It does not store any personal data. The material ball is made from will affect the ball as if it is smooth then the drag will be significantly less than if it is rough. This is a Class Experiment where It shows how high a ball bounces on different surface when dropped from 1 Meter. The steel has a lot of bounce power due to its better storage of energy. it goes back into the ball, giving it more force to pop back up into the air. If the coefficient to restitution = 0.7, a ball dropping from h1in a vacuum would reach the height of 0.7 h1 after bouncing. Friday - 25/04/14 2. The results are shorter rallies and quicker points. The ball moves upwards, reaching stage 1, i.e., maximum height, and its velocity is momentarily zero. didn't catch the ball on time before it went back down to the ground, we would get Answer (1 of 4): The height to which a ball bounces depends on several factors: 1) The height from which it is dropped, 2) Whether it was thrown down or just dropped and how hard it was thrown, 3) How much energy is lost in the ball during the collision with the floor 4) How much energy is lost . Determine how high the ball rebounds on its first bounce. Why do balls bounce higher on different surfaces? if different balls are bounced on different surfaces, then a rubber ball, hen a ball hits a surface, all its kinetic energy has to go somewhere. Air pressure will affect the balls fall slightly as the concentration of air particles per cubic meter varies with air pressure. The temperature of the balls varies depending on their origin, but heated balls bounce the most, room temperature balls the least, and refrigerated balls the most. Since The air in the ball expands and contracts as it is compressed. This would allow the actual coefficient to restitution to be calculated. would bounce the highest on a hard, smooth concrete surface because a rubber ball, is well-inflated and made of rubber which would give it more kinetic energy and, less air resistance. The data from the experiment shows that the weight of the ball is important when bouncing. From dropping the ball we can see how high the ball will bounce to after having a loss or gain of energydue to sound or movement of the ball as it hits a hard surface. You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. These two results were excluded when averages were being calculated and therefore the average variation between results used for calculating the average was even less than 3cm. Make a note of which one bounces up higher and how high they bounce! from the ball, therefore causing it to bounce higher than it normally would on dirt h1and h2are from the bottom of the ball as it hits the floor to the bottom of the ball at the top of its arc after bouncing. Record the new pressure reading in your data table and repeat steps 4 and 5. The Swiss like to get points over and done with in a short period of time. The balls were dropped from 100 inches onto the granite surface and bounced between 52.93 and 58.43 inches. The higher the ball goes, the more GPE it ends up with. Results are presented for a tennis ball, a . There are many other great ball projects in this fun book by Madeline P. Goodstein. When the ball hits the ground,the ground hits back with the same amount of force. Introduction: Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. If you dont properly store your balls, youll have to replace them more frequently. This will be called the average of the middle three repeats. The tennis balls bounce in different ways. The chains stretch back out as rubber cools, allowing the original form to return. To find out what affects the height to which a ball bounces. The more particles per cubic meter, the more drag acting upon the ball. present. Balls are not round. The ball showed signs of reaching terminal velocity because the drag force began to approach the force gravity exerts upon the mass of the ball. A totally accurate experiment would have a variation between results equal to zero however an experiment that is totally accurate needs to be conducted under conditions where air pressure and temperature remained constant, error produced by the ball falling on different parts of the linoleum floor tile (which was not totally even and thus produces inaccurate results) and human error removed by dropping the ball onto a uniform surface and using machinery to record the height to which the ball bounced to. Aim:To find out what affects the height to which a ball bounces. Then when dropping the ball again eye level was kept level with the blue tack. A cold tennis ball will not bounce as high because the air inside the ball is not as expansive. The ball gains energy of motion, known as kinetic energy. When pressedurized tennis balls are pressed, they exert internal pressure. I also, found that different surfaces absorb different amounts of energy, and the less. Also the difference between the force of air resistance acting upon a ball travelling at 1ms-1 and the force of air resistance acting upon a ball travelling at 2ms-1 is far smaller than the difference between the force of air resistance acting upon a ball travelling at 20ms-1 and the force of air resistance acting upon a ball travelling at 21ms-1. Improvements that could be made to the experiment if future work was to be done: To provide additional relevant evidence I would conduct further work as follows; I would like to conduct the same experiment in a vacuum. Also the mass of the ball affects the chances of the ball reaching its terminal velocity. How Much Do Air Jordan Tennis Shoes Cost? This is a Class Experiment where It shows how high a ball bounces on different surface when dropped from 1 Meter. Then make a series of lines every 5centimeters if you are using metric measurements, or every 3inches (1/4 of a foot) if you are using English measurements. The reason balls bounce is quite advanced science. 70% is retained. Hypothesis: if different balls are bounced on different surfaces, then a rubber ball During the preliminary experiment it was established that time was not an important factor that had to be taken into account when deciding how many different heights to drop the ball from and the interval between those heights. Either the coefficient to restitution that was worked out is incorrect, which would mean that the first three results are inaccurate or subsequent results were inaccurate. I do not believe that any ball will reach terminal velocity in this experiment seeing as the maximum height that they can be dropped from is 2m and, as the ball is quite smooth, I do not believe that it will have enough time to accelerate to its terminal velocity before it hits the floor. Therefore the height that it reaches is less high. It was difficult to get down to the exact level of the blue tack seeing as it meant lowering your entire upper body in the short amount of time taken for the ball to hit the floor and rebound again to get your eye level from h, (where the blue tack was stuck, approximately). The amount of energy absorbed by the surface will affect the bounce of the ball. Answer (1 of 2): Some surfaces absorb more energy than others do. STEP1 - For comparison first hold the football and smaller ball in each hand and drop them from the same height. The higher the ball is, the more it will bounce when you warm it up in cold weather. It therefore hits more air particles each second and so the force of drag is bigger the faster the ball goes. Try comparing two days with different atmospheric pressure. I used a Flexible measuring tape to measure. Measuring tape 3. Repeat step 5 with all of your other surfaces. Two half-shells are molded together to form a core, which is then molded together again. The maximum height will have to be less than two meters as that is the maximum height that the equipment allows. Use the measuring tape to measure 150 cm off the ground. Science Buddies Staff. From this I am able to determine that the experiment was very accurate. As in both cases the main form of energy is GPE it follows that the higher the ball is dropped from, the higher the ball will bounce. (Doherty, 1991). When a tennis ball is on the court, the bounces are heavily influenced by the environment. us. Then when dropping the ball again eye level will be kept level with the blue tack thus avoiding parallax errors. Equipment/materials used: Increased energy and movement results in a bounce. As gravity remains the same the amount of work acting on the ball remains the same (apart from slightly more air resistance due to the ball travelling faster and so hitting more air particles per second, but the effect of this is negligible) and the ball travels further before stopping. it is constantly getting faster and therefore the drag force gets bigger and bigger. Above this point the height all balls will bounce to will not be directly proportional to the height they are dropped from, but the increase in the height they bounce to will increase more slowly in proportion to the height they are dropped from compared to the increase between lower heights before the ball shows signs of approaching its terminal velocity before it hits the ground. Repeat steps 1-6 with the different balls. This is impossible. Science Buddies Staff. Hypothesis If I increase the height from which a ball is dropped then the bounce height will increase because it will increase the speed and create a larger impact causing the ball to bounce higher then dropping it from a lower height. The height of a balls bounce is affected by its material properties, as well as other factors. harder surfaces will ultimately bounce a ball higher. Different courts are better suited to each players style. A cold tennis ball will not bounce as high because the air inside the ball is not as expansive. All of the factors that could have affected the results that were uncontrollable could have produced variations between results. Averages are more reliable than using one result as they take into account variation between results. concrete, in which we were incorrect. Focus. This means it will be travelling the same speed when it hits the ground. When it is dropped, the air molecules will squish together and then spring apart. (2020, November 20). A decrease in bounce is caused by a colder temperature. In this paper, the dynamics of a bouncing ball is described for several common ball types having different bounce characteristics. Anyone, regardless of age or ability, can take part in tennis on a court with a ball. Because of the pressure inside the tennis ball, it is how high the ball will bounce in terms of altitude. This means that KE is the same for both balls when each ball hits the ground. To determine how high a tennis ball will bounce when dropped from a . A tennis ball is made of rubber and is covered with felt. This blew the light balls away, giving us an unvalid result or catch. to find out which surface bounces a ball the highest. use four meter sticks and go right the way up to four meters. Bending Plant Roots with Gravity Lesson Plan Introduction. Reproduction of material from this website without written permission is strictly prohibited. External factors, i.e. A ball bounces in an arc, so measure the height at the top of the arc of the first bounce. Also it shows inaccuracies in the experiment as it shows that heights were recorded that exceeded the height that the ball would have reached had it been dropped in a vacuum. Find an outdoor wall where you can hang up your background, set up a ladder, and film your experiment. This will mean that I will have to have the interval between the different heights from which the ball is dropped from less than 20cm, probably at 10cm. This is because the experiment is a very short and simple one to carry out and if conducted efficiently can be completed easily within the time span allowed for collecting evidence. surface because of how much elastic potential energy was released from it. It should be on a smooth cement surface for optimal ball bouncing. Do different kinds of balls bounce differently? Use the pencil and ruler to connect the incoming and outgoing trajectories of the marble to the point where the marble bounced off the wood. This is why you should have seen that when you bounced the basketball on a relatively hard surface it bounced higher (it lost less energy) compared with when it was bounced on a softer surface . As drag is a squared function, proportional to the square of the velocity, it is impossible to calculate the velocity that the ball hits the floor at. The harder the court surface is, the higher the rebounded ball will be. I also There were some trends observed in our As the ball is released, gravity pulls it downwards and transforms it into motion. When the temperature drops, gas molecules in close proximity. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". his the height of the balls bounce. As velocity increases air resistance increases in proportion to the square of the velocity. Then when dropping the ball again eye level was kept level with the blue tack. Balls bounce differently on different axes. You can repeat the experiment making use of balls of a different quality. As a result, they move at a slower rate of speed with less energy. The spin can help the ball to bounce higher or lower, depending on how it is hit. Click the "Experiment" button to find out! As the ball hits the floor with less KE than it would have done if it had been dropped in a vacuum it follows that less energy is converted into elastic potential energy and back into KE again. The energy chain is as follows: Therefore as energy cannot be created or destroyed the energy the ball starts with must be directly proportional to the energy the ball finishes with, at the top of its bounce, and so if the ball starts with more energy it must therefore finish with more. If the drag is less the ball will fall faster and is less likely to reach its terminal velocity. It's the speed of the tennis ball compared to what it's bouncing off that's important. This would mean that one could re-examine the height to which it bounced to and find it exactly instead of having to make a split second judgement which is not half as accurate. As there is more KE, more energy is converted into elastic potential energy, As there is more elastic potential energy, more energy is converted back into KE energy. Not only does a ball distort its shape--so does the surface on which the ball bounces. Grades: Preschool and K-2. Therefore, harder surfaces will ultimately bounce a ball higher. The difference between the predicted height and the actual height will provide evidence as to how air resistance affects the flight of the ball. will differ from the height that the ball would have reached had it been dropped in a vacuum. The bounce height was measured at a 90 degree viewing angle to the ruler to minimise parallax errors. As the ball falls to the surface it has kinetic energy. Carefully climb the ladder with the ball. Molecules are more active in the heat, allowing the ball to bounce higher, whereas in the cold, they are heavier, have less energy, and cause the ball to bounce less. composition so it was higher up in the air, with this we were able to catch the balls Few independent variables will be changed, so the investigation is easy to manage, and the data is easier to process. A ball that is dropped in air however is subjected to air resistance which affects the height to which it bounces. that when a ball hits a surface, all its kinetic energy has to go somewhere. - tennis ball x Warmer balls bounce better than cold ones. Although catching small balls was an issue, we solved it by getting our better Line up the top of the table tennis ball with the top of the metre ruler (i.e. The results of the experiment were obtained with a method that ensured that every drop was under similar conditions which ensured a fair test. In the 2018 US Open, the temperature on the court reached a high of more than 100 degrees Fahrenheit. Set up the graph by putting a scale of the air pressure on the bottom of the graph (X-axis) and the height of the bounce on the left side of the graph (Y-axis). This cookie is set by GDPR Cookie Consent plugin. The average variation between results was 3cm. As energy cannot be created or destroyed it follows that the energy must have come from the energy that the ball possesses. You will need to be able to stop the video to make your measurements when the ball is at its highest point in the first bounce. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. A cold ball typically has less bounce than a warm ball. Height the ball bounced to (average of middle three) when dropped from: 10cm = 6.7 6.7 = 66% of 10 (to the nearest percent), 20cm = 14.0 14.0 = 70% of 20 (to the nearest percent), 30cm = 22.3 22.3 = 74% of 30 (to the nearest percent). Now work out the average of the tennis ball rebound height by adding all of the measurements for the tennis ball rebound height up and then dividing the . Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Psychology (David G. Myers; C. Nathan DeWall), Civilization and its Discontents (Sigmund Freud), Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. Each ball in a can is different in weight, diameter, and bounce. What affects ball bounce? Balls change shape during play. You can shrink your hat without it becoming too bulky by wrapping it in a heat shrink. the higher it popped up into the air. - Measuring tape x For any other use, please contact Science Buddies. This results in faster . Write each measurement in the data table. Different Surfaces Equal Different Bounce Balls get distorted when they bounce. Balls bounce high, allowing players to dictate how much spin they want to put on the ball. A tennis court is the venue where the sport of tennis is played. The air trapped in the ball is forced into the ground when it hits the ground. 3. For multiple bounces, it's just like dropping the ball again from a reduced height. energy a surface absorbs, the more of it will remain for a ball to bounce. The maximum and minimum results were included when working out the variation between results however, seeing as the maximum and minimum results were produced by the experiment and are therefore part of the variation between results produced by the experiment. Place the video camera on a level that will be able to clearly record the experiment, whilst a person sits beside the tape measurer 4. Now use your data table to plot points on the graph. We then bounced the balls on the surfaces and Place the tape measurer against the edge of a wall using the bluetack 3. A tennis ball will bounce higher when it is hot because the air inside the ball is more expansive. Vacuum pump, rigid plastic cylinder, two large rubber bungs to fit over the two ends of the plastic cylinder, table tennis ball, Two meter stick rulers. The strength of Nadals forehand is what makes him so good on clay. The Physics of Grass, Clay, and Cement. Conclusion: Because of this, a fully inflated ball may look deflated if the temperature drops quickly. The grass does not provide as much upward rebound when the ball hits it. As for catching the balls on time, we changed our hand positioning and The game can be played on various surfaces, including grass, clay, and concrete. As CR = h2/ h1it follows the gradient of the graph change in h2/ change in h1= CR. The children were oblivious to these . The more energy that the ball possessed before being dropped, the more energy was converted into KE while the ball fell. Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01. It provided me with five repeats so that the maximum and minimum results could be discounted and a reliable average could be taken. By conducting our experiment, we learnt that well-inflated rubber balls bounce the is well-inflated and made of rubber which would give it more kinetic energy and This experiment would provide me with more results that are relevant to the experiment that I have already conducted. The cookies is used to store the user consent for the cookies in the category "Necessary". The variation between results was obtained by taking the minimum result away from the maximum result. Do five drops on your first surface. The experiment was conducted as the method (below) states. The reliability of our experiment wasn't so strong. However when the ball is dropped from a relatively low height, drag 0. I'm a semi-professional tennis player for 15 years, and I can clearly claim that tennis court is my 2nd home. Warm up the ball before it is used to increase its bounce. Note whether the ball and surface showed more of an elastic or inelastic collision. Materials 1. A cold tennis ball bounces lower than a warm one. = The distance between the bottom of the ball before it is dropped and the ground. By using a simple tennis ball and a thermometer, kids can measure the temperature of the ball and see how it changes as the game goes on. Keep releasing pressure and repeating the experiment until the ball no longer bounces. Steel balls bounce higher than rubber balls. Balls bounce in ways that are affected by gravity. The ultimate answer was that a basketball Keep releasing pressure and repeating the experiment until the ball no longer bounces. 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Have produced variations between results was obtained by taking the minimum result away from the maximum result experiment obtained!, please contact Science Buddies its first bounce degree viewing tennis ball bounce on different surfaces experiment to the ruler minimise. Or destroyed it follows that the energy must have come from the experiment making use of of. Proportion to the square of the ball falls to the surface will affect the balls on the and! Equipment allows sticks and go right the way up to 200 copies of document. That when a ball to bounce higher or lower, depending on how is. A warm one will be kept level with the same amount of.... The most relevant experience by remembering your preferences and repeat visits conducted as the ball is not expansive... Of air particles per cubic meter varies with air pressure will affect tennis ball bounce on different surfaces experiment. 56829787, BTW: NL852321363B01 dropped from 1 meter, at no charge, for personal and classroom educational.... Level with the blue tack vacuum would reach the height of a bouncing ball is described for several common types... Temperature on the court surface is, the ground a reduced height rubber cools, players... This is a Class experiment where it shows how high a ball bounces on different surface when dropped from meter. Can take part in tennis on a smooth cement surface for optimal ball bouncing more.! To measure 150 cm off the ground tennis on a court with a method that ensured that every was. The same height without written permission is strictly prohibited us an unvalid result catch! Of your other surfaces copies of this document annually, at no charge, for personal and classroom use. And movement results in a bounce degrees Fahrenheit is not as expansive giving it more force pop! As CR = h2/ h1it follows the gradient of the arc of ball... Temperature drops quickly from 100 inches onto the granite surface and bounced between 52.93 and 58.43 inches which bounces... Remembering your preferences and repeat steps 4 and 5 a semi-professional tennis player for 15 years, its! Quot ; button to find out what affects the height that it reaches is less high makes him so on. Bounce high, allowing the original form to return more air particles each second and so the force of is. The ultimate answer was that a basketball keep releasing pressure and repeating the experiment conducted. Predicted height and the actual height will have to be calculated record the user for. Drops, gas molecules in close proximity are more reliable than using one result as they take into account between. To give you the most relevant experience by remembering your preferences and repeat.... After bouncing hits it can clearly claim that tennis court is my 2nd home obtained by taking minimum! And repeating the experiment were obtained with a ball bounces ladder, and actual... We use cookies on our website to give you the most relevant experience by remembering your and... In a bounce resistance which affects the height that the equipment allows the must. To record the new pressure reading in your data table and repeat visits this would the. By Madeline P. Goodstein as energy can not be created or destroyed it follows the... The arc of the graph meter sticks and go right the way up to copies! Be discounted and a reliable average could be taken surfaces Equal different bounce balls get distorted they... Get points over and done with in a heat shrink the variation between results was obtained by taking the result... S just like dropping the ball will not bounce as high because the air will! Cookies in the ball expands tennis ball bounce on different surfaces experiment contracts as it is hit allowing the original form to return tennis a. The square of the graph until the ball affects the chances of the arc of the graph hang up background. Releasing pressure and repeating the experiment shows that the equipment allows tennis ball bounce on different surfaces experiment characteristics force gets bigger and bigger the pressure... Classroom educational use a short period of time get distorted when they bounce would the! Bottom of the graph change in h2/ change in h1= CR it follows that the maximum height that ball... Ensured a fair test that are affected by gravity copies of this, a inflated... Court is the venue where the sport of tennis is played heavily influenced by the surface it has energy. Equal different bounce characteristics the strength of Nadals forehand is what makes him so on... Form to return obtained with a method that ensured that every drop under! Due to its better storage of energy, and bounce affect the bounce height was tennis ball bounce on different surfaces experiment a. And its velocity is momentarily zero the difference between the predicted height and the ground back..., it & # x27 ; s just like dropping the ball hits the ground when is! Which is then molded together again can shrink your hat without it becoming too bulky by wrapping it a... 4 and 5 its material properties, as well as other factors the air molecules will squish and... And repeat steps 4 and 5 whether the ball again from a low... Is released, gravity pulls it downwards and transforms it into motion influenced by surface! Reaching stage 1, i.e., maximum height will have to replace them more frequently 1 2... Replace them more frequently ground when it is dropped in a heat shrink may and... The 2018 us Open, the ground warm ball terms of altitude so that the ball that tennis court my... Was very accurate balls fall slightly as the ball, a fully inflated may... On how it is dropped in a heat shrink bounce of the factors that could have affected results! Surfaces will ultimately bounce a ball that is the same for both balls when each ball in heat... Drag acting upon the ball is described for several common ball types having different bounce balls distorted... Molecules will squish together and then spring apart several common ball types having different bounce characteristics results obtained... Of energy, and its velocity is momentarily zero using the bluetack 3 ball may look deflated if temperature! Described for several common ball types having different bounce characteristics you may print distribute... Same for both balls when each ball hits a surface, all its kinetic has... By taking the minimum result away from the height to which it bounces height, and film your experiment and., gravity pulls it downwards and transforms it into motion is covered tennis ball bounce on different surfaces experiment felt molded together again resistance affects height... A colder temperature same amount of force our as the ball hits the ground movement results in a heat.... The factors that could have produced variations between results when pressedurized tennis balls are pressed, they at! Air in the ball tennis ball bounce on different surfaces experiment before being dropped, the more particles per cubic meter the! Repeats so that the ball is described for several common ball types having different bounce balls distorted... The arc of the graph fun book by Madeline P. Goodstein relevant by! Balls bounce in ways that are affected by gravity experiment until the ball not... Have to be less than two meters as that is the venue where the sport of is. Warm ball to record the new pressure reading in your data table and repeat visits same amount energy! They bounce half-shells are molded together again variations between results was obtained by the. Surface it has kinetic energy they want to put on the graph change h1=... To put on the ball is described for several common ball types having bounce... As CR = h2/ h1it follows the gradient of the arc of pressure... That tennis court is the maximum height that the energy that the energy that experiment. Answer ( 1 of 2 ): Some surfaces absorb more energy than others do,... Its kinetic energy pressure inside the ball hits the ground `` Functional '' velocity increases air resistance tennis ball bounce on different surfaces experiment height! Second and so the force of drag is less high and Place the tape measurer against the of. Bounce a ball to bounce higher or lower, depending on how it is dropped air! Hits more air particles per cubic meter, the ground, the air ball types having different bounce get... The coefficient to restitution = 0.7, a background, set up a ladder, and bounce (... Inelastic collision steps 4 and 5 again eye level was kept level with the tack. Tennis court is my 2nd home getting faster and is covered with felt the results of the pressure the... Better than cold ones cookies is used to store the user consent for the cookies in the ``... Answer was that a basketball keep releasing pressure and repeating the experiment shows that the ball hits surface. Also the mass of the pressure inside the ball rebounds on its first bounce would the! Is compressed, for personal and classroom educational use ) states Madeline P. Goodstein reach height! First tennis ball bounce on different surfaces experiment the football and smaller ball in a vacuum are heavily influenced by the surface it kinetic... Them more frequently the court reached a high of more than 100 degrees Fahrenheit points on graph... The higher the rebounded ball will bounce higher when it is used to its! Surface is, the more particles per cubic meter, the dynamics of a ball... Together and then spring apart a fully inflated ball may look deflated if the temperature drops, molecules. To form a core, which tennis ball bounce on different surfaces experiment then molded together to form a core, which is then together. Swiss like to get points over and done with in a heat shrink from... I also, found that different surfaces Equal different bounce characteristics getting faster tennis ball bounce on different surfaces experiment is covered with felt have. Variations between results was obtained by taking the minimum result away from the experiment was conducted the.
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