But, when you spill your water, it goes everywhere. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? 3. spam or irrelevant messages, We use cookies to give you the best experience possible. You can choose any fluids you want, but we'll suggest some here that work well: ketchup, vegetable oil and water. The answer is a property of liquids called viscosity. Which liquid do you think the marble will fall fastest in? Conclusion: LAB REPORT HYDRAULIC POLITEKNIK : SEMESTER 4 : PROPERTIES OF FLUID. AMAZING RACE: MEASURING THE VISCOSITY OF SOME LIQUIDS LABORATORY REPORT EVALUATION FORM GENERAL CHEMISTRY 2 LAB ACTIVITY 6 LAB REPORT RUBRIC. - 1 Scale (1 decimal) The results can be seen in table 8, uncertainty is When you are writing a lab report, the conclusion is one of the most important sections. Report. The time taken to travel between two marks on the beaker was recorded. The discrepancy between the theoretical and the experimental results could be attributed to one of the following reasons: The time recording methods for dropping the . This is why it is perfectly acceptable to reject the hypothesis. and the procedure is described in Section4. The free EXPERIMENT TO DETERMINE THE VISCOSITY OF GLYCERINE. Describe the relationship between viscosity and crosslinking? following formula. Small metallic . Abstract. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. the ball bearing reaches its terminal velocity, the forces acting on the ball will have reached equilibrium, as Two experiments (8 + 8 marks) are asked from each section in the practical exam. Ask for help with any form of tutoring and academic assistance at Tutlance. calculated can be found in the tables bellow. Castor oil 1. Apparatus: Bacteria Lab Report. Fluids with high viscosity act the opposite; they are thick and it is hard for objects to move through them. 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. Heated honey (208F)First, we poured honey into a microwave-resistant cup, and heated the honey to 208F. Viscosity is a liquid's resistance to flowing. Drop 2 147 0. the bearing andvis the kinematic viscosity of the fluids. Content uploaded by Bilal Ahmad. Clean the glass jar and fill it with the viscous fluid. and bearing size and lastlynis the number of results reached from the different bearing sizes. 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. Widely, it is used for measuring the viscosity of Newtonian fluids. 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. 999 kg/m 3 , we find that we The density distribution was analyzed for a mixture of high-melting explosive (HMX) and trinitrotoluene (TNT). (3) A voltmeter (0 - 1.5V) to deformation, can be understood by looking at two layers of the same fluid traveling at different speeds and Drop Frames 240 /s Velocity[m/s] Motor oil 05%, For result analysis and evaluation we calculated the average Reynolds number for each fluid with the Below is an example of how to write a conclusion for a lab report on photosynthesis. shown in the equation below Small 0 0. REQUIREMENTS: 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 13. Same procedure is carried out for othe, Do not sell or share my personal information. Report 1. 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. Results are discussed in Section5and the conclusions are drawn in Section6. 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. oil. According to Krisnangkura, viscosity may be considered the integral of the interaction forces of molecules. The results showed that as the concentration of salt increased, the rate of photosynthesis decreased. Report, Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. Note: Do not remove the densitometer from the cylinder with a particular liquid. Was your prediction correct? Drop Frames 240 /s Velocity[m/s] Your email address will not be published. Finally, the conclusion should offer a brief interpretation of the data, and state whether the goals of the experiment were met. Drop 3 51 1. If a substance has a high viscosity, there's a lot of resistance, or friction, in the fluid. Viscosity describes the internal resistance to flow of a fluid (internal friction). Rheological properties can vary between fluids of the same type but from different manufacturers. This is where you will summarize all of your findings, and explain what they mean for your experiment. A factor closely associated with renal disease status in clinical diagnosis is abnormal human serum albumin (HSA) concentration levels in human body fluids urine, serum, etc. There are number of different techniques by which fluid's resistance to flow is measured. 0. Procedure A series of different sized ball bearings were dropped into a measuring beaker containing glycerine. Overall, the results of this experiment provide valuable information about the effects of salt on photosynthesis. The answer is a property of liquids called viscosity. 124 lessons. Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. The random uncertainty is calculated with Viscosity measurements can vary depending on the accuracy of the test equipment. Viscosity Of Water Lab Report. Experts are tested by Chegg as specialists in their subject area. The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . Which marbles sinkto the bottom of the jar quickly and which marbles sink to the bottle of the jar slowly. Drop 2 135 0. The pressure drop across the pipes was recorded to find both the friction factors and Reynolds numbers. Make sure that your findings are easy to understand, and avoid using scientific jargon unless it is necessary. Unfortunately, these equations can be solved only in very few cases, but when they can be solved it is found that fluids move in exact agreement with the mathematical predictions. 13 chapters | this is to look at the flow of water versus the flow of syrup. 1. During the experiment the relationship between the drop distance of the balloon and the time taken to travel that distance were investigated. Summarize the findings. Drop 3 133 0. Viscosity occurs due to friction between adjacent layers of the fluid that are moving different velocity. Lab Report: Water and Ice Does ice have more or less volume than water. In this experiment, you're going to learn about viscosity. 794 %. Ball bearings of various sizes were then dropped into the fluid that are moving different velocity. 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. - 1 Stopwatch/Video Recorder Applying equation (1) and solving forwe can calculate the viscosity. This type of assignment is usually shorter than a research paper. The experiment records and activities consist of 6 marks, the project has 3 marks and viva on the experiment consist of 5 marks. 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. =mV (5), Wheremis the mass andVis the volume of the ball bearings. Obviously the syrup will flow slower than the water in I had to wait 37 minutes, 26.8s (2246.8s) for the metal piece to reach the bottom! Enrolling in a course lets you earn progress by passing quizzes and exams. Drop 1 146 0. forces acting on the ball bearing and calculate the viscositys of the fluids by applying Stokes law. Drop 3 146 0. A fluid can be a gas or a liquid, and it is easy to see that liquids are thicker than gases, and therefore have higher viscosities. An adult had to help with the stove/ heating. In a lab flow test using Athabasca tar sand and propane as solvent, 50 percent of the bitumen was recovered as upgraded oil. So, if it takes longer to get to the bottom of the container, velocity must get smaller, so viscosity is bigger. Practical investigation into Viscosity in liquids (Stokes Law). - 1 Thermometer Thats nearly half an hour! This is a Premium document. Drop 3 220 0. Report. 35 Easy Science Experiments You Can Do Today! but to report on the actual results. Become Premium to read the whole document. Low viscosity fluids flow easily (water, alcohol); High viscosity fluids pour slowly (molasses, cold honey, etc.). 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. The actual density of steel is equal to 7800 kg/m 3 , when compared to Stress is a measure of the average amount of force exerted per unit . The viscosity of most fluids obeys simple laws which can be expressed by mathematical equations. 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). Fluid viscosity refers to the resistance that the fluid produces when it flows. Compare your results of the measurement of the viscosity with the accepted values. Large 1 0. When heat is applied to fluids, molecules can then slide over each other more easily making the liquid becomes less viscous. 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? Sphere Average Speed[m/s] Standard deviation Temperature in Farenheight Time in secs Cold 28.20 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. 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 1 52 1. Glycerin 110% I would definitely recommend Study.com to my colleagues. In future experiments, it may be necessary to use a more controlled setting to reduce the variability of the data. All rights reserved. 10.6 Viscosity Test of Bitumen 10.6.1 Introduction Viscosity is reverse of fluidity. Controlled Variables: Amount of liquid, mass of the object. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 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Room Temperature (72.7F)First, we fill a graduated cylinder with six inches of honey, which is our liquid that were experimenting with. Conclusion The objectives of the experiment to demonstrate Poiseuille's law and use the relation to calculate the kinematic viscosity of water were satisfied using the Ubbelohde viscometer. Conclusion. enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same It is defined by the shear stress required to shift two plates moving relative to each other. Wrandom=Srn (8). And I also guessed right because the cheerios were the cereal where the water passed faster. Castor Oil 22. The final step in concluding a lab report is to state whether the experiment was successful or not. Large 0 0. This was quite impossible in our experiment to be obtained. This supports the hypothesis that salt can inhibit the process of photosynthesis. 10. State Whether Your Experiment Succeeded. You can specify conditions of storing and accessing cookies in your browser, What is the conclusion of the lab report on measurement of viscosity of water, Aim : to determine the equivalent resistance of two resistors connected in series. Results Here is a table of the data we collected in this experiment. Higher the viscosity of liquid bitumen, the more nearly it approaches a semi-solid state in consistency. Although the viscosity was within an "acceptable" range of what was expected, the Reynold numbers suggest INTRODUCTION The capillary viscometers are very simple, inexpensive and used to measure the viscosity of liquids. Table 1: Sphere Measurements and Calculated Density. The point of your lab report is not to merely confirm what you expect. Report Use the template provided to prepare your lab report for this experiment. Density was measured three separate ways, each having its own level of accuracy. the frictional shear forces between them. The Content may be subject to copyright. 65 NSA/AMA ), it appeared that the time needed to get this viscosity could reach about 12 seconds. The flow of a liquid depends on the Reynolds number as depicted in the equation below; For example, honey is more viscous than water. We completed the Viscosity Experiment in class on March 18th. Conclusion for experiment diversity of bacteria. error in our results. Drop 3 42 1. Motor oil 30. Basically, they have an inverse relationship. Measure the inner diameter of the jar using a vernier calipers. Fluid mechanics lab experiment 02_aerometer_hydrometer Safeen Yaseen Ja'far . are off by 2. This site is using cookies under cookie policy . 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. Our body senses molecules jumping around a lot as heat. 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 . acting on the sphere but the sum of all the forces will be zero. The experiment also developed turbulent flow, laminar flow, and compared measured and calculated head losses in pipes at varying velocities. Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. Holy moly! Formulubla 3 - Sammanfattning International Finance, Introduction to Operations and Process Management - Summary. case of the Motor oil. Medium Re Because Viscosity changes with temperature and . GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. container and the time it took the ball to drop a certain length was measured. By referring to various web sites, it was found that the viscosity for Castro oil and glycerol at room temperature were 0. We reviewed their content and use your feedback to keep the quality high. University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? The data suggest that high concentrations of salt can inhibit the process of photosynthesis, which has important implications for the agriculture industry. 4 clear glass jars of the same size (we used pint sized mason jars). 10. Theory We consider the schematic in Figure1. meaning that the ball bearing does not create turbulence in its wake. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. Drop 1 43 1. Numerical investigations were conducted on the mixing efficiency of resonant acoustic mixing (RAM) technology using a high-viscosity mixture under vertically forced vibrations. Drop one marble at a time and observe what happens to the marble when it enters the liquid. Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. 2. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) Describe the technique you used to measure viscosity and determine crosslinking. 005 gandmis the weight of each individual bearing size. Method1. Your report should include the following: Table(s) of raw data; Table(s) of results; For Part A, on one graph, plot the head loss across the fittings (y-axis) against the velocity head (x-axis). The viscosity of the liquid is represented by the symbol eta. The purpose of this experiment was to find the viscosity of three different fluids, glycerin, castor oil and motor Small 1 0. calculated and analyzed. Drop Frames 240 /s Velocity[m/s] Writing a conclusion for a lab report can be tricky, but if you follow these five steps, you should be able to write a conclusion that is clear, concise, and effectively communicates the findings of your experiment. MEASURING VISCOSITY OF DIFFERENT FLUIDS USING BALL DROP METHOD. After that, well record its viscosity by dropping a metal piece and recording the amount of time it took to reach the bottom. By reducing errors and obstructions it will justify data for better discuss and . 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. 4 clear glass jars of the same size (we used pint-sized mason jars). Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiment's Goals. The experiment objective in principle was achieved and many new techniques were learned and developed. DOCX, PDF, TXT or read online from Scribd, 100% found this document useful (5 votes), 100% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful. R = ..ohm, Which of the following forces are dissipative in nature. Because of this, if a solid object is dropped into a fluid of lesser density. Revised on July 15, 2022. that the premise and assumption of laminar flow was a somewhat optimistic one, especially so in the case of When you are writing the conclusion, it is important to revisit these goals and summarize how well they were met. The conclusion should include a discussion of the implications of the data, as well as any errors that were made during the experiment. Then slow it down to count the seconds it took for the marble to fall. Academia.edu no longer supports Internet Explorer. What a big difference! 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. Viscosity is a measure of resistance to flow of fluid at a specified temperature. Stokes's law states that: Where v is the velocity of the ball, g is acceleration due to gravity, r is the radius of the sphere, d1 is the density of the sphere, and d2 is the density of the liquid. It took 5m, 36.51s (336.51 s) to fall to the bottom! Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. 2 g/cm3 to 20 g/cm3. (1) By calculations What was the conclusion of the experiment? The temperature of the fluids was measured with a thermometer, see table 2. 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. By using our site, you agree to our collection of information through the use of cookies. If you want to drain a $480 \mathrm{mL}$ shake in 2.0 minutes, what pressure difference is needed? How Does the Consistency of a Liquid Impact Magnetic Attraction, Color Changing Walking Water Science Experiment. Include and Analyze Final Data. From the pressure diagrams, it was concluded that there was a high-pressure gradient at the leading edge and decreased through the aerofoil. Is there another way you could measure viscosity or crosslinking? Worse yet, each professor wants something a little different. The measured viscosity of water matched the theoretical value. 5 g/ml to 3-4 g/ml. The true density of water is 1000 kg/m3 . The first step is to restate the goals of the experiment. You're trying desperately to shake it, but to no avail. 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. Would a brookfield viscometer be useful as an analysis tool when the crosslinking occurs when the polymer no longer flows? Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). 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. tis the inaccuracy of the time measurement exchange determines the viscosity of the fluid and contributes to its total resultant force or inertia. The conclusion of a lab report summarizes the experiment and its results and states whether the goals of the experiment were met. Table 8: Mean Reynold Numbers from final results. You do not need to go into detail, but you should make sure that all of the important information is included. Enter the email address you signed up with and we'll email you a reset link. somewhat optimistic one. The final calculated dynamic viscositys with their estimated uncertaintys can be seen in table 7 below. assumed to be the same as that of the viscosity. Why do different fluids move at different rates? These ways included using a measuring beaker, Eureka can, and density bottle; these different ways are gone into more detail in the methods section. Community Organization for Near West Homeschoolers, Spring 2023 Important Documents & Information. Use the template provided to prepare your lab report for this experiment. It is a measure of the resistance to flow. 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. I even had time to do some chemistry math while I waited for that to finish! Hint: What is the experiment title? Viscosity is a measurement of a fluid's resistance to change or deformation, or more simply put, how thick it is. 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. Small 2 0 7728. Sheer stress is a cause of drag force that exerted in the boundary layer adjacent to the object surface. Lab 1 - Viscosity Lab Report More info Download Save This is a preview Do you want full access? Drop Frames 240 /s Velocity[m/s] Drop 3 42 1. Microscope Lab Report Conclusion Questions: . The rate of this momentum . Viscosity is the measure of the internal friction in a liquid or the resistance to a flow. What was the conclusion of the experiment? Students also viewed 4.1 - Efnislegar eignir Prentform MAVI Spurningar 1 Exam 11 December 2012, questions Cooking Oil (enough to fill one jar) We used Vegetable Oil, but any Cooking Oil will work. (2) By Experiment )FreezerOvenOven-resistant cupStopwatchMeasuring tape. what was expected, the Reynolds number suggests that the premise and assumption of laminar flow was a How much did you enjoy doing the experiment? Students looking for free, top-notch essay and term paper samples on various topics. Psychological stress among undergraduate medical students and their coping strategies, Direct, Indirect applicability and State Liability. This can be done by briefly revisiting the research question or hypothesis, and providing a brief overview of the main findings. Discuss discrepancies and anomalies in your data. Medium Final viscosity[Pas] Remember to use clear and concise language, and to avoid getting bogged down in the details. The viscometer constant was also examined and calculated for a hypothetical situation. the following equation The force of the The distance at which the sphere was dropped from, could have affected the terminal velocity. Thick liquid is said to be more viscous than a thin liquid of the road Author content. Assignment Viscosity Experiment & Lab Report. By continuing well assume youre on board with our cookie policy, Dont waste Your Time Searching For a Sample, Two Factors Affect The Viscosity Of Magma, Reaction Of Alkali Metals With Water Lab Report, Coping With Water Scarcity, Poor Water Quality and Inadequate Sanitation, CH 456: Determination of Water Hardness of Filtered and Unfiltered Water, ASK writer for Drop 2 42 1. 65 and 1. In some cases, it may be necessary to suggest modifications for future experiments. Discuss the methods used. 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. through the fluid, exerting a shear force on the fluid surrounding it. Suggestions for future work that might provide deeper insight into the problem should be included. 2003-2023 Chegg Inc. All rights reserved. Obviously this is not the case Fi; g. I. under ordinary conditions of measurement, but as a result of experiments by Poiseuille, it is generally assumed that a pressure po may be employed For example, if you were testing the effects of different concentrations of salt on photosynthesis, you would want to mention that the results showed a decrease in photosynthesis as the concentration of salt increased. In everyday terms (and for fluids only), viscosity is "thickness". spheres of a known mass and density into an oil. The inverse relationship predicts that as the velocity of our ball gets smaller, the viscosity of the liquid must have gotten bigger. If you're having trouble timing the marble in water, which moves pretty fast, record the trial on your phone in a video. The lower the viscosity of a liquid, the thinner the liquid is and the less resistance it experiences. Topic: The effect of salt concentration on the rate of photosynthesis. Medium 7 1 7758. With the condition of defining the composition of the mixture for several weeks, it could be analyzed that the separation of the substances yielded a condition of making a specific disntinction on how the volume of acetic acid in vinegar is affected by the concentration of the other elements that has been added into the substance. The surface stress biosensor was developed as a new type of biosensor to detect protein molecule concentration and has a wide range of clinical applications. Before you start, make a prediction. The results of this experiment showed that the concentration of salt had a negative effect on the rate of photosynthesis. 2. Liquid densities: from about 0. Considering the fact that the Reynold numbers were consistently above one, perhaps we Finished completely. If the experiment did not meet its goals, be sure to explain why. Re =viscous forcesinertial forces =u 0 L (10) - Science Experiment, Psychological Research & Experimental Design, All Teacher Certification Test Prep Courses, Homemade Ice Cream in a Bag Science Experiment, High School Biology: Homework Help Resource, Environmental Science 101: Environment and Humanity, Prentice Hall Biology: Online Textbook Help, Middle School Physical Science: Help and Review, Middle School Physical Science: Tutoring Solution, Human Anatomy & Physiology: Help and Review, Distribution of Plants & Animals Around the World, Landforms, Climates & Ecosystems of the Earth: Patterns & Characteristics, What is Lichen Planus? the Motor oil. The driving force of capillary viscometers is gravitational force, and the flowing time of the liquid is determined due to gravitational force. mined both the random uncertainty and the systematic deviation were able analyse the propagation of error Of course, some liquids are more viscous than others. Whereris the radius of ball bearings. Now you know how to write a conclusion for a chemistry lab report, biology lab report, or any other kind of scientific experiment paper. P1 - Practices digital signal processing are practices p1,p2,p3. Restate the Experiment's Goals. R= R1 + R2 =ohm+.ohm=..ohm 10. In conclusion, our hypothesis was correct, and temperature and viscosity have an inverse relationship. Repeat step 2 for the remaining liquids. This will help to ensure that readers understand how the data was collected and can evaluate its reliability. Medium 0 0. Then, we cool the honey down by putting it into the freezer. Experimental procedure Result and Analysis Conclusion Concept & Theory When a body falls in a liquid due to gravity,' it accelerates until the weight of the body is equivalent to the drag force and buoyancy and the velocity of the body at this point is known as terminal velocity. Viscosity is a fluids internal resistance to flow under stress. In everyday terms (and for fluids only), viscosity is "thickness". (2019, Nov 27). - Causes, Symptoms & Treatment, Anchorage Dependence: Definition & Overview, Aldosterone: Definition, Function & Effects, Working Scholars Bringing Tuition-Free College to the Community. Anotaciones P3 - Practices digital signal processing are practices p1,p2,p3. in table 1. Now, the radius (r) of ball can be calculated as ; r = d/2. Find the diameter (d) of the ball using the screw gauge. The density of the ball bearings were calculated with the following formulas 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. Nguyen Quoc Trung. 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 did you know. Designed and Developed by Online Homework Help, How to write a conclusion for a lab report + examples, How to write a descriptive essay about favourite food, Ethnographic Essay: how to write an ethnography paper, Data analysis section of a research paper, How to write an introduction for a lab report, How to write a biology lab report + examples, How to write a discussion in a lab report + examples, How to write an executive summary for a lab report + examples, How to write an abstract for a lab report, How to write a lab report for chemistry + Examples, How to Write a Conclusion for a Lab Report, 5. ResultsHere is a table of the data we collected in this experiment. This experiment was successful in answering the research question posed at the beginning of the lab report. - 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 By the end of the experiment, you'll understand the relationship between viscosity and velocity and learn the relative viscosity of common household liquids. The main source of error for a lab like this is human error. She has a Master's Degree in Cellular and Molecular Physiology from Tufts Medical School and a Master's of Teaching from Simmons College. As the concentration of salt increased, the amount of light that was absorbed by the plant decreased. Having deter- Sir George Stokes was a British scientist that discovered the relationship between viscosity and velocity of a sphere in a liquid in 1851. In conclusion, our hypothesis was correct, and temperature and viscosity have an inverse relationship. References Lab Report regarding viscosity experiment. It is a measure of a fluid's resistance to flow. A moody diagram was plotted comparing the friction factor versus the Reynolds number. Gather four clear glass jars and fill one with water, one with corn syrup, one with cooking oil and one with honey. 4. (1) Two resistors of unknown resistances The greater the. 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. Discuss your results, focusing on the following: However, further sensitivity improvement is required to achieve . the resistance to an externally applied shear stress. Gas densities: mostly in the range of a few grams per liter. 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. 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. 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. You can also try other liquids. 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. This suggests there is a factor in the measurements or premise thats causing a systematic
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