# Pendulum Lab Answers

One of the most common uses for pendulums is to tell time. At its highest point (Point A) the pendulum is momentarily motionless. INTRODUCTION: We will be shooting a steel ball into the bob of a pendulum at a certain height which is where the bob will get stuck at. Scientific principles govern what affects the swing rate of the pendulum. These are : (1) The period is directly proportional to the square root of it's length. The pendulum strongly rotated clockwise, the answer is a resounding yes. The math behind the simulation is shown below. A pendulum swings back and forth at a steady pace under the influence of gravity. (For your convenience, the figure below also shows the two components of →w, one parallel to the string and one perpendicular to the. More Perfect is here to prove these three are more interesting than you think they are. Musical!Acoustics!Lab,!C. Experimental Technique: We used a simple pendulum and manipulated several factors. The pendulum with the smallest period will have the highest frequency of vibration. Wharty Moderator Monday, March 23, 2015 1:41 AM; Unproposed as answer by Pendulum_7 Monday, March 23, 2015 6:40 PM; Marked as answer by Pendulum_7 Monday, March 23, 2015 6:43 PM. A simple pendulum is a mass M swinging on the end of a string of length whose other end L is fixed, as shown in Figure 1. Telling Time. and i love designing and handcrafting the most beautiful pendulums and pendulum jewelry, and the most exquisitely embossed velvet tarot pouches and mineral/jewelry display pillows. Acceleration; BUA Homework on Newton’s Axioms; BUA. A stationary pendulum has its string in a vertical position with the bob hanging straight down. Start studying Physics I Lab Pre lab quiz answers. INTRODUCTION. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Recall that the. Justify your answer by calculating the kinetic energy of the system (ball and pendulum) before the collision and compare the kinetic energy just after the collision. When the bob is displaced from equilibrium and then released, it begins its back and forth vibration about its fixed equilibrium position. Waves Hands On Lab. Some of the questions that appear in this lab handout are pre-lab questions and the answers are to be handed in at the beginning of your lab — the. Perform experiments with a pendulum to gain an understanding of energy conservation in simple harmonic motion. How would you adjust the pendulum of a grandfather clock if it were running too slow? _____ 4. The Virtual Pendulum is an application designed for the web, where a swinging pendulum will respond with answers as: The pendulum swings from left to right, the answer is probably no. 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. Now the real lab procedure from steps 12 to 18 can be followed to complete the observations for finding the acceleration due to gravity. How to Start an Essay: Simple and Effective Instruction. A pendulum swings back and forth, back again, and forth again, just as the nights swing forward as the days swing back. One is mg, the force due to gravity, and the other is string tension, T. L, and T^2 vs. Physics Practical Class 11 Lab Manual. Lab Report Guidelines; Mass vs Weight; Net Force; Newton’s First Law; Homework for 1st Q; Physics Olympix; Visual Classrooms. Then the period T for one. Duration: Approximately 60 minutes. The period increases as the square root of the length. Measurement of acceleration due to gravity (g) by a compound pendulum Aim: (i) To determine the acceleration due to gravity (g) by means of a compound pendulum. As preparation for lab, review your knowledge of the pendulum and write down the equation for g in terms of the pendulum length and period. Which!of!the!following!MATLAB!expression!gives!U1. Introduction: A characteristic property of any pendulum is its period, P; the time it takes the pendulum. Known as ballistic pendulums, these devices have been used for decades in labs and classrooms to help investigate the conservation of. A pendulum makes 42 vibrations in 50. 7 without partial derivatives:. ! a) cos(180)! b) cosd(pi)! c) sind(3*pi/2)! d) sin(Upi/2)! e) Noneoftheabove!! 8. How to Start an Essay: Simple and Effective Instruction. The popular formula for the period of a pendulum works only for small angular displacements. It's easy to measure the period using the photogate timer. Touching it and feeling a temperature change or a subtle vibration may mean it is the lucky one. A playground swing is a pendulum. A playground swing (Figure 1) is an example of a pendulum. The forces applied to the mass are the force of gravity and the tension in the string. INTRODUCTION A simple pendulum consists of a point mass suspended at the end of a cord of zero mass. The period is how long it takes to complete one cycle. A simple pendulum consists of a bob or a weigh hanging at the end of a string or a wire. g is the acceleration of gravity. Record the length of the pendulum in the table below. The pendulum acts as a form of receiver and transmitter, from your higher guidance, guardian angels and spiritual teachers. How well is the mass concentrated at the bob of you pendulum? This anomaly will cause the period to increase. A pendulum swings back and forth, back again, and forth again, just as the nights swing forward as the days swing back. In this lab, we’ll assume that we have a simple pendulum where a small spherical mass constitutes the \bob" of the pendulum. These range from a form to fill in and submit before leaving the lab, to a formal written report. In this experiment you will use the torsion pendulum, the power supply for the driving motor, a low voltage power supply for the eddy current damper, two digital multimeters, and a stop watch. 6 The Ballistic Pendulum – Serway & Jewett, Physics for Scientists & Engineers with Modern Physics, 7th Edition, p. When the weight is swinging back and forth with a steady, uninterrupted rhythm, it is oscillating. Denman, Amplitude-Dependence of Frequency in a Linear Approximation to the Simple Pendulum Equation, AJP 27, 524-525, (1959). Also available are: open source code, documentation and a simple-compiled version which is more customizable. The sources of errors in a simple pendulum experiment are the following: 1. METHOD : An experimental pendulum is suspended successively about several axes at different points along its length and the period about each axis is observed. For example; light sensors or laser beams to improve the accuracy of the recording time. 8m/s2?? INTRODUCTION: A simple pendulum consists of a mass m swinging back and forth along a circular arc at the end of a string of negligible mass. [Although the washers were also behaving as a conical pendulum, their circular radius should have been minimal. // PURPOSE: to evaluate g[m/s^2] as a function of pendulum period // FILENAME: gfun. If the amplitude of motion of the swinging pendulum is small, then the pendulum behaves approximately as a simple. L is the length of the pendulum (of the string from which the mass is suspended). Jad Abumrad:. Clicking on the 'Answer' button displays the acceleration due to gravity for the corresponding environment. The mass, length, and gravitational acceleration of the pendulum can be adjusted, as well as the initial angle. pdf), Text File (. Purpose To utilize two different methods of determining the initial velocity of a fired ball, namely a ballistic pendulum and treating the ball as a projectile, and then compare these two calculated values. Measure the length of the pendulum to the middle of the pendulum bob. IV if you aren't comfortable with partial derivatives; for a simpler look at the material of section 5. Since your. 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, and the amplitude of the swing. Using the corrective function (from #8 of the link above) in my calculations resulted in a near-perfect simulation. Observations. Wells, A Demonstration Laboratory for Advanced Dynamics, AJP 13, 147-15, (1945). For large motions it is a chaotic system, but for small motions it is a simple linear system. With our newfound analysis, I had students answer the following question based on their "good" quadratic model (in our case above: ): (a) If your pendulum has a period of 1. Lab Report Compound Pendulum in Different Medium. Students understand how kinetic and potential energy relate within a system. Attached is a copy of the lab, with the answer key provided. This is the time it takes the pendulum to complete one full swing - from one side to the other and back again (or, equivalently, from the middle, up to one side, down past the middle and up the other side, and back down to the middle again). The period of a pendulum or any oscillatory motion is the time required for one complete cycle, that is, the time to go back and forth once. Graph the period of the pendulum as a function of its length using the chart feature of Excel. By: Julia Banning, Megan Nanovic, and Taya Wentz. The first pendulum clock was built in the 1600s, and it was the most accurate way to tell time for nearly 300 years. Measurers of distance (2 people - using the meter sticks, you will measure the distance that the ball travels and tell the recorder the distance in meters and centimeters) Holder (Keeps track of what balls have been used and what balls still need to be used for the lab) Speed recorder ( Mrs. You may use a freebody diagram for a stationary mass hanging from the end of a string to answer this question. Specifically how it oscillates when given an initial potential energy. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers. Measure the distance from the ceiling to your weight. The swing is supported by chains that are attached to fixed points at the top of the swing set. back and forth Explore energy transformations in a pendulum and investigate how the mass of the bob and the length of the string affect the period of the pendulum swing. 10 V S D =9 M S D. In an introductory physics course, the ballistic pendulum is a perfect example of combining more than one idea into the same situation. 3 Measure the length L between the pivot of the pendulum and the center of mass of the bob as accurately as possible. I've seen the apparatus and it was a triangular. To conserve paper on the lab and also because I believe that further investigation would have. The sources of errors in a simple pendulum experiment are the following: 1. In this pendulum instructional activity students complete a lab activity, answer questions and complete a data table. A simple pendulum is a pendulum that has a. The ball is fired into the pendulum, which then swings up a measured amount. Utilization of Data The motion of the mass was recorded using a video cam-era and digitally reproduced on a Dell computer using Lab-VIEW® and AviCapture [3]. I have used the pendulum on and off for years and it’s a wonderful way of gaining quick, straight-forward, and often surprising answers! However, while the dowsing pendulum is an inexpensive and effective form of divination, there are some things you need to know before starting. Some of the worksheets displayed are Swinging pendulum high school work, Simple pendulum, Part a pendulum work period and energy, Lab 1 the simple pendulum, Simple harmonic motionpendulum, National math science initiative elementary science, Simple harmonic motion work, The pendulum. Answer: Yes, and no. PreLab: Ballistic Pendulum. Ding 2 I will be investigating the effect of the length of a pendulum's string on the time for the As this is a rather nonsensical answer, and. Ap Physics Lab Report- Pendulum Essay. The pendulum with the smallest period will have the highest frequency of vibration. One of the most common uses for pendulums is to tell time. Formula: A. These principles predict how a pendulum behaves based upon its. * Apparatus Note: To set the length of the pendulum, simply slide the string between the metal brackets until you achieve the desired length and then tighten the screw. This energy is called kinetic energy and is defined as $ KE = \frac{1}{2} m v^2 $ (1) At any instant of time in the swing of a pendulum, the velocity vector, v, can be broken up into its x and y components, v x and v y, respectively (see Figure 1). If the amplitude of motion of the swinging pendulum is small, then the pendulum behaves approximately as a simple. 80665 m/s^2 - this is the default value in the simple pendulum calculator. The main part focused on formal aspects lab physics pendulum report of the research question that could be described as a whole. Pendulum Lab 1 Learning Goals: Students will be able to: Design experiments to describe how variables (length, mass, angle and gravity field) affect the motion of a pendulum Use a photogate timer to determine quantitatively how the period of a pendulum depends on the variables. To conserve paper on the lab and also because I believe that further investigation would have. Introduction: A characteristic property of any pendulum is its period, P; the time it takes the pendulum. 3 Measure the length L between the pivot of the pendulum and the center of mass of the bob as accurately as possible. We have already noted that a mass on a spring undergoes simple harmonic motion. When was the potential energy the highest in this experiment and why? When was the kinetic energy the highest in this experiment and why? In theory, the potential energy at the top of the drop should match the kinetic energy at the bottom of the drop for each. Conclusion: Gravitational acceleration was found to be _____ form the result calculations and _____ form graphical solution. But just what is gravity? Sir Isaac Newton tried to give operational meaning to the idea. The math behind the simulation is shown below. Physics Lab #5 – Period of a Pendulum The science of the pendulum was investigated by Galileo while he was still a student. In this lab you will explore the motion of a mass attached to a spring hanging vertically from a fixed support and the motion of a simple pendulum. The theory of the lab is that the Moment of Inertia calculated from the equations we know will be the same as the Moment of Inertia measured from the data collected from the rod and its point masses. You will also use the concept of resonance to make pendulums swing without any initial push. If the amplitude of motion of the swinging pendulum is small, then the pendulum behaves approximately as a simple. When working with any pendulum, this is really a good idea to do this exercise. Pendulums have been used in grandfather clocks and the like to keep time. Ballistic Pendulum Lab. In the Virtual Lab, you will learn about the relationship between potential energy and kinetic energy by swinging a pendulum and observing bar and wave graphs as they illustrate its energy. (You can skip section 5. The mass swings back and forth with a period periodT. 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. As the length of the string decreases, the time period also decreases. Then use a photogate to measure the bob's maximum speed and a motion sensor to see how the speed changes throughout the swing. Objective: After you finish this lab you should know: The difference between elastic and inelastic collisions. Lab Report Guidelines; Mass vs Weight; Net Force; Newton’s First Law; Homework for 1st Q; Physics Olympix; Visual Classrooms. The Java-applet requires some time to load, so please be patient while it is starting. The Plot & the Pendulum Lab. The frequency of the spring oscillator was derived in class and is given by:. Rouinfar, September 2017. L = length of the pendulum, measured from the post to the center of the bob. The photogate works by projecting an infrared beam from one arm of the sensor to the other arm. The forces applied to the mass are the force of gravity and the tension in the string. From Lab Simple Pendulum, we learned that the period is: g. Answer to Simple Pendulum Lab Experimental Procedure The goal of this experiment is to determine the period of oscillation of a si. the distance from the pendulum's point of suspension to the center of mass of its bob ; the pivot point; in an experiment, this is the variable whose value is an outcome of the experiment. Describe the force in an elastic spring. Overview: In this lab you will determine how the period of a simple pendulum (a billiard ball. The ball is fired into the pendulum, which then swings up a measured amount. Include the work from calculation, data tables, and answers to questions in the order given. These principles predict how a pendulum behaves based upon its. By considering the playground swing, looking at diagrams, and using real-world pendulums, students understand how kinetic and potential energy relate within a system. The physics of pendulums on. A pendulum is any object that hangs from a fixed point (also called a pivot) on a string and, when pushed from its resting position, swings freely back and forth. Write the lab report using the same lab report form where you created your data table. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. Simple Pendulum The motion of a pendulum can be treated as simple harmonic if: 1. Start studying Physics Lab 11. This handout describes what materials will be needed, how their lab report will be graded, and gives some guidelines for developing a hypothesis. Lab 1: The Pendulum. One back-and-forth movement is called a vibration or oscillation. We changed the masses, length of the string, and the amplitude by adjusting the angle. More Perfect is here to prove these three are more interesting than you think they are. Students design a plan to use only length measurements to predict the period of a conical pendulum. It's easy to measure the period using the photogate timer. INTRODUCTION. The pendulum strongly rotated clockwise, the answer is a resounding yes. In this lab, students will begin by learning the fundamentals of inverted pendulum control, followed by optimal control of an inverted pendulum in section two. I'm doing a project for school and i'm looking for creative ways to improve a pendulum experiment. A simple pendulum has a mass m (bob) hanging from a string of length l fixed at a pivot point. Many amusement park rides are pendulums. Adjust the Grid Board at a height that accommodates the. 1 M S D = 1mm. The Simple Pendulum J. You are going to count the number of full swings the pendulum makes in 30 seconds. Galileo's experiment with dropping heavy and light objects from a tower showed that all. Ignoring friction and other non-conservative forces, we find that in a simple pendulum, mechanical energy is conserved. What is its period and frequency? What is the period of a simple pendulum 50. Equipment Needed: Stop Watch String Metal Object That Can Be Tied To The String ( 2 Such Object With Different Masses). SAN DIEGO MESA COLLEGE. A playground swing is a pendulum. Move the sensor away from the hanging pendulum bob Record your results and answer the questions in the Lab Report section. A simple pendulum is a pendulum that has a. e its periodic motion is defined by an acceleration that is proportional to its displacement and directed towards the Centre of motion. My guess is that you assumed a perfect pendulum which means no friction. ourselves to two particular mechanical oscillatory systems: the mathematical pendulum and a spring oscillator depicted in the figures below. Lab Report Submittal Date: September 9, 2003 Lab 1: 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. The mass of the bob is not an important variable; only the length of the string will effect the period (and thus the frequency). 6 The Ballistic Pendulum – Serway & Jewett, Physics for Scientists & Engineers with Modern Physics, 7th Edition, p. An ideal simple pendulum consists of a heavy point mass (called bob) tied to one end of a perfectly inextensible, flexible and weightless string. (a) Derive an expression for the speed v b with which the large sphere strikes the floor. Pendulum Lab 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, and the amplitude of the swing. The Basic Facts of Simple Pendulum Lab Report Procedure The following is an instance of a complete lab report of the type that we will do a couple of times each semester. Rouinfar, September 2017. 1 V S D=9/10 M S D=0. The bucket rests directly in front of the launcher, right at the exit point of the projectile (fig. Pendulum Java Applet. Lab reports can vary in length and format. A D E B C Figure 1: A simple pendulum comprised of a thread (A) hanging from a nail (B) supporting a light hook (C) on which di erent masses (D) are hung. What is its period and frequency? What is the period of a simple pendulum 50. Energy changes of the ball-rod pendulum are to be determined, the Earth should be included. Introduction: A characteristic property of any pendulum is its period, P; the time it takes the pendulum. A collection of virtual labs created by glencoe. Two simple pendulums are in two different places. Experiment: 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. Hooke S Law And Simple Harmonic Motion Adam Cap Ph202 Chapter 14 Solutions Section 14 1 Periodic Motion Harmonic Motion Worksheet Answers Inspirational Physics Physical Simple Harmonic Motion Cribme Physics Chapter 10 Section 2 Worksheet 1 Pendulum Lab Periodic Motion Simple Harmonic Motion. We did this because we wanted to make sure we would be able to do the experiment, and get. This lab is about a simple pendulum and how its used to determine the value of acceleration due to gravity. (ii) To determine radius of gyration about an axis through the center of gravity for the compound pendulum. After the ball is fired it is caught by a pendulum with foam inside and swings up changing kinetic energy to potential energy. IV if you aren't comfortable with partial derivatives; for a simpler look at the material of section 5. Lab Report Compound Pendulum in different medium Raoul Corstjens IS10a Introduction An oscillating object is a mass that follows a pattern that causes the mass to return to its initial position after completing one complete oscillation in a constant certain amount of time. Your instructor will keep you updated. Consequently, each pendulum has a different release angle. A playground swing is a pendulum. LEARNING OBJECTIVES. Hang the spring from the pendulum clamp and hang the mass hanger from the spring. How does thermal energy affect the state of a substance? - temperature and changing states, analzying graphs How can a molecular model be built? - build stick models How can you tell which elements form chemical bonds? - arrange electrons in energy levels to predict how bonds will form How is an atom's structure related to its position on the periodic table? compare elements. Set the length of the string to 20 cm. Experiment 4 The Simple Pendulum Reading: Read Taylor chapter 5. The ten centimeter string did an average of seventy-nine swings. (In this lab, you may use the photogate timer to determine the period, but in the next lab, the spring lab you will not have this luxury. Welcome to the World of Pendulum Power Ve ljko Milkovic's Two-Stage Mechanical Oscillator -- A Mechanical Amplifier of Clean Energy A simple mechanism with new mechanical effects, represents the source of clean mechanical energy. The thin string used and a large mass reduces frictional effects and air drag. Answer the two lab questions listed below at the end of your lab report form. At the pendulum’s highest point, it has no speed and all the energy in the system is potential. Denman, Amplitude-Dependence of Frequency in a Linear Approximation to the Simple Pendulum Equation, AJP 27, 524-525, (1959). Compare simple harmonic motion and the motion of a pendulum. This is a logarithmic. pendulum lab answers or just about any type of ebooks, for any type of product. There is no force acting on the pendulum to make it rotate. Conclusion For this experiment data was collected and analyzed using charts and graphs. Use MathJax to format equations. #3: How well did you measure the length of the string?. 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 1. To find the diameter of the bob. You will show that the period only. where M is the mass of the pendulum;. The pendulum strongly rotated clockwise, the answer is a resounding yes. Experiment title: Name: Instructors Name: The Simple Pendulum Amanda Reid, 16164167 Salim. 0-cm long (a) on the earth, and (b) when it is in a freely falling elevator? The length of a simple pendulum is 0. When the swing is raised and released, it will move freely back and forth. It's easy to measure the period using the photogate timer. Pendulum Java Applet. 10 V S D =9 M S D. FIRST YEAR PHYSICS LABORATORY (P141) MANUAL LIST OF EXPERIMENTS 2015-16 1. The center of mass should be carefully marked. The potential energy, kinetic energy, and total energy of the oscillating pendulum can be displayed on a table, bar chart or graph. Lab 2: Harmonic Motion Lab. Purpose: In this lab, the measured and calculated centripetal forces will be discovered and compared by using a pendulum and photo gate sensor. A ball collides with a pendulum in the lab #7. Since in this lab the pendulum is not a point mass, the center of mass is determined by balancing the pendulum on an edge. The motion is regular and repeating, an example of periodic motion. Pendulum Lab a. Answer the questions about the lab. To calculate the acceleration due to gravity using a simple pendulum. After printing the worksheet and completing it using the video from page 2, submit the assignment in the dropbox. Macromedia Shockwave Player The length of the pendulum at this site is less than 1. An experiment with the simple pendulum Often you will be asked to graph results obtained in the lab and to ﬁnd certain quantities from the slope of the graph. To find the velocity after the collusion, we use a derivation of. Physics is the study of the basic principles that govern the physical world around us. The period increases as the square root of the length. Report your prediction in the form Rpredicted =. We repeated this measurement five times. In this lab, we are interested in the period, \(T\), of the pendulum. INTRODUCTION: (10pts). Expt 4a: Conservation of Momentum and. Measure the length of the pendulum to the middle of the pendulum bob. But just what is gravity? Sir Isaac Newton tried to give operational meaning to the idea. G2: The Damped Pendulum A problem that is difficult to solve analytically (but quite easy on the computer) is what happens when a damping term is added to the pendulum equations of motion. 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. Many of these allow students to manipulate variables and conduct tests that might be too dangerous or expensive to perform in class. Create a foam insert that can catch the metal sphere projectile 3. Students observe the relationship between the period of a pendulum swing and its length, mass and angle. In this pendulum instructional activity students complete a lab activity, answer questions and complete a data table. They will then apply this knowledge to a hands-on activity using the Quanser Controls Board, perform calculations, and answer free response questions. Introduction: A characteristic property of any pendulum is its period, P; the time it takes the pendulum. By measuring the change in height, h, of the center of mass of the pendulum arm, PE grav can be. If we equate the two, we find that the mass of the object cancels. Express all answers in terms of M, H, and fundamental constants, as appropriate. It helps to guide the teacher and the students into predictions, inferences, observations, data collection, graphing, concluding, reporting and discussion. A simple pendulum is known to have a period of oscillation T = 1. edu Title: Double Pendulum: A Bridge between Regular Dynamics and Chaos Original: Revision: July 26, 2005 (v1) Nov 14, 2005 (v2), May 23, 2006 (v3), June 22, 2009 (v4) Authors: Shaffique Adam and Walt Peck Appropriate Level: Regents Physics. Einstein Purpose The purpose of this experiment was to determine whether length, mass and angle of displacement affect the period of a pendulum. Measured value of L is 10 cm known to 1 mm accuracy and time for 100 oscillations of the pendulum is found to be 50 s using a wrist watch of 1 s resolution. Thus, if the length of a pendulum is increased by a factor of 4, the period is only doubled. 250 kg, how high will the pendulum swing if the marble has an initial speed of 5. 5 fun experiments that encourage problem solving and play. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. As most manufacturing jobs revolve around creating components and assembling components into products, you can expect to be interviewed about. Get an answer for 'What are the dependent, independent, and controlled variables of a simple pendulum? ' and find homework help for other Science questions at eNotes. Let the user increase the animation speed with the UP-amow key, and decrease the animation speed with the DOWN-arrow key. IV if you aren't comfortable with partial derivatives; for a simpler look at the material of section 5. You can vary the mass of the pendulum bob, the length of the pendulum, the angle to which you pull the pendulum back, and the gravitational field strength. We can accomplish your project keeping the tight time frames. (In truth according to the equation below it should be massless). Some terrible things have happened in the United State, but one can only hope that we learn from those bad things. The current lab will also provide a nice real (but simple) physics example with which. 1 M S D = 1mm. The simple pendulum lab report. The Ballistic Pendulum Introduction Preparation: Before coming to lab, read this lab handout and the suggested reading in Giancoli (through Chapter 7). Lab Report Submittal Date: September 9, 2003 Lab 1: 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. Worksheets are Swinging pendulum high school work, Simple pendulum, Part a pendulum work period and energy, Lab 1 the simple pendulum, Simple harmonic motionpendulum, National math science initiative elementary science, Simple harmonic motion work, The pendulum. pendulum bob is directly centered in front of the brass colored disk on the front of the sensor. 8m/s2?? INTRODUCTION: A simple pendulum consists of a mass m swinging back and forth along a circular arc at the end of a string of negligible mass. Students observe the relationship between the period of a pendulum swing and its length, mass and angle. the independent variable in this investigation was the length of the string and, therefore, the length of the pendulum this is only if the dimensions of the mass carrier are kept constant which in this case were. They will test and understand the relationship between the variable being tested and the period. Quadruple the Size of the Arc Construct a pendulum with m = 200. Lab Style: Cookbook Definitions: T = period, or the length of time it takes for the pendulum to swing back and forth once. Now the real lab procedure from steps 12 to 18 can be followed to complete the observations for finding the acceleration due to gravity. Forced Oscillations of a Linear Torsion Pendulum (A Virtual Lab for Undergraduate Students) A computer model of a mechanical linear oscillator driven by a sinusoidal force is presented on this page. Although if the pendulum is red it may blow-up depending on its status. In a simple spring system, both mass and K value affect the period. The!volume!of!a!cylinder!is!!=!!!. Hooke S Law And Simple Harmonic Motion Adam Cap Ph202 Chapter 14 Solutions Section 14 1 Periodic Motion Harmonic Motion Worksheet Answers Inspirational Physics Physical Simple Harmonic Motion Cribme Physics Chapter 10 Section 2 Worksheet 1 Pendulum Lab Periodic Motion Simple Harmonic Motion. This approximation can be applied to topics in many areas of physics. Experiment 8 Ballistic Pendulum Conservation of linear momentum (Before and immediately after the collision) Conservation of energy (During the swing of the pendulum arm) m p b m b v 0 =()m p + m b v r 1 2 ()m p + m b 2v r =()m p + m b gh cm initial velocity v 0 = ()m p + m b v r m b recoil velocity v r = 2gh cm Procedure: 1. Pendulums— Part 1— Answer Key Pendulums swing back and forth in a regular pattern. Pendulum clocks have a weight that can be raised and lowered. It can be done without observations at any time, but it is educationally best with them. There is a very simple background information sheet for on the content presented in this lab for the instructor. As the length of the string decreases, the time period also decreases. We then do some additional algebraic manipulation to solve for the mass of the Earth and get our equation in. (a) Derive an expression for the speed v b with which the large sphere strikes the floor. But in reality, the pendulum loses energy everytime it swings back and forth due to frictional forces. The mass of the string is much less than the mass of the bob. To show that the period (or angular frequency) of the simple harmonic motion of the torsion pendulum is independent of the amplitude of the motion 3. Lab report structure. A component of the force of gravity provides the restoring torque. Pendulum Lab 1 Learning Goals: Students will be able to: Design experiments to describe how variables (length, mass, angle and gravity field) affect the motion of a pendulum; Use a photogate timer to determine quantitatively how the period of a pendulum depends on the variables; Pendulum Lab 2 Learning Goals: Students will be able to:. Displaying all worksheets related to - Pendulum Lab. Pendulum clocks have a weight that can be raised and lowered. Pendulum definition is - a body suspended from a fixed point so as to swing freely to and fro under the action of gravity and commonly used to regulate movements (as of clockwork). The errors that can affect the experiment are: the environment conditions, the measurement of the string, the amplitude or pullback distance of the pendulum, and the ruler that it's hanging from. The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving. What effect does inertia have on a pendulum? It keeps the pendulum moving once it is in motion. The!volume!of!a!cylinder!is!!=!!!. Start by observing the pendulum swinging. Lab: Pendulum Energy. Suppose that the body is suspended from a fixed peg, which passes through the hole, such that it is free to swing from side to side, as shown in Fig. My guess is that you assumed a perfect pendulum which means no friction. A Foucault pendulum is a huge pendulum that swings in two axes as the earth rotates to also keep time. The following sample calculations is for the pendulum with small bob and length of 0. The Basic Facts of Simple Pendulum Lab Report Procedure The following is an instance of a complete lab report of the type that we will do a couple of times each semester. Objective. The model was supported by the data using a linear t with chi-squared. The length of the string is large compared to the dimensions of the bob. Contrast transverse and. Known as ballistic pendulums, these devices have been used for decades in labs and classrooms to help investigate the conservation of. Make sure the lighter pendulum is not moving. 2 Simple Pendulum. The time a pendulum takes to swing back and forth (one cycle) is referred to as one period. Energy changes of the ball-rod pendulum are to be determined, the Earth should be included. Utilization of Data The motion of the mass was recorded using a video cam-era and digitally reproduced on a Dell computer using Lab-VIEW® and AviCapture [3]. Jad Abumrad:. For many years they have been used for keeping time. In the case of our lab , the monofilament fishing line we will use is. M hanging off a. On Earth, this value is equal to 9. The pendulum acts as a form of receiver and transmitter, from your higher guidance, guardian angels and spiritual teachers. In an introductory physics course, the ballistic pendulum is a perfect example of combining more than one idea into the same situation. You will need to save this into your algebra folder that you created in Module 3 before you begin working on it. The ballistic pendulum consisted of a large block, suspended by cords. Have your lab partner measure y also, before disclosing your measurement, then compare and decide on the uncertainty in this measurement. Choosing a pendulum in person is the best way to realize which one catches the eye. For many years, police laboratories used ballistic pendulums to measure the muzzle velocities of firearms. 81 using simple pendulum. It's easy to measure the period using the photogate timer. Introduction: Old grandfather clocks have large pendulums that swing back and forth to keep time. 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. Purpose: 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. Ding 2 I will be investigating the effect of the length of a pendulum's string on the time for the As this is a rather nonsensical answer, and. It's easy to measure the period using the photogate timer. Theory: A simple pendulum consists of a bob (a spherical mass) hung from a fixture by a very light string of length L. This approximation can be applied to topics in many areas of physics. You will also examine conversion of mechanic energy into electric energy by comparing the energy dissipated in a load resistor to the loss of mechanical energy of the pendulum wand. Record the mass in your lab report. Many amusement park rides are pendulums. 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. Determine the time or period for one complete swing by measuring 5 swings with the stop watch and dividing the final answer by five. Pendulum Lab a. Observations. As the pendulum moves, you gain answers in response to questions – it is best suited to use to answer ‘yes’ or ‘no’ questions. Is gravity always 9. 5 Projectile. mass to the end of the string. This setup is known as a compound pendulum. 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, and the amplitude of the swing. Record the mass in your lab report. If f 1 is the frequency of the first pendulum and f 2 is the frequency of the second pendulum, then determine the relationship between f 1 and f 2. Pendulum Lab Abstract: Pendulum is one of the most studied mechanical systems found in physics. Ballistic Pendulum Lab. Section/Objectives Standards Lab and Demo Planning National State/Local Chapter Opener 1. 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. This collection of notes is NOT a lab manual! We are not attempting to. The only factor that affects a pendulum’s frequency is _____. time for musicians. lab experiment (even though the Assessment Test is not a lab test). 250 7-1 EXPERIMENT 7 BALLISTIC PENDULUM I. Inertia makes the pendulum swing straight out, gravity pulls the pendulum straight back. Pendulum Lab 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, and the amplitude of the swing. The bar graphs of KE (kinetic energy) and PE (potential energy) are displayed in real time as the simulation runs. 1τ - use the small angle approximation!) Have the computer fit a "smooth" curve through the points and comment on the values of t when θ = 0 (this should be done before lab). (2) The period is inversely proportional to the square root of the acceleration due to gravity. In reality, though, pendulums have several practical applications in the real world and are still used frequently. It is also a good demonstration of some of the basic principles of physics. This is a logarithmic. But just what is gravity? Sir Isaac Newton tried to give operational meaning to the idea. The bucket rests directly in front of the launcher, right at the exit point of the projectile (fig. In this experiment, we investigate the properties of a simple pendulum. Then use a photogate to measure the bob's maximum speed and a motion sensor to see how the speed changes throughout the swing. L, with the mass of the string negligible compared to. G2: The Damped Pendulum A problem that is difficult to solve analytically (but quite easy on the computer) is what happens when a damping term is added to the pendulum equations of motion. However, it is not a linear relationship. Which conservation laws apply to each type of collision. Measurement of ‘g’ using compound pendulum. What is a simple pendulum? 2. A body with mass m and speed v has energy by virtue of its motion. Owen and Daniel C. Data section includes a graphic clearly labeling the three locations along the trajectory which were analyzed. #2: No practical pendulum truly contains a point mass at the end of a massless string. Pendulum Lab. Define period of the pendulum. There was a great man, uh, once said that the true symbol of the United States is not the bald eagle, it is the pendulum. GRADING Your lab reports will be graded each week and returned to you the following week. Use your ingenuity. Sturdily constructed, this is not a plastic toy. Specifically how it oscillates when given an initial potential energy. BACKGROUND INFORMATION – Pendulum Lab BASIC INFORMATION: A pendulum is any object that hangs from a fixed point and is allowed to swing freely. What does T in the equation 4 represent? In the Impulse and momentum lab, we will make a velocity vs. But in reality, the pendulum loses energy everytime it swings back and forth due to frictional forces. A common example of pendulums can be found in such timepieces as grandfather clocks. Make careful stretches in your lab report show all of the distances involved. A playground swing (Figure 1) is an example of a pendulum. The length of the pendulum is the independent variable and should be plotted on the horizontal axis or abscissa (x axis). Answers for Computer Science Circles by University of Waterloo - airglow923/cs-circles-answers. The ball is fired into the pendulum, which then swings up a measured amount. This experiment was conducted to determine if the period of the pendulum depends on the mass of the weight, the length or the angular displacement of the. This is a simulation of a double pendulum. the point where all of the mass of the object can be considered to be concentrated ; in an experiment, this is the variable which is controlled. Data section includes a graphic clearly labeling the three locations along the trajectory which were analyzed. Quick Links. Complete the table below. The magnitude of the velocity vector is related to the components. Conclusion For this experiment data was collected and analyzed using charts and graphs. The length of the pendulum, L, is measured from the pivot point out to the center of mass of the pendulum. The simple pendulum lab report. (In truth according to the equation below it should be massless). Watch the pendulum swing as an ideal system or add friction and see it gradually slow down. The time a pendulum takes to swing back and forth (one cycle) is referred to as one period. This equation is strictly valid only for a small range of angles of release ((say) 0. Learn how to get the acceleration acceleration, acceleration value (g-force), in one of three specified dimensions. Essay Example on Simple Pendulum Lab Report In order to reduce possible random errors in the time measurements, we repeated the measurement of the period three times for each of the ten lengths. It is so regular, in fact, that for many years the pendulum was the heart of clocks used in astronomical measurements at the Greenwich. Materials: rubber stopper, string with plastic tube, tape, stopwatch, angle finder Diagram: Draw a diagram of your setup in action. For the masses, we found the masses and their center of mass and positioned them at the same length. Answer: Yes, and no. This is a logarithmic. Attach the 50g mass to the loop, and ensure that your pendulum measures a length of 50 cm. Forced Oscillations of a Linear Torsion Pendulum (A Virtual Lab for Undergraduate Students) A computer model of a mechanical linear oscillator driven by a sinusoidal force is presented on this page. It can be shown mathematically that the position-time graph of a pendulum is sinusoidal, with a period that depends on the pendulum’s length. The ballistic pendulum is a classic method of determining the velocity of a projectile. LAB is a hi-quality music application for Mac OSX and Windows, transforming Download Review Comments Questions & Answers Pendulum Lab. lab report, you have the data! Lab 13: Ballistic Pendulum Lab. The frequency of the spring oscillator was derived in class and is given by:. A Foucault pendulum is a huge pendulum that swings in two axes as the earth rotates to also keep time. Also, always trust your instincts. The purpose in this lab is to use a ballistic pendulum to find its initial velocity of a projectile using the conservation of momentum as well as the conservation of energy. Lab Report Compound Pendulum in Different Medium 1494 Words | 6 Pages. Start studying Physics I Lab Pre lab quiz answers. Notes: [1]. How to Start an Essay: Simple and Effective Instruction. j 2013/14 Hanne Martine G. 1: Schematic diagram show the components of the ballistic pendulum apparatus After the collision takes place, and the metal ball is stuck in the pendulum, the pendulum-ball combination has a kinetic energy: KE f = 1 2 (m+M)v2 f (4. The time the weight takes to move through one full back-and-forth swing, (an oscillation) is called the period of the pendulum. How to Use a Pendulum for Dowsing and Divination: Answer Questions, Find Lost Objects, Heal Body and Mind, and More! [Bonewitz, Ronald L. #3: How well did you measure the length of the string?. This collection of notes is NOT a lab manual! We are not attempting to. Physics pendulum lab report Ike December 13, 2016. The string length trials showed a clear cause-and-effect relationship: As the length of string got longer, the number of swings in a minute became fewer. For experiment 13 Ballistic Pendulum, we used the conservation of momentum and mechanical energy to determine the velocity of a ball as it is shot from a launcher. Ballistic pendulum lab report answers. For many years they have been used for keeping time. A pendulum is a weight suspended from a pivot (or fixed point) so that it can swing freely, back and forth. Rouinfar, September 2017. 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. Set up the pendulum and probes as shown by your instructor. (For your convenience the figure also shows the two components of w, one parallel to the string and one perpendicular to the string. Figure 1 shows the torsion pendulum and associated electronics. Answer the two lab questions listed below at the end of your lab report form. a piece of masking tape, a digital timer, and a meter stick. To conserve paper on the lab and also because I believe that further investigation would have. 7 without partial derivatives:. The role of the pendulum in tertiary physics studies Third year physics students are very familiar with certain aspects of pendulum behaviour. An experiment to find out the rigidity modulus of the suspension wire of a torsion pendulum in different environments. I'm do not know for sure sure what T^2 could stand for. It's easy to measure the period using the photogate timer. We'll start by looking at motion itself. Ap Physics Lab Report- Pendulum Essay. At its highest point (Point A) the pendulum is momentarily motionless. Prerequisites:. It's an imperative part of the arrangement procedure and enables the candidates to get thought concerning the kind of question paper and precisely what inquiries could be. You can vary friction and the strength of gravity. If the amplitude of motion of the swinging pendulum is small, then the pendulum behaves approximately as a simple. For the purposes of this activity, assume that there is NO friction of air resistance. The Pendulum Experiment is an experiment about gravity. This updated, mobile-ready PhET simulation provides an array of tools for analyzing energy transformation in a pendulum system. In between questions, make sure you have stopped the pendulum completely to clear any lingering energy from the last question. As preparation for lab, review your knowledge of the pendulum and write down the equation for g in terms of the pendulum length and period. A pendulum is any mass that swings back and forth on a rope, string, or chain. Now the real lab procedure from steps 12 to 18 can be followed to complete the observations for finding the acceleration due to gravity. It may be used for map dowsing, for instance. Pendulum diagram. Pendulums have a lot of interesting physics to discover. The potential energy, kinetic energy, and total energy of the oscillating pendulum can be displayed on a table, bar chart or graph. A D E B C Figure 1: A simple pendulum comprised of a thread (A) hanging from a nail (B) supporting a light hook (C) on which di erent masses (D) are hung. Objective. We then do some additional algebraic manipulation to solve for the mass of the Earth and get our equation in. A playground swing (Figure 1) is an example of a pendulum. 1 V S D=9/10 M S D=0. Pendulums (or pendula if we are being exact!) are a fascinating scientific phenomenon. Pendulum Lab Abstract: Pendulum is one of the most studied mechanical systems found in physics. Report your prediction in the form Rpredicted =. Pendulum Lab 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, and the amplitude of the swing. Also available are: open source code, documentation and a simple-compiled version which is more customizable. I wil assume it is the latter. Move the sensor away from the hanging pendulum bob Record your results and answer the questions in the Lab Report section. On the back of this sheet, put your pencil in one spot at the top of the page and move 11-01- Lab Report - Pendulum Lab Author:. What is the period of a simple pendulum? 4. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. More specifically, it demonstrates how potential energy can be converted to kinetic energy and back again. Time cannot be given in lab to perform PreLab activities. Lab Partners: Max McCandles and Vincent Mele Date of Completion: 03-24-14. Experiment 3 The Simple Pendulum Suggested Reading for this lab Read Taylor chapter 5. 2 Rotational Motion. 1 N/m2 = _____ dyne/cm2. How to Use a Pendulum for Dowsing and Divination: Answer Questions, Find Lost Objects, Heal Body and Mind, and More! [Bonewitz, Ronald L. INTRODUCTION: We will be shooting a steel ball into the bob of a pendulum at a certain height which is where the bob will get stuck at. Students design a plan to use only length measurements to predict the period of a conical pendulum. A simple pendulum consists of a mass on a string. The center of mass should be carefully marked. Objective: The objective of this lab experiment was to find the experimental value of the acceleration due to gravity “g”. The Ballistic Pendulum. With our newfound analysis, I had students answer the following question based on their "good" quadratic model (in our case above: ): (a) If your pendulum has a period of 1. Experiment title: Name: Instructors Name: The Simple Pendulum Amanda Reid, 16164167 Salim. Pendulum Lab, Reprise. * Make sure the top edge i. Contrast transverse and. The Virtual Pendulum is an application designed for the web, where a swinging pendulum will respond with answers as: The pendulum swings from left to right, the answer is probably no. Two pendulum with the same length of its cord but the mass of the second pendulum is four times the mass of the first pendulum. Pendulum Lab. It is so regular, in fact, that for many years the pendulum was the heart of clocks used in astronomical measurements at the Greenwich. Pendulum Lab Report, how to write the name of a restaurant in an essay, how to write a proper conclucion for a descripteve essay, if i should die before you wake essay. Experiment 4 The Simple Pendulum Reading: Read Taylor chapter 5. The dependent variable is. Weigh and record the masses of the pendulum m p and the steel ball m b. Derivation of time period of a Simple pendulum, treated as Ideal pendulum stipulates following conditions The cord on which the bob swings is mass-less, in-extensible and always remains taut. For large motions it is a chaotic system, but for small motions it is a simple linear system. It's easy to measure the period using the photogate timer. A playground swing (Figure 1) is an example of a pendulum. After the start of lab activities, PreLabs cannot be accepted. the simple pendulum. Record the mass in your lab report. Lab 12: Periodic Motion Objectives: • To devise an experiment to test variables that might affect the period of a pendulum • To carry out an experiment testing variables that might affect the period of a pendulum, including statistical analysis of the data. Kinetic and Potential Energy: Pendulum Lab Background Information: A pendulum can be made by placing a mass at the end of a string or a metal rod. The bar can be hung from any one of these holes allowing us to change the location of the pivot. The pendulum is the long piece below the clock face that swings slowly back and forth. Build a pendulum by bolting a threaded rod to a plastic box and adding weight to make the center of balance near the center of the box. The path from the equilibrium position (see diagram) to the point B, to the point A,. The period is the amount of time required for the pendulums mass to swing over and back. In this laboratory exercise, you will produce a position-time graph for a pendulum that you design yourself;. Other variables such as the angle of displacement were kept. In most of these experiments; Foucalt’s pendulum, Kater’s pendulum, phys-ical pendulum and coupled pendula, the amplitude is restricted to small angles so that the period is the familiar result, τ 0 = 2π s L g, (1). The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving. The pendulum is the long piece below the clock face that swings slowly back and forth. The Simple Pendulum: A prototypical Physics Lab 1. Study of Soft massive spring. there is no friction and 2. More Perfect is here to prove these three are more interesting than you think they are. Assignments. A collision between two bodies can be elastic or inelastic. The compound pendulum Consider an extended body of mass with a hole drilled though it. Measure the height from the floor to the bottom of the weight when it is at equilibrium and. Does the mass of the pendulum affect the time taken for the pendulum to swing? Does the length of the pendulum affect the time? LETS FIND OUT!! At least two lessons worth of investigations…. Also available are: open source code, documentation and a simple-compiled version which is more customizable. In a simple spring system, both mass and K value affect the period. Two experimental conditions were measured using 1) a simple pendulum and 2) a rotating table. Virtual Lab - Glencoe. Students explore the relationship between matter and energy by investigating force and motion, the structure of atoms, the structure and properties of matter, chemical reactions, and the interactions of energy and matter. Simple Pendulum Experiment, Scientific Lab Instruments, Educational Instruments, Testing Lab Equipment, lab measuring instruments, laboratory equipments, scientific instrument exporters, school laboratory instruments, laboratory equipment manufacturers, Indian lab equipment exporters. ) See all published activities for Pendulum Lab here. The errors that can affect the experiment are: the environment conditions, the measurement of the string, the amplitude or pullback distance of the pendulum, and the ruler that it's hanging from. Measurement of acceleration due to gravity (g) by a compound pendulum Aim: (i) To determine the acceleration due to gravity (g) by means of a compound pendulum. These values were ____% off the accepted value of 9. lab report, you have the data! Lab 13: Ballistic Pendulum Lab. Discuss this question in small groups and then report to the class. I will talk about how to determine the accuracy of your pendulum. Answers will vary. If we equate the two, we find that the mass of the object cancels. From the height reached by the pendulum, we can calculate its potential energy. Hooke S Law And Simple Harmonic Motion Adam Cap Ph202 Chapter 14 Solutions Section 14 1 Periodic Motion Harmonic Motion Worksheet Answers Inspirational Physics Physical Simple Harmonic Motion Cribme Physics Chapter 10 Section 2 Worksheet 1 Pendulum Lab Periodic Motion Simple Harmonic Motion. Where L = length of the simple pendulum. M hanging off a. Place two pieces of tape on the wall/other surface that are 50 cm apart with your weight in the middle. What is meant by Rigidity modulus? 2. The center of mass should be carefully marked. We'll start by looking at motion itself. The goal of the exercise is to measure the acceleration due to gravity, g, with an accuracy approaching 1 part in 104. Objectives: • Distinguish between kinetic and potential energy. Lab Report Template.

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