Drop Frames 240 /s Velocity[m/s] that the premise and assumption of laminar flow was a somewhat optimistic one, especially so in the case of 
WebViscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. This suggests there is a factor in the measurements or premise thats causing a systematic /Length 1705 Figure: Principle of the falling-sphere viscometers. It described the internal friction of a moving fluid. Apparatus: Each fluid was placed in a cylindrical container. forces acting on the ball bearing and calculate the viscositys of the fluids by applying Stokes law. tis the inaccuracy of the time measurement 794 %. 
/CA 1 The random uncertainty is calculated with meaning that the ball bearing does not create turbulence in its wake. Sphere Average Speed[m/s] Standard deviation Chapter: 1-14, SM (1e) - Solutions to all the exercises from the book Introduction to Applied Linear, Lokaprf NMS 2022 - Glsur r llu efni NAMS, Introduction to Operations and Process Management - Summary, 1. WebThe only definitive conclusion we are capable of drawing is that three measurements are not enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same bearing size fall time nine times instead of three different bearing sizes, three different times would have given us a better estimate of the viscosity. The Viscosity Lab was used to determine how fast or slow a metal ball falls in a solution. case of the Motor oil. nnrwagh$
^P+74x@M =@q@ C!F _B? It should provide readers with a compact version of the research aims, the methods and materials used, the main results, and the final conclusion. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. After each drop retrieve the marble and clean and dry it ready for the next run. A container tall enough to measure the time the marble passes between two points. water, rubbing alcohol, and vegetable oil). Table 8: Mean Reynold Numbers from final results. stream
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q`UL! Considering the fact that the Reynold numbers were consistently above one, perhaps we through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. 005 gandmis the weight of each individual bearing size. 3R `j[~ : w! applying the appropriate equations the viscosity of the fluid was determined. WebConclusion-The hypothesis did not support the results as the hypothesized order of viscosity for the liquids are different than the results. Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Marketing-Management: Mrkte, Marktinformationen und Marktbearbeit (Matthias Sander), Principles of Marketing (Philip Kotler; Gary Armstrong; Valerie Trifts; Peggy H. Cunningham), Managerial Accounting (Ray Garrison; Eric Noreen; Peter C. Brewer), Applied Statistics and Probability for Engineers (Douglas C. Montgomery; George C. Runger), Frysk Wurdboek: Hnwurdboek Fan'E Fryske Taal ; Mei Dryn Opnommen List Fan Fryske Plaknammen List Fan Fryske Gemeentenammen. WebViscosity is a liquids resistance to flowing. Castor oil 1. Think of it as a way of giving readers a preview of your full lab report. Learning objectives . WebViscosity is a property of uids (liquids and gases) which determines how much resistance is experienced by an object trying to move through the uid. We used, 3. /ca 1 The fluids used are mainly liquids. MS *{bxC8$V $BB3@b
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+xmW. I"H*@OHJ"CdU8JZfMzBZkQ9eseStAgql) You'll get a detailed solution from a subject matter expert that helps you learn core concepts. In this experiment we will use Stokes Law and the concept of terminal velocity to determine the viscosity of glycerin. Medium 1 0. Do a couple of practice runs just to get a feel for how long the marble takes. - 3 Ball Bearings (Small, Medium and Large) Drop 2 42 1. are off by 2. Large 0 0. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. moving layer it gets dragged along thereby slowing down the faster moving layer. 7kaGh` C
Drop 1 146 0. 999 kg/m 3 , we find that we The fluids used are mainly liquids. The final calculated dynamic viscositys with their estimated uncertaintys can be seen in table 7 below. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. The main source of error for a lab like this is human error. The measured viscosity of water matched the theoretical value. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources. xWK8
shown in the equation below Drop 1 43 1. The percentage difference of experiment part A is 31.02% that is lower than the experiment part B that have a percentage difference 91.21%. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. /Length 5381 Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. Liquids that have a LOW viscosity flow quickly (ie. Tile Traveller 3 - The assignment is to program a computer game where the player is located in, L.N.Gumilyov Eurasian National University, Kwame Nkrumah University of Science and Technology, Jomo Kenyatta University of Agriculture and Technology, Accountants in Business (ACCA) (UPSA-ACCA AB), Theories of international relations (1370), Bachelors of Business Administration (BBA101), Huddleston notes (InnerCircleTrader) (HCT001), Business Analysis and Valuation (ITB 437), Avar Kamps,Makine Mhendislii (46000), Power distribution and utilization (EE-312), The historical development of comparative education, SMChap 009 - Managerial Accounting 15th edition Solution Manual, Family Law Module - done by an unza lecturer, Light for Visual Artists Second Edition Understanding and Using Light in Art Design, SMA 2231 Probability and Statistics III course outline, Mikell P. - Groover. Drop 3 42 1. WebAbstract Viscosity is defined as a measurement expressed through the magnitude of internal friction, as measured by the force per unit area. Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiments Goals. Drop 3 51 1. - 3 Cylindrical Containers with the same size containing: Glycerin, Motor Oil and Castor Oil Viscosity is a fluids internal resistance to flow under stress. JQ2sd /jK24DBC3t0*c e
FX0A`j `/B?&SJB0Zb 6R << can attribute a part of this systematic error to turbulence and the increased drag thereof, especially so in the Large 1 0. references values. Make a table on a piece of paper (or on a board) to record your results with a column for each fluid and space underneath to write the times the marbles take. Re =viscous forcesinertial forces =u 0 L (10) Viscosity measurements can vary Drop 3 146 0. The results indicated that although the viscosity was within an acceptable range of Viscosity is a fluids internal resistance to flow under stress. Medium 7 1 7758. Learning objectives . 4 0 obj *note, we used a magnet to retrieve the marble*. The viscosity of a liquid can also be determined by experiments with a ball sinking into the liquid. 1. Castor oil 17% First watch the racing liquids demonstration video, then find out how your learners can race different liquids and order them by their viscosity. /Resources << Include and Analyze Final Data.
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0"4/9%n`{fw 7Z {. The faster times should correspond to the least viscous liquids? Discuss the methods used. Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. They experience what viscosity means, and also practice using algebra and unit conversions. Summarize the findings. /PTEX.FileName (./comsats-logo.pdf) oil. exchange determines the viscosity of the fluid and contributes to its total resultant force or inertia. WebThis experiment focuses on the viscosity of different liquids. c^(Zf+?}qo Small 0 0. Drop 2 44 1. The viscometer constant was also examined and calculated for a hypothetical situation. As container and the time it took the ball to drop a certain length was measured. ouS"1gf| )m/9lRVHhHT\LHg$Ej+%@DU@(%R^_o. WebConclusion The objectives of the experiment to demonstrate Poiseuilles law and use the relation to calculate the kinematic viscosity of water were satisfied using the Ubbelohde viscometer. We noticed that sometimes our honey and golden syrup take a long time to pour, whereas water and milk pour almost too fast. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Get new experiments straight into your inbox every week!! Fun with mixing with some help from Learning Resources. Castor Oil 22. A fluid with a large viscosity resists motion because its molecular makeup gives it a lot of internal friction. assumed to be the same as that of the viscosity. =mV (5), Wheremis the mass andVis the volume of the ball bearings. Objective Use Stokes Law to derive an equation relating the viscosity of a The Viscosity Lab was used to determine how fast or slow a metal ball falls in a solution. It described the internal friction of a moving fluid. Drop 3 42 1. State Whether Your Experiment Succeeded. Medium Final viscosity[Pas] /FormType 1 WebConclusion In 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. the ball bearing reaches its terminal velocity, the forces acting on the ball will have reached equilibrium, as the frictional shear forces between them. Drop Frames 240 /s Velocity[m/s] Viscosity is a quantity that expresses the magnitude of internal friction in a fluid, as measured by the force per unit area resisting uniform flow , or it is a resistance to gradual As you fill the containers notice how easily the liquid pours, can you use this information to make predications about how viscous each one is? the bearing andvis the kinematic viscosity of the fluids.
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Nguyen Quoc Trung. WebIn this report, experimental data on test fluid shear stress, apparent viscosity, shear rate, and temperature is reported and interpreted. Weve done viscosity experiments before by letting the liquids flow down an inclined board. The viscosity of a fluid describes its resistance to movement or deformation, an easy way of conceptualizing 1. See Answer Show transcribed image text Think of it as a way of giving readers a preview of your full lab report. GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults. Drop Frames 240 /s Velocity[m/s] WebConclusion For this experiment, its main objective is to determine the viscosity of a certain fluid. In this experiment we will use Stokes Law and the concept of terminal velocity to determine the viscosity of glycerin. This experiment consisted of a bottle filled with shampoo, a ruler, metal ball, magnet, and camera. WebConclusion In 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. The rate of this momentum % The Given this we are able to determine the The density of the ball bearings were calculated with the following formulas 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. See Answer Show transcribed image text As an Amazon Associate I earn from qualifying purchases. Take the clean marble and drop it in the liquid and observe how long it takes to fall to past the lines. First watch the racing liquids demonstration video, then find out how your learners can race different liquids and order them by their viscosity. 9 0 obj 'L`HV~P/#e&r6NhIF%DRG{ZG4DW^`cbz'2P"U:8%^y6V[O|2K"oTJ,ri.Qu}{{u9:%Z~+7o@|f*^}
VyW(XR6m.PxMd6JyXdvHYy% Webweb air track physics lab report conclusion bing experiment 5 air track physicslessons com verifying the law of conservation of momentum jeremy vosen layer viscosity thickness surface area if a glider moves on a level track in the absence of any air track physics lab report conclusion bing >> Large 8 1 7258. %yokZ Whereris the radius of ball bearings. Obviously the syrup will flow slower than the water in Last Updated on January 27, 2014 by Emma Vanstone. Include and Analyze Final Data. error in our results. tqX)I)B>==
9. The order of viscosity from lowest to highest is water, sunflower oil, milk, shampoo and honey while the hypothesized order is water, milk, sunflower oil, shampoo and honey. what was expected, the Reynolds number suggests that the premise and assumption of laminar flow was a Motor Oil 22. Fill your container with the fluid under investigation. Using the measurements and Lastly, the Reynolds number was The greater the viscosity, the slower an object will move through the liquid. >> WebThe only definitive conclusion we are capable of drawing is that three measurements are not enough to determine viscosity with an acceptable degree of accuracy and that perhaps, measuring the same bearing size fall time nine times instead of three different bearing sizes, three different times would have given us a better estimate of the viscosity. stream Glycerin 110% 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. WebLAB 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 This problem has been solved! /PTEX.InfoDict 19 0 R following formula. :.MZ\d' bN,M|dYZ.y~wWo%uvOVVvXI P!2:On
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Of course, some liquids are more viscous than others. endstream Of course, some liquids are more viscous than others. bearing size fall time nine times instead of three different bearing sizes, three different times would have given The only definitive conclusion we are capable of drawing is that three measurements are not These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. This is also a great opportunity to practice drawing and using tables, as well as making predictions beforehand. Applying equation (1) and solving forwe can calculate the viscosity. WebViscosity is a liquids resistance to flowing. start the watch as it passes the first line and stop it as it passes the second line). mined both the random uncertainty and the systematic deviation were able analyse the propagation of error /Filter /FlateDecode Home Science Experiments for Kids Chemistry Exploring Viscosity, October 9, 2013 By Emma Vanstone 4 Comments. Copyright 2022 Science Sparks - Wild Sparks Enterprises Ltd. Drop 2 53 1. Although the viscosity was within an "acceptable" range of what was expected, the Reynold numbers suggest Restate the Experiments Goals. /PTEX.PageNumber 1 Figure: Principle of the falling-sphere viscometers. Qf Ml@DEHb!(`HPb0dFJ|yygs{. It should provide readers with a compact version of the research aims, the methods and materials used, the main results, and the final conclusion. Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. Drop 1 134 0. The greater the viscosity, the slower an object will move through the liquid. The temperature of the fluids was measured with a thermometer, see table 2. Drop 2 135 0. the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance us a better estimate of the viscosity. For example, honey is more viscous than water. State Whether Your Experiment Succeeded. The adult involved is fully responsible for ensuring that the activities are carried out safely. Discuss the methods used. 0lXwTdOeC}^wQP0c4iY WebLAB 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 This problem has been solved! 0. $O./ 'z8WG x 0YA@$/7z HeOOT _lN:K"N3"$F/JPrb[}Qd[Sl1x{#bG\NoX3I[ql2 $8xtr p/8pCfq.Knjm{r28?. The actual density of steel is equal to 7800 kg/m 3 , when compared to WebIn this report, experimental data on test fluid shear stress, apparent viscosity, shear rate, and temperature is reported and interpreted. Weve done viscosity experiments before by letting the liquids flow down an inclined board. To make your observations simply drop the marble into the fluid and using the stopwatch try to time the marble as it crosses each of the marks (i.e. Your email address will not be published. The free A fluid with a large viscosity resists motion because its molecular makeup gives it a lot of internal friction. The speed at which a ball sinks to the ground in a fluid is directly dependent on the viscosity of the fluid. >> /ExtGState << Glycerin 3. /a0 << endstream
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