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. How can you measure the height a ball bounces? 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. Reverse Engineering: Ball Bounce Experiment Hands-on Activity Reverse Engineering: Ball Bounce Experiment (2 Ratings) Click here to rate Quick Look Partial design process Grade Level: 4 (3 - 5) Time Required: 1 hours 45 minutes (2 or 3 class periods) Group Size: 3 Subject Areas: Students investigate balls and their bounce copyright Summary It shows that heights were recorded that exceeded the height that the ball would have reached had it been dropped in a vacuum. Then when dropping the ball again eye level was kept level with the blue tack. Aim: to find out which surface bounces a ball the highest. present. Explanation: When all three balls are dropped from the same height, the rubber ball will bounce the highest because it has the greatest elasticity. When I drop the different balls onto the rocks from the bed of a truck, I believe the tennis ball will have the highest bounce. When it reaches Earth, it collides head-on with an . C. The tennis ball is made for more of a bounce when it is used for the game tennis. This proves that the higher h1the more h2will differ from the height that the ball would have reached had it been dropped in a vacuum. Science Buddies Staff. h1will start at 2m and then move down in intervals of 10cm to 10cm. Different factors affect a ball's efficiency, temperature, surface area and surface material are just a few. This is why basketballs typically require nine to twelve PSI of air, and why balls used in professional and college games require twelve to thirteen PSI of air. The same square of tiling will be used throughout the experiment so that inconsistencies between different floor tiles do not affect results. One way to measure the amount of air that is in a ball is with an air pressure gauge. it goes back into the ball, giving it more force to pop back up into the air. When printing this document, you may NOT modify it in any way. When the air inside the ball expands, it pushes against the rubber and causes the ball to bounce. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies ensure basic functionalities and security features of the website, anonymously. 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. 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. This will be called the average of the middle three repeats. Therefore the energy that the ball hits the floor with = mh, The proportion of energy lost when ball hits the floor = The Coefficient to the restitution of the two objects (C, All of the energy that the ball leaves the floor with is converted back into GPE, If dropping a ball in a vacuum all you need to know in order to know how high the ball will bounce to is h, can be found out by looking at a graph, the gradient, as a percentage of 1 gives the amount of energy conserved and therefore C. The clamp stand will be clamped down to the desk using a g-clamp to prevent it falling over and causing possible injuries. The balls bounced higher on the concrete The data from the experiment shows that the weight of the ball is important when bouncing. Answer (1 of 2): Some surfaces absorb more energy than others do. Repeat steps 1-6 with the different balls. Although we had all these challenges, We use cookies and those of third party providers to deliver the best possible web experience and to compile statistics. What material makes a ball bounce higher? Launch Related Video : The Hawk Factor. If the coefficient to restitution = 0.7, a ball dropping from h, in a vacuum would reach the height of 0.7 h, As velocity increases air resistance increases in proportion to the square of the velocity. Balls bounce up to 5 . The ball shoots back up after being slowed down. The experiment was conducted as the method (below) states. carpet, tennis 57 cm 56 cm 61 cm 58 cm The ball starts at height h, No energy is lost when the ball is falling; there is no air resistance, so no Thermal Energy is produced. balls and surfaces will ultimately be the best combination for bouncing a ball high. When printing this document, you may NOT modify it in any way. If you like this project, you might enjoy exploring these related careers: You can find this page online at: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Phys_p039/physics/balls-bouncing-off-of-surfaces. A ball that is dropped in air however is subjected to air resistance which affects the height to which it bounces. 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. Use the pressure gauge to release some of the air pressure from the ball. - Paper x 30% of the energy that the ball hits the floor wit is lost. Overall, our experiment taught us that harder The force of the ball hitting the ground causes it to bounce up, because it puts an equal force on the ball. from the ball, therefore causing it to bounce higher than it normally would on dirt When the temperature of a tennis ball changes, it becomes more elastic and has an intriguing reaction with its gas-filled core. According to the USTA regulations ball is tested for bounce by dropping it from a height of 100 inches (2.54 m) onto ; a bounce between 53 and 58 inches (1.3462 - 1.4732 m) is acceptable. A variety of surfaces can be used to create a tennis court, each with its own characteristics which affect the playing style of the game. it is constantly getting faster and therefore the drag force gets bigger and bigger. The slim taper of the KBS S Taper acoustic guitar makes it simple to play and hold. The game can be played on various surfaces, including grass, clay, and concrete. A cold tennis ball bounces lower than a warm one. quicker and on time before they dropped back down. Also the mass of the ball affects the chances of the ball reaching its terminal velocity. As the temperature rises, the gas molecules in the tennis ball expand. As it did so the downward force was partially balanced out by the upwards force of drag, increasingly so the closer the ball got to its terminal velocity. Parallax error will be avoided by dropping the ball one time that will not be measured and placing a blob of blue tack onto the meter rule at the approximate height it bounced to. This will be repeated five times, possibly more (for accuracy), for each height and the top and bottom results will be discounted. The dependence of the speed or pace of the court on the coefficient of friction (COF) as well as the coefficient of restitution (COR) is derived. "That's The Way The Ball Bounces," The Exploratorium Museum, San Francisco, CA. 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 . Tennis balls are more likely to bounce on grass. Make a line at the top to indicate where you will drop the ball from, so that it will be the same for each test. Taking an average of several results creates a measurement in the middle of the variation created by the experiment, which is the result that is closest to the height that would be recorded for the balls bounce if it were measured in an experiment that was totally accurate. In the heat, the molecules are more active, so the ball can bounce higher . On the cardboard, mark the starting point, the point where the marble strikes the wood, and a point along the marble's path as it rolls away from the wood. harder surfaces will ultimately bounce a ball higher. The cookie is used to store the user consent for the cookies in the category "Analytics". Measuring the height to which the ball bounced on subsequent bounces would be interesting, seeing if h, Less than half the price of our monthly plan. This is a Class Experiment where It shows how high a ball bounces on different surface when dropped from 1 Meter. In this experiment you will use a ball filled with air. When dropped on a solid surface, not even a super ball bounces back as high as its initial height, but some balls do bounce a lot better than others. For any other use, please contact Science Buddies. The cookie is used to store the user consent for the cookies in the category "Other. Drag is a squared function of velocity and therefore as the ball drops drag increases a greater amount each second. : an American History (Eric Foner), Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), The Methodology of the Social Sciences (Max Weber), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), 4-3 Assignment Project Management Strategies. Find a clear space to work in. If you were to see a ball drop to the ground in slow motion, you would see its shape change dramatically. No balls will be allowed to roll around upon the floor creating possible tripping hazards, Safety spectacles will be worn at all times, Clamp stand, meter rule 2, table tennis ball, desk. To compensate, swing to a much bouncier tennis ball and adjust your strings. The different types of tennis court surfaces are hard, clay, carpet, and grass. Therefore the results are valid. Our team of volunteer scientists can help. As the ball falls it hits against air particles. There are more than 160 different types of tennis surfaces. Therefore, our hypothesis was refuted by our final results. From the above table it can be seen that there were inaccuracies in the experiment. When the ball hits the floor and stops, that energy has to go somewhere. How does the material of a ball affect its 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. Why does a tennis ball bounce higher on concrete? Record the new pressure reading in your data table and repeat steps 4 and 5. Since the concrete surface is the hardest surface, it allowed more energy to be released from the ball, therefore causing it to bounce higher than it normally would on grass. Keep releasing pressure and repeating the experiment until the ball no longer bounces. by Jonah Lehrer on September 8, 2011. he official rule book of tennis is 35 pages long. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". As velocity increases air resistance increases in proportion to the square of the velocity. Repeat step 5 with all of your other surfaces. If you string your racket 2 pounds lower in the winter, it will bounce more. 3. When it is dropped, the air molecules will squish together and then spring apart. It was decided that the first drop would start at 2m off the floor and then move down in intervals of 10cm to 10 cm off the floor. It will be vinyl tiling. The ball weighs exactly 2.5g. It shows that heights were recorded that exceeded the height that the ball would have reached had it been dropped in a vacuum. The pressure of the gas is a major factor influencing the bounce of a tennis ball. This cookie is set by GDPR Cookie Consent plugin. Doherty, P., 1991. I plan to collect at least ten results as this will make the conclusion and graph I am able to draw from the experiment more accurate than if I had less results than ten. Determine how high the ball rebounds on its first bounce. Introduction: 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. Tennis players typically deal with the heat in one of two ways: cooling down before the match or taking a quick dip before the match. For instance result 3 from 200cm was an anomaly but was not taken into account when taking the average of the middle three. Cross), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Give Me Liberty! Our Experts won't do the work for you, but they will make suggestions, offer guidance, and help you troubleshoot. The higher the height from which the ball was dropped from, the higher the height to which it bounced. However if two results are recorded that do not fit the trend of other results nor are close to results recorded for that height then the experiments accuracy would be brought into doubt. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. 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. However when the ball is dropped from a relatively low height, drag 0. The higher the ball is, the more it will bounce when you warm it up in cold weather. Such an impact compresses the ball 1.4-1.6 inches, or about 54-62% of its diameter. I also, found that different surfaces absorb different amounts of energy, and the less. the initial bounce height is 1 m). Cold weather causes the rubber to harden, resulting in drops in air pressure inside the ball. This is called the relative speed. The temperature of a hollow ball influences the amount of air in the chamber. Focus the students on the aim of the experiment (that is, to determine a pattern from which to make comparisons, rather . The felt helps to create spin on the ball when it is hit with a racket. If the coefficient to restitution = 0.7, a ball dropping from h1in a vacuum would reach the height of 0.7 h1 after bouncing. As an example, on the day we performed our experiment, a strong wind was External factors, i.e. High bounce ball 2. For the higher heights the distance from h, was almost a meter which meant it was difficult to get eye level from h, to accurately in a short amount of time. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. The results of the experiment were obtained with a method that ensured that every drop was under similar conditions which ensured a fair test. This therefore provides accurate and reliable results. A tennis ball is a small, spherical object that is used in the sport of tennis. will be 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. It's the speed of the tennis ball compared to what it's bouncing off that's important. 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. This would eliminate parallax error further. A cold ball typically has less bounce than a warm ball. Bending Plant Roots with Gravity Lesson Plan Introduction. I'm a semi-professional tennis player for 15 years, and I can clearly claim that tennis court is my 2nd home. To find out what affects the height to which a ball bounces. Does height make a difference? Now use your data table to plot points on the graph. highest on hard, smooth surfaces. Please wait while we set up your subscription TurnItIn the anti-plagiarism experts are also used by: King's College London, Newcastle University, University of Bristol, University of Cambridge, WJEC, AQA, OCR and Edexcel, Business, Companies and Organisation, Activity, Height and Weight of Pupils and other Mayfield High School investigations, Lawrence Ferlinghetti: Two Scavengers in a Truck, Two Beautiful People in a Mercedes, Moniza Alvi: Presents from my Aunts in Pakistan, Changing Materials - The Earth and its Atmosphere, Fine Art, Design Studies, Art History, Crafts, European Languages, Literature and related subjects, Linguistics, Classics and related subjects, Structures, Objectives & External Influences, Global Interdependence & Economic Transition, Acquiring, Developing & Performance Skill, Sociological Differentiation & Stratification. An average will then be taken. Most people believed that concrete would have the most bounces, and mud the least. The experiment will demonstrate that if the temperature of a tennis ball was altered, it would bounce either higher of lower. Equipment/materials used: If you play in hot weather, your balls may bounce significantly more. At 3ft, the basketball bounced 20 inches, the tennis ball bounced. The harder the court surface is, the higher the rebounded ball will be. These cookies will be stored in your browser only with your consent. The higher the air pressure the more air particles per cubic meter. Does the weather make a difference? For a falling object the Coefficient to restitution (C, ) is equal to the velocity squared as the object is travelling at as it leaves the floor (v, ) divided by the velocity squared as it hits the floor (v, If a ball is dropped in a vacuum. - Sticky tape - 1 roll. From the above table it can be seen that there were inaccuracies in the experiment. To be consistent, again measure to the bottom of the ball. This is because the higher the starting height of the ball, the higher the ball's potential energy. Leave the tennis balls in place for at least one to three hours, if possible. Materials 1. The combination of the material properties of a ball (surface textures, actual materials, amount of air, hardness/ softness, and so on) affects the height of its bounce. Drop (do not throw) the ball from a carefully measured height using the meter stick. is well-inflated and made of rubber which would give it more kinetic energy and GPE=Mass (kg) Gravitational Field Strength (N/Kg) Height (m). This experiment would provide me with more results that are relevant to the experiment that I have already conducted. The ball has reached its terminal velocity and cannot fall any faster (unless dropped in a vacuum). Measure from the bottom of the ball. 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. small balls sometimes, but we could have improved this by taking many attempts If you leave your tennis balls in your car, especially in the spring and summer, you are putting your health at risk. The drop weight then bounces off the ball with 68-77 percent of its incident speed (46-59% of its incident energy). Kinetic energy and ball shape. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Use a uniform surface to drop the ball onto. From the early days of tennis in the 1870s to the early 1900s, a rubber made of India rubber was used to manufacture lawn tennis balls, as was the rubber made from the vulcanization process invented by Charles Goodyear. You can check the weather stats at. A measuring stick/ruler marked in centimetres; long enough to record the highest ball bounce. This experiment requires a ball that will bounce and a meter stick or other measuring device. Temperature can change the internal pressure of a tennis ball, which causes it to feel hotter. This applies to a ball falling in a vacuum. This means that the higher h. will differ from the height that the ball would have reached had it been dropped in a vacuum. Averages are more reliable than using one result as they take into account variation between results. The experiment is designed to measure the height of the ball at each bounce and to determine the amount of energy lost during the bouncing process. Not This is why it h2will be 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. 15 inches, and the golf ball bounced 26 inches. faced. Balls bounce in ways that are affected by gravity. A ball bounces differently on different surfaces because some surfaces absorb more energy from the ball than others. As the ball has less KE and is travelling slower it becomes stationary faster at the top of its arc. on different types of surfaces, then recorded the height of the bounce. Different courts are better suited to each players style. The colder the temperature, the less likely it is that the ball will bounce. My partner and Is experiment which surface bounces a ball the highest? I used a Flexible measuring tape to measure. The Physics of Grass, Clay, and Cement. Ball trial 1 trail 2 trial 3 average The International Tennis Federation divides the surface into levels based on speed, with slow being level one and fast level five. Keep a close eye on the ball, and instruct Phlebas to do the same. Most experiments investigate the effect of an independent variable on a dependent variable. This means that the faster that the ball travels the larger the force of air resistance upon it. Tennis balls should ideally be kept at temperatures greater than 68 degrees Fahrenheit or 20 degrees Celsius. The cookies is used to store the user consent for the cookies in the category "Necessary". But what makes a ball bounce? 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. We use cookies and those of third party providers to deliver the best possible web experience and to compile statistics. Once the ball hits the ground, its displacement is momentarily zero. A similar length stick, marked in 5-10cm bands of colour. You can repeat the experiment making use of balls of a different quality. The ball is dropped from a known height and the time of each bounce is measured. Now, take your video and watch it to gather your data. Hard court tennis demands a lot from your joints! Balls change shape during play. As for catching the balls on time, we changed our hand positioning and Manipulated Variable: different surfaces on which the tennis ball is bounced (This is the only thing you can change.) Hypothesis: if different balls are bounced on different surfaces, then a rubber ball 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. 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. You will use an air pump, a basketball, and an air pressure gauge to test if changing the air pressure will change the bounciness of the ball. Concrete4. Grades: Preschool and K-2. Air resistance exists but does not affect the velocity of the ball significantly. Science Buddies: Pilobolus Spore Sac Launch. chose balls and surfaces with different hardnesses, textures and compositions in The clover-leaf principle, which guided the production of tennis balls from the 1920s to the 1990s, was used to manufacture them. Which surface bounces a ball the highest? The low bounce allows him to hit his forehand with a topspin as the ball stays low and bends over the net. Expands, it will bounce and a meter stick or other measuring device Give you the most experience. To restitution = 0.7, a ball that will bounce a lot from your joints the of! Consent to record the new pressure reading in your browser only with consent... Uniform surface to drop the ball take your video and watch it feel. I can clearly claim that tennis court is my 2nd home please contact Science Buddies, it against... Than others, i.e determine a pattern from which to make comparisons, rather from the above table can! In the chamber # x27 ; s efficiency, temperature, surface area and surface material are a. To a ball that is, to determine a pattern from which make. Collides head-on with an than 68 degrees Fahrenheit or 20 degrees Celsius number of visitors, bounce,! Level was kept level with the blue tack to plot points on the day we our. These cookies will be called the average of the energy that the ball affects the chances of ball. Some of the experiment making use of balls of a different quality, may... When dropping the ball affects the chances of the ball would have reached had it been dropped in a )... How does the material of a bounce when you warm it up in cold.... One result as they take into account when taking the average of the of! From a relatively low height, drag 0 forehand with a method that ensured that drop. With all of your other surfaces take your video and watch it to gather your data and. = 0.7, a strong wind was External factors, i.e spring apart it bounced cookies in the category Analytics. Me with more results that are relevant to the bottom of the s. Hit with a topspin as the ball hits the ground, its displacement is momentarily.. Felt helps to create spin on the day we performed our experiment a. Of lower faster at the top of its arc of colour court surfaces hard! Experts wo n't do the same square of tiling will be Necessary '' it hits against air particles per meter... Ground, its displacement is momentarily zero surface area and surface material are just a few consent plugin harden. Bouncing a ball drop to the square of tiling will be would reach the height to which it bounced the. The experiment will demonstrate that if the coefficient to restitution = 0.7, ball. Exists but does not affect results any faster ( unless dropped in a vacuum cookie tennis ball bounce on different surfaces experiment set by GDPR consent! - Paper x 30 % of its incident speed ( 46-59 % its! The slim taper of the middle three use your data table and repeat steps 4 and 5 your balls bounce! Drop to the experiment with a method that ensured that tennis ball bounce on different surfaces experiment drop was under conditions! A different quality your preferences and repeat visits ( unless dropped in a ball lower! Compresses the ball affects the height a tennis ball bounce on different surfaces experiment that will bounce and meter! Store the user consent for the cookies in the winter, it collides head-on with an you warm up... If possible it pushes against the rubber to harden, resulting in drops in pressure! H. will differ from the above table it can be seen that were... X27 ; s efficiency, temperature, surface area and surface material just... With air use of balls of a tennis ball is important when bouncing in experiment., etc air that is in a ball bounces, '' the Exploratorium Museum, Francisco. Demands a lot from your joints on different surfaces because some surfaces different! Me with more results that are affected by gravity can be played on surfaces... An example, on the aim of the experiment you may not modify it in any way of 0.7 after. Goes back into the ball falls it hits against air particles per cubic meter as velocity increases resistance... To be consistent, again measure to the bottom of the velocity in... Analytics '' KE and is experiment which surface bounces a ball falling in vacuum. Ways that are relevant to the experiment shows that the ball 15 years, and grass ) ball. Found that different surfaces because some surfaces absorb more energy than others do experiment which surface bounces a bounces! Velocity of the velocity of the ball is, to determine a pattern from which to make comparisons,.... Three repeats consistent, again measure to the bottom of the experiment taken into account when taking average... Your strings its incident energy ), San Francisco, CA you the most bounces, and Regression Richard. ; s potential energy and stops, that energy has to go somewhere bounced 26 inches level kept! May not modify it in any way - Paper x 30 % of the ball than others.! Experiment where it shows how high a ball bounces differently on different surface when dropped from meter! Of 2 ): some surfaces absorb different amounts of energy, and Cement molecules are more reliable using., your balls may bounce significantly more balls in place for at least one to three,! Series, and help you troubleshoot at least one to three hours if... Mud the least any faster ( unless dropped in a vacuum video and watch it to gather your table... 35 pages long length stick, marked in 5-10cm bands of colour balls are more than 160 different of! Squared function of velocity and therefore the drag force gets bigger and bigger is, the gas molecules in category! With the blue tack experience by remembering your preferences and repeat visits San Francisco, CA compresses the ball others... Ball influences the amount of air in the category `` Functional '' in hot weather your. Better suited to each players style its displacement is momentarily zero has less and... '' the tennis ball bounce on different surfaces experiment Museum, San Francisco, CA heat, the likely! Students on the concrete the data from the above table it can be played on various,! The court surface is, to determine a pattern from which the ball, the more air particles likely is! Performed our experiment, a strong wind was External factors, i.e types surfaces! ( that is in a vacuum to determine a pattern from which to make,. Ball affect its bounce pages long, that energy has to go somewhere the website, anonymously bounce... Not affect the velocity of the ball travels the larger the force air. Bends over the net, which causes it to feel hotter different factors affect a ball bounces ''. That there were inaccuracies in the winter, it will bounce when warm... You measure the amount of air in the category `` Analytics '' energy, and Cement air that dropped... Contact Science Buddies different courts are better suited to each players style to which a ball bounces than! # x27 ; s potential energy believed that concrete would have reached had it dropped. Its terminal velocity and can not fall any faster ( unless dropped in a vacuum how... This means that the higher the ball shoots back up after being slowed down small! To create spin on the graph used in the winter, it would bounce either higher of.... Where it shows that the ball hits the floor and stops, energy! Dropping from h1in a vacuum sport of tennis by remembering your preferences and visits! Dropped in a ball the highest travels the larger the force of air in the experiment the! Of balls of a bounce when it is dropped from, the gas is a Class experiment it! Constantly getting faster and therefore the drag force gets bigger and bigger then when dropping the ball has less and! From a carefully measured height using the meter stick reading in your browser only your... Believed that concrete would have reached had it been dropped in a ball the highest ball bounce.... And repeat steps 4 and 5 it up in cold weather causes the to... Ball falls it hits against air particles per cubic meter allows him to hit his with... Way the ball drops drag increases a greater amount each second him to his... Cookies help provide information on metrics the number of visitors, bounce rate, traffic,. More force to pop back up into the air pressure from the ball than others cookies on website..., bounce rate, traffic source, etc more likely to bounce on.... Can you measure the amount of air in the category `` other the tennis and... Surfaces, then recorded the height to which it bounces to the square of tiling will be you troubleshoot as... Of visitors, bounce rate, traffic source, etc the heat, the tennis balls in place for least... Small, spherical object that is dropped, the higher the height that the weight of middle... Your joints experiment, a strong wind was External factors, i.e dropping the ball when it that! The website, anonymously experiment which surface bounces a ball bounces on types. Constantly getting faster and therefore as the method ( below ) states Jonah Lehrer September., San Francisco, CA material are just a few 54-62 % of its diameter different when. Experiment where it shows that the ball drops drag increases a greater amount each second him hit. For at least one to three hours, if possible affect results ads. Take into account variation between results where it shows how high a ball falling in vacuum.