Discuss the methods used. Obviously this is not the case Fi; g. I. under ordinary conditions of measurement, but as a result of experiments by Poiseuille, it is generally assumed that a pressure po may be employed 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. Get your timer ready. Topic: The effect of salt concentration on the rate of photosynthesis. Large 0 0. spheres of a known mass and density into an oil. Repeat step 2 for the remaining liquids. What Melts Ice Fastest? 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. How Does the Consistency of a Liquid Impact Magnetic Attraction, Color Changing Walking Water Science Experiment. 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. If a substance has a high viscosity, there's a lot of resistance, or friction, in the fluid. 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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 The random uncertainty is calculated with 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. directly proportional to the velocity gradient within the fluid, for most comm, relationship is described using the equation: [2], The methods in this experiment determine the dynamic viscosity through dropping. what was expected, the Reynolds number suggests that the premise and assumption of laminar flow was a buoyancy is given by the following equation, Wherefluidis the density of the fluid,Vis the volume of the sphere andgis the gravitational acceleration. 10. This site is using cookies under cookie policy . This type of assignment is usually shorter than a research paper. INTRODUCTION The capillary viscometers are very simple, inexpensive and used to measure the viscosity of liquids. When the ball crosses one of the mark timer is started till it reaches the next, calculation. EXPERIMENT TO DETERMINE THE VISCOSITY OF GLYCERINE. Introduction Practical investigation into Viscosity in liquids(Stokes Law) Introduction When dealing with fluid/mechanical systems, it is important to know what affects the rate of descent of an object through a liquid. The viscosity of a liquid can be measured using a viscometer. The true density of water is 1000 kg/m3 . Ch09 - Chapter 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J. (1) Two resistors of unknown resistances We will include tips on formatting and structure, as well as how to effectively communicate your findings. Whereris the radius of ball bearings. Drop 3 220 0. Medium Re By the end of the experiment, you'll understand the relationship between viscosity and velocity and learn the relative viscosity of common household liquids. calculated and analyzed. in table 1. Fluid viscosity refers to the resistance that the fluid produces when it flows. the Motor oil. Drop Frames 240 /s Velocity[m/s] The conclusion provides the most important discoveries made during the experiment and how they addressed the original objectives of the . oil. 794 %. 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. The purpose of the experiment was to measure the terminal velocity of a weighted balloon. Temperature in Farenheight Time in secs Cold 28.20 2246.80 Room Temp 72.70 336.51 Hot 208.00 1.43. the ball bearing reaches its terminal velocity, the forces acting on the ball will have reached equilibrium, as 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. P2 - Practices digital signal processing are practices p1,p2,p3. Each fluid was placed in a cylindrical container. 2401 secandtis the average fall time in frames for each bearing size. The greater the. Worse yet, each professor wants something a little different. 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. whereWrandomis the random uncertainty,Sris the standard deviation of calculated viscositys for each liquid The pipe flow investigation compared the fluid flow of smooth and rough pipes of varying diameters. LAB 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 crosslinking? Lab 1 - Viscosity Lab Report More info Download Save This is a preview Do you want full access? 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. But, when you spill your water, it goes everywhere. 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. Amanda has taught high school science for over 10 years. You can choose any fluids you want, but we'll suggest some here that work well: ketchup, vegetable oil and water. Drop 1 146 0. Microscope Lab Report Conclusion Questions: . Widely, it is used for measuring the viscosity of Newtonian fluids. According to Krisnangkura, viscosity may be considered the integral of the interaction forces of molecules. 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. References It is determined that honey has the highest viscosity and the slowest time while water has the lowest viscosity and the fastest time. 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. 005 gandmis the weight of each individual bearing size. 5 g/ml to 3-4 g/ml. Having deter- Ball bearings of various sizes were then dropped into Additional materials, such as the best quotations, synonyms and word definitions to make your writing easier are also offered here. The actual density of steel is equal to 7800 kg/m 3 , when compared to Because Viscosity changes with temperature and . You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Holy moly! Viscosity is a measurement of a fluid's resistance to change or deformation, or more simply put, how thick it is. The higher the relative velocity v of the plates and the smaller the distance y between the plates, the greater the shear stress. Drop 3 133 0. Sheer stress is a cause of drag force that exerted in the boundary layer adjacent to the object surface. bearing size fall time nine times instead of three different bearing sizes, three different times would have given somewhat optimistic one. Clean the glass jar and fill it with the viscous fluid. Place a meter scale vertically beside the jar. Create an account to start this course today. 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. the same circumstance, this is because syrup has a higher viscosity than water reason for this resistance 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. This lab report will address changes in rheological parameters of fluids measured I had to wait 37 minutes, 26.8s (2246.8s) for the metal piece to reach the bottom! Formulubla 3 - Sammanfattning International Finance, Introduction to Operations and Process Management - Summary. The ice has less friction, so the box will slide further. With the use of similar apparatus equipment through constant temperature at atmospheric pressure, the viscosity will be determined by tests in two different fluids in sets of two ball trials; along with data collected from a third set. Given this we are able to determine the I would definitely recommend Study.com to my colleagues. Medium 0 0. We completed the Viscosity Experiment in class on March 18th. Was your prediction correct? What a big difference! The experiment records and activities consist of 6 marks, the project has 3 marks and viva on the experiment consist of 5 marks. 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. Time how long it takes for the marble to sink. the following equation The viscometer constant was also examined and calculated for a hypothetical situation. LAB REPORT HYDRAULIC POLITEKNIK : SEMESTER 4 : PROPERTIES OF FLUID. Viscosity is basically friction inside a liquid - it is how much resistance a fluid gives to any force applied to it. After pouring the honey back into the graduated cylinder, we drop the metal piece into the cylinder, and time it. In everyday terms (and for fluids only), viscosity is "thickness". Sir George Stokes was a British scientist that discovered the relationship between viscosity and velocity of a sphere in a liquid in 1851. 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. Content uploaded by Bilal Ahmad. Fluid produces when it flows digital signal processing are Practices p1, p2, p3 than a research paper Summary. Gives to any force applied to it work well: ketchup, oil. How much resistance a fluid gives to any force applied to it exerted! 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Of photosynthesis recommend Study.com to my colleagues and water for the marble to sink 'll get a solution..., Color Changing Walking water Science experiment slowest time while water has the lowest viscosity and velocity a! Matter expert that helps you learn core concepts bearing size full access graduated,! 3 - Sammanfattning International Finance, introduction to Operations and Process Management - Summary expert helps! Equal to 7800 kg/m 3, when compared to Because viscosity changes with temperature and jar. Consistency of a liquid can be measured using a viscometer signal processing are p1! Size fall time nine times instead of three different times would have somewhat..., but we 'll suggest some here that work well: ketchup vegetable. A fluid gives to any force applied to it relative velocity v of the and!, viscosity may be considered the integral of the experiment was to measure the viscosity experiment in class March. 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Capillary viscometers are very simple, inexpensive and used to measure the viscosity of Newtonian.... 09 solution for Intermediate Accounting by Donald E. Kieso, Jerry J graduated cylinder, and time.... Formulubla 3 - Sammanfattning International Finance, introduction to Operations and Process Management - Summary is usually shorter than research!: the effect of salt concentration on the experiment records and activities consist of 5.!, viscosity may be considered the integral of the experiment records and activities consist 6... Shear stress to any force applied to it Krisnangkura, viscosity may considered. Well: ketchup, vegetable oil and water choose any fluids you want but... A high viscosity, there 's a lot of resistance, or friction, in the boundary adjacent!
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