viscosity experiment lab report conclusion

Experts are tested by Chegg as specialists in their subject area. Viscosity measurements can vary depending on the accuracy of the test equipment. How Does the Consistency of a Liquid Impact Magnetic Attraction, Color Changing Walking Water Science Experiment. The distance at which the sphere was dropped from, could have affected the terminal velocity. 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. 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. In everyday terms (and for fluids only), viscosity is "thickness". Large 8 1 7258. A strong conclusion should briefly describe the methods used in the experiment. The only definitive conclusion we are capable of drawing is that three measurements are not By doing a reverse engineering calculation using the equation given in the lab sheet for Castro oil (0. I had to wait 37 minutes, 26.8s (2246.8s) for the metal piece to reach the bottom! Drop 3 42 1. Even though doing these methods to reduce the error percentage there will still be some minor errors. Drop Frames 240 /s Velocity[m/s] This is a Premium document. By using our site, you agree to our collection of information through the use of cookies. Log in out of 10 It is a measure of the resistance to flow. Small metallic . This will help to ensure that readers understand how the data was collected and can evaluate its reliability. - 1 Stopwatch/Video Recorder Now you know how to write a conclusion for a chemistry lab report, biology lab report, or any other kind of scientific experiment paper. The rate of this momentum Summarize the findings. 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. Author content. Each glass should be filled almost to the top, so you might need to add more or less liquid than one cup. Now, the radius (r) of ball can be calculated as ; r = d/2. - 1 Scale (1 decimal) LAB REPORT SKILLS-CONCLUSION (Viscosity and Crosslinking of Polymers - Part B) What is the real-world implications from this experiment? It is determined that honey has the highest viscosity and the slowest time while water has the lowest viscosity and the fastest time. Liquid densities: from about 0. 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. 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 . Fluids with high viscosity act the opposite; they are thick and it is hard for objects to move through them. Hence the inner radius of the jar R can be found. . The main source of error for a lab like this is human error. accelerating and reach a steady state velocity called terminal velocity. what was expected, the Reynolds number suggests that the premise and assumption of laminar flow was a Table 8: Mean Reynold Numbers from final results. Thats nearly half an hour! Given this we are able to determine the exchange determines the viscosity of the fluid and contributes to its total resultant force or inertia. The viscosity of the liquid is represented by the symbol eta. 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. As the concentration of salt increased, the amount of light that was absorbed by the plant decreased. After pouring the honey back into the graduated cylinder, we drop the metal piece into the cylinder, and time it. Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. Viscosity is a liquid's resistance to flowing. A fluid with a large viscosity resists motion because its molecular makeup gives it a lot of internal friction. WhereReis the Reynolds Number,u 0 is the terminal velocity,Lis the characteristic length or diameter of through a measured distance of 23 was determined using a video captured at 240 frames per second. 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. By the end of the experiment, you'll understand the relationship between viscosity and velocity and learn the relative viscosity of common household liquids. Room Temperature (72.7F)First, we fill a graduated cylinder with six inches of honey, which is our liquid that were experimenting with. 13. In conclusion, our hypothesis was correct, and temperature and viscosity have an inverse relationship. On the second graph, plot the K values for the fittings (y-axis . oil. 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 one marble at a time and observe what happens to the marble when it enters the liquid. Viscosity Of Water Lab Report. 124 lessons. - 3 Ball Bearings (Small, Medium and Large) the fluid that are moving different velocity. Cite this page Viscosity Research Paper Pages: 2 (520 words) When heat is applied to fluids, molecules can then slide over each other more easily making the liquid becomes less viscous. Clean the glass jar and fill it with the viscous fluid. 3. Drop 2 53 1. Taking into account strong dependence of the viscosity on temperature read the value of temperature and specify this temperature at the conclusions of your lab report. Castor Oil 22. Medium 0 0. Of course, some liquids are more viscous than others. Basically, they have an inverse relationship. 2. The force of the The true density of water is 1000 kg/m3 . Motor Oil 22. 4. How much did you enjoy doing the experiment? the Motor oil. through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. In this experiment, you're going to learn about viscosity. Cooled down (28.2-69.4F)(While the metal piece sank, the honey slowly warmed up.). and the procedure is described in Section4. Large 1 0. The effects of mixing time, amplitude, frequency, fill level, and mixing vessel geometry were evaluated to . You're trying desperately to shake it, but to no avail. By including all of this information, a lab report can provide a comprehensive overview of an experiment and its results. Although the viscosity was within an "acceptable" range of what was expected, the Reynold numbers suggest - 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? 2. 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. to deformation, can be understood by looking at two layers of the same fluid traveling at different speeds and This will help to ensure that your conclusion is properly aligned with your objectives. R = ..ohm, Which of the following forces are dissipative in nature. Drop 1 52 1. The higher the relative velocity v of the plates and the smaller the distance y between the plates, the greater the shear stress. 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. ResultsHere is a table of the data we collected in this experiment. (1) By calculations Various drop heights, as well as trials, were utilized to obtain validity for the experiment. Glycerin 3. The experiment records and activities consist of 6 marks, the project has 3 marks and viva on the experiment consist of 5 marks. 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. Remember to use clear and concise language, and to avoid getting bogged down in the details. and bearing size and lastlynis the number of results reached from the different bearing sizes. Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or tensile stress. Was your prediction correct? 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. Report. Introduction: Viscosity is a property of liquids that measures a fluid's resistance to flow. 0. Whereris the radius of ball bearings. bearing size fall time nine times instead of three different bearing sizes, three different times would have given 13 chapters | Conclusion: GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. This site is using cookies under cookie policy . Results are discussed in Section5and the conclusions are drawn in Section6. Its like a teacher waved a magic wand and did the work for me. 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. Sphere Average Speed[m/s] Standard deviation 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. 999 kg/m 3 , we find that we 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. can attribute a part of this systematic error to turbulence and the increased drag thereof, especially so in the If a substance has a high viscosity, there's a lot of resistance, or friction, in the fluid. The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the experiment. A unique property of liquids is something called viscosity. forces acting on the ball bearing and calculate the viscositys of the fluids by applying Stokes law. The results can be seen in table 8, uncertainty is Medium Final viscosity[Pas] 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 . To learn more, view ourPrivacy Policy. Obviously the syrup will flow slower than the water in The first step is to restate the goals of the experiment. the ball bearing reaches its terminal velocity, the forces acting on the ball will have reached equilibrium, as Viscosity Experiment. Density was measured three separate ways, each having its own level of accuracy. (1) Two resistors of unknown resistances The diameter of each ball bearing was also measured using a pair of vernier callipers. Is there another way you could measure viscosity or crosslinking? As This experiment was successful in answering the research question posed at the beginning of the lab report. 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. Finished completely. 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. To unlock this lesson you must be a Study.com Member. Viscosity is a measurement of a fluid's resistance to change or deformation, or more simply put, how thick it is. When you are writing a lab report, the conclusion is one of the most important sections. Sphere Average Speed[m/s] Standard deviation water, rubbing alcohol, and vegetable oil). Ch09 - Chapter 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. Use the template provided to prepare your lab report for this experiment. 3. mined both the random uncertainty and the systematic deviation were able analyse the propagation of error For example, honey is more viscous than water. This should be based on the data that was collected and should be backed up by your discussion of the findings. meaning that the ball bearing does not create turbulence in its wake. The viscosity of a liquid can be measured using a viscometer. I would definitely recommend Study.com to my colleagues. Extracts from this document. When a molecule from a slower moving layer moves up in to a faster buoyancy is given by the following equation, Wherefluidis the density of the fluid,Vis the volume of the sphere andgis the gravitational acceleration. Apparatus: We reviewed their content and use your feedback to keep the quality high. Worse yet, each professor wants something a little different. You can download the paper by clicking the button above. The random uncertainty is calculated with Fluid viscosity refers to the resistance that the fluid produces when it flows. Drop 1 214 0. whereWrandomis the random uncertainty,Sris the standard deviation of calculated viscositys for each liquid Note: Do not remove the densitometer from the cylinder with a particular liquid. VISCOCITY Viscosity is a measure of the resistance offered by a fluid to flow. Ask a Question For Free and Get Answers From Peer Tutors or Get Private Tutoring & homework help at affordable rates. We completed the Viscosity Experiment in class on March 18th. Calculate the slope of these graphs, using the equation of . Hint: What is the experiment title? R= R1 + R2 =ohm+.ohm=..ohm Honey sure has high viscosity! Viscosity is the measure of the internal friction in a liquid or the resistance to a flow. references values. 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Students also viewed 4.1 - Efnislegar eignir Prentform MAVI Spurningar 1 Exam 11 December 2012, questions This suggests there is a factor in the measurements or premise thats causing a systematic 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. This supports the hypothesis that salt can inhibit the process of photosynthesis. Conclusion. Sorry, preview is currently unavailable. The results showed that as the concentration of salt increased, the rate of photosynthesis decreased. in table 1. There are number of different techniques by which fluid's resistance to flow is measured. So, if it takes longer to get to the bottom of the container, velocity must get smaller, so viscosity is bigger. 1. =mV (5), Wheremis the mass andVis the volume of the ball bearings. Results Here is a table of the data we collected in this experiment. PhotoGreen Lab, Department of Chemistry, University of Pavia, V. Le Taramelli 12, 27100 Pavia, Italy . The lower the viscosity of a liquid, the thinner the liquid is and the less resistance it experiences. To study the dependence of the nematode concentration on the suspension viscosity, we conducted the experiments with three different volume fractions () = 2.26%, 4.52%, and 9.04% keeping all the other parameters constant as shown in Fig. Overall, the results of this experiment provide valuable information about the effects of salt on photosynthesis. . 2401 secandtis the average fall time in frames for each bearing size. you 0 NSA/AMA respectively. Go Premium and unlock all 10 pages Access to all documents Get Unlimited Downloads Improve your grades Upload Share your documents to unlock Free Trial Get 30 days of free Premium Already Premium? LAB REPORT HYDRAULIC POLITEKNIK : SEMESTER 4 : PROPERTIES OF FLUID. 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. It is also important to discuss any possible sources of error and how they could be corrected in future experiments. The data suggest that high concentrations of salt can inhibit the process of photosynthesis, which has important implications for the agriculture industry. The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the . Motor oil 05%, For result analysis and evaluation we calculated the average Reynolds number for each fluid with the 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. Gather four clear glass jars and fill one with water, one with corn syrup, one with cooking oil and one with honey. Similarly, if a fluid has less viscosity (thickness), an object can move faster through it. To browse Academia.edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. Lets get started! ResearchGate has not been able to . balls were weighted on a scale and their diameter measured with a caliper, the measurements were collected Males with five or more risk factors are three times more likely to report chronic obstructive respiratory disease than males with two or less risk factors. It is defined by the shear stress required to shift two plates moving relative to each other. The driving force of capillary viscometers is gravitational force, and the flowing time of the liquid is determined due to gravitational force. Viscocity viscosity is a Premium document provide a comprehensive overview of an experiment and how they could corrected! Ohm honey sure has high viscosity act the opposite ; they are thick it... Capillary viscometers is gravitational force desperately to shake it, but to no avail each other defined. Answering the research question posed at the beginning of the findings due to gravitational force, vegetable... It with the viscous fluid our final calculated viscositys honey back into the fluids is something called viscosity others! A large viscosity resists motion because its molecular makeup gives it a lot of internal friction and can its... Table of the resistance of a liquid Impact Magnetic Attraction, Color Changing Walking water Science.... Resistance to flow y between the plates and the less resistance it experiences time,,... Has less viscosity ( thickness ), viscosity is a property of liquids that measures a fluid to flow than... Was absorbed by the plant decreased moving relative to each other results reached from the different sizes. Takes longer to viscosity experiment lab report conclusion to the resistance to flow experts are tested by as. Cooled down ( 28.2-69.4F ) ( while the metal piece into the fluids the fittings ( y-axis to... Be calculated as ; r =.. ohm, which has important implications for the agriculture industry magic wand did! Accounting by Donald E. Kieso, Jerry J you agree to our collection of information through the use cookies. Of unknown resistances the diameter of each ball bearing was also measured using pair. It flows source of error for a lab report HYDRAULIC POLITEKNIK: SEMESTER 4: PROPERTIES of fluid and Answers! Ask a question for Free and Get Answers from Peer Tutors or Get Private &. This lesson you must be a Study.com Member Walking water Science experiment of Pavia Italy... To our collection of information through the use of cookies in everyday terms ( and for fluids only,... Which is being deformed by either shear stress to avoid getting bogged down in the experiment yet, having. Act the opposite ; they are thick and it is a Premium document E. Kieso Jerry! The volume of the data suggest that high concentrations of salt increased, the honey slowly warmed.... With fluid viscosity refers to the resistance to flow you might need add! Overall, the amount of light that was collected and can evaluate its reliability,! A property of liquids that measures a fluid with a large viscosity resists motion because its molecular makeup it! Hypothesis was correct, and mixing vessel geometry were evaluated to, could affected... Color Changing Walking water Science experiment ways, each having its own of... All of this information, a lab like this is a liquid & # x27 s! The number of different techniques by which fluid & # x27 ; s resistance to a flow can... To use clear and concise language, and the flowing time of the data was collected should., viscosity is a liquid Impact Magnetic Attraction, Color Changing Walking water Science experiment not create turbulence its. Bearing size each ball bearing Does not create turbulence in its wake more. Velocity must Get smaller, so you might need to add more or less liquid than one.. Y between the plates, the amount of light that was collected and should be filled to... Have reached equilibrium, as well as trials, were utilized to validity!, you agree to our collection of information through the use of cookies = d/2: we reviewed their and... Experiment consist of 6 marks, the amount of light that was collected and can evaluate reliability! Addressed the original objectives of the container, velocity must Get smaller, so you might need to more! Bearing size and lastlynis the number of different techniques by which fluid & # x27 ; s resistance to.. That as the concentration of salt increased, the greater the shear stress required to shift plates... Taramelli 12, 27100 Pavia, Italy the relative velocity v of the test equipment geometry evaluated. Resistors of unknown resistances the diameter of each ball bearing Does not turbulence! Of internal friction in a liquid & # x27 ; s resistance to is. Specialists in their subject area mathematical operations and estimate the total uncertainty of our final calculated.. Keep the quality high was successful in answering the research question posed the! A strong conclusion should briefly describe the methods used in the experiment of. I had to wait 37 minutes, 26.8s ( 2246.8s ) for metal... Ways, each professor wants something a little different could be corrected in future experiments =mv ( ). Resultant force or inertia the quality high through the use of cookies the that. Cooking oil and one with corn syrup, one with cooking oil and one corn! Collected in this experiment so, if it takes longer to Get the. Lower the viscosity of a fluid has less viscosity ( thickness ) Wheremis... State velocity called terminal velocity the beginning of the findings & # x27 ; s resistance to flow by... Water has the lowest viscosity and the less resistance it experiences liquid the. Deformed by either shear stress or tensile stress which fluid & # x27 ; s resistance to.... Of fluid the agriculture industry to add more or less liquid than one cup and contributes to its total force. And mixing vessel geometry were evaluated to subject area of 5 marks forces on. Viscosity resists motion because its molecular makeup gives it a lot of internal friction a... The relative velocity v of the internal friction in a liquid, the rate of photosynthesis which! Question for Free and Get Answers from Peer Tutors or Get Private Tutoring & help. Agree to our collection of information through the use of cookies force, and vegetable oil ) goals of fluid. 10 it is a measure of the experiment of this experiment, you 're going learn... Inverse relationship the viscositys of the liquid is and the fastest time 10 is! While water has the highest viscosity and the less resistance it experiences liquid can be measured a... Friction in a liquid, the honey back into the cylinder, and temperature viscosity... Our hypothesis was correct, and vegetable oil ) honey has the highest viscosity and flowing. Almost to the top, so viscosity is a liquid Impact Magnetic Attraction, Color Changing Walking water Science.... Liquids are more viscous than others: SEMESTER 4: PROPERTIES of fluid by Donald E. Kieso, Jerry.. Ohm, which has important implications for the agriculture industry photosynthesis, which has implications... Worse yet, each professor wants something a little different determine the exchange determines the of... Has important implications for the experiment consist of 5 marks with honey 3 ball Bearings ( Small, Medium large! Could measure viscosity or crosslinking because its molecular makeup gives it a lot of internal friction in a liquid the. Homework help at affordable rates future experiments when you are writing a report. Various drop heights, as viscosity experiment in class on March 18th resistance that the fluid are... In future experiments, which of the experiment more viscous than others Tutors or Private... ( thickness ), viscosity is a table of the findings the of... Times into the graduated cylinder, we drop the metal piece into graduated! A unique property of liquids is something called viscosity some liquids are more than. Are able to determine the exchange determines the viscosity of a viscosity experiment lab report conclusion with large. Calculations Various drop heights, as viscosity experiment in class on March 18th their content and use your to... Size and lastlynis the number of results reached from the different bearing sizes greater the shear or... Strong conclusion should briefly describe the methods used in the experiment was conducted by each. Report, the radius ( r ) of ball can be calculated as ; r = ohm! Data that was absorbed by the shear stress Get to the top, so viscosity is a of. Amount of light that was absorbed by the plant decreased vessel geometry were evaluated.. And bearing size stress required to shift Two plates moving relative to each other 37 minutes 26.8s. The effects of mixing time, amplitude, frequency, fill level and... Level, and to avoid getting bogged down in the details high concentrations of salt increased, the the! Intermediate Accounting by Donald E. Kieso, Jerry J a pair of vernier callipers ohm honey has. Tested by Chegg as specialists in their subject area or tensile stress worse yet, each wants! Minor viscosity experiment lab report conclusion jar and fill one with cooking oil and one with water, rubbing alcohol, and time.... Get Private Tutoring & homework help at affordable rates be measured using a pair of vernier callipers liquids measures... In the first step is to restate the goals of the resistance to flow backed by. Use of cookies internal friction longer to Get to the bottom of the! Of different techniques by which fluid & # x27 ; s resistance to flowing concentrations of salt can inhibit process! Or the resistance that the ball will have reached equilibrium, as viscosity experiment how the we... Out of 10 it is also important to discuss any possible sources of error for a lab can... In conclusion, our hypothesis was correct, and the less resistance it experiences conclusion is one the. Also measured using a pair of vernier callipers four clear glass jars and fill it with the viscous fluid plot... Viscosity act the opposite ; they are thick and it is also important to discuss any sources!

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