These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. >> Glycerin 21. WebViscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. water, rubbing alcohol, and vegetable oil). Viscosity is a fluids internal resistance to flow under stress. The greater the viscosity, the slower an object will move through the liquid. Small 0 0. A container tall enough to measure the time the marble passes between two points. This is also a great opportunity to practice drawing and using tables, as well as making predictions beforehand. The experiment was conducted by releasing each ball bearing size 3 times into the fluids. Eh_|^WzYminvuKwQfoz{XS?Gj1M5%3opt3q]p?J uL6 8MeU]U p tis the inaccuracy of the time measurement Nguyen Quoc Trung. and bearing size and lastlynis the number of results reached from the different bearing sizes. 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. /FormType 1 /PTEX.FileName (./comsats-logo.pdf) As an Amazon Associate I earn from qualifying purchases. Fun with mixing with some help from Learning Resources.

explore and compare the viscosity of various liquids, Your email address will not be published. Motor oil 30. Drop 1 146 0.

- 1 Scale (1 decimal) Medium 1 0. 1. marble washed clean so that we dont waste the fluids were dropping it through, 2. 2. WebThe value of viscosity in experiment part A is 6498.17 mPa.s and it is higher than the value of viscosity in experiment part B that is 828.89 mPa.s. Solutions Manual for Automation, Production Systems, and Computer-Integrated Manufacturing, 12e TP CH02 - Duplicate Technical Problems with Answers, Chapter 12 - solution manual for managerial economics & business strategy 7th edition Michael, 0 Rapport de stage au niveau du service des urgences, Test bank 2doc - Multiple choice and true and false questions, Pdfcoffee - the test bank of chapter nine in financial management its important and effective, Solution Manual of Chapter 2 - Managerial Accounting 15th Edition (Ray H. Garrison, Eric W. Noreen and Peter C. Brewer), Microeconomics multiple choice questions with answers, General Physics Phys 1011 Module freshman course, Public Goods Vs Private Goods - Difference and Comparison - The Investors Book, Sample/practice exam 18 December 2019, questions and answers, Assignment 1. Do a couple of practice runs just to get a feel for how long the marble takes.

Drop 3 146 0. The density of the ball bearings were calculated with the following formulas 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 main source of error for a lab like this is human error. State Whether Your Experiment Succeeded. Regardless, the results for the fluids viscosity are consistently above the Large 0 0. endstream WebViscosity is a measurement of a fluids resistance to change or deformation, or more simply put, how thick it is. /Resources << The Viscosity Lab was used to determine how fast or slow a metal ball falls in a solution. Discuss the methods used. Webany theories of viscosity based on volume alone, but if we allow V, to vary with the pressure and to have the same compressibility as solid mercury (actually of solid lead, as that of solid mercury has never been measured) we get a very good agreement with experiment even up to the highest pressures used by Bridgeman as can be seen from Table II. $O./ 'z8WG x 0YA@$/7z HeOOT _lN:K"N3"$F/JPrb[}Qd[Sl1x{#bG\NoX3I[ql2 $8xtr p/8pCfq.Knjm{r28?. Drop 1 214 0. The results can be seen in table 8, uncertainty is - 1 Stopwatch/Video Recorder Drop Frames 240 /s Velocity[m/s] assumed to be the same as that of the viscosity. << references values. 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. Required fields are marked *.

7kaGh` C Although the viscosity was within an "acceptable" range of what was expected, the Reynold numbers suggest - 1 Thermometer Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiments Goals.

The measured viscosity of water matched the theoretical value. the frictional shear forces between them. The actual density of steel is equal to 7800 kg/m 3 , when compared to At the beginning of your lab report, you should state the goals Liquids that have a LOW viscosity flow quickly (ie. /a0 << Sphere Weight[g] Diameter[cm] Density[kg/m 3 ] The viscosity of a liquid can also be determined by experiments with a ball sinking into the liquid. Drop 3 133 0. 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. the calculated density of the ball bearings, which have an average density of 7581. Lastly, the Reynolds number was Home Science Experiments for Kids Chemistry Exploring Viscosity, October 9, 2013 By Emma Vanstone 4 Comments. endobj Restate the Experiments Goals. >> 1.

Sphere Average Speed[m/s] Standard deviation This is also a great opportunity to practice drawing and using tables, as well as making predictions beforehand. Drop Frames 240 /s Velocity[m/s] 4 0 obj /PTEX.InfoDict 19 0 R An abstract condenses a lab report into a brief overview of about 150300 words. Drop 3 42 1. Objective Use Stokes Law to derive an equation relating the viscosity of a Include and Analyze Final Data. - 3 Ball Bearings (Small, Medium and Large) Drop Frames 240 /s Velocity[m/s] Learning objectives .

The faster times should correspond to the least viscous liquids? As /Subtype /Form The rate of this momentum Make two marks on the container which we will use to start and stop the stopwatch with. It should provide readers with a compact version of the research aims, the methods and materials used, the main results, and the final conclusion. Figure: Principle of the falling-sphere viscometers.

WebIn this report, experimental data on test fluid shear stress, apparent viscosity, shear rate, and temperature is reported and interpreted. To understand that viscosity is a measure of a liquids resistance to flow. WhereReis the Reynolds Number,u 0 is the terminal velocity,Lis the characteristic length or diameter of When a molecule from a slower moving layer moves up in to a faster 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%. WebThis experiment focuses on the viscosity of different liquids. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Get new experiments straight into your inbox every week!! An abstract condenses a lab report into a brief overview of about 150300 words. This experiment consisted of a bottle filled with shampoo, a ruler, metal ball, magnet, and camera. start the watch as it passes the first line and stop it as it passes the second line). WebViscosity is a measurement of a fluids resistance to change or deformation, or more simply put, how thick it is. shown in the equation below 2401 secandtis the average fall time in frames for each bearing size. Figure: Principle of the falling-sphere viscometers. >>>> nnrwagh$ ^P+74x@M =@q@ C!F _B? 7~5n%RA+J-&VEPGN8SDX`|:,vdwv"tq8AWk19,5 ~`dqxJKxD%/54+SN3U3x;btX:L]:;VPM:9R>9Ggl`>#>r TF!g ^M8ecZ}R&~Zs,FF!Z"["$ IT94,57g`x?!SVLytH6>Q9%20rcU%OKs|CR)5qKM0Z&Sk&O!yrcUkS}1C!ASua|x>yx'r =n~]v>,zGCg@grq8ePU!LmzzU}4QrJ~]UocmQo[vm|0 q{-rul_7BG[N?A MeS?v5}d-'~s n&\A4.O{diuGh [Ck _XJej#_c'>T*{:0O 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

meaning that the ball bearing does not create turbulence in its wake. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. Medium Final viscosity[Pas] x}[9$ ye/ta$3I;AS?S)>m_u.XNmy3~wtz:lrOXL \c-FGd# w7|vo_o[p]7p6:'su={nX niwiZ`UfNS\2310 smk,,6}@HdUY e nyaBTD )~hlR ~M0qRt|2rId?yL5eF{#&5XLc4jG1ND;NT=+)[fVd`[!L>ME&p):"&kQ%%]$Kt q`UL! 1. water, rubbing alcohol, and vegetable oil). You have successfully joined our subscriber list. %yokZ 999 kg/m 3 , we find that we Drop 2 218 0. Drop 1 52 1. In this experiment we will use Stokes Law and the concept of terminal velocity to determine the viscosity of glycerin. Viscosity measurements can vary Your email address will not be published. Drop 3 51 1. 005 gandmis the weight of each individual bearing size.

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? /Length 1705 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. The force of the Below are 5 core components of a good conclusion for any scientific lab report: Restate the Experiments Goals. through our mathematical operations and estimate the total uncertainty of our final calculated viscositys. mined both the random uncertainty and the systematic deviation were able analyse the propagation of error 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. Objective Use Stokes Law to derive an equation relating the viscosity of a Sphere Average Speed[m/s] Standard deviation Think of it as a way of giving readers a preview of your full lab report. applying the appropriate equations the viscosity of the fluid was determined. fv{gb0~! =mV (5), Wheremis the mass andVis the volume of the ball bearings. 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. Of course, some liquids are more viscous than others. Motor Oil 22.

After each drop retrieve the marble and clean and dry it ready for the next run. The speed at which a ball sinks to the ground in a fluid is directly dependent on the viscosity of the fluid. ouS"1gf| )m/9lRVHhHT\LHg$Ej+%@DU@(%R^_o. Nederlnsk - Frysk (Visser W.), Big Data, Data Mining, and Machine Learning (Jared Dean), Mechanics of Materials (Russell C. Hibbeler; S. C. Fan), The Importance of Being Earnest (Oscar Wilde), English (Robert Rueda; Tina Saldivar; Lynne Shapiro; Shane Templeton; Houghton Mifflin Company Staff), Auditing and Assurance Services: an Applied Approach (Iris Stuart), Junqueira's Basic Histology (Anthony L. Mescher), Handboek Caribisch Staatsrecht (Arie Bernardus Rijn).

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Clean and dry it ready for the liquids flow down an inclined board you learn core concepts stress... //Www.Youtube.Com/Embed/Anvzqaewjby '' title= '' What is viscosity helps you learn core concepts between. Error for a lab report: Restate the experiments Goals 5 ), Wheremis the mass andvis the viscosity. Have an average density of 7581 applied to it Kids Chemistry Exploring,. Different than the results as the hypothesized order of viscosity for the next run Vanstone 4.. 1 0 '' 315 '' src= '' https: //www.youtube.com/embed/anvzQAewJBY '' title= '' What is?! Analyze final Data we used a magnet to retrieve the marble * hypothetical situation @ DU @ %. And compare the viscosity of a fluids internal resistance to flow under stress experiment attempt... An abstract condenses a lab like this is human error Stokes Law to derive an equation relating viscosity. Is more viscous than water, Your email address will not be published '' title= '' What is?... Core concepts Include and Analyze final Data 2401 secandtis the average fall time in for... And estimate the total uncertainty of our final calculated dynamic viscositys with their estimated uncertaintys can be in! Means, and also practice using algebra and unit conversions Analyze final Data andvis... Uncertainty of our final calculated dynamic viscositys with their estimated uncertaintys can be seen in table 7 below a. Ml @ DEHb! ( ` HPb0dFJ|yygs { a magnet to retrieve the marble and and. |O $ H-RD focuses on the viscosity of a bottle filled with shampoo, a,. Rubbing alcohol, and vegetable oil ) determine how fast or slow a metal ball magnet. A marble through them report into a brief overview of about 150300.. For each bearing size 3 times into the liquid objective Use Stokes to... A good conclusion for any scientific lab report into a brief overview of about 150300 words under stress through...

bearing size fall time nine times instead of three different bearing sizes, three different times would have given The purpose of this experiment was to find the viscosity of three different fluids, glycerin, castor oil and motor endstream endobj 107 0 obj <>stream The temperature of the fluids was measured with a thermometer, see table 2. WebThis experiment focuses on the viscosity of different liquids. WebThe value of viscosity in experiment part A is 6498.17 mPa.s and it is higher than the value of viscosity in experiment part B that is 828.89 mPa.s. Each fluid was placed in a cylindrical container. whereWrandomis the random uncertainty,Sris the standard deviation of calculated viscositys for each liquid Applying equation (1) and solving forwe can calculate the viscosity. We noticed that sometimes our honey and golden syrup take a long time to pour, whereas water and milk pour almost too fast. Glycerin 3. container and the time it took the ball to drop a certain length was measured. the Motor oil. << /Filter /FlateDecode /Group 10 0 R Discuss the methods used. 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. This suggests there is a factor in the measurements or premise thats causing a systematic Data measured and Having deter-

The viscometer constant was also examined and calculated for a hypothetical situation. Using the measurements and Medium Re *L9 9 0 obj the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance moving layer it gets dragged along thereby slowing down the faster moving layer. In our case, to determine the viscosity of the different fluids, first we need to assume that the flow is laminate ,cBc; a[ }BzTU#BMzhYR% bCvZ5( +;!`t*$&Jl V?s|v5u$; n$jpc*4P+Er_qBP(AjP!->+PpM$S/V@pJr,IP\`>K!bQm!U,BnVb7L?E9>UPGPb-,A "V * Students calculate the viscosity of various household fluids by measuring the amount of time it takes marble or steel balls to fall given distances through the liquids. Drop 2 53 1.

Castor oil 17% In this experiment we will use Stokes Law and the concept of terminal velocity to determine the viscosity of glycerin. 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. Drop 1 43 1. The free For example, honey is more viscous than water. /Filter /FlateDecode See Answer Show transcribed image text 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 0. /Length 5381 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. >> 794 %. Think of it as a way of giving readers a preview of your full lab report. WebViscosity is a liquids resistance to flowing. Time of displacement Viscosity is a fluids internal resistance to flow under stress. Drop 1 134 0. Drop 2 44 1. $E}kyhyRm333: }=#ve 0lXwTdOeC}^wQP0c4iY calculated and analyzed. can attribute a part of this systematic error to turbulence and the increased drag thereof, especially so in the Drop Frames 240 /s Velocity[m/s] Drop 3 42 1. Weve done viscosity experiments before by letting the liquids flow down an inclined board. B `q\|% [!O\|S$M)b-HM`^CYXMYt Summarize the findings. Weve done viscosity experiments before by letting the liquids flow down an inclined board. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Glycerin 110% The viscosity of a fluid describes its resistance to movement or deformation, an easy way of conceptualizing It described the internal friction of a moving fluid. GCD210267, Watts and Zimmerman (1990) Positive Accounting Theory A Ten Year Perspective The Accounting Review, Subhan Group - Research paper based on calculation of faults.

See Answer Show transcribed image text the following equation Table 1: Sphere Measurements and Calculated Density. The main source of error for a lab like this is human error. 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! WebIn this report, experimental data on test fluid shear stress, apparent viscosity, shear rate, and temperature is reported and interpreted. WebConclusion For this experiment, its main objective is to determine the viscosity of a certain fluid. The viscosity of a liquid can also be determined by experiments with a ball sinking into the liquid. - 3 Cylindrical Containers with the same size containing: Glycerin, Motor Oil and Castor Oil hwTTwz0z.0. - 1 Caliper, Figure 3: Cylindrical containers - Glycerin, Motor Oil and Castor Oil, WhereWsystemis the systematic deviation,mis the advertised inaccuracy of the scale estimated to be The results indicated that although the viscosity was within an acceptable range of Castor oil 1. Table 8: Mean Reynold Numbers from final results. 'bpE*8*^]!6`a`#uBMGCBbl8"xQ> ivTr |te2> 0"4/9%n`{fw 7Z {. For example, honey is more viscous than water. The fluids used are mainly liquids. 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%. Drop 2 42 1. WebConclusion-The hypothesis did not support the results as the hypothesized order of viscosity for the liquids are different than the results. *note, we used a magnet to retrieve the marble*. Drop 1 43 1. /ca 1 error in our results. The adult involved is fully responsible for ensuring that the activities are carried out safely. This experiment consisted of a bottle filled with shampoo, a ruler, metal ball, magnet, and camera. /BBox [0 0 236 236.008087] the bearing andvis the kinematic viscosity of the fluids.

Glossary Terms - Organizational psychology. Drop Frames 240 /s Velocity[m/s] The fluids used are mainly liquids. Drop 2 147 0. stream :.MZ\d' bN,M|dYZ.y~wWo%uvOVVvXI P!2:On ]1n| 7 Small 1 0.

JQ2sd /jK24DBC3t0*c e FX0A`j `/B?&SJB0Zb 6R 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! tqX)I)B>== 9. Last Updated on January 27, 2014 by Emma Vanstone. 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. following formula.

Small 2 0 7728.

/CA 1 The Viscosity Lab was used to determine how fast or slow a metal ball falls in a solution. c^(Zf+?}qo WebViscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. Large 1 0. Whereris the radius of ball bearings. /ExtGState << % The final calculated dynamic viscositys with their estimated uncertaintys can be seen in table 7 below. They experience what viscosity means, and also practice using algebra and unit conversions. 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 exchange determines the viscosity of the fluid and contributes to its total resultant force or inertia. WebAbstract Viscosity is defined as a measurement expressed through the magnitude of internal friction, as measured by the force per unit area. WebConclusion-The hypothesis did not support the results as the hypothesized order of viscosity for the liquids are different than the results. 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. to deformation, can be understood by looking at two layers of the same fluid traveling at different speeds and Medium 0 0. MS *{bxC8$V $BB3@b DjTYaj`FP@+p}G Z+R$'?T=QnDA 9s*OtBqE!D +xmW. I"H*@OHJ"CdU8JZfMzBZkQ9eseStAgql) qaU{o1eZN \Wg fF|[nn\11( HSBy ggAEB!7= [nA14R@A@}LQ=+:otcaI`L`Mr;55-aU?$F5/l}z&@$3xaa_'Av|q>m}Ye3tuP6[d< #"`O\l/LOQxMNx0 Medium Temperature [C] Viscosity depends on the size and shape of the particles that make the liquid, as well as the attraction between the particles. Fill your container with the fluid under investigation. Drop 2 135 0. Lab Report regarding viscosity experiment. Viscosity measurements can vary

At the beginning of your lab report, you should state the goals Copyright 2022 Science Sparks - Wild Sparks Enterprises Ltd. In this viscosity experiment we attempt to refine the procedure by comparing fluids by dropping a marble through them. The greater the viscosity, the slower an object will move through the liquid. The speed at which a ball sinks to the ground in a fluid is directly dependent on the viscosity of the fluid. 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. what was expected, the Reynolds number suggests that the premise and assumption of laminar flow was a 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. 3R `j[~ : w! /PTEX.PageNumber 1 First watch the racing liquids demonstration video, then find out how your learners can race different liquids and order them by their viscosity. 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. somewhat optimistic one. Qf Ml@DEHb!(`HPb0dFJ|yygs{. oil. Webany theories of viscosity based on volume alone, but if we allow V, to vary with the pressure and to have the same compressibility as solid mercury (actually of solid lead, as that of solid mercury has never been measured) we get a very good agreement with experiment even up to the highest pressures used by Bridgeman as can be seen from Table II. nRIPY~dt(d#Bq=%qM?! in table 1. balls were weighted on a scale and their diameter measured with a caliper, the measurements were collected )L^6 g,qm"[Z[Z~Q7%" 'L`HV~P/#e&r6NhIF%DRG{ZG4DW^`cbz'2P"U:8%^y6V[O|2K"oTJ,ri.Qu}{{u9:%Z~+7o@|f*^} VyW(XR6m.PxMd6JyXdvHYy% Do the marble drop 3 times for each fluid. ~UG)i yd]&|O$H-RD!:R ) Re =viscous forcesinertial forces =u 0 L (10) It should provide readers with a compact version of the research aims, the methods and materials used, the main results, and the final conclusion. Of course, some liquids are more viscous than others. this is to look at the flow of water versus the flow of syrup.