The long pendulum arm and a small swing about a small angle help in the approximation of the. Halliday, resnick, walker ch 8, 14 as needed pendulum, and definitions of period, amplitude play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, the strength of gravity, and the amplitude of the swing. Equipment and setup for this experiment you will need a ti calculator with the vernier physics program loaded, a cbl unit, a motion detector, and a pendulum. The pendulum 1 phy3 section 01 temiloluwa alao experiment 01. Simple pendulum lab report phys 215 physics laboratory i.
Using a simple pendulum the acceleration due to gravity in salt lake city, utah. Investigative science pendulum lab tuesday november 05. The mass of the string is much less than the mass of the bob. Open an excel data sheet and the loggerpro file in the physics 40 lab 6 pendulum folder. An experimental pendulum is suspended successively about several axes at different points along its length and the period about each axis is observed. In the case of our lab, the monofilament fishing line we will use is. Have students sketch the results on the axes provided in the student lab report. The pendulum abstract the goal of this experiment was to determine the effect of mass and length on the period of oscillation of a simple pendulum. I will be investigating the effect of the length of a pendulums string on the time for the period of that pendulum. Experiment 4 the simple pendulum msu pa welcome page. A compound pendulum is a rigid body swinging in a vertical plane about any horizontal axis. Overall, our graph is sound in the way that it depicts the data, showing the relationship varying with a very clear constant value. It follows then that a long pendulum has a greater period than a shorter pendulum.
We will apply this error analysis to a precise measurement of the gravitational acceleration, g. Functions experiment pendulum introduction equipment and setup. The purpose of this lab is to determine what variable affects the period of a pendulum. The purpose of this experiment is to introduce you to the scientific method by investigating the behavior of a very familiar and apparently simple apparatus, the simple pendulum. In truth according to the equation below it should be massless. Investigative science pendulum lab tuesday november 05 20 perry high school mr. Investigating period of a pendulum rachel goldstein brandon flores, daniel macrae, michelle. Using a photogate to measure the period, we varied the pendulum mass for a fixed length, and varied the pendulum length for a fixed mass. Apr 04, 2019 simple pendulum lab report and simple pendulum lab report the perfect combination. Introduction a simple pendulum consists of a point mass suspended at the end of a cord of zero mass.
Data section includes a graphic clearly labeling the three locations along the trajectory which were analyzed. Investigating the effect of string length on pendulum period. Using a simple pendulum the acceleration due to gravity in salt lake city, utah, usa was found to be 9. Our experiment may be similar to one you have done in high school, however. In this lab we will establish the relationship between the period and the length of the pendulum by measuring the period for di ering lengths. The length of the pendulum is the independent variable and should be plotted on the horizontal axis or abscissa x axis. Pendulum bob and string, pendulum clamp, aluminum pole, large clamp. The variables we consider are mass, length of the pendulum, and angle of initial dislocation.
To study the properties of a compound pendulum, and to determine the acceleration due to gravity by the use of such a pendulum. As the double pendulum loses energy, the transition from chaotic to periodic motion should be graphically dramatic. The thin string used and a large mass reduces frictional effects and air drag. Simple pendulum lab report and simple pendulum lab report the perfect combination. Vpl lab the pendulum 2 rev 121918 as you work through a lab youll be asked to take data from the apparatus, sketch graphs, create graphs with grapher, perform calculations, etc.
A simple pendulum consists of a mass m hanging at the end of a string of. A stationary pendulum has its string in a vertical position with the bob hanging straight down. Determining the acceleration due to gravity with a simple pendulum. Lab report 1 the simple pendulum free download as word doc.
Are your results consistent with the hypothesis that the period of a pendulum is independent of its amplitude of oscillation. Simple pendulum purpose the purpose of this experiment is to study how the period of a pendulum depends on length, mass, and amplitude of the swing. You will need to open a word document for the analysis part of your group lab report. The simple pendulum department of physics and astronomy. The pendulum 1 introduction instructional physics lab. Weigh the pendulum on the platform balance and record its mass m.
Oct 27, 2019 the pendulum was released from \90\ and its period was measured by filming the pendulum with a cellphone camera and using the phones builtin time. The experiment was carried out to show that the mass of the bob has no effect on the period of the oscillation. Energy of a pendulum lab included, labeled and organized all parts of the lab report. A few suggestions are made for extensions such as introducing motion along more. For our final lab of associated with physics i, we will dissect the motions of a mass on a spri. The objective of the experiment was to show that the period of oscillation for a pendulum is independent of the mass of the bob. Ive taken inspiration from this report to conduct my own for my first year lab project at uni, who can i reference this too. Lab report 1 the simple pendulum pendulum uncertainty scribd. The %difference data in your data table will give you an indication of the answer to that question.
Using a photogate to measure the period, we varied the. The pendulum was released from \90\ and its period was measured by filming the pendulum with a cellphone camera and using the phones builtin time. Set up the pendulum and probes as shown by your instructor. Youll want to record your answers in this lab report which youll submit for grading. When the length of a pendulum is increased, the frequency increases, decreases. When the mass is twisted about the axis of the wire, the wire exerts a torque on the mass, tending to rotate it back to its original position. Theory a simple pendulum is an idealized model consisting of a point mass sometimes called a pendulum bob suspended by a massless unstretchable string. It is so regular, in fact, that for many years the pendulum was the heart of clocks used in. To conserve paper on the lab and also because i believe that further investigation would have. The simple pendulum is a favorite introductory exercise because galileos experiments on pendulums in the early 1600s are usually regarded as the beginning of experimental physics.
A simple pendulum consists of a small bob suspended by a light massless string of length l. Before coming to lab, you should visit the following web. This lab tests the effects of different lengths of string on the period of a pendulum swing. Record these lengths opposite the corresponding periods. Dont just write down the answers, but explain how you got them. Example of excel spreadsheet for recording and analyzing data. The model was constructed with the square of the period of oscillations in the small angle approximation being proportional to the length of the pendulum. On the back of this sheet, put your pencil in one spot at the top of the page and move. The model was supported by the data using a linear t with chisquared. How would you adjust the pendulum of a grandfather clock if it were running too slow.
Ding 2 i will be investigating the effect of the length of a pendulums string on the time for the period of that pendulum. A characteristic property of any pendulum is its period, p. Doc the simple pendulumlab report sohaib alam academia. Given my previous knowledge, i know that a pendulum behaves in an oscillating manner, meaning that the acceleration is always proportional to the negative distance. Determining the acceleration due to gravity with a simple. The linear displacement from equilibrium is, the length of the arc. The simple pendulum laboratory report best lab reports online abstract the pendulum method is used for determination of the acceleration of gravity g. Investigative science pendulum lab tuesday november 05 20.
For instance, suppose you need to run your euler integrator with 10 distinct timesteps, then plot a graph of the time collection. Determining the acceleration due to gravity with a simple pendulum your name advanced undergraduate lab, department of physics and astronomy, university of utah, salt lake city, utah 84112 this is an example of a lab report associated with obtaining the acceleration due to gravity g and applying mathematical models. Jun 26, 2016 remove the pendulum from its support and with a meter stick preferably one equipped with caliper jaws measure the distances s1, s2, etc. Simple pendulum introduction simple pendulum a simple pendulum consists of a large mass bob suspended by a light string from a rigid support figure 1. The time it takes to complete one vibration is called the period. It will be up to each group to first observe the pendulum, then develop hypotheses concerning which variables will affect the periodthat is, which variables will change the.
College level formal lab report on the use of a simple pendulum. A simple pendulum consists of a bob a spherical mass hung from a fixture by a very light string of length l. In order to minimize the uncertainty in the period, we measured the time for the pendulum to make \20\ oscillations, and divided that time by \20\. Your lab report for this experiment should have the following sections. Our experiment may be similar to one you have done in high school, however, the mathematical analysis will be more. Sample lab procedure and report the simple pendulum in this laboratory, you will investigate the effects of a few different physical variables on the period of a simple pendulum. String, pendulum bob, meter stick, computer with uli interface, and a photogate. The torsional pendulum and moment of inertia introduction a torsional pendulum, or torsional oscillator, consists of a disklike mass suspended from a thin rod or wire. In this experiment, we investigate the properties of a simple pendulum. Graph the period of the pendulum as a function of its length using the chart feature of excel. Pendulum lab this lab tested which factors aect a pendulum s period the results show that string length signicantly aecrs the. By conducting a series of controlled experiments with the pendulum, you can determine how each of these quantities affects the period. A simple pendulum consists of a mass m hanging on the end of light string.
Simple pendulum lab report for dummies ministry of foreign. A simple pendulum has a smalldiameter bob and a string that has a very small mass but is strong enough not to stretch appreciably. The graph for the nonchaotic mode should be relatively constant. Additionally, we were to consider how the period of a pendulum is.
The simple pendulum university of colorado boulder. Sample lab report measuring g using a pendulum physics. Another factor involved in the period of motion is, the acceleration due to gravity g, which on the earth is 9. There is not relationship between the amplitude of a pendulums swing and its period. Investigating the effect of string length on pendulum period chunyang ding ib candidate number. Also shown are the forces on the bob, which result in a net force of toward the equilibrium positionthat is, a restoring force. In the experiment, both the length and the mass of the bob were varied. Simple pendulum lab report for dummies ministry of. The simple pendulum the university of tennessee at. The simple pendulum the purpose of this lab was to experimentally determine a value for g, the acceleration of earths gravity, by using the given pendulum equation and experimental data for the period of a pendulum and the length of a pendulum string. Pendulums part 1 answer key pendulums swing back and forth in a regular pattern. Other variables such as the angle of displacement were kept.