My experiment is studying the way in which a ball bounces and how much different types of balls bounce. Bouncing balls were originally made of natural rubber, though they are now made of plastics and other polymers and even treated leather. I have actually been a big fan of dover for a long time and my guess is you have too, only you may not even. Bouncing balls were originally made of natural rubber, though now bouncing balls can be made of plastics and other polymers or even treated leather. Under the influence of gravitation, interesting quantum phenomena such as collapses and revivals of the wave function may be visible.
Have each group set up a testing station and follow the directions on their. Determine how the drop height gravitational potential energy of a ball affects the bounce height kinetic energy of the ball materials 2 different ball types graph paper meter stick tape balance procedure follow the steps below to conduct your experiment. They will be dropping each type of ball 5 times from 100 cm and 200 cm and. Steps involved in making a bouncing ball with ingredients. To see more on this, visit writing better introductions.
Modeling a bouncing ball you are to drop a bouncy ball onto a hard, level floor and explore the relationship between the maximum height of the bounce and how many times it has bounced. Give each group a golf ball, tennis ball and rubber ball. Computer modelling enables them to relate the measurement results to the theory. The physics of a bouncing ball concerns the physical behaviour of bouncing balls, particularly its motion before, during, and after impact against the surface of another body. Students did as many trials as they wanted and then used their data to. What, if any, of your observations are indicative that a polymer was forming formed. With the help of a highspeed camera they can study the motion in detail.
In this case, the class was learning about energy transfers, transformations, and types of energy forms. A piston in the base of the instrument moves in response to a command waveform typically a sine wave. At the end ofthe experiment, everyone should use their calculators and figure the average bounce height for each ball inthe experiment. Bouncing ball experiment lesson plan for 8th 12th grade. Since each group uses a different ball, they generate different sets of data. It may come to a complete rest, for example if it were a ball of soft putty. Just be sure not to bounce it too high unless you are ready for a messy result. Simple projects using household recyclables by roz fulcher and published by dover publications. The bouncing ball simulator was first designed by a german company called telefunken. When a ball is dropped to the ground, one of four things may happen.
Bouncing ball problem and geometric series a motivating example for module 3 project description this project demonstrates the following concepts in integral calculus. Drop the ball 4 more times from 40 cm, recording the bounce height each time, for a total of 5 drops. You can store your plastic ball in a sealed ziploc bag when you are finished playing with it. Drop do not throw the ball from a carefully measured height using the meter stick. A hybrid dynamic system is a system that involves both continuous dynamics, as well as, discrete transitions where the system dynamics can change and the state values can jump. For a bouncing ball, the action is a ball falling against the ground with a force that is determined by the mass of the ball and the height from which it fell. Few independent variables will be changed, so the investigation is easy to manage, and the data is easier to process. This experiment requires a ball that will bounce and a meter stick or other measuring device. Here, the experiments measure the time evolution of the wave function of a quantum bouncing ball. A ball is thrown up with a velocity of 15 ms from a height of 10 m. For trials 27, repeat steps 5 and 6 but drop the ball from the height indicated in.
Repeat steps 35 two more times so you have three trials of data collected. In this experiment, we are going to turn a regular raw egg into a bouncy egg. Bouncing balls lab bouncing balls at different heights. For this activity, you are going to investigate the effect the. The experiment will investigate the bounce efficiency of a tennis ball when dropped from different heights. Repeat steps 3 and 4 but change the drop height to 1oocm, 10 cm and 200 cm 6. Several aspects of a bouncing balls behaviour serve as an introduction to mechanics in high school or undergraduate level physics courses.
The first time you drop the ball do not take a measurement, just watch where the ball goes so the next time the observer knows where to look. A bouncing ball model is a classic example of a hybrid dynamic system. However, the exact modelling of the behaviour is complex and of. However, this is unlikely within the scope of this experiment. The telefunken design was aimed for existed general purpose analog computers. The ground will then apply this same force to the ball, which causes the ball to bounce back up. At the end of the experiment, everyone should use their calculators and figure the average bounce height for each ball in the experiment. You have no used chemistry to make your own bouncing ball. The results of an analysis of two target surfaces used in a bouncing ball experiment are presented.
See the bouncing ball chart for an example of how to create the chart. In this paper, the dynamics of a bouncing ball is described for several common ball types having. This bouncing ball experiment lesson plan is suitable for 8th 12th grade. It is shown that if a ball is dropped onto a flat surface with an initial spin, or component of velocity horizontal to the surface, the ball will travel horizontally in one direction while it executes multiple bounces. Form a students were given a ball and needed to find a relationship between the balls drop height and initial bounce height.
Diy bouncy balls is a project from the book science around the house. This experiment is as old as the hills maybe even older. The bounce of a ball rod cross physics department, university of sydney, 2006 australia received 17 february 1998. As the mass of the ball is an important factor in this exploration, either have a balance available for student use, or find the mass of each ball prior to the experiment and mark each ball. Students drop a ball from different heights and measure the corresponding bounce. Roll the ball between the palms of your hands to mold it into a sphere. If there is disagreement about where to place the balls on the chart, redo the experiment to see which ball bounces the highest. Using slow motion to estimate the height of a bouncing ball experiment. The height to which the ball bounces is to be estimated as carefully as possible. Lesson to help any ks3 class get their heads around planning and carrying out an experiment. It may rebound with exactly the same speed as the speed at which it hit the ground. Pdf the bounce of a ball is a seemingly innocuous event that can be used to illustrate many aspects of elementary and even advanced mechanics. The bouncing ball experiment is a precision electromechanical instrument for investigating nonlinear dynamics. Balls have been toys for practically forever, but the bouncing ball is more recent of an innovation.
You can use chemistry to make your own bouncing ball. This help to greatly increase the accuracy of the experiment. In a laboratory activity students study the behaviour of a bouncing ball. Besure to perform 3trials, and allow time for team members torecord the data. Chemistry of bouncing balls how to make them in lab. Meter stick ping pong ball timer computer the purpose of this lab is to. Pdf of the energy of the ball during a flight between two collisions. How to make ice cream in a bag to get the scoop on how to do this activity, first download the recipe and then visit more than a worksheet where sara shares tips and ideas to make it easy. This is just a sample of how to record your results. Bouncing ball investigation essay bouncing ball investigation this is an experiment to investigate bouncing balls and how they behave in different situations. If you would like a detailed view of what happens, you can use a camera to film the experiment.
Once you understand the basic technique you can alter the recipe for the ball to see how the chemical composition affects the bounciness of the ball, as well as the characteristics. I am once again enthused to demonstrate borax bouncy ball experiment to all of you which we tried at home with my two little angels. Kids science fair project about the bouncing height of a ball. Pdf in this paper, the dynamics of a bouncing ball is described for several common ball types. Materials what you need to know american society for. Ks3 how science works bouncy balls practical teaching. Pdf the bounce of a ball is a seemingly innocuous event that can. A big heavy ball like a football a small light ball like a mini foam ball, or tennis.
In this lesson, students conduct a series of experiments with different balls to observe which bounce the highest and to. In the case of a bouncing ball, it represents the ratio of the final. Bouncing ball experiment by giselly zepeda on prezi. Numeric example in my experiment, the ball was dropped from a height of 6 feet and begins bouncing. The first independent variable that will be tested. Hypothesis independent, dependent, and controlled variables if we decrease the height of the drop of the ball, then the number of bounces will increase, because as the height decreases, the ball will reach the ground faster and faster every time because the height of the drop is. Almost everybody, at some point in their lives, has bounced a rubber ball against the wall or floor and observed its motion. Bouncing ball physics is an interesting subject of analysis, demonstrating several interesting dynamics principles related to acceleration, momentum, and energy. With this assumption, the equation of kinetic energy can be used to find the velocity.
Learning objectives state what a hypothesis is, describe the three variables, explain how you plan an experiment. The result will be an egg that feel rubbery like a bouncy ball and does bounce. I shall call this a completely inelastic collision. Explain what is happening in the experiment in relation to relevant theory. Bouncing ball investigation bouncing ball investigation this is an experiment to investigate bouncing balls and how they behave in different situations. Your findings might be different than those shown in the chart. Introduction balls have been toys practically forever, but the bouncing ball is a more recent innovation. A well designed experiment will have only one independent variable. Dover has kindly sponsored this post but all opinions are my own. When the bouncy ball is stretched, these polymer chains uncoil and straighten. Once the ball is no longer sticky, go ahead and bounce it.
Be sure to perform 3 trials, and allow time for team members to record the data. The bouncing ball analog computer introduction the goal of this project was to design and build a small analog computer called the bouncing ball simulator. Striking results with bouncing balls andre heck, ton ellermeijer, ewa k edzierska abstract in a laboratory activity students study the behaviour of a bouncing ball. Ball bounce lab investigating kinetic and potential energy. Five different kinds of balls, all of which bounce pretty well. For trial 1, hold the ball at a height of 40 cm, drop the ball carefully and observe the bounce height. When your ball bounces, it is squishing when it hits the ground, then unsquishing as it bounces back up. An elastic ball bounces on the piston and exhibits a surprisingly wide range of dynamic behaviors. Bouncing balls were originally made of natural rubber, though now they can be made from plastics and. Download fulltext pdf download fulltext pdf qbounce, the quantum bouncing ball experiment article pdf available in physics procedia 17. Drop a ball from 1 foot off of the floor, slightly in front of a yardstick.
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