of fluid at a specified temperature. The first step is to restate the goals of the experiment. P1 - Practices digital signal processing are practices p1,p2,p3. Applying equation (1) and solving forwe can calculate the viscosity. Theory We consider the schematic in Figure1. To learn more, view ourPrivacy Policy. but to report on the actual results. In everyday terms (and for fluids only), viscosity is "thickness". - 1 Stopwatch/Video Recorder The experiment records and activities consist of 6 marks, the project has 3 marks and viva on the experiment consist of 5 marks. Drop Frames 240 /s Velocity[m/s] This experiment was successful in answering the research question posed at the beginning of the lab report. MEASURING VISCOSITY OF DIFFERENT FLUIDS USING BALL DROP METHOD. 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. oil. Practical investigation into Viscosity in liquids (Stokes Law). Drop 3 133 0. The lower the viscosity of a liquid, the thinner the liquid is and the less resistance it experiences. 3. whereWrandomis the random uncertainty,Sris the standard deviation of calculated viscositys for each liquid P2 - Practices digital signal processing are practices p1,p2,p3. 35 Easy Science Experiments You Can Do Today! Academia.edu no longer supports Internet Explorer. 4. Small 1 0. case of the Motor oil. INTRODUCTION The capillary viscometers are very simple, inexpensive and used to measure the viscosity of liquids. Low viscosity fluids flow easily (water, alcohol); High viscosity fluids pour slowly (molasses, cold honey, etc.). The final step in concluding a lab report is to state whether the experiment was successful or not. Regardless, the results for the fluids viscosity are consistently above the Having deter- A milkshake has a viscosity of $0.50 \mathrm{Pa} \cdot$ s. To drink this shake through a straw of diameter $0.56 \mathrm{cm}$ and length $22 \mathrm{cm},$ you need to reduce the pressure at the top of the straw to less than atmospheric pressure. @2019 - All Right Reserved. Lab Report regarding viscosity experiment. References The time taken to travel between two marks on the beaker was recorded. Medium Re it is not safe to arrive at conclusions due to the high reactivity of the compounds at the concentrations used in the . Accordingly, one possible justification for this problem could have been the liquid unknown type, which we assumed to be Castro. Fluids with high viscosity act the opposite; they are thick and it is hard for objects to move through them. We reviewed their content and use your feedback to keep the quality high. If a substance has a high viscosity, there's a lot of resistance, or friction, in the fluid. The answer is a property of liquids called viscosity. enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same and bearing size and lastlynis the number of results reached from the different bearing sizes. For example, if your research question was How does the concentration of salt affect the rate of photosynthesis?, you would want to make sure that you mention this question in your conclusion. - 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 The free Holy moly! Which marbles sinkto the bottom of the jar quickly and which marbles sink to the bottle of the jar slowly. (2) By Experiment By using our site, you agree to our collection of information through the use of cookies. Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiment's Goals. 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