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ballistic pendulum lab answers Initially the pendulum is at rest. 23 m/s while the average initial velocity for the projectile determination was 8. 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 $$20$$. If you plagiarise your lab report, the School of Physics is very likely to take disciplinary action against you. No attempt has been. Laboratory, though: because most experiments involve only a single. The angle indicator can be used to measure the maximum angle reached by the pendulum as it swings after the collision. Conservation. 1 mv = (m+M)V. The gun shoots out the projectile (ball bearing) into the bob, creating an inelastic collision. This is showing that length does affect the period of a pendulum. e. Be sure to show all of your work so that partial credit can be given. It’s unclear why we stopped using real rifles. D. Pre-Laboratory Work [2 pts] 1. In order to reduce error in the lab, the Flag Length could be measured to a smaller decimal place for when it travels in front of the photo gate. In this experiment, energy conservation and momentum conservation will be investigated with the ballistic pendulum. The ballistic pendulum is a device used to measure the speed of a fast-moving projectile such as a bullet. Name: Group members: Experiment Date. 3 kg wood block hangs from the bottom of a 1. As shown in the diagram, a bullet of mass 7. ‪Pendulum Lab‬ Energy/Momentum Ballistic Pendulum You will be presented with a object hanging from a string from the ceiling of a room. Theory:Kinetic energy is not conserved in a ballistic pendulum while momentum is conserved. The Simple Pendulum. A full report and diagrams plus analysis of projectile motion experiment, includes answers. The launcher fires a 1″-diameter steel ball (66 g) into the catcher (170 g), which swings to the right, to a height that depends on the momentum, and thus the initial velocity, of the ball. This is calculated as follows: h = L - L∙cosθ L = length of the pendulum to its center of mass (cm) Figure 1 7. Purpose: To use the ballistic pendulum to determine the innitial. A ballistic pendulum is a device which is used to arrive at the kinetic energy and velocity of a bullet. You do need to answer them in the report. Projectile Motion 2. , a simple pendulum). By measuring how high the pendulum would swing, one could determine the initial velocity of the bullet. A fluctuation in where the pendulum bob is released could have rendered the bob's velocity from staying constant. We use measurements obtained from a ballistic pendulum to review energy conservation, momentum conservation, and projectile motion. Completed lab reports with graphs and write up will also be used to check. Projectile Motion Lab Answers Introduction This lab will answer whether or not initial speed affects the time that a projectile is in the air. The block and rod form a pendulum that swings on a frictionless pivot at the top end of the rod. 0 g strikes a block of wood of mass 2. You will calculate the initial velocity of the projectile by measuring the height and range of the motion. Time graph. 2. Since the pendulum is initially at rest, the initial momentum and initial kinetic energy of the system (ball + pendulum) are given by equations (2) and (3). The report will be due at the end of 11th week. Emergency files for the two lab setups: Pendulum Ball Bounce. Also, it will be determined if there is a Phet Projectile Motion Lab: Lab Answers | SchoolWorkHelper LAB 3: Projectile Motion You will need a few formulas from Lab I to analyze the data in this lab. Picked own launcher setting (3rd setting) at exactly 0 degrees. This potential energy is equal to the kinetic energy of the pendulum immediately after the collision: KE = 1 2 M n P2 The momentum of the pendulum after the collision is just P p = M n P, A Ballistic Pendulum is used to determine the muzzle velocity of a ball shot out of a Projectile Launcher. Pendulums are used to regulate the movement of clocks because the interval of time for each complete oscillation, called the period, is constant. Homework Equations Conservation of angular momentum Writing a ballistic pendulum lab report is a challenge even for an expert, not to mention a college student. 4. Guidelines for success in writing a quality lab report. Conclusion Questions (Answer with your lab report). Lab 6 Ballistic Pendulum Lab 6 (See Chapter 7 and especially Example 7-10, p. The acceleration, or slope, of Velocity vs. During the collision, the bullet is embedded in the block. In a pendulum, the "spring" is the force of purpose of this lab was to test the simple harmonic motion exhibited by a pendulum, and. Lab Notebook Your lab notebook should represent a detailed record of what you have done in the labo-ratory. Section 3. In a pendulum, the "spring" is the force of purpose of this lab was to test the simple harmonic motion exhibited by a pendulum, and. docx) or MS Excel spreadsheet ﬁle (. If one is tempted to consider conservation of linear and angular momentum as a means for analyzing the data, consider this: The momentum of the swinging catcher decreases smoothly to zero at the extreme of the swing. Ballistic Pendulum A bullet of mass m is fired at a block of mass M hanging from a string. Find the magnitude of the constant force that slows down the bullet inside the pendulum and the (1) FIRING VELOCITY, BALLISTIC METHOD: Fire the ball into the pendulum catcher 5 to 10 times, recording which ratchet tooth the pawl stops at each time. Lab 13: Ballistic Pendulum Lab. (adjective) A ballistics lab; ballistics experts. Both prosecution and defense claim that "muzzle velocity" (speed of the bullet as it leaves the gun) is crucial to the case. The ballistic pendulum is a device that is used in the evaluation of a ball's velocity. Eugenio Panero. In shooting the ball, make sure that it is cocked to stage 3. Used equations to find muzzle velocity. Using the ballistic pendulum generally, they slowed the report people by placing lab things of in conclusion of the multiple muslin conductor. The moment of inertia of this assembly about its rotation axis through the pivot is I. Newton’s Potpourri Answers. This simulation can be downloaded fromGrantham’s Website; its file name is “BALLISTIC PENDULUMPO. the weight of the shot fired. 6%. You may be better off doing a little algebra on the test to consolidate key ideas directly relevant to the question. The simple pendulum lab report. xlsx). Lab Preparation There are three main concepts applied in this lab and you should review each of them. Than to a lab report; it is up to you to decide on the best use of your. Lab Manual: Appendix B. This lab tests the effects of different lengths of string on the period of a pendulum swing. The ballistic pendulum apparatus is shown in ﬁgure l. At its highest point (Point A) the pendulum is momentarily motionless. Nov. The unknown in the textbook example is the height to which the pendulum rises. ) 3. Lab 11: The Ballistic Pendulum Introduction: Most textbooks show a diagram of a projectile launched horizontally into a catcher or block. To determine the moment of inertia of a ballistic pendulum using conservation of angular momentum. With a ballistic pendulum, a ball is fired horizontally into a pendulum. 3. Also be aware of how to write up a lab report, using whatever criteria the teacher. The bullet is fired into a large block of wood suspended from some light wires. The Ballistic Pendulum. 2. Answer in the space provided. Adjusted Hertz in the Sample Rate Force to 500 Hz adjustment as to give us a more precise and accurate answer. OBJECTIVES . Answer in the space provided. Physics E-1a. General Physics Lab P209A. 1. The pendulum consists of a large block of wood suspended from long wires. For many years, police laboratories used ballistic pendulums to measure the muzzle velocities of firearms. The bullet embeds itself in the block, and causes the combined block plus bullet system to swing up a height h. The mass of the arm is provided on the board. To use the ballistic pendulum to determine the initial velocity of a projectile using conservation of. It can be used to measure any transfer of momentum. ” 2. Don’t use numerical quantities until you have to!] LAB 11 . Buoyancy Lab - Answers . 2. 10. Ballistic pendulum with ball and ramrod Meter sticks & tape measures, protractor, plumb bob, level Carbon paper and white paper Ballistic Pendulum In this experiment we won’t use the pendulum part, so leave it locked in the horizontal position Use the ramrod to push the ball against the piston until the Pendulum Lab – Proving the Deduced Equation: Log Rules: 1). Join Yahoo Answers and get 100 points today. Collisions. Introduction The laws of conservation of energy and momentum are among the most fundamental and useful laws of physics. For the first measurement, you will test this expectation by finding the period of oscillation at 3 different angles of release: $\theta=15^{\circ}$, $30^{\circ}$, and $80^{\circ}$. Explores the ballistic pendulum. If you need clarification ask the TA in lab. The results When the ball at the end of the string swings to its lowest point, the string is cut by a sharp razor. Essay on antigone tragic hero. THEORY PreLab: Ballistic Pendulum . One back and forth movement is called a vibration. After the ball hits the pendulum cup, the kinetic energy of the pendulum plus ball is converted into potential energy as they swing up and come to rest at a some height ymax. V is the velocity of the catcher and ball after impact, v is the velocity of the ball before impact. We have moved all content for this concept to for better organization. Task Test what will happen to the period of a pendulum when the Ballistic Pendulum– Prelab Quiz Answer these questions after reading the “Ballistic Pendulum” assignment. This activity serves as a lovely introduction to projectile motion. For the linearization we can use: "the experiment in lunching a ball against a pendulum and making an inelastic collision find the kenitic engergy and the inital velocity" Homework Equations I found all the answers and I assume the experiment in the moon would yield the same kenitic energy " I know the gravety is less but I also assuming the height of the combination would rise Guang Tian Chinese Academy At left in the photograph above is a ballistic pendulum comprising a PASCO launcher and projectile catcher. This physics lab activity is an introduction to Simple Harmonic Motion, utilizing. The angle indicator can be used to measure the maximum angle reached by the pendulum as it swings after the collision. For each detent, calculate the momentum of the ball just after it is ﬁred. Ballistic Pendulum Lab Report must likewise have the title, author, journal recommendation number, page referral, and a table of contents. Explain your answers. 3 Experimental setup for the pendulum experiment. 1-7- Ballistic Pendulum. ". About your lab report: Write your report in your lab journal. Ballistic Pendulum Lab. 75 m/s. It should have been expected that these two values would be equal. Measure the period using the stopwatch or period timer. Ballistic Pendulum Lab For Teachers 11th - 12th. The ballistic pendulum consisted of a large block, suspended by cords. 1: Ballistic Pendulum (Spring Gun) EQUIPMENT Pasco Ballistic Pendulum (Spring Gun) 2-Meter Stick Meter Stick Ruler Plumb Bob Carbon Paper Target Paper Launch Platform & C-clamps Wall Guards 25 Versions of the ballistic pendulum date back to 1742. One can test this by balancing the apparatus on a pencil. . input. 178) involves theballistic pendulum. Your job FIND IT! Shown below is a diagram representing a "ballistic pendulum. ) 2. Formal Report for Lab #8, Physics 4A by Bryan Campbell. BALLISTIC PENDULUM I. Points will be Conservation of Linear Momentum: the Ballistic Pendulum I. Lab 6 – Ballistic PendulumLab 6 (See Chapter 7 and especially Example 7-10, p. These laws say that if there are no net forces on a system, v = [(m + M)/m] [2gh]½ Answer: _____ m / sec. Experiment Description: When you pull the trigger, the steel ball embeds itself into the block, and the pendulum swings out to an angle, which is recorded by the angle indicator. SHM - Spiral Spring. Report Number 32. Average these and find the tooth corresponding to the average stopping position. In the second part of the experiment, the ball will be red into the ballistic pendulum shown above and Ballistic Pendulum In this experiment we will use a ballistic pendulum to determine the initial horizontal launch velocity of a plastic, foam dart. 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. There are two different experiments conducted separately seeking agreement as to the initial velocity of the same metal ball. Students would fire their guns at a wooden block suspended by a rope (i. THEORY The purpose of this experiment is to measure the velocity of a ball that is fired from a spring gun. Harmonic motion. PhysicsLAB: Ballistic Pendulum In this experiment we will use a ballistic pendulum to determine the initial horizontal launch velocity of a plastic, foam dart. Modeling the motion of the simple harmonic pendulum from Newton's. Experiment in a group (usually, two or more), but the laboratory reports will. 1, The Linear Track, what is the purpose of measuring the Average The ballistic pendulum is a device specifically designed for this activity. Physics projectile motion concerns the question your written law 7 pages. )2 Ballistic Pendulum - Theory D PE = MgR cm (1 cos q) Here R cm is the distance from the pivot point to the center of mass of the pendulum/ball system. 1 kg. Lab 6: Ballistic Pendulum. where M is the mass of the pendulum; Ballistic Pendulum– Prelab Quiz Answer these questions after reading the “Ballistic Pendulum” assignment. If the marble’s launch velocity were greater, would the pendulum reach a greater or lesser height? Why? 2. Physics 211 Experiment #12 Simple Harmonic Motion Experiment. Instructions: Prepare for this lab activity by answering the questions below. The laws of conservation of momentum and conservation of energy are used to derive 1. The formula for the period T of a pendulum is T = 2π Square root of√L/g, where L is the length of the pendulum and g is the acceleration due to gravity. The solutions for the tests, quizzes and the recommended problems will be provided in the Moodle site. , as always, momentum [both linear and Explores the ballistic pendulum. You must record two length measurements in your lab book. 1. As the catcher swings up a vertical distance, h, the stem pushes the white slider along the metal bar a horizontal distance, x. 23 while a graphical value of the acceleration of gravity was g=9. This helps to make it simpler for the trainer to see what info is needed. 178) involves the ballistic pendulum. Designing a real ballistic pendulum to measure the speed of a projectile involves more than the theory in the textbook. Test on Chapter 7 is Tuesday 1/15. In The First, We Use Kinematics Methods Alone To Determine A Mean Initial Lab: Pendulum Investigation Lab Partners: Mikey Haydt, Dakota Smith, and Bruce Herman Date: 19 December 2014 Ballistic pendulum We will now study a perfectly inelastic collision between a moving ball and a pendulum (the ballistic pendulum). Therefore, since the graphs yield the same answers to velocity and acceleration, the kinematic equations share a direct relationship to the graphs If the pendulum rises a maximum height of 0. The time it takes to complete one vibration is called the period. A pendulum is formed by a wooden block of distinct mass suspended from a string. The bullet of mass m is fired into that block. 1. Date _____ Using the value for Vo calculated from the ballistic pendulum, calculate the fractional loss in the kinetic energy during the collision. A complete laboratory report is not. Then we measured the distance from the pendulum arm pivot point to the point we found and recorded it as the distance to the center of mass (L). Ballistic pendulum, steel balls, mass balance, ruler or string, safety goggles for the launcher, momentum worksheets, energy worksheets. Student First Name Last Name Brock email Date of the Lab Experimental data. 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. The pendulum consists of a small block The answers to the two velocities match in both of the graphs. 178) involves theballistic pendulum. " A ballistic pendulum is a device that can be used to determine the velocity of a bullet. Replace the screw for safekeeping; measure with a digital scale (˙= 0:01 g) the mass of the ball mand ball/pendulum assembly M T; m= . 5. A rifle bullet with a mass m = 4 g is horizontally fired with a speed v 0 = 600 m s-1 into a ballistic pendulum with a mass M = 1 kg and a thickness d = 25 cm. (No calculation necessary. One missed lab out of ten will decrease your lab report portion of the final grade by. Under no cir cumstances should y ou tr y to lift or mo ve the entir e ballistic pendulum a pparatus b y the pendulum. 9 Ballistic Pendulum. 2 Ballistics Our ballistic pendulum is a device consisting of three parts: a spring gun, a ball that can be launched from the gun, and a cup at the end of a pendulum to catch the ball. The Simple Pendulum Acceleration of Gravity The Force Table Cantilever Beam Friction Center of Mass Ballistic Pendulum Rotational Motion and the Moment of Inertia Young’s Modulus and Torsion Modulus Archimedes Principle Hooke’s Law and the Effective Mass of a Spring In this lab, you will roll a steel ball off a ramp and let it \ tall onto the table. . Before we start the lab, I'd like to discuss the physics involved when the mass of the. The Ballistic Pendulum Before coming to the lab consider the online simulation at answer the following questions: 1. Show this calculation in your lab report. For instance, if your teacher needs to know your grade point average (GPA) in this lab experiment (e. The Ballistic Pendulum Lab Report By: Edgar Avalos, Elysa Chapa, Elyse Chapa, and Michael Foster Objective Our objective during this experiment was to accurately calculate the speed and distance that a ball would travel after being shot from a ballistic pendulum by using the law The average initial velocity for the ballistic pendulum was 6. A ballistic pendulum demonstrates the unique case in which an object in projectile will collide and stick with the pendulum, as demonstrated in Fig. As a result, the block moves up for certain height h until it stops. com 1. Ballistic Pendulum And Conservation Of MomentumFormal Report For Lab #8, Physics 4A By Bryan Campbell 1. Check to see if momentum and energy are conserved during a completely inelastic collision. To predict the final angular velocity of a ballistic pendulum. Its premise had long been known by the makers of munitions. 29 Nov 2014 - 5 min - Uploaded by Physics ShitEdunovus _ Physics _Screw Gauge(Diameter of a wire and thickness of a plate) practicals of. 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. To find the velocity after the collusion, we use a derivation of the equation KE=PE as shown below. The bullet is fired into a large block of wood suspended from some light wires. Analysis and the ability to author electronic lab reports. law, then comparing this with the small angle approximation model using MAT-. Join. Tags: breasts, freaks, London swings like a Pendulum do. If it is instead launched horizontally at the same speed, and it doesn't hit mountains or other obstructions, and air resistance can be neglected, will it still escape the earth? A varying, one-dimensional force acts on a 50 kg mass as shown in the following graph. Using the rotational acceleration, the ring's moment of inertia was found to be . The development of the ballistic pendulum was a significant event in the history of ballistics, allowing this field of study to advance significantly. ball/pendulum after the collision. Post- laboratory Questions and Exercises Name _____ Due after completing lab. given the equation to find initial velocity that i already solved for v = ((m+M)/m)*sqrt(2gL[1 - cos(theta)]) m= mass of bullet M = mass of block L = length of pendulum bob g = accel due to gravity PART B: An experiment is done to compare the initial speed of bullets fired from different handguns: a 9mm and a . After the cage catches the ball, the cage-ball system swings upward. Lab 9: The Ballistic Pendulum. After the start of lab activities, PreLabs cannot be accepted. 70m. It contains a swinging pendulum and a spring gun. 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. Ballistic pendulum We will now study a perfectly inelastic collision between a moving ball and a pendulum (the ballistic pendulum). ip”. You can measure the mass of the ball on the scales in the lab. In this lab you will study an inelastic collision using a Blackwood ballistic pendulum. You have to be smooth in the way you interact with your children. If the mistake was avoided, we could see what other error(s) affected the lab. The ballistic pendulum consists of a pendulum rod with trailing pointer, conic weight with knurled screw for ejecting the trapped ball. A pendulum only oscillates in simple harmonic motion if its maximum angle is small, since it relies. Submit your answers via Blackboard as either a MS Word (. The copyright for this video belongs to Independent School District 197 in Mendota Heights MN. The hall is immediately caught a distance below a frictionless pivot by a pivoted catcher assembly of mass M. Morrison and. Wednesday 1/9. Ph220 lab 6 ballistic pendulum 1. Section 12. Back to Course Page . The y value, report the uncertainty as ± 1 cm. The colliding bodies are a small metal ball, which is fired from a spring loaded gun, and a metal receptacle, or catcher. This became the instrument that would be used to fire the projectile for this lab . Chapter 4 . A typical simple pendulum consists of a heavy pendulum bob (mass. (b) apply the. The laws of conservation of momentum and conservation of energy are used to derive the equation for the muzzle velocity. Invented in 1742 by Benjamin Robins to measure the speed of bullets, he soon realized that. PASCO offers two different projectile launchers. 1. Worked example 7. Use the pendulum to find the value of g on Planet X Derive equation 3 and show that the path of the projectile is parabolic Answer from PHYS 2126 at Houston Community College . (a) state the physics principles used in ballistic pendulum problem. Use the average angle value in the calculation. A ball will be fired into the box and the box will swing back to a certain angle. Chapter Q & P Solutions . 55 J, passes straight through the 400 g Styrofoam pendulum block. Time cannot be given in lab to perform PreLab activities. The ball will be fired into the ballistic pendulum (shown in Figure 1) and by properly analyzing the collision between the ball and pendulum and the swing of the pendulum to a Since a ballistic pendulum experiment typically involves the use of the bullet and bob, it's often considered unsafe to perform this experiment amidst students in a normal physics class. Use a ballistic pendulum to demonstrate the conservation of momentum in a totally inelastic collision. 1-7- Ballistic Pendulum. So the pellet's original energy is divided between the pendulum gravitational potential a ballistic pendulum, a 30 cm ruler, a meter-stick, a projectile-catching box, masking tape, white un-ruled paper, carbon paper, an equal arm balance. Homework Solutions. Lab Activities: • Vector Adventure Lab. In this pendulum lesson students complete a lab activity, answer questions and complete a data table. Ballistic Pendulum . What is vo, the speed of the bullet before it hits the block? Ballistic Pendulum Lab. The launcher is powered by a spring that, once compressed, can launch a small metal ball toward the pendulum. by knowing the weight of the pendulum with its target. 10. View Lab Report - LabReport2 from PHYS 1101 at University of Houston, Victoria. A ballistic pendulum is a device used to measure the speed of a bullet. this demonstrates conservation of momentum with the ballistic pendulum and also projectile motion. Plus, we could perfect where we drop the pendulum bob from to start its swing in order to improve the intended initial Velocity. Students will use a ballistic pendulum apparatus to determine the initial velocity of a projectile just as it leaves a gun. 5: Ballistic pendulum Question: A bullet of mass strikes a pendulum bob of mass horizontally with speed , and then becomes embedded in the bob. 03/09/2017 The Ballistic Pendulum Introduction In this experiment, the launch speed of a steel ball was determined The Ballistic Pendulum Crime Lab Physics You are a criminologist, and have been given a gun which has been used in the commission of a crime. Since the pendulum is initially at rest, the initial momentum and initial kinetic energy of the system (ball + pendulum) are given by equations (2) and (3). Make trial shots as necessary to determine range. After the collision, the bullet is embedded in the wood block and the wood block swings upward. DOC Experiment 1-F Ballistic Pendulum and Projectile Motion Lab Report. Create a foam insert that can catch the metal sphere projectile. Initially, the pendulum is at rest. Answer and Explanation: After completing this lab, you will be able to explain A ballistic pendulum is a device for measuring a bullet's momentum, from which it is possible to calculate the velocity and kinetic energy. Solve the equation for v 0. To determine if kinetic energy is conserved in an inelastic collision. Find the figure and discussion in your book and look at it before lab. 1. The center of mass should be carefully marked. As mentioned above, the pendulum equation that we want to test is valid only for small angles of $\theta$. 0 Abstract In This Paper, We Aim To Validate One The Most Important And Frequently Used Tools Of Physics: The Law Of Conservation Of Momentum. A rocket fired vertically at a speed of 11. The bob is free to rotate in the vertical direction. Theory: The Kinematic equation rewritten with the projectile motion quantities is used as the starting point. Put together the ballistic pendulum lab. A Ballistic Pendulum is used to determine the muzzle velocity of a ball shot out of a Projectile Launcher. See full list on myphysicslab. At the start of rising, the ball and catcher were together at the bottom of the pendulum, and had kinetic energy just after the collision. When a projectile is shot into the wood, the block begins to swing in a pendulum-like motion. Lab Report – Activity 13: Simple Harmonic Motion–Pendulum. descriptive name Ballistic Pendulum. The angle indicator should read close to zero when the pendulum is hanging in the vertical position. Ballistic pendulums have been largely rendered obsolete by modern chronographs, which allow direct measurement of the projectile velocity. At that time, all the energy that later turns to potential, is kinetic. Explain your answers. Ballistic Pendulum, steel ball bearing, mass scales, and meter stick. The slope of the graph was 0. M-5 Torsion pendulum and torsion lathe. 3 kg, 1. Time cannot be given in lab to perform PreLab activities. 53mm, how much kinetic energy did the pellet have after emerging from the Styrofoam? In a ballistic pendulum demonstration gone bad, a 0. (2) KE intermediate = (1/2) (m+M) (v ball-catcher. Ballistic Pendulum Goal: Apply conservation principles to the motion of a ballistic pendulum to determine the velocity of a projectile, and to predict the range of that projectile when launched horizontally from a tabletop. Questions for the lab report are listed in the Teaching Tips and Guiding Questions section. 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. 2 km/s will escape the earth. and Fig. 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. 13. Theory. – Ballistic Pendulum Physics Lab Report. Figure 4. Figure 4. Observe the energy in the system in real-time, and vary the amount of friction. For the vertical motion of the ball we have the equation Y = 0. Next, you will use conservation of energy and momentum to again calculate the initial velocity of the projectile. The pendulum experiment beyond the usual small-angle oscillations. What are the kinds of questions on the lab report sample? These are typically used to check the trainee’s understanding of the product. See Figure 4. Hand them in at the start of lab. We solve for the time and get t = (2Y/g) 0. These exercises will also familiarise. From the measured recoil speed of the pendulum we determine the speed of a ball fired by a spring-loaded cannon. Points will be Ballistic Pendulum 1 KW 3/20/19 Introduction: The ballistic pendulum is a pendulum with a device on the bottom end that “catches” a projectile from some type of launcher, and then converts the kinetic energy transferred to the catcher at the bottom of the swing, to gravitational potential energy as it swings up to a maximum height. Bring the printed manual, a copy of the completed prelab assignment and these Brief Notes to lab. Figure 7. Time graph is the same as the y-value, or acceleration, of the Acceleration vs. Lab Ballistic Pendulum posted Apr 16, 2013, 6:06 PM by Jean-Marc Samson [ updated Apr 16, 2013, 10:02 PM ] Figure 4. Cool appleﬁ from Rubin i—l Landau's site . To avoid lengthy and time-consuming laboratory reports, most experiments will be completed, including the report. In the pendulum experiment, the period of the pendulum is measured. 2 depicts the system of the ballistic pendulum in which an object is launched with the assistance of a spring and collides with the pendulum, which is aligned to a protractor. . thesis or dissertation This lab is based on a Direct Measurement Video called A Ballistic Pendulum: Marble Collides with Pendulum released on the Science Education Research Center (SERC) website. The ballistic pendulum is a device used to measure the speed of a fast-moving projectile such as a bullet. You will use a ballistic pendulum apparatus, shown in Figure 2. Background: We used to teach this lab with live ammunition. Be sure to show all of your work so that partial credit can be given. K. Students are strongly encouraged to write their reports in the order detailed on the diagram above. The ballistic pendulum is a classic method of determining the velocity of a. Answer all questions that were asked in the Lab Manual. A data table. Use the pendulum to find the value of g on Planet X Derive equation 3 and show that the path of the projectile is parabolic Answer from PHYS 2126 at Houston Community College The ballistic pendulum is a classic in the Physics lab with an impressive military hisiory. This simulation can be downloaded fromGrantham’s Website; its file name is “BALLISTIC PENDULUMPO. Note that this is a PreLab. Remove the pendulum from the apparatus. PEgravity = mgh When a pendulum is pulled back from equilibrium through an angle θ, its height is calculated with the formula h = L - L cos θ where θ is the angular displacement Ignoring friction and other non-conservative forces, we find that in a simple pendulum, mechanical energy is conserved. The momentum of the system before and after the collision must be the same (i. Lab Report/PHYS 224. Ballistic Pendulum Supplementary Notes Part I m = mass of the ball (Kg) M = mass of the catcher (Kg) V 1 = initial velocity of the ball when it leaves the gun. ip”. To use a ballistic pendulum to determine the velocity of a projectile. Our full-sized Projectile Launcher offers selectable ranges of 1. and the distance the The ballistic pendulum is a device used to measure the speed of a fast-moving projectile such as a bullet. 1. 7. Ballistic pendulum lab report answers. This collection of notes is NOT a lab manual! We are not attempting to provide you with a recipe for the completion of each lab. You do not need to answer the questions posed in the lab your lab book now. CAUTION: for your protection and for the good of the equipment, please check with the instructor before turning on any electrical devices. This is intermediate since it is after the collision, but before rising. A 2. The purpose of this lab was to determine the moment of inertia of the ring. Ballistic Pendulum Apparatus. Bearing and measuring the free-fall time with a pendulum of known period. This simulation can be downloaded from Granthams Website; its file name is BALLISTIC PENDULUM PO. Ballistic pendulum, device for measuring the velocity of a projectile, such as a bullet. The rst method consists of ring a ball horizontally from the tabletop by measuring the range of the ball. [3points] Write an expression for the uncertainty in the moment of inertia –I using Equation 3. 25: 1. 55 g pellet, fired horizontally with kinetic energy 3. The ballistic pendulum (Figure 1) consists of a gun which fires a small ball into a pendulum. Lab Preparation There are three main concepts applied in this lab and you should review each of them. So what you'll need is the velocity of the Begin with the potential energy of the pendulum at the top of its swing: ∆ PE = Mg ∆ h cm Where M is the combined mass of pendulum and ball, g is the acceleration of gravity, and ∆ h cm The long pendulum arm and a small swing about a small angle help in the approximation of the simple harmonic motion. Conservation of Energy. It works on a very simple physical principle. 5 (m 1 +m 2 )v 22 = (m 1 +m 2 )gh 3 } it was possible to find the speed of the pendulum + the projectile. The bullet goes through the pendulum and leaves it with a speed of v 1 = 100 m s-1. We have moved all content for this concept to for better organization. 2) where M = mass of the pendulum and v f is the velocity of the pendulum/ball moving together. Using the conservation of mechanical energy { (m 1 +m 2 )gh 2 +. G Ballistic Page 4/20 Ballistic pendulum We will now study a perfectly inelastic collision between a moving ball and a pendulum (the ballistic pendulum). A 12 g bullet is fired into the block, where it sticks, causing the pendulum to swing out to a 35 degree angle. Purpose. The ballistic pendulum is a device used to measure the speed of a projectile, such as a bullet. To what has this loss of energy been converted into? Derive Equation ( 6 ). Click here to downloadPH220 Lab 6 Ballistic PendulumLab 6 (See Chapter 7 and especially Example 7-10, p. If the reading using something called a “ballistic pendulum. After the start of lab activities, PreLabs cannot be accepted. When a bullet is fired into the bob, its momentum is transferred to the bob. Pendulum Lab This lab tested which factors aect a pendulum s period The results show that string length signicantly aecrs the. After the collision, the block-bullet swing up 53º. Such motion is called projectile motion. The lab reports and lab exam (which is worth the equivalent of two lab reports) count. Experiment: 1. Ask Question + 100. Specific Heat. In Sections 3. Chapter 3 . Ballistic Pendulum Problem · Ballistic Pendulum Calculator · Ballistic Pendulum Lab Report. physics. hit the ﬂoor as predicted from a single pendulum measurement, x = (m+M) m q 2gh q 2y=g which reduces to x = (m+M) m 2 q hy (7) Note that g cancels out. Physical pendulum experiment setup and procedure. Using the marble velocity calculated in part 2, calculate the KE of the marble right before the collision. [3points]Consider the uncertainty expression given in Equation3. Ready the pendulum by removing it from the latched position and allow it to hang freely. They aid in the solution of many mechanics problems and come up frequently in many fields of science. The AP physics frameworks emphasize that students show their ability to reason mathematically. #1 will be based on the lab report. The bullet embeds itself in the block. Ballistic Pendulum Lab Report need to be organized by chapter. In this lab you will study an inelastic collision using a Blackwood ballistic pendulum. For a usual simple pendulum I do not see where your external force should come. A ballistic pendulum is a device for measuring a bullet's momentum, from which it is possible to calculate the velocity and kinetic energy. . Taylor Section 5. EQUIPMENT . A bullet of mass m is fired at a block of wood (mass M) hanging from a string. We check this Ballistic Pendulum Lab Purpose: Develop a description of the ballistic pendulum collision by applying conservation of momentum to determine changes in velocity of the ball and pendulum and Theory A ballistic pendulum is a device that can be used to measure the speed of projectiles using both conservation of momentum and conservation of energy. The ballistic pendulum is a device used to measure the speed of a fast-moving projectile such as a bullet. In the lab, students observe the motions, describe and make predictions, and get acquainted with basic. If the reading Ballistic Pendulum Physics 211 Lab There is a stem that protrudes down from the catcher. 1. Ballistic Pendulum. Ballistic Pendulum 2. For the length, we used the silver mass each time and used a constant length of the pendulum of . A steel ball of definite mass is then fired towards the block, in a horizontal direction. Due after completing lab. 5gt 2, where down is positive, t is the time of flight, and g is the acceleration due to gravity. Nov. It must be turned in at the start of the lab period. A ballistic pendulum is a device for measuring a bullet's momentum, from which it is possible to calculate the velocity and kinetic energy. Theory: To determine the velocity of a ball, a ballistic pendulum can be used. In a ballistics lab, a 10-gram bullet is shot into a 2-kg block of wood suspended by a 1-meter rope from the ceiling. To verify this velocity by measuring the range of the projectile. The first method will use conservation of momentum and conservation of energy while the second method will employ horizontal projectile motion. Links for lab report. Determination of Velocity from Collision In the typical use made of a ballistic pendulum, a projectile, having a small mass, m, and a horizontal velocity, v, strikes and imbeds itself in a pendulum bob, having a large mass, M, and an initial horizontal velocity of zero. Using energy conservation, determine the KE of the marble and pendulum system right after the collision. OBJECTIVES. 8%. 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. What eﬀect would this have on v1? 3. This gave a percent difference of 13. Conservation of Momentum Answer AP style multiple choice questions related to impulse, momentum, and conservation of momentum. 1. In this lab, you will be using a device called a ballistic pendulum to produce projectile motion. The first method will use conservation of momentum and conservation of energy while the second method will employ horizontal projectile motion. Note that this is a PreLab. Answer to Projectile Motion Experiment: motion of projectiles under theinfluence of gravity. Ballistic pendulum lab report answers. 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. range θ1 θ2 θ3 θ4 θ5 <θ> δθ θ(rads) δθ A ballistic pendulum, as shown in the figure, was a device used in the past century to measure the speed of bullets. We repeated this measurement five times. Laboratory Text: Wimbush, Lab Manual for 231-232, web page:. A pointer on the pendulum indicates its center of gravity. Lab 3. 5. Answer to Simple Pendulum Lab Experimental Procedure The goal of this experiment is to determine the period of oscillation of a si. More to explore "Pendulum Lab" from the University of Colorado at Boulder's PhET project. 7744. In the ballistic pendulum experiment, your students will be able to. In a physics laboratory you do the following ballistic pendulum experiment: You shoot a ball of mass m horizontally from a spring gun with a speed v. 3 “Ideal Projectile Motion”. From conservation of mechanical energy applied to the ball-pendulum system: E = K + U = (1/2) (M+m)v2 + (M+m)gy. Kinetic energy, KE = 1/2 m * v^2 Basically the pendulum should be slowed by the collision, that is it'll lose velocity and therefore kinetic energy. The height to which the block (plus embedded projectile) rises is a measure of the speed achieved Ballistic Pendulum Goal: Apply conservation principles to the motion of a ballistic pendulum to determine the velocity of a projectile, and to predict the range of that projectile when launched horizontally from a tabletop. Experiment 4: The Ballistic Pendulum. Used for demonstrating the laws of conversation of momentum and trajectory. To prepare for the calculation of the muzzle velocity using conservation principles, consider the following questions: Checkpoint 12. Ballistic pendulums have been largely rendered obsolete by modern chronographs, which allow direct measurement In this lab, you will use a ballistic pendulum apparatus to investigate whether momentum is conserved when two objects collide. The horizontal component of the velocity is constant and equal to the initial velocity V B, making X = V B t. Then using the conservation of momentum {m1+= (m 1 +m 2 )v 2 } the speed of only the projectile (V 1 ). Lab 10: Measuring Gravity with a Pendulum. Please update your bookmarks accordingly. For the ballistic pendulum ex-periment, the projectile launcher from the projectile motion laboratory is mounted horizontally so that the pendulum can catch the emerging steel ball. The apparatus should be clamped to table side. 0. The catcher + steel marble swing up after the marble is fired into it. The kinetic energy would be KE= ½mv2,where m is the mass of the pendulum, and v is the speed of the pendulum. Features a nylon block pendulum with tapered rubber insert, leveling and adjusting screws on both pendulum and base, and a rubber bumper to prevent damage on impact. this demonstrates conservation of momentum with the ballistic pendulum and also projectile motion. A bullet of known mass is shot into a wood block of known mass. K(final) = ? Joules Please show your work and make sure to express the answer in Joules Thanks 2. We are to investigate l (length), v0 (initial velocity), and mass m and M in order to find h (height), v' (final velocity), and theta (angle measure). Test the principles of conservation of linear momentum and mechanical energy for a completely inelastic collision. The bullet remains embed PreLab: Ballistic Pendulum Instructions: Prepare for this lab activity by answering the questions below. 1: Ballistic Pendulum (Spring Gun). · Transfer all answers to the Lab 4 Answer sheet. For the ballistic pendulum ex-periment, the projectile launcher from the projectile motion laboratory is mounted horizontally so that the pendulum can catch the emerging steel ball. Initially the ball is moving but the pendulum is not. I guess you have to assume no energy was lost due to styrofoam breaking away and flying across the lab. Ballistic Pendulum The ballistic pendulum is a classic example of a dissipative collision in which conservation of momentum can be used for analysis, but conservation of energy during the collision cannot be invoked because the energy goes into inaccessible forms such as internal energy. One example of this motion is the simple pendulum; a mass m, connected to a rod or string of length l. QUESTIONS 1. The bob is initially at rest, and is suspended by a stiff rod of length and negligible mass. This is an inelastic collision, in contrast to an elastic collision where energy is conserved. What does ballistics mean? Of, relating to, or engaging in the study of ballistics. 3: The cm of the pendulum + ball is just above the cylinder of the pendulum. You may use g = 10 m/sec 2. The ring's geometric moment of inertia was . 1: Orienteering. It must be turned in at the start of the lab period. For this lab, however, the unknown is the velocity of the bullet. The ballistic pendulum consists of a spring gun that fires a metal ball, and a pendulum with a “cage” that catches the ball after it is fired. (m/sec) V 2 = velocity of the ball and catcher after the collision (m/sec) h 2 = vertical height at the lowest point (m) V 3 The sources of errors in a simple pendulum experiment are the following: 1. Assume that the ballistic pendulum was not held ﬁrmly to the table when it was ﬁred. Statics, continued, Lab 7: Ballistic Pendulum. Note there is a. Related searches for Ballistic Pendulum Demo. Pendulums— Part 1— Answer Key Pendulums swing back and forth in a regular pattern. This is a percent difference of 33. The angle indicator should read close to zero when the pendulum is hanging in the vertical position. Oommen George 11 months ago 10 minutes, 25 seconds 3,346 views Application of conservation of momentum to find the velocity of a bullet fired into a heavy , pendulum , . The spring gun is designed to fire a ball of mass (mb) with an initial velocity (vi). The purpose of this lab is to derive a special case special case projectile motion and use in to determine the range of the shot. 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. human errors comes in when measuring the period using a stopwatch. Free Fall Using Impact Pad Use balls of various masses and an impact pad and timer to investigate the relationships between the mass, position, velocity, and acceleration of a free-falling body, and to determine a value for the gravitational acceleration. BALLISTIC PENDULUM. 6) your conclusions, based on the results of your experiment, as to how successfully the motion. 3. The ballistic pendulum shown in Figure 1 and the muzzle velocity will be To use a ballistic pendulum to determine the velocity of a projectile. This document serves as your lab report. Part 2: Shooting the Ball. #3 (M4) -- Ballistic Pendulum. The device has two main components: the projectile launcher and a pendulum (see diagram). The experiment should start quickly after moving the bob. conservation principles. Answer the conclusions to the Ballistic Pendulum lab. Carefully remove the pendulum with steel ball embedded from the apparatus. This pendulum is a massive block of mass M suspended on the rope. Contacting the pendulum in any way while trying to move or lift the entire apparatus may cause damage to the pendulum. To determine the physical characteristics of the ballistic pendulum apparatus: remove the pendulum arm from the ballistic pendulum assembly by unscrewing the pivot screw. The acceleration of gravity from the calculation was g = 9. Ballistic Pendulum and Projectile Motion PHY 200 & 230 Lab PDF. M is the mass of the pendulum and m is the mass of the projectile. Calibrated the setup to match center of gravities to closest possible. The practical application of conservation of energy, specifically mechanical energy, and momentum conservation are brought into perspective in this experiment to help in the determination of ballâ€™s velocity during its ejection from a launcher. Theory In this experiment an inelastic collision will occur between the ball and the ballistic pendulum arm. This physics video tutorial explains how to solve the ballistic pendulum problem where a bullet is fired at a hanging wooden block. Conceptual physics projectile satellite in motion answers. 0824. e. [Here is an important lesson: An analysis should becarried to the end using only symbols and mathematics. Weigh the pendulum support containing the steel ball on a top-loading balance. It is also the initial velocity of the ball before the collision. , “Did you ascertain right? “), then the answers to these EXPERIMENT 9 – Ballistic Pendulum . Purpose: The purpose of this lab was to find the velocity of a ball inside a swinging pendulum when fired out of a launcher at different velocities. answer them. Arefin Lab: Ballistic Pendulum Md Arefin Section D773 Professor Gelbord 1 Arefin Objectives In this laboratory In this lab, we are to discover how the momentum of a projectile is to affect the final momentum in a pendulum. 1 & 4. The Launchers. Lab: The ballistic pendulum, Exam 3. To find the speed with which the ball is shot out from the ballistic pendulum, first use the x = vot + ½ a t2 formula to find out how long the ball was in the air. The pendulum of a ballistic pendulum was moved back so that it would not get in the way of the firing mechanism. A large wooden block suspended by two cords serves as the pendulum bob. Physics 4A- Lab. The bullet is fired into a large block of wood suspended from some light wires. The reaction time of Ballistic Pendulum . After the ball is fired it is caught by a pendulum with foam inside and swings up changing kinetic energy to potential energy. Below, we had to use linearization to create the length vs period graph, so, we squared the period. 3. Using the value for Vo calculated from the ballistic pendulum, calculate the fractional loss in the kinetic energy during the collision. A conical pendulum is a pendulum that is spun round in a circle instead of swung backwards and forwards. 5, 1, and 2 m and the ability to fire it downward with launch angles from -45° to 90°. 2, 3, or 5 m and launch angles from 0° to 90° and our Mini Launcher is great for table top experiments with ranges of 0. November 11th, 2011. In a ballistic pendulum experiment, a small marble is fired into a cup attached to the end of a pendulum. Bring a laptop: You may want to replay parts of the video in lab. The catcher hangs at the end of a rod. Title Page. In its simplest form, the ballistic pendulum is a block of wood, hanging freely on ropes or wires and initially at rest. 000582kgm2. Q1: Give two non-trivial systematic errors for part one of this experiment. DOC Experiment 1-F Ballistic Pendulum and Projectile Motion Lab Report. Laws of Thermodynamics The center of mass of the pendulum (with ball) was found by balancing the pendulum on the edge of a meter stick until the pendulum (with ball) remained balanced. Please update your bookmarks accordingly. Measure the period using the stopwatch or period timer. the ballistic pendulum using conservation of linear momentum and conservation of energy considerations. There are required prelab exercises in the document (2 for PHYS100, 3 for PHYS120). Formal Report for Lab #8, Physics 4A by Bryan Campbell. The . 8 ballistic pendulum and accurately launch angles and calculations. To determine the initial speed of a projectile using conservation of energy and momentum. Objective: In this exercise you will investigate conservation of energy and momentum in the case of a perfectly inelastic collision using a ballistic pendulum. Trending Transfer all answers to the Lab 4 Answer sheet. The pendulum was released from $$90$$ and its period was measured by filming the pendulum with a cell-phone camera and using the phone’s built-in time. This resource manual outlines the basic expectations for each lab, the use of some (but not all) of the important equipment and software, and other miscellaneous information that may prove useful. The bullet is fired into a large block of wood suspended from some light wires. 000507kgm2. PH220 Lab 6 Ballistic Pendulum. Based on Loyd #13. Discussion a. Ballistic Pendulum Lab Report must be formatted. View Lab Report - Lab on Ballistic Pendulum from PHYS 1 at NYU. AP Physics Workbook 5. The receptacle is also the bob of a simple pendulum. There is a ruler on the top of the metal bar that you can Trial x use to measure x. We Do So By Comparing Results From Two Experiments Conducted With A Single Ballistic Launcher/pendulum Apparatus. ballistic pendulum lab for inelastic collision? Get your answers by asking now. The pendu-lum and cup can be moved out of the way. 10 from the assignment. In this lab, you will be using a device called a ballistic pendulum to produce projectile motion. Use with the Ballistic Pendulum experiment. (Assume an isolated system. Manually find the pendulum hammer's center of mass and radius (in Data section). Solids, Liquids & Gases. Ballistic pendulum We will now study a perfectly inelastic collision between a moving ball and a pendulum (the ballistic pendulum). Physics 120: Lab 6 The Ballistic Pendulum In this experiment you will determine the muzzle speed of a gun using a setup called a ballistic pendulum. Measured velocity and force of the cart using the force and motion sensor on Data Studio. ip. Since the pendulum is initially at rest, the initial momentum and initial kinetic energy of the system (ball + pendulum) are given by equations (2) and (3). Part I. 1 Pre-Lab Considerations ¶ You can do the two parts of this lab in any order; but it will help lab go more smoothly if you answer the following questions before you come to lab. Ballistic Pendulum Name: Partnerâ€™s name: Date due: Date performed: * Abstract. kg M Lab report You add this to the lab report for lab 7. 44 caliber. Impulse & Momentum . Review and study the FRQs solved in class. View Lab Report - Lab Ballistic Pendulum from PHYSICS 101 at New York University. g. What was the value of the kinetic Read PDF Ballistic Pendulum Lab Report Answers Ballistic Pendulum Lab with data by Dr. If you must lift the entire apparatus, lift the apparatus by grasping the base and the very top of the support. Observe the energy in the system in real-time, and vary the amount of friction. 2) Place a stainless steel ball in the spring gun and ready it for firing by using the ramrod. Basic Part 2: Potato Gun Ballistic Pendulum A clever way to measure the velocity of a very fast projectile (like a potato out of a potato gun) is to fire it into a more massive pendulum and measure the highest point in the swing. Since the pendulum is initially at rest, the initial momentum and initial kinetic energy of the system (ball + pendulum) are given by equations (2) and (3). 1) Record the mass of the pendulum arm and the ball. 3 meter long rod. The ballistic pendulum was used in older days to measure velocity of bullets. Lab Course #-Section # Physics Laboratory Report. Lab 11-4: Ballistic Pendulum side 1 Purpose: 1. Projectile Motion Exploration. The Ballistic Pendulum Physics 110 Laboratory In this experiment you will determine the muzzle velocity of a gun using two di erent methods. Spring semester 2017, Phys1101 General Physics 1, Section 001, Sylke Boyd . Answer this question as clearly and thoroughly as you can in an hour. Chapter Three: Energy & Conservation. In the pendulum experiment, the period of the pendulum is measured. Background. ballistic pendulum lab answers 