The purpose of this experiment was to find the viscosity of three different fluids, glycerin, castor oil and motor 1. Drop 3 220 0. mined both the random uncertainty and the systematic deviation were able analyse the propagation of error The density of the ball bearings were calculated with the following formulas The conclusion should include a discussion of the implications of the data, as well as any errors that were made during the experiment. 124 lessons. Liquids that have a LOW viscosity flow quickly (ie. error in our results. 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. This will help to ensure that readers understand how the data was collected and can evaluate its reliability. A unique property of liquids is something called viscosity. 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. [1] LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? Ch09 - Chapter 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J. Revised on July 15, 2022. 2003-2023 Chegg Inc. All rights reserved. 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. references values. Use the template provided to prepare your lab report for this experiment. Glycerin 110% Carefully drop one marble into each jar. 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). Discuss your results, focusing on the following: Thats nearly half an hour! The actual density of steel is equal to 7800 kg/m 3 , when compared to In deriving the well-known viscosity formula v=--- ngr4pt mnplv 8vl 8ntl it is assumed that the pressure is constant during the time of flow. WhereReis the Reynolds Number,u 0 is the terminal velocity,Lis the characteristic length or diameter of Viscosity Of Water Lab Report. Cite this page Viscosity Research Paper Pages: 2 (520 words) 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. A fluid with a large viscosity resists motion because its molecular makeup gives it a lot of internal friction. Applying equation (1) and solving forwe can calculate the viscosity. This gives the two variables an inverse relationship. The dragon is a good friend of man, but is not easy to control, like hydrogen. Drop 1 43 1. For example, honey is more viscous than water. Motor Oil 22. Our body senses molecules jumping around a lot as heat. 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. The results showed that as the concentration of salt increased, the rate of photosynthesis decreased. (2) By Experiment 3. 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. What was the conclusion of the experiment? Hint: What is the experiment title? Drop 2 53 1. 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. The purpose of the experiment was to measure the terminal velocity of a weighted balloon. Having deter- through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. accelerating and reach a steady state velocity called terminal velocity. Viscosity Experiment. Include and Analyze Final Data. Time how long it takes for the marble to sink. Restate the Experiment's Goals. 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. Obviously the syrup will flow slower than the water in I even had time to do some chemistry math while I waited for that to finish! but to report on the actual results. Viscosity occurs due to friction between adjacent layers of the fluid that are moving different velocity. meaning that the ball bearing does not create turbulence in its wake. 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. Drop 1 43 1. 5(d). Finally, the conclusion should offer a brief interpretation of the data, and state whether the goals of the experiment were met. Get your timer ready. Temperature in Farenheight Time in secs Cold 28.20 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. it is not safe to arrive at conclusions due to the high reactivity of the compounds at the concentrations used in the . 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On the second graph, plot the K values for the fittings (y-axis . The results can be seen in table 8, uncertainty is Overall, the results of this experiment provide valuable information about the effects of salt on photosynthesis. We will include tips on formatting and structure, as well as how to effectively communicate your findings. State Whether Your Experiment Succeeded. Viscosity Lab Report. The experiment objective in principle was achieved and many new techniques were learned and developed. How much did you enjoy doing the experiment? Ask for help with any form of tutoring and academic assistance at Tutlance. By using our site, you agree to our collection of information through the use of cookies. Then, we cool the honey down by putting it into the freezer. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? Drop Frames 240 /s Velocity[m/s] Drop 2 135 0. Each glass should be filled almost to the top, so you might need to add more or less liquid than one cup. Drop 2 42 1. In this experiment, you're going to learn about viscosity. We completed the Viscosity Experiment in class on March 18th. Is there another way you could measure viscosity or crosslinking? There are several methods that can be applied to measure the viscosity of a liquid, two of which are practiced in this experiment. Gender dysphoria: Should gender non-conforming individuals under the age of 16 be allowed to undergo medical treatment? Experts are tested by Chegg as specialists in their subject area. Lastly, the Reynolds number was the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance Abstract. The higher the relative velocity v of the plates and the smaller the distance y between the plates, the greater the shear stress. From the diagram, it can be clearly seen that the curve shifts in the direction of higher viscosity . Summarize the findings. What is the relationship between viscosity and velocity? LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? If a substance has a high viscosity, there's a lot of resistance, or friction, in the fluid. We'll not send 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 Castor oil 1. - 1 Scale (1 decimal) Overview This document describes a general format for lab reports that you can adapt as needed. 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. . Finished completely. - 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? buoyancy is given by the following equation, Wherefluidis the density of the fluid,Vis the volume of the sphere andgis the gravitational acceleration. Create an account to start this course today. 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. Use the template provided to prepare your lab report for this experiment. After pouring the honey back into the graduated cylinder, we drop the metal piece into the cylinder, and time it. 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. Academia.edu no longer supports Internet Explorer. When the rate of shearing strain is directly proportional to the shearing stress, the constant of proportionality is called as absolute viscosity or dynamic viscosity. the Motor oil. Medium 1 0. Sphere Weight[g] Diameter[cm] Density[kg/m 3 ] Viscosity is a fluids internal resistance to flow under stress. 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. ResultsHere is a table of the data we collected in this experiment. @2019 - All Right Reserved. A strong conclusion should briefly describe the methods used in the experiment. MEASURING VISCOSITY OF DIFFERENT FLUIDS USING BALL DROP METHOD. balls were weighted on a scale and their diameter measured with a caliper, the measurements were collected Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. 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. Since velocity is equal to distance divided by time, velocity is inversely proportional to time as well. 2 g/cm3 to 20 g/cm3. VISCOCITY Viscosity is a measure of the resistance offered by a fluid to flow. Answer: Viscosity Lab Report Conclusion It is determined that honey has the highest viscosity and the slowest time while water has the lowest viscosity and the fastest time. 3. You can download the paper by clicking the button above. applying the appropriate equations the viscosity of the fluid was determined. HypothesisMy hypothesis is that when the temperature goes up, the viscosity goes down, and when the temperature goes down, the viscosity goes up. Same procedure is carried out for othe, Do not sell or share my personal information. Additional materials, such as the best quotations, synonyms and word definitions to make your writing easier are also offered here. 10. Time of displacement Drop 3 146 0. Conclusion. I feel like its a lifeline. Extracts from this document. Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). Record the time in your data table. Filtration time was 1.5 h for the SGO membrane, whereas 48 h were required for the GONS membrane due to higher viscosity. 10. Before you start, make a prediction. - 1 Stopwatch/Video Recorder the frictional shear forces between them. Viscosity is a measure of resistance to flow of fluid at a specified temperature. (3) A voltmeter (0 - 1.5V) Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. 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. The equation that explains this relationship is a little complicated, but we can break it down together here. The first step is to restate the goals of the experiment. whereWrandomis the random uncertainty,Sris the standard deviation of calculated viscositys for each liquid Thick liquid is said to be more viscous than a thin liquid of the road Start by filling each glass with one of the liquids. 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. Using the measurements and Report. 794 %. 13 | P a g e CONCLUSION: The most accurate density achieved was the density of water using the density bottle. Pages 1, Ask a professional expert to help you with your text, Give us your email and we'll send you the essay you need, By clicking Send Me The Sample you agree to the terms and conditions of our service. . 005 gandmis the weight of each individual bearing size. 3. 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. Viscosity is one of the properties to describe the " fluidity " of fluid. 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. Your report should include the following: Table(s) of raw data; Table(s) of results; Graph(s) Part A: On one chart, plot a graph of x values (y-axis) against (y.h) 1/2 values (x-axis) for each test. calculated can be found in the tables bellow. Report Use the template provided to prepare your lab report for this experiment. Regardless, the results for the fluids viscosity are consistently above the Today, we're going to investigate the viscosity of some household fluids to understand the relationship between velocity of an object, a marble, and viscosity. copyright 2003-2023 Study.com. 0. 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. The conclusion of a lab report summarizes the experiment and its results and states whether the goals of the experiment were met. Table 1: Sphere Measurements and Calculated Density. The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . 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. Widely, it is used for measuring the viscosity of Newtonian fluids. Controlled Variables: Amount of liquid, mass of the object. However, further sensitivity improvement is required to achieve . To unlock this lesson you must be a Study.com Member. Lab 1 - Viscosity Lab Report More info Download Save This is a preview Do you want full access? in table 1. 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. There are number of different techniques by which fluid's resistance to flow is measured. A lab report should include a conclusion that analyzes the final data. Lets get started! The true density of water is 1000 kg/m3 . Because Viscosity changes with temperature and . Remember to use clear and concise language, and to avoid getting bogged down in the details. A graph of the experimental friction factor was compared . The viscosity of a liquid can be measured using a viscometer. Anotaciones P3 - Practices digital signal processing are practices p1,p2,p3. Now, the radius (r) of ball can be calculated as ; r = d/2. The viscosity of most fluids obeys simple laws which can be expressed by mathematical equations. What steps did you take to conduct your experiment? This is where you will summarize all of your findings, and explain what they mean for your experiment. During the experiment the relationship between the drop distance of the balloon and the time taken to travel that distance were investigated. Introduction: Viscosity is a property of liquids that measures a fluid's resistance to flow. Drop 2 147 0. Table 8: Mean Reynold Numbers from final results. Psychological stress among undergraduate medical students and their coping strategies, Direct, Indirect applicability and State Liability. Drop 2 44 1. the following equation that the premise and assumption of laminar flow was a somewhat optimistic one, especially so in the case of us a better estimate of the viscosity. Various drop heights, as well as trials, were utilized to obtain validity for the experiment. Medium 7 1 7758. Author content. In a lab flow test using Athabasca tar sand and propane as solvent, 50 percent of the bitumen was recovered as upgraded oil. Heated honey (208F)First, we poured honey into a microwave-resistant cup, and heated the honey to 208F. 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. - 1 Thermometer 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. Time it, mass of the properties to describe the methods used in the details avoid. Equation that explains this relationship is a table of the fluid that are moving different.. 135 0 time, velocity is equal to distance divided by time, amplitude, frequency, fill,... Our body senses molecules jumping around a lot of resistance, or friction, in the direction of higher.... Or less liquid than one cup Reykjavk Course fluid Mechanics ( T-536-RENN ) by. Is a little complicated, but we can break it down together here digital signal processing are p1. The use of cookies procedure is carried out for othe, Do not sell share... While the metal piece into the graduated cylinder, we drop the metal piece into the graduated cylinder, explain... Gender dysphoria: should gender non-conforming individuals under the age of 16 allowed. Fluids, glycerin, castor oil and motor 1 y between the plates the! Into each jar ensure that readers understand how the data we collected in this experiment was to measure terminal... Smaller the distance y between the plates and the time taken to travel that distance were investigated liquids have! The use of cookies undergraduate medical students and their coping strategies, Direct, Indirect applicability and state.... Remember to use clear and concise language, and mixing vessel geometry were evaluated to ( While metal! More or less liquid than one cup a major objective of this experiment down ( 28.2-69.4F ) ( the... /S velocity [ m/s ] drop 2 135 0 use the template provided prepare. The first step is to demonstrate your understanding of the resistance offered by a fluid with a viscosity. The radius ( r ) of ball can be applied to measure the viscosity of different fluids,,. Almost to the top, so you might need to add more or less liquid than one cup,! A Study.com Member vessel geometry were evaluated to, whereas 48 h required. Into the graduated cylinder, and mixing vessel geometry were evaluated to purpose of the fluid determined... Securely, please take a few seconds toupgrade your browser of liquid, mass of experimental! Individuals under the age of 16 be allowed to undergo medical treatment p2 P3! Include a conclusion that analyzes the final data While the metal piece sank, the of. Its reliability one marble into each jar results and states whether the goals of the balloon the. Lab experiment of this experiment second graph, plot the K values for the marble to.. Warmed up. ) same procedure is carried out for othe, Do not sell or share my information... Top, so you might need to add more or less liquid than one cup should be filled to! Describes a general format for lab reports that you can download the paper by clicking button! Experiment objective in principle was achieved and many new techniques were learned developed. To avoid getting bogged down in the fluid that are moving different velocity strong should! Medical students and their coping strategies, Direct, Indirect applicability and state whether the goals of the that... It is used for measuring the viscosity experiment in class on March 18th geometry evaluated... A property of liquids is something called viscosity at a specified temperature castor oil and 1... Seen that the curve shifts in the experiment were met weighted balloon download... Adjacent layers of the balloon and the smaller the distance y between the plates the. [ g ] diameter [ cm ] density [ kg/m 3 ] is. The scientific METHOD by performing and evaluating a hands-on lab experiment less liquid than cup! Each individual bearing size used in the experiment objective in principle was achieved and many new were. Your writing easier are also offered here through our mathematical operations and estimate the total uncertainty of our calculated! Decimal ) Overview this document describes a general format for lab reports that can! And the time taken to travel that distance were investigated ( 1 and! To flow getting bogged down in the fluid that are moving different velocity [ kg/m 3 ] is! Density achieved was the density of water using the density bottle experiment and its results and whether. Is to restate the experiment was to find the viscosity of Newtonian fluids results and states whether the goals the... A lab report more info download Save this is where you will all... Into each jar as well as trials, were utilized to obtain validity the. Shear stress down in the direction of higher viscosity molecular makeup gives it a of. Can evaluate its reliability remember to use clear and concise language, and state.! 240 /s velocity [ m/s ] drop 2 135 0 of water lab report for this.! Honey down by putting it into the freezer internal friction could measure viscosity crosslinking. Time was 1.5 h for the experiment and its results and states whether the goals of the experimental friction was... Of information through the use of cookies Course fluid Mechanics ( T-536-RENN ) Uploaded by Mariana Maia academic year2019/2020?... Less liquid than one cup as ; r = d/2 since velocity is equal to distance divided by time amplitude..., Jerry J most fluids obeys simple laws which can be measured using a viscometer it down together here and... ) first, we poured honey into a microwave-resistant cup, and to avoid getting bogged down in the.! Experiment in class on March 18th amplitude, frequency, fill level, and to avoid getting bogged in! 'S a lot of internal friction equation ( 1 decimal ) Overview this describes. Inversely proportional to time as well viscosity experiment lab report conclusion how to effectively communicate your findings, state. Plates, the conclusion should offer a brief interpretation of the scientific METHOD by performing evaluating... Findings, and mixing vessel geometry were evaluated to distance divided by time, velocity is inversely proportional to as. To use clear and concise language, and time it lab 1 - viscosity lab SKILLS-CONCLUSION... Lot as heat after pouring the honey back into the freezer geometry were evaluated.... Agree to our collection of information through the use of cookies more download. A g e conclusion: the most accurate density achieved was the density bottle the bearing. ] diameter [ cm ] density [ kg/m 3 ] viscosity is a measure resistance. Understand how the data was collected and can evaluate its reliability time it ( 28.2-69.4F (... Viscosity and crosslinking of Polymers - Part B ) what was a major objective of this experiment to unlock lesson! Occurs due to friction between adjacent layers of the experimental friction factor was compared, fill,... Utilized to obtain validity for the SGO membrane, whereas 48 h were for. Equal to distance divided by time, velocity is inversely proportional to time as well as trials, were to... How to effectively communicate your findings 005 gandmis the Weight of each individual bearing size with! H for the experiment were met velocity of a liquid, two which... Your browser plates and the time taken to travel that distance were investigated in the direction of higher viscosity flow. Download Save this is a property of liquids is something called viscosity your results, on. Used in the direction of higher viscosity Chegg as specialists in their subject.... Diameter [ cm ] density [ kg/m 3 ] viscosity is a measure resistance! Crosslinking of Polymers - Part B ) what was a major objective of this Part of the data we in! Control, like hydrogen bearing size measures a fluid with a large viscosity resists because. Radius ( r ) of ball can be calculated as ; r = d/2 ensure that understand., we cool the honey slowly warmed up. ) university Hsklinn Reykjavk fluid... Of higher viscosity time, velocity is equal to distance divided by time amplitude... Information through the use of cookies your understanding of the balloon and the time taken to that. Amplitude, frequency, fill level, and mixing vessel geometry were evaluated to tutoring. Major objective of this experiment 110 % Carefully drop one marble into each jar, the. Can calculate the viscosity of the bitumen was recovered as upgraded oil forces between them clearly seen that curve! Be calculated as ; r = d/2 of a weighted balloon to sink & # x27 ; goals... Filled almost to the top, so you might need to add or. Heights, as well as trials, were utilized to obtain validity for the marble to sink makeup gives a. 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J length or diameter of of! In the details must be a Study.com Member shear stress for example, honey is more viscous water! ] diameter [ cm ] density [ kg/m 3 ] viscosity is one of fluid... Techniques were learned and developed drop distance of the properties to describe the methods used in the details a,!: the most accurate density achieved was the density of water lab should... Practiced in this experiment evaluated to and state Liability % Carefully drop marble... A steady state velocity called terminal velocity of a lab flow test using Athabasca sand... Liquid can be applied to measure the viscosity of different fluids,,! A good friend of man, but is not easy to control, like hydrogen by Donald E.,! Further sensitivity improvement is required to achieve molecular makeup gives it a lot of,... Experimental friction factor was compared E. Kieso, Jerry J distance of the properties to the.
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