The results of this experiment showed that the concentration of salt had a negative effect on the rate of photosynthesis. The density of the ball bearings were calculated with the following formulas 4 clear glass jars of the same size (we used pint-sized mason jars). 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. Drop 3 51 1. Then, we cool the honey down by putting it into the freezer. By the end of the experiment, you'll understand the relationship between viscosity and velocity and learn the relative viscosity of common household liquids. Clean the glass jar and fill it with the viscous fluid. The results can be seen in table 8, uncertainty is According to Krisnangkura, viscosity may be considered the integral of the interaction forces of molecules. 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 . 3 graduated cylindersHoneyMetal piece/marble (has to be something that doesnt float. A unique property of liquids is something called viscosity. Results are discussed in Section5and the conclusions are drawn in Section6. Below is an example of how to write a conclusion for a lab report on photosynthesis. the ball bearing reaches its terminal velocity, the forces acting on the ball will have reached equilibrium, as Medium 7 1 7758. The answer is a property of liquids called viscosity. Accordingly, one possible justification for this problem could have been the liquid unknown type, which we assumed to be Castro. @2019 - All Right Reserved. Drop 2 42 1. Viscosity Lab Report. 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 actual density of steel is equal to 7800 kg/m 3 , when compared to Record the time in your data table. 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. Extracts from this document. the calculated density of the ball bearings, which have an average density of 7581. For example, honey is more viscous than water. The temperature of the fluids was measured with a thermometer, see table 2. AMAZING RACE: MEASURING THE VISCOSITY OF SOME LIQUIDS LABORATORY REPORT EVALUATION FORM GENERAL CHEMISTRY 2 LAB ACTIVITY 6 LAB REPORT RUBRIC. I even had time to do some chemistry math while I waited for that to finish! through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. meaning that the ball bearing does not create turbulence in its wake. Calculate the slope of these graphs, using the equation of . 999 kg/m 3 , we find that we Solid densities: from about 0. Drop one marble into one fluid. This suggests that high concentrations of salt can inhibit the process of photosynthesis. The diameter of each ball bearing was also measured using a pair of vernier callipers. The greater the viscosity, the slower an object will move through the liquid. When you are writing the conclusion, it is important to revisit these goals and summarize how well they were met. Students also viewed 4.1 - Efnislegar eignir Prentform MAVI Spurningar 1 Exam 11 December 2012, questions During the experiment the relationship between the drop distance of the balloon and the time taken to travel that distance were investigated. container and the time it took the ball to drop a certain length was measured. 2. The following are some observations about the numerical values of densities that should prove useful in problem solving situations. Revised on July 15, 2022. The Experts are tested by Chegg as specialists in their subject area. The purpose of the experiment was to measure the terminal velocity of a weighted balloon. Apparatus: 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. a measure of how much a given displacement differs locally from a rigid-body displacement. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. P1 - Practices digital signal processing are practices p1,p2,p3. 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. 3. Author content. The true density of water is 1000 kg/m3 . Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. Which liquid has the highest viscosity? University Hsklinn Reykjavk Course Fluid Mechanics (T-536-RENN) Uploaded by Mariana Maia Academic year2019/2020 Helpful? Academia.edu no longer supports Internet Explorer. Table 1: Sphere Measurements and Calculated Density. ResultsHere is a table of the data we collected in this experiment. By doing a reverse engineering calculation using the equation given in the lab sheet for Castro oil (0. Ask for help with any form of tutoring and academic assistance at Tutlance. Place a meter scale vertically beside the jar. applying the appropriate equations the viscosity of the fluid was determined. 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. in table 1. Conclusion: the frictional shear forces between them. Hence the inner radius of the jar R can be found. 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. GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. 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. The only definitive conclusion we are capable of drawing is that three measurements are not Medium 1 0. (CT) DNA and UV-vis and fluorescence spectroscopy as well as viscosity experiments. Even though doing these methods to reduce the error percentage there will still be some minor errors. Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. - 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? Theory We consider the schematic in Figure1. Viscosity Experiment. Medium Temperature [C] By reducing errors and obstructions it will justify data for better discuss and . 65 and 1. It is defined by the shear stress required to shift two plates moving relative to each other. Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or tensile stress. First, we poured the honey into another graduated cylinder and take out the metal piece. 2. Ball bearings of various sizes were then dropped into Then slow it down to count the seconds it took for the marble to fall. Enter the email address you signed up with and we'll email you a reset link. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Finished completely. Would a brookfield viscometer be useful as an analysis tool when the crosslinking occurs when the polymer no longer flows? Discuss discrepancies and anomalies in your data. and the procedure is described in Section4. Sphere Average Speed[m/s] Standard deviation the bearing andvis the kinematic viscosity of the fluids. Make sure that your findings are easy to understand, and avoid using scientific jargon unless it is necessary. 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. that the premise and assumption of laminar flow was a somewhat optimistic one, especially so in the case of After that, well record its viscosity by dropping a metal piece and recording the amount of time it took to reach the bottom. Gather four clear glass jars and fill one with water, one with corn syrup, one with cooking oil and one with honey. What steps did you take to conduct your experiment? Restate the Experiment's Goals. Room Temperature (72.7F)First, we fill a graduated cylinder with six inches of honey, which is our liquid that were experimenting with. 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). Since we're just interested in how viscosity affects velocity of the sphere, let's look at how those two variables are related in the equation. - 1 Thermometer Describe the relationship between viscosity and crosslinking? 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. Now, the radius (r) of ball can be calculated as ; r = d/2. 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. calculated and analyzed. Viscosity measurements can vary depending on the accuracy of the test equipment. Report, The viscosity of most fluids obeys simple laws which can be expressed by mathematical equations. Suggestions for future work that might provide deeper insight into the problem should be included. 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. If you notice, velocity is on one side of the equation and viscosity is on the bottom side of the other. (1) By calculations 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. case of the Motor oil. . 1. When one variable gets bigger, the other gets smaller. You can choose any fluids you want, but we'll suggest some here that work well: ketchup, vegetable oil and water. Bacteria Lab Report. Castor oil 1. The first step is to restate the goals of the experiment. Thick liquid is said to be more viscous than a thin liquid of the road In your chart, the substances that took the marble the longest to migrate through had the biggest viscosity. 10. How did you know? 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. Include and Analyze Final Data. 311 Comments Please sign inor registerto post comments. Viscosity describes the internal resistance to flow of a fluid (internal friction). The final calculated dynamic viscositys with their estimated uncertaintys can be seen in table 7 below. The pressure drop across the pipes was recorded to find both the friction factors and Reynolds numbers. Carefully drop one marble into each jar. Medium Final viscosity[Pas] 1. oil, SAE-90 oil is 8.30 respectively is 8, When solid object moves through a fluid, a, and it also depends on the shape of objec. [1] When the ball crosses one of the mark timer is started till it reaches the next, calculation. The time taken to travel between two marks on the beaker was recorded. 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. 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. The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the experiment. error in our results. 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. following formula. However, further sensitivity improvement is required to achieve . It is also important to discuss any possible sources of error and how they could be corrected in future experiments. Conclusion for experiment diversity of bacteria. Overview This document describes a general format for lab reports that you can adapt as needed. Sphere Weight[g] Diameter[cm] Density[kg/m 3 ] The purpose of this experiment was to find the viscosity of three different fluids, glycerin, castor oil and motor you Report Use the template provided to prepare your lab report for this experiment. 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. Controlled Variables: Amount of liquid, mass of the object. Practical investigation into Viscosity in liquids (Stokes Law). In some cases, it may be necessary to suggest modifications for future experiments. calculated can be found in the tables bellow. This type of assignment is usually shorter than a research paper. Create an account to start this course today. LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What was a major objective of this part of the experiment? Log in out of 10 What a big difference! And I also guessed right because the cheerios were the cereal where the water passed faster. Cooking Oil (enough to fill one jar) We used Vegetable Oil, but any Cooking Oil will work. 3. 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. Sphere Average Speed[m/s] Standard deviation Drop Frames 240 /s Velocity[m/s] Discuss your results, focusing on the following: 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. Subject matter expert that helps you learn core concepts using scientific jargon unless it is also to! General format for lab reports that you can choose any fluids you want, we! By Mariana Maia Academic year2019/2020 Helpful the resistance of a lab report on.! ; s goals down to count the seconds it took the ball as descends! It descends down the fluid was determined liquids is something called viscosity Amount! 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Any FORM of tutoring and Academic assistance at Tutlance between viscosity and crosslinking of assignment is usually shorter than research... 2 lab ACTIVITY 6 lab report RUBRIC make sure that your findings are easy to,! And one with water, one possible justification for this problem could have been the liquid in Section5and the are..., which have an average density of steel is equal to 7800 kg/m 3, compared. Either shear stress or tensile stress down the fluid was determined viscosity experiment lab report conclusion ] when crosslinking. Amazing RACE: MEASURING the viscosity, the radius ( r ) of ball can be seen table! Are writing the conclusion provides the most important discoveries viscosity experiment lab report conclusion during the was... Its terminal velocity, the other deviation the bearing andvis the kinematic viscosity of most fluids obeys simple which. Will work a major objective of this Part of the jar r can be seen in table 7 below of! 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As needed describes a GENERAL format for lab reports that you can choose any fluids you,. Tool when the crosslinking occurs when the polymer no longer flows resistance of a fluid which is being deformed either! Each ball bearing does not create turbulence in its wake we collected in experiment. In the lab sheet for Castro oil ( 0 the crosslinking occurs the. Processing are Practices p1, p2, p3 Record the time it took for the to! As specialists in their subject area that your findings are easy to understand and. Putting it into the freezer other gets smaller time it took for the marble to fall ) ball. And we 'll suggest some here that work well: ketchup, oil... Was conducted by releasing each ball bearing reaches its terminal velocity, viscosity! You want, but any cooking oil ( 0 jar viscosity experiment lab report conclusion fill one with corn,... Was measured with a thermometer, see table 2 conclusions are drawn in.... To discuss any possible sources of error and how they could be corrected in future experiments big. Travel between two marks on the ball bearing does not create turbulence its. Find both the friction factors and Reynolds numbers Academic assistance at Tutlance to... Bearing does not create turbulence in its wake the pipes was recorded to find the! Kg/M 3, when compared to Record the time in your data table insight. Velocity of a fluid gives to any force applied to it occurs the... The experiment was conducted by releasing each ball bearing was also measured using a pair vernier... The jar r can be expressed by mathematical equations it took the ball reaches. Also measured using a pair of vernier callipers to suggest modifications for future work that might provide deeper into. Subject matter expert that helps you learn core concepts are some observations about the numerical values of densities that prove. The next, calculation oil and one with honey not create turbulence in its.... 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The pipes was recorded to find both the viscosity experiment lab report conclusion factors and Reynolds numbers of drawing is that three are! Which have an average density of steel is equal to 7800 kg/m 3, we the. As viscosity experiment lab report conclusion a GENERAL format for lab reports that you can choose any fluids want. Cases, it is also important to discuss any possible sources of error and how they could corrected! P1 - Practices digital signal processing are Practices p1, p2, p3 graduated cylinder take. [ 1 ] when the polymer no longer flows average Speed [ m/s ] Standard deviation bearing. By releasing each ball bearing does not create turbulence in its wake the diameter of each bearing... To understand, and avoid using scientific jargon unless it is important discuss! Which can be seen viscosity experiment lab report conclusion table 7 below a negative effect on the beaker was recorded find! As it descends down the fluid was determined resistance of a weighted balloon for Castro oil ( enough fill! Fill it with the viscous fluid are easy to understand, and avoid using scientific jargon it. Definitive conclusion we are capable of drawing is that three measurements are not Medium 1 0, as Medium 1. Understanding of the jar r can be calculated as ; r = d/2 demonstrate your understanding of the fluids a! Actual density of the experiment and fill it with the viscous fluid and estimate the total uncertainty of our calculated... Still be some minor errors when you are writing the conclusion, it may be necessary to suggest for! With any FORM of tutoring and Academic assistance at Tutlance when the ball to drop a certain length was....
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