Introduction : This was our first lab, and the goal was to determine Young’s Modulus of elasticity of a thin wire by stretching. Young's modulus, denoted by the symbol 'Y' is defined or expressed as the ratio of tensile or compressive stress (σ) to the longitudinal strain (ε). Young’s modulus is a material property that determine s its stiffness and elasticity. The Young’s modulus for a material can be measured using the experiment illustrated in Figure 2. JO. Today's classroom version of the same experiment is typically performed using a laser beam as the source. To gain knowledge in use of the instrumentation to conduct the above investigation. Some of these are Bulk modulus and Shear modulus etc. INTRODUCTION: Young’s modulus is also known as tensile modulus. Measure the gradient of the straight portion of the graph and use this to calculate the Young modulus for the copper. (Potential engineering students will benefit greatly from this.). In solid mechanics, Young’s modulus is defines as the ratio of the longitudinal stress over longitudinal strain, in the range of elasticity the Hook’s law holds (stress is directly proportional to strain). Young’s Modulus. Save my name, email, and website in this browser for the next time I comment. Resources. Y = σ ε. “), then the responses to these questions might determine your grade point. 2. As soon as you have actually figured out where you want the lab report sample to go, the next step is to produce the overview of the product you’re going to fill in. 16-19. So a fiducial marker such as some tape can be used to help identify the original and extended lengths. Theory. Searle’s apparatus is used for the measurement of Young’s modulus. Note that values are often given in GPa (1 × 109 Pa). You can make measuring the Young modulus E a more interesting lab exercise than one which simply follows a recipe. We used the concept of Hooke’s Law, which states that in a certain range, the strain or deformation of a material is proportional to the stress applied to it. A measure of stiffness that is independent of the particular sample of a substance is the Young modulus E. Recall other examples you have already met of sample independent properties that only depend upon the substance itself: We need to correct k for sample shape and size (i.e. Weight hanger weight: 0 kg 0 4. Young’s modulus is the ratio of tensile stress to tensile strain. 0 Lab Report Young Modulus Matriculation – A lab report is basically how you describe what you’ve carried out in a lab experiment, what you discovered, and the outcomes. If at the lower end of wire of length ‘L’ and cross-sectional area of ‘A’ a load of ‘m’ is pressed and if the length increases by l, then; Explain why a long wire is most suitable for this experiment. Measure the gradient of the straight portion of the graph and use this to calculate the Young modulus for the copper. It was named for the 18th-century English physician and physicist Thomas Young. Books. 3. EXPERIMENT 1:Determination of Young’s modulus (η)of a given spring Debangshu Mukherjee BS.c Physics,1st year Chennai Mathematical Institute 12.09.2008 1 Aim of experiment We are going to determine the Young’s modulus of the material of a spring by recording its time period of oscillation when loaded by a certain weight. 12/03/2017 2 VIDEOS ... the experiment are avoided as the test wire and control wire would both expand by the same amount and the scale would adjust position There is a second hot-spot in the lower-right corner of the iFrame. A lab report sample is basically a beginning, middle, and end. helpful 120 13. In your laboratory report sample, you ought to also include references that can be helpful to the reader. Young's Modulus Experiment Lab report for Youngs Modulus Experiment. The writeup of this experiment is given in a pdf document . (It will probably snap!). Kinks should be removed from experimental wire before starting experiment. Young’s Modulus. In the experiment in the video above, we measured the Young’s modulus of some copper wire which does not extend very much. There is a small hot spot in the top-left corner. wooden or plastic rulers, spaghetti, glass fibres) the deflection y of a cantilever is often quite easy to measure and is directly related to its Young modulus E . Purpose This experiment is designed to determine Young’s modulus for a wire when it is stretched. It is a … In 1782, Italian scientist Giordano Riccati performed experiments leading to modern calculations of the modulus. Procedure. © 2021 IOP All rights reserved. Our use of materials characterises our history (Stone Age, Iron Age, etc.) Resources. For instance, if the trainee’s teacher requires him or her to write a thesis declaration (a research paper), you can put that here. The outcomes that you will supply must also follow the results that were obtained from the experiment. Note that in the set up above, the sample is at an angle to the ruler – a source of systematic error. (a–c) Snapshots of SEM images recorded during the in situ. Divide the class up into pairs and brainstorm possible methods of measuring the quantities above, including the pros and cons of their methods. YOU WILL NEED: A Young Modulus apparatus, copper wire (SWG 28 or thinner), a suitable fixing beam for the wires, two sets of slotted masses (each set 0 – 1 kg), a micrometer. It should also be total and useful. If the weight of the cantilever itself is mg, and the added load is Mg and L is the length of the cantilever (the distance from where the cantilever is supported to where the load is applied): Finish with a short plenary session to compare the pros and cons of the different experimental approaches. The Young modulus is often regarded as the quintessential material property, and students can learn to measure it. The present article thus emphasizes some experimental features of a classroom experiment that may assembled in a few minutes. It consists of two equal length wires that are attached to a rigid support. This includes the standard information about the experiment, such as the name of the experiment, the name of the researcher performing the experiment, the name of the group doing the experiment, the name of the chemical substance that is being evaluated, and the date of the experiment. If you are using a pre-made lab template, bear in mind to make sure that it is simple to read and that there are no grammar errors. Snapshots. and is calculated using the formula below: In your laboratory report sample, you ought to likewise include a chart of the data collected from the experiment, the charts utilized to summarize the data, and the outcomes obtained. and new... For 16-19 Method 5. Podcasts. The steel frame of an earthquake-resistant building has to be able to flex, but not too much . Video. Look at the definition: we need to measure load (easy), cross-sectional area A , original length x0 (so make it reasonably long), and extension Δ x . This experiment makes use of travelingmicroscope to measure elongation of the wire. You likewise need to include the variety of samples that were used and the number of times that they were used. It’s pretty important for materials scientists, too, so in this article I’m going to explain what elasticity means, how to calculate Young’s modulus, and why stiffness is so important. Use the Escape key on a keyboard (or comparable method) to exit from full-screen mode. A worksheet to enable students to analyse experimental data from the Young’s Modulus experiment. It consists of two metal frames. Part 1: To investigate the relationship between... View more. Theory. The formula of young’s modulus is stress by strain. Sheet Music. Method For the procedure, see lab manual (PC142 Lab Manual, Winter 2017). Each frame is suspended from two identical wires, one being an ’experimental wire’ and the other being an ‘auxiliary wire’. The Young Modulus is also known as Young's Modulus or the elastic modulus or tensile modulus.. Then you’re ready to write. The same value can be used to get a single average value of Young’s modulus Y. It looks like the force-extension graph shown earlier, but this graph will be valid for ANY sample of copper ⇒ O-P on the graph represents the range of tensile stree for which the copper obeys Hooke's law. Young’s modulus–the most common type of elastic modulus, seems to be the most important material property for mechanical engineers. They are used to summarize and interpret the data gathered. Method For the procedure, see lab manual (PC142 Lab Manual, Winter 2017). Please consider supporting us by disabling your ad blocker. Practical Activity Saved. There’s generally a very first page with an outline of the material you’ll require to complete on each area of the report, along with the date and time of the laboratory test. It is most commonly used by physicists to determine strain, a measurement of how a material, responds to a pressure, such as being squeezed or stretched. Your laboratory report sample doesn’t need to be perfect. The Young's Double Slit Experiment Interactive is shown in the iFrame below. Questions 1. Cite this Simulator: Developed by Amrita Vishwa Vidyapeetham & CDAC Mumbai. The very first thing that you need to do is to choose what kind of information you require to consist of in your great laboratory report sample. Episode 228-4: Measuring the stiffness of a material (Word, 59 KB), Episode 228-5: Stress–strain graph for mild steel (Word, 68 KB). Young’s modulus is named after Thomas Young,19th century,British scientist. Give different groups different materials, cut to different sizes, for example: metal wires (copper, manganin, constantan etc), nylon (fishing line), human hair (attach in a loop using Sellotape), rubber. English. Theory: Young’s modulus means the ratio of longitudinal stress and longitudinal strain within elastic limit. Young's Modulus Statics Experiment Full Report. This likewise includes the laboratory’s identity and address, along with the date of its closure. 56 Resources. Rigid bodies do not bend, stretch or squeeze when forces act on them. The experimentally determined value for Young’s Modulus is compared to the theoretical values of Young’s Modulus for different types of wires and therefore the material of the wire is concluded from that. Searle’s apparatus consists of two metal frames F1 and F2. Apparatus for Measuring Young’s Modulus Apparatus for Measuring Young’s Modulus . Laboratory reports are used to explain the research study results. According to various experimental observations and results, the magnitude of the strain produced in a given material is the same irrespective of the fact whether the stress is tensile or compressive. Chai Hao. YOUNG’S MODULUS PRACTICAL OBJECTIVE • To determine the Young’s Modulus of a steel wire using a graphical method. Writing a great laboratory report sample is not as tough as it appears, however there are still some things that need to be born in mind. Feedback. Lots of teachers, students, and trainers choose to have an outline (the first page), a conclusion (the last page), and a summary (one or 2 pages after the conclusion). The Young's modulus of the thick cuticle layer and its surrounding was set to a value of 625 kPa, as determined previously for these layers by Scholz et al. The aim of this experiment is to determine the Young modulus for a copper wire. The experimental wire is loaded with a measured weight to create an elongation in it. E.g. The reference wire supports a vernier scale, which will measure the extension of the test wire. Aim 3. All real materials are Elastic and deform to some extent. There are two components to the assessment of practical work: Questions in the... For 16-19 Simulator. (Scholz et al., 2008). If your teacher is asking you to compose a lab report, it’s an excellent concept to check out over this page, too. It is denoted by Y. Young’s Modulus or Elastic Modulus or Tensile Modulus, is the measurement of mechanical properties of linear elastic solids like rods, wires, etc. 3. You can also read some tips on how to compose a great report in the following area. Description; Documentation; Info; Recommended; Used in following experiment; Measuring apparatus for investigating the elastic deformation of rods of flat geome-try and for determining the modulus of elasticity. But the value of Young’s Modulus is mostly used. Figure 3. Our Objective. 0 m m 2, find its Young modulus. Add to wish list In stock Ask a question. This is the last page of any laboratory report. There is a small hot spot in the top-left corner. Documents. In its fundamental mode, the wire vibrates at 2 2 0 H z. Feedback. If the area of cross section of the wire is 1. 14-16. Episode 228-3: Materials database (Word, 115 KB). Lab Report Essentials is very essential to any trainee who’s working in the lab. Simulator. For the horizontal set up: bridges over the sample to trap the flying ends, should the sample snap. The experiment consists of two long straight wires of the same length and equal radius, suspended side by side from a fixed rigid support. Animation. They should be legible and must be provided in a clear and concise manner. Set up (diagram or description) 4. Academic year. The reference wire and test wire made of the selected material are hung from the ceiling. The aim of this experiment is to determine the Young modulus for a copper wire. In this experiment I am going to determine the young’s modulus (E) of wood from the period of oscillation of a loaded wooden ruler. For determining Young's modulus of a wire under tension is shown in the figure above using a typical experimental arrangement. Young’s Modulus Experiment – YouTube – Lab Report Young Modulus Matriculation is free lab report sample. Animation. Research a value for the Young modulus of copper and comment on your result. Experiment: Determination of Young’s Modulus. For samples too stiff to extend easily (e.g. Young’s modulus, used as a numerical constant. Young's Modulus. length and surface area). Young's modulus is given by the gradient of the line in a stress-strain plot. Lab Report Young Modulus Matriculation – A lab report is basically how you describe what you’ve carried out in a lab experiment, what you discovered, and the outcomes. Audiobooks. Episode 228-7: Calculations on stress, strain and the Young modulus (Word, 59 KB), Episode 228-8: Stress, strain and the Young modulus (Word, 26 KB). To double the length of a iron wire having 0. Illuminate the pointer etc to produce a magnified shadow of the movement, use a lever system to amplify or diminish the load and provide a pointer. 4 Resources. Information about the use of precision instruments (micrometer screw gauge, Vernier callipers and Vernier microscope). Extension – won’t it be quite small? Give your students a table and ask them to find values of the Young modulus. Another thing is to make sure that the language utilized is exact, accurate and suitable. Nvis 6040 Young`s Modulus Setup is a complete system used to determine Young`s Modulus of Elasticity of materials. Related documents. The experimentally determined value for Young’s Modulus is compared to the theoretical values of Young’s Modulus for different types of wires and therefore the material of the wire is concluded from that. This is a well-known experiment to measure Young’s modulus of elasticity of wires. Risk Assessment 6. Lab Report Essentials is very essential to any trainee who’s working in the lab. There is an alternative experiment to measure Young's modulus. 2. SC040092), No units (because it’s a ratio of two lengths), Discussion: Defining the Young modulus (20 minutes), Student activity: Studying data (20 minutes), Student experiment: Measuring the Young modulus (60 minutes), Student experiment: An alternative approach using a cantilever (30 minutes), Discussion: Comparing experimental approaches (10 minutes), Student questions: Involving the Young modulus (30 minutes), Con: may affect the sample; only moves a small distance, Con: need to convert angular measure to linear measure, introduces friction. Better understanding about the use of materials characterises our history ( Stone Age, Iron Age, Iron Age Iron. Be perfect supported from same rigid support real materials are elastic and deform to some.! Its stiffness and elasticity laser beam as the force per unit area ; strain is measure... ; 0.5 m. Spirit level instrumentation to conduct the above investigation this experiment is typically performed using a beam... 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