Hookes law lab report example topics and well written. Apply your understanding of hooke s law to noncanonical situations interpret a graph that does not represent a simple mathematical function explain the limits of the validity of hooke s law materialsprocedure. A reconsideration of the conclusions reached from these data is made. This is hookes law or the linear law of forces, where the proportionality constant d, which is a general magnitude of reference, is called the spring constant in the case of a helical spring.
Objective the objective of this lab is to show that the response of a spring when an external agent changes its equilibrium length by x can be described by hookes law, f. Our present interest is in whether or not the data will fit on a linear trend line. Because the force is proportional to displacement of the spring from its equilibrium position, a mass attached to the spring will undergo simple harmonic motion. Additional instructions are included below to guide you through the experiment, and you can add your own steps. Hookes law springs force potential energy phet interactive. Hookes law and a simple spring 09 24 2010 joe student ima pigg hedda lettuce. Within the experiment, in the first two parts we will determine the spring constant of a spring using two different methods. The spring i hooke s law and oscillations objectives. A formal lab report should include a title page like this one, with all of the appropriate information a descriptive title, your name, the course title, the date, and an abstract. The spring wire had circular section with a diameter of 0. Follow up lesson after completing practical lesson investigating forceextension. It is essential that the theory section be written for the particular audience for. Proves hooke s law and the basic rules of spring design. In this investigation you will measure force from the spring, and spring deformation spring deflection using the force and position sensors on the smart cart.
Here f is the restoring force or the force exerted by the spring on the external agent and k is a. Physics lab report 2 hookes law and simple harmonic. Therefore, in this experiment i hypothesize that the extension produced by the spring will increase as more weights are added. How to write a conclusion and an evaluation for an experiment. Record the position with the 50 gram mass holder in the spreadsheet. Model to demonstrate hookes law and illustrate that physiological phenomena, such as lengthtension. This experiment is aimed to investigate the relationship between the mass that is being slotted at the end of spring and the time taken for the spring to make a 20 complete oscillations. A definition of hookes law is applied and investigated, looking at typical questions asked about the commonly assessed practical. The springs are stretched, separately, by a force that is gradually increased from zero up to a. A spring is an elastic object that is used to store mechanical energy. In a supplementary problem the spring constants should be determined from the graph and these results should be compared with the nominal values for the. Hooke s law says that the restoring force f produced by the spring is proportional to the distance by which the spring has been lengthened x. For the first spring, the results obtained are not very accurate due to the sources of errors identified above.
The graph shown was plotted in an experiment on a metal wire. The download includes printable resources, powerpoint and everything else required to deliver the lesson. After completing the experiment, prepare a full report on the experiment and its results. Describe in words from their experiences how the force applied by a spring relates to the springs extension relate their experiment to a class discussion of hookes law. To find the force constant of a helical spring by plotting graph between load and extension. Winner of the standing ovation award for best powerpoint templates from presentations magazine. In this experiment, students use a high resolution force sensor to measure the force exerted to either compress or. F is the force applied to an elastic material x is the length of extension or compression of the same material k is the constant of proportionality referred to as the spring constant.
The figure shows the stable condition of the spring when no load is applied, the condition of the spring when elongated to an amount x under the load of 1 n, the condition of the spring elongated to 2x under the influence of load 2 n. Hookes law relates the stretching force and extension produced. We also present an adequate methodology to develop the analysis of graphics that students will obtain in a laboratory when they follow the new. Hookes law in the diagram below is shown a block attached to a spring. Jacobs woodberry forest school woodberry forest, va 22989 lab objectives after the first weeks experiment, students will be able to. Example excel spreadsheet for hookes law experiment. Fke, where k is the constant of proportionality called spring constant. In the following experiment ten undergraduates produced estimates of imagined elongation of springs with different combinations of values of l. The spring i hookes law and oscillations objectives. Even though i repeated my measurements each 3 times it would have been better to use 50g weights because i would have had more measurements and would have been easier to evaluate my results. Kepler s first law the path of each planet around the sun is an ellipse with the sun at one of its focus kepler s third law the square of the period of a planetary orbital motion is proportional to the cube of the average distance i. A variety of compression springs are included to enable students to learn about spring rates. Hooke s law is used to determined the restorative force or the amount of elasticity. Hookes law states that if a force f, is applied to the opposite end of a material holded on, parallel to the length, then in general the material is either compressed or stretched by distance x.
Hooke s law physics, basic introduction, restoring force, spring constant. The students should be familiar with the connection between masses and weight force from experiment me 2. Hookes law states that the force needed to stretch the elastic material is proportional to the extension of the material. However, this method will add an additional step to the experiment. Sep 24, 2017 from the experiment performed above, it can be concluded that the hookes law holds true for a metal spring. It was concluded that a rubber band did not obey hookes law. The spring used in a different experiment has a spring constant of 40 nkg.
Hookes law helps explain the first parts of this experiment. Kongregate free online game hooke s law after discovering kongregate s shootorials exceedingly late, i made this simple action game. Statement of hooke s lawexperimental methodtable for students to fill inquestions to check students understanding. Hookes law experiment pawel kostkowski psk1g14 november 14, 2014 i am aware of the requirements of good academic practice and the potential penalties for any breaches. To verify that this behavior is accurately described by hooks law.
This elastic behavior of springs can be explained through hookes law and formula 1. That relationship was formalized by robert hooke in 1678 hooke s law. Hookes law lab introduction the objective of the experiment was to investigate rubber bands follow hookes law. Hooke s law is expressed in the equation f kx, in which k is the spring constant and x is the displacement. Commonly, a hookes law experiment is conducted by adding increasing masses to a spring and recording the cumulative stretch elongation of the spring. In position b a force f is used to compress the spring by a length equal to. Hookes law states that the extension produced by the spring is directly proportional to the tension force applied to it. In the following experiment ten undergraduates produced estimates of imagined. Dear readers, recently i had an opportunity to take part in the hookes law experiment. Compression springs obey hookes law also, but are designed to be compressed rather than extended. If hooke s law is correct, then, the graph of force versus stretch will be a. Thus, the experiments indicate that prima facie a linear theory of elasticity such as hooke s law does not obtain because of the complicated form of the stressstrain curves. Civl 3322 mech 3322 hookes law university of memphis.
As the stretch increases, the force increases, and it is a constant increase. In this note we propose an alternative approach to the experimental study of hookes law that takes into account the variation of the elastic constant as a function of the initial length of the spring. This page has the class period, the title of the experiment, your name, your lab partners names and the date the experiment was performed. The first part of this experiment is designed to verify hooke s law.
Hookes law might also be expressed with regard to strain and stress. A conclusion from hookes law experiment by bianca abbate. However, and despite the fact that many papers have been written on this topic, and. Hookes law experiment hookes law experiment and analysis. Kongregate free online game hooke s law after discovering kongregates shootorials exceedingly late, i made this simple action game. If you measure how a spring stretches extends its length as you apply increasing force and plot extension e against force f. At equilibrium, the spring is under two forces, the restoring force that proportional to the. Stress is the force on unit areas within a substance that develops as an effect of the applied force.
In this experiment, the stretch of a spring changes as the force applied on the spring changes. The relationship of this can be best explained through the equation. A formal lab report should include a title page like this one, with all of the. You are to determine whether the rubber band you are given obeys hooke s law. Mar 21, 2017 this is the hooke s law experiment performed at qatar university in the physics 192 lab. Hookes law lab nathan venger experiment 11 hookes law. In fact, the use of springs to demonstrate the hookes law is an integral part of every elementary physics lab. In fact, the use of springs to demonstrate the hooke s law is an integral part of every elementary physics lab.
Hookes law is a law of physics that states that the force f needed to extend or compress a spring by some distance x scales linearly with respect to that distancethat is, where k is a constant factor characteristic of the spring i. Introduction there are many types of potential energy, such as gravitational potential and chemical potential energy. Aug 04, 2017 hooke s law was established in the year 1660 by the scientist robert hooke. Relate force and the distance a spring is stretched. The experiment on the hookes law will help to determine the behaviour of three different elastic materials, and help to investigate the differences of their behaviour around their elastic regions. Within the elastic region of the stressstrain diagram, stress is linearly proportional to strain. Procedure in this lab, you will observe a mass on a spring and, from this, determine the value of k for that spring. In equation form, hooke s law looks like equation 1. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Links for the software download are listed on the last page of the lab worksheet. It is often represented using the following mathematical equation. A powerpoint presentation for a complete 1 hour lesson on hooke s law and the experiment to verify the equation fkx.
Ee is known as hookes law and is an example of a constitutive law. This is because the extension produced by the spring is directly proportional to the force applied on it. Hookes law experiment consider a spring with load application as shown in the figure. Conservation of angular momentum keplers second law equal areas in equal time. Dec 08, 2015 hookes law describes the elastic properties of substances in the scope where displacement and the force are proportional.
The way in which an object deforms depends on its dimensions, the material it is made of, the size of the force and direction of the force. How are force and displacement related when stretching a spring. Students can experiment with a single spring, springs in series or in parallel. Hookes law utk department of physics and astronomy. Hooke s law is also known as hooke s law of elasticity as it explains the elastic behavior of the materials. Researched and wrote papers on geometry, snowflakes, heat, astronomy, fossils, air pumps, light, watches, telescopes and silkwormsamong other things.
The property is described by an equation now known as hooke s law. In symbols, f kx, where f is the force, x is the stretch, and k is a constant of proportionality. After completing the experiment, prepare a full report on the experiment. Doing so made it possible for there to be lines of best fit and for the lines to go through zero. It states that for a helical spring or any other elastic material, extension is directly proportional to the stretching force,provided elastic limit is not exceeded i. Hookes law lab report mass correlation and dependence. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Hooke s law says that the stretch of a spring is directly proportional to the applied force. A formal lab report should include a title page like this one, with all of the appropriate. This is part of my forces unit, but could be used as a standalone lesson or incorporated into a preexisting unit. Hookes law applies essentially to onedimensional deformations, but it can be extended to more general threedimensional deformations by the. Apply your understanding of hookes law to noncanonical situations interpret a graph that does not represent a simple mathematical function explain the limits of the validity of hookes law materialsprocedure.
We were examining the effect of exerting force on the specific. Hookes law was one of the few things he was popularly credited with creating. This experiment is aimed to investigate the relationship between the mass that is being slotted at the end of spring and the time taken for the spring to. Hooke s law in the diagram below is shown a block attached to a spring. Procedure in this lab, you will observe a mass on a spring and.716 14 888 812 766 775 690 1294 913 583 1200 1403 235 905 198 1338 408 821 1340 1148 1269 872 1432 1274 795 1021 868 958 75 846 5 969 1055 1331 1208 1155 615 890 982 899 1479