This causes objects that are falling to increase in speed until they reach their terminal, or maximum, velocity or until they are stopped by another force, like. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Cvgs physics lab 06 investigation analysis of projectile motion using ip. I quickly removed the visual aspect of the program with your help of course.
A projectile is an o bject that once projected or dropped continues in motion by its own inertia and is influenced only by the downward force of gravity. Start studying physicslinear motion, speed, velocity, acceleration. Projectile motion lab rename or reorder a page via the settings menu next to the page name. Students are strongly encouraged to write their reports in the order detailed on the diagram above. The study of ballistic motion, particularly for projectiles, has a long and storied history. This notation is consistent with the course textbook, where xi and xf.
If any other force other than gravity acted upon the object then the object would not be declared a projectile. To ascertain that the parabolic motion of an object in two dimensions can be analyzed by considering the. If a ball is shot up in the air at an angle 450, it has a greater distance and velocity than a ball that is being shot horizontally at 00. Objective using the background information on projectile motion that you learned in class, you are going to design and conduct a projectile motion experiment. You will use two different methods to determine the velocity of the balls as they leave the. Includes the lab, a list of specialized equipment and a suggested lab writeup. Kinematic equations can be used to describe the components of projectile motion. We learn to shoot basketballs in an arc to swish through the basket or to bounce off the backboard. Understand that the horizontal motion and the vertical motion are decoupled. The purpose of this lab is to study the properties of projectile motion. The purpose of this lab was to predict the range of a projectile object, and we were able to do so with only a 0. Projectile motion is a common phenomenon that is used in introductory physics courses to help students understand motion in two dimensions.
In particular the relationship between the horizontal and vertical motions of objects launched horizontally from different heights. The purpose here is to convince the ta that you understood how the lab worked. Identify the major physics principle that you use in order to calculate the velocity of the ball as it leaves the ramp after. Projectile motion mercer university physics department. Physics lab report projectile motion physics lab report projectile motion. She has taught high school biology and physics for 8 years. In order to look at projectile motion, they need to first determine the launch speed of the ball.
We can divide v into its horizontal and vertical components. For a given initial velocity, the projectile range will be measured for various initial angles, and also calculated by applying the theory for motion with constant acceleration. The purpose of this lab is to study projectile motion of an object that is launched horizontally and drops a certain height before it hits the ground. In a twodimensional space, an objects position is given by a pair of numbers coordinates. The initial velocity or muzzle velocity the range for horizontal projection the range for projectiles. Physicslinear motion, speed, velocity, acceleration.
Using this setup, all three kinds of projectile motion horizontal. Full 5 with webs against homework in physics lab report projectile motion page quality service online the cant academic essay. Imagine that a ball is tossed across the room along an arc. Projectile motion \\triangleright\ find the motion of an object whose acceleration vector is constant, for instance a projectile moving under the influence of gravity.
Phet sims are based on extensive education research and engage students through an intuitive, gamelike environment where students learn through exploration and discovery. We have these projectile cannons that shoot small balls. Pasco spring gun, projectile yellow plastic ball, plumb bob, meter stick. Peoples physics book ch 41 the big idea in this chapter, we aim to understand and explain the parabolic motion of a thrown object, known as projectile motion. Projectile motion introduction in this lab you will study the motion of a freelyfalling projectile, namely a small plastic sphere. The following lab implementation was designed for use in my honors physics i and ap physics 1 classes and only represents one method of analyzing the video. Motion in two dimensions 2d, projectile motion, kinematic equations.
Pdf an experiment on projectile motion researchgate. The initial velocity was kept constant by stretching the balloon to a fixed length, which was 26 cm. In this lab, we will study projectile motion, which is a special case of twodimensional motion. Since, near the earths surface, the force of gravity causes masses to be accelerated downwards at a constant rate of 9. The projectile leaves the cannon at t 0 with a velocity v and an upward angle. By using a projectile launcher calculate the initial velocity of a.
Physics investigation analysis of projectile motion. This experiment presents an opportunity to study motion in two dimensions. For a given initial velocity, the projectile range will be measured for various initial angles. They also have an exciting visual demonstration of projectile motion when the lab is over. There are two standard ways to represent such a position. Physics 1050 experiment 4 introduction projectile motion is the special case of twodimensional motion experienced by objects only under the influence of gravity. Projectile motion the purpose of this lab is to study the properties of projectile motion. We will then predict the landing place of this same projectile by placing a piece of carbon paper. Projectile motion results when an object is subject to a single force. Example projectile motion lab report you may not copy the exact words here in any. Next, place an object like a smaller book at the end of the track to prevent the marble from.
Physics lab report projectile motion parts of an essay. Displacement is basically the shortest distance from the initial position to the final position. In this lab you will be examining data taken from the video entitled part 1 of 2 an introductory projectile motion problem with an initial horizontal velocity produced by flipping physics. We study projectile motion, which can be described as accelerated motion in the vertical direction and motion at uniform velocity in the horizontal direction. To understand the motion of a projectile in the earths gravitational field and measure the muzzle velocity of the projectile as it leaves the end of the spring gun. What are the horizontal and vertical components of its original release velocity. From the motion of a steel ball projected horizontally, the initial velocity of the ball can be determined from the measured range.
The object is called a projectile, and its path is called its trajectory. Use your lab notebook that you purchased in the book store and carefully plot by. Mac bookdata studious photogatesphotogates mounting bracketphotogate wirespaper targettapc clampmounting bracketlauncherball baringplastic container equations usedpercent differencechange in y projectile motion range equation experimental setupexecutionpotion the mounting bracket on the edge of a table. Projectile motion is the motion of an object thrown or projected into the air, subject to only the acceleration of gravity. The objective of this investigation is to make predictions about the behavior of a projectile. Provide students with a copy of the lab report format and rubric. The projectile motion equations these equations tell you everything about the motion of a projectile neglecting air resistance. In this lab, we want to measure the horizontal velocity of an object by measuring the distance between the area that the object is launched from, and the area where this object lands. The theory was formed based on prior knowledge on the physics of. Alternatively, click a pages name to rename it or drag a pages name to reorder it. While the projectile is in flight, only the force of gravity we are ignoring any air resistance is acting on the projectile. In this case, the kinematics equations give the results for the.
A freebody diagram is used to show which forces are acting upon the object. Physical measurements, university science books, 1982. Projectile motion is motion in two or more dimensions where the only force is gravity. In this lab measurements will be taken to determine the initial velocity of objects experiencing projectile motion. If you know the conditions yo, vox, voy at t 0, then these equations tell you the position xt, yt of the projectile for all future time t 0. An object launched horizontally with a velocity v x and dropping a height h, has the following relation between its horizontal distance traveled and v x. The kinematic equation rewritten with the projectile motion quantities is used as the starting point. I took the pmpm computational model program and made some minor modifications so that we were able to use the computing power of the laptops to do the work for us. This heart pounding scenario is one example of horizontal projectile motion. Objective to measure the initial velocity of a projectile when. Experiment 2 free fall and projectile motion physics.
To calculate the initial velocity, first just look at the vertical motion. General physics lab laboratory manual northwestern university. More physics experim ents using the m icrocon trollerbase. Calculate the horizontal and vertical distance to the target. Experiment 2 free fall and projectile motion objectives learn how to solve projectile motion problems. You should also take advantage of the help buttons if you need additional guidance.
Some physics phenomena are too difficult, expensive, or time consuming for a high school physics lab to explore. The motion of falling objects, as covered in problemsolving basics for onedimensional kinematics, is a simple onedimensional type of projectile motion in which there is no horizontal movement. Projectile motions lab abstract this lab for projectile motions will be investigating the properties of the x displacement of a projectile. Founded in 2002 by nobel laureate carl wieman, the phet interactive simulations project at the university of colorado boulder creates free interactive math and science simulations. Projectile motions lab investigating if the initial height. In this experiment, you will learn how to create your own projectile motion experiment in. This causes objects that are falling to increase in speed until they reach their terminal, or maximum, velocity or until they are stopped by another force, like hitting the ground. Physics lab report projectile motion best website for. Physics lab report projectile motion logan square auditorium. In this case it is convenient to choose a cartesian coordinate system with the y axis in the vertical direction along a line pointing towards the center of the earth and the x horizontal axis perpendicular to the y axis. Projectile motion mercer university physics department homepage.
In order to properly perform and calculate projectile motion we shot a ball out of a springloaded cannon clamped on the side of a table and using a piece of carbon paper laid over a piece of. This lab introduces students to the concepts of projectile motion, range, height, hang time and the law of projectiles using a handball projected from a lab table. Task 1 mass of the projectile you will use a simple balance to measure the mass of your projectile. Understand that the horizontal motion and the vertical motion are. Please address any questions or concerns by email to mr.
The change of the x displacement can be changed dramatically by any type of variable such as initial angle, initial speed, initial height, and air resistance but it is negligible. The time for projectile motion is completely determined by the vertical motion. I believe our calculations for velocity and distance from the trials at different angles give a good picture projectile motion. 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. Make sure you understand the projectile motion equations. Students will utilize formulated equations to determine theoreticalvalues of a projectiles position along a trajectory.
The initial velocity was kept constant by stretching the balloon to a fixed length, which was 26 cm, thus keeping the initial velocity approximately constant. So any projectile that has an initial vertical velocity of 14. The study of ballistic motion, particularly for projectiles, has a long and storied. For the physics teacher, or some such assuming that somebody else hasnt beaten me to it, at least. This video presents an example of finding the displacement or. Understand that the acceleration due to gravity is constant 9. We let y how far above the ground the projectile be at any time t. In other words, gravity pulls the projectile downward at a velocity of 32t feet in t seconds. Understanding errors and uncertainties in the physics laboratory.
Projectiles released at an angle will help you complete this worksheet. Physics 3 summer 1990 lab 1 projectile motion theory consider an object launched at time t o 0 at some angle. Projectile motion name section date introduction in this lab, we will study the motion of small plastic balls. Projectile motion objective the projectile motion experiment applies a working knowledge of kinematics for motion intwo dimensional space. Experimental data will be acquired and compared to the theoretical results.
The measured range was larger than the calculated range. Students will utilize formulated equations to determine theoreticalvalues of a projectile s position along a trajectory. Projectile motion 1 introduction the purpose here is to convince the ta that you understood how the lab worked. In this exercise you will be asked to first predict the motion of a ball, and then perform a test to see if your predictions match the results. A classic example would be a cannon being fired at an angle. Motion in one direction is unrelated to motion in other perpendicular directions. Neglecting air resistance, the only force acting on the projectile is the force of gravity and we have in essence a freely falling object see figure 1. Gravity is a force that causes acceleration towards the center of the earth at 9. Remember to have your calculator mode set to degrees not radians.
We will investigate 2d projectile motion, which can be described as accelerated motion in the vertical y direction and. The purpose of this lab was to measure the properties of projectile motion. Equipment projectile launcher and plastic ball measuring tape stopwatch task your experiment should be designed to investigate. Projectile motion, for our purposes, is the motion of an object that has been launched and then is subject to only the force of gravity and the force of air friction. So if you see the object moving 5 steps forward and 2 backward the distance from the objects initial position is 3 steps. Crooms physics lab 046 part 2 hit the target symmetrical projectile motion target practice now that you have a feeling for your launcher, it is time to shoot at a designated location.
A schematic of the apparatus is shown below you couldshould simply draw this by hand. A projectile motionintroduction inquiry based phet. In this experiment we were asked to perform a series of trials that involved projectile motion and in turn, were asked to analyze and draw several conclusions about projectile motion. Horizontal projectile motion is one of the most basic examples of classical physics. Once the object has been thrown, the only acceleration is in the y vertical or updown direction. Part 1 preliminary measurements tasks 1, 2, and 3 can be done at the same time by different members of your group.
During the experiment, the projectile launcher was elevated approximately 26 cm above the ground d y. The purpose of this lab is to explore projectile motion. How much time does the projectile spend rising to its apex. Projectile motion under the influence of gravity is a subject with which we are all familiar. Projectile motion occurs when an object in a two dimensional plane experiences motion only due to gravity. These two factors will give us a greater understanding of velocity in. Needlessly philosophical or lengthy remarks will cost you points. Projectile lab student you will shoot a projectile across the room using a rubber band and calculate how far it flies. Projectile motion lab write up projectile motion nikita.