Iv if you arent comfortable with partial derivatives. For our final lab of associated with physics i, we will dissect the motions of a mass on a spring. Lab report that the pendulum lab report the question remaining is a simple to learn how to simple report. The current lab will also provide a nice real but simple physics example with which. Pass the thread through the splited cork with the 50 cm mark at the bottom of the cork and tighten the two cork pieces. Kevin zhen determining the classical simple pendulum answers to.
Scribd is the worlds largest social reading and publishing site. L length of the pendulum, measured from the post to the center of the bob. In the lab, you will calculate the acceleration due to gravity, g in boston using a pendulum. A simple pendulum consists of a particle of mass m. 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. Rstad side 1 av 4 simple pendulum investigation of gravity and restori ng force aim to determine acceleration due to gravity by measuring the time period of a simple pendulum.
A simple pendulum consists of a bob a spherical mass hung from a fixture by a. Describe how the pendulum s period is affected if the bobs mass is doubled. Determining the acceleration due to gravity with a simple. 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. Clicking on the answer button displays the acceleration due to gravity for the corresponding environment. A simple pendulum consists of a bob a spherical mass hung from a fixture by a very light string of length l. The length of the string is large compared to the dimensions of the bob. The simple pendulum is a basic timekeeping apparatus. Physics pendulum lab report college homework help and. The simple pendulum university of colorado boulder. Theory a simple pendulum is a weight suspended by a string or rod so that it is allowed to swing freely.
Although if the pendulum is red it may blowup depending on its status. The thin string used and a large mass reduces frictional effects and air drag. Conclusion in this laboratory report a simple pendulum. Physics report simple pendulum pendulum oscillation. The variables we consider are mass, length of the pendulum, and angle of initial dislocation. In the experiment, both the length and the mass of the bob were varied. 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. For small oscillations the simple pendulum has linear behavior meaning that its equation of motion can be characterized by a linear equation no squared terms or sine or cosine terms, but for larger oscillations the it becomes very non. The simple pendulum, shown above, consists of a mass m the bob suspended from a pivot by. Address the answers to the three discussion questions above.
Our experiment may be similar to one you have done in high school, however, the mathematical analysis will be more. Dont just write down the answers, but explain how you got them. Note that the length l is the distance from the point of support to the center of mass. Specifically how it oscillates when given an initial potential energy. The length of simple pendulum is directly proportional to. 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. Put ink marks m1,m2 and m3 on the thread at distance of 50cm,60cm and 70cm from the c. A simple pendulum is defined to have an object that has a small mass, also known as the pendulum bob, which is suspended from a light wire or string, such as shown in figure 16. Pendulums part 1 answer key pendulums swing back and forth in a regular pattern. Rev 01 january 31, 2007 the pendulum laboratory 1, physics 15c due friday, february 16, in front of sci cen 301 1 introduction most oscillating systems behave like simple harmonic oscillators for su. We also calculated an experimental value for acceleration due to gravity using the period. This experiment uses a uniform metallic bar with holesslots cut down the middle at regular intervals.
To study the simple pendulum to examine the physical pendulum to explore damped oscillations to consider driven oscillations and resonance. This experiment intended to investigate the four factors, angle, mass, length, and g value in the speed of a pendulum swing. Halliday, resnick, walker ch 8, 14 as needed pendulum. Conclusion in this laboratory report a simple pendulum model was used to from phys 170 at new york institute of technology, westbury. Investigating the effect of string length on pendulum. A few suggestions are made for extensions such as introducing motion along more. Theory a simple pendulum is a weight suspended by a string or rod so that it.
A few suggestions are made for extensions such as introducing motion along more than one axis, or going beyond the amplitude. The pendulum 1 introduction instructional physics lab. Halliday, resnick, walker ch 8, 14 as needed pendulum, and definitions of period, amplitude. 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. In the case of our lab, the monofilament fishing line we will use is a very close. The simple pendulum laboratory report write my dissertation.
Pcs125 lab the simple pendulum objective and background objective. Here, the to and fro motion represents a periodic motion used in times past to control the motion of grandfather and cuckoo clocks. This approximation can be applied to topics in many areas of physics. Record your results and answer the questions in the lab report section. The model was supported by the data using a linear t with chisquared. Remember that a paper your lab report in this case has to be complete, so everything text, graphs, results, tables, etc. This experiment used an angle of about 10 degrees and that introduced an error of 0. Only the length of the pendulum has an influence on the pendulum s speed, not the mass or angle of it. The quantities below that do not affect the period of the simple pendulum is.
Simple pendulum lab report phys 215 physics laboratory i. In this experiment, we investigate the properties of a simple pendulum. If we suspend a mass at the end of a piece of string, we have a simple pendulum. Are your results consistent with the hypothesis that the period of a pendulum is independent of its amplitude of oscillation. 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. In truth according to the equation below it should be massless. Ding 2 i will be investigating the effect of the length of a pendulum s string on the time for the. There is not relationship between the amplitude of a pendulum s swing and its period.
In the case of our lab, the monofilament fishing line we will use is. T2 is directly proportional to l the straight line graph passing. The simple pendulum laboratory report best lab reports online abstract the pendulum method is used for determination of the acceleration of gravity g. The objective of this experiment is to examine the simple harmonic motion and to determine the value of the acceleration due to gravity from the analysis of the period of the simple pendulum. Free college essays on physics pendulum prac for students. To do this experiment, we first simulated a pendulum on the computer and manipulated each separate variable and recorded our. Introduction if you look to the right, youll see a timelapse photograph of a simple pendulum. It ss far from simple, but it far from simple, but it. May 04, 2016 in this experiment, we investigate the properties of a simple pendulum.
The gravitational acceleration, g, was also determined from the experiment. Determining the acceleration due to gravity with a simple pendulum. A stationary pendulum has its string in a vertical position with the bob hanging straight down. Conical pendulum is similar to simple pendulum with the difference that the. A pendulum exhibits simple harmonic motion shm, which allowed us to measure the gravitational constant by measuring the period of. The simple pendulum department of physics and astronomy. Each person should attach their own copy to the lab report just prior to handing in the lab to your ta. If the length of the string increases, then the time it will take for the pendulum to make one cycle will increase as well. 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.
This lab tests the effects of different lengths of string on the period of a pendulum swing. 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\. Youll want to record your answers in this lab report which youll submit for grading. Lab report 1 the simple pendulum pendulum uncertainty. To conserve paper on the lab and also because i believe that further investigation would have. If you are working in a lab or in the field, do not work alone. To measure gravity, you will use a simple pendulum made out of thread and a. Oct 24, 2012 the objective of this experiment is to observe the motion of a simple pendulum, study simple harmonic motion, determine some factors that affect the period of a pendulum, and measure the value of acceleration due to gravity by use of a simple pendulum.
Simple pendulum problems and solutions solved problems. Lab report 1 the simple pendulum free download as word doc. The mass of the string is much less than the mass of the bob. Finally, using the propagation of errors rules from your lecture notes and lab companion, determine the. 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. Now the real lab procedure from steps 12 to 18 can be followed to complete the observations for finding the acceleration due to gravity.
This is known as the pendulum s equilibrium position since if left. Make a simple pendulum by suspending a mass hanger from a string tied to a support rod. Such oscillatory motion is called simple harmonic motion. Square the values of the period measured for each length of the pendulum and record. Compound pendulum a compound pendulum also known as a physical pendulum consists of a rigid body oscillating about a pivot. Conclusion in this laboratory report, a simple pendulum model was used to calculate the value of gravitational acceleration on earth. Jan 15, 20 the length of simple pendulum is directly proportional to. Using a photogate to measure the period, we varied the.
Using a simple pendulum the acceleration due to gravity in salt lake city, utah, usa was found to be 9. The long pendulum arm and a small swing about a small angle help in the approximation of the. A characteristic property of any pendulum is its period, p. Based on the equation above can conclude that mass does not affect the frequency of the simple pendulum. Exploring the simple pendulum a bit further, we can discover the conditions under which it performs simple harmonic motion, and we can derive an interesting. The period, t, of an object in simple harmonic motion is defined as the time for one complete cycle. The time it takes to complete one vibration is called the period.
Place about 200 g on the hanger to make a pendulum with a total mass of 250 g and a length of 1. Your lab report for this experiment should have the following sections. A simple pendulum consists of a bob suspended by a light massless. Using a simple pendulum the acceleration due to gravity in salt lake city, utah, usa was found to. The length of the pendulum, l is adjusted by measuring a length of lr from the top of the bob. The materials used were inelastic yarn, meter stick, timer, protractor and premeasured metal. How will changes in the mass of a pendulum change the period of oscillation of the.
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. T period, or the length of time it takes for the pendulum to swing back and forth once. Simple harmonic motion simple pendulum phys 215, t 3pm purpose the purpose of this experiment was to prove that the period of a simple pendulum is independent of both the mass of the hanging object and the angle of displacement of the pendulum. The force that keeps the pendulum bob constantly moving toward its equilibrium position is the force of gravity acting on the bob. The bar can be hung from any one of these holes allowing us to change the location of the pivot. It could be used as a homework or inclass activity. Investigating the effect of string length on pendulum period chunyang ding ib candidate number. Einstein purpose the purpose of this experiment was to determine whether length, mass and angle of displacement affect the period of a pendulum. What is the relationship between the period time for one cycle and the square root of length of a pendulum. To use a simple pendulum in an appropriate manner to determine the local acceleration of gravity. A weight is suspended on a length of string which in turn is attached to a frictionless pivot so it can swing freely. Sample lab report measuring g using a pendulum physics. These questions are also found in the lab report template. Simple pendulum to design and perform experiments that show what factors, or parameters, affect the time required for one oscillationof a compact mass attached to a light string a simple pendulum.
There are three equations that will be used to calculate the period of motion of the simple pendulum. The time period it takes to complete one swing is determined by the theoretical equation derived from the physical theory of repeating motions, aka simple harmonic motion. They must be answered by each individual of the group. Experiment 3 the simple pendulum suggested reading for this lab read taylor chapter 5. A simple pendulum consists of a mass m hanging at the end of a string of. Abstract using a simple pendulum and the model that the square of the period of a pendulum is. A simple pendulum consists of a large mass bob suspended by a light string from a rigid support figure 1. Remember, keep your lab reports short and to the point. The experiment was carried out to show that the mass of the bob has no effect on the period of the oscillation.
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