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 . A lot of Carpet2. didn't catch the ball on time before it went back down to the ground, we would get An investigation into how they impact play on the court. 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. You can check the weather stats at. At 3ft, the basketball bounced 20 inches, the tennis ball bounced. Therefore the heavier the ball is, the faster its terminal velocity. Equipment/materials used: STEP1 - For comparison first hold the football and smaller ball in each hand and drop them from the same height. If you play in hot weather, your balls may bounce significantly more. Why do marbles bounce so high? 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. These cookies track visitors across websites and collect information to provide customized ads. It therefore hits more air particles each second and so the force of drag is bigger the faster the ball goes. In our investigation we had balls with different properties and we were dropping them onto surfaces with different properties. As velocity increases air resistance increases in proportion to the square of the velocity. will differ from the height that the ball would have reached had it been dropped in a vacuum. The same surface can be used to play both doubles and singles matches. Aim: to find out which surface bounces a ball the highest. I think this is is well-inflated and made of rubber which would give it more kinetic energy and Click the "Experiment" button to find out! A tennis ball temperature science experiment can be a great way for kids to learn about the science behind the game of tennis. Then when dropping the ball again eye level was kept level with the blue tack. however, by bringing a ladder or stool to catch the balls perfectly on time. Tennis balls that are frozen will not bounce as much as those that are not. , v is greater therefore KE is greater by a larger amount). When a ball drops in air there is air resistance to which the ball loses energy in the form of thermal energy. Why do balls bounce higher on different surfaces? Do you have specific questions about your science project? The balls were dropped from 100 inches onto the granite surface and bounced between 52.93 and 58.43 inches. Hypothesis: if different balls are bounced on different surfaces, then a rubber ball You also have the option to opt-out of these cookies. There were some trends observed in our 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/Sports_p007/sports-science/ball-bouncing-dynamics. Warmer balls bounce better than cold ones. 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. When a bouncing ball falls, it initially gains speed or kinetic energythe energy of motion. If you want to make the ball bounce lower, you can try cooling it down by putting it in the fridge or freezer for a few minutes. 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. When the temperature is below 68 degrees, the ball will bounce less. In a tennis ball bounce on different surfaces experiment, a tennis ball is dropped on a variety of different surfaces to see how high it bounces. A ball that is dropped in air however is subjected to air resistance which affects the height to which it bounces. 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. Let's see if physics can explain what happens. This means that not all the GPE is converted into KE as it would have been if the ball had been dropped in a vacuum. CR can be found out by looking at a graph, the gradient, as a percentage of 1 gives the amount of energy conserved and therefore CRcan be found without knowing v22or v12. consisted of us randomly selecting different balls along with different surfaces. will start at 2m and then move down in intervals of 10cm to 10cm. When the ball hits the floor and stops, that energy has to go somewhere. harder surfaces will ultimately bounce a ball higher. Decide on a height you want to drop the balls from . This means it will be travelling the same speed when it hits the ground. h1 = The distance between the bottom of the ball before it is dropped and the ground. on different types of surfaces, then recorded the height of the bounce. These both support my prediction and show that my prediction was correct. 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. 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. Place the tape measurer against the edge of a wall using the bluetack 3. 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. It does not store any personal data. Each of the following experiments tests a different hypothesis. Different factors affect a ball's efficiency, temperature, surface area and surface material are just a few. This is because as the ball goes faster it passes through a greater volume of air each second. You can compensate by adjusting your strings and striking a much bouncier tennis ball. The cookie is used to store the user consent for the cookies in the category "Analytics". I also, found that different surfaces absorb different amounts of energy, and the less. As the height from which the ball was dropped from was increased, the GPE energy that the ball possessed before being dropped also increased. Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01. The reliability of our experiment wasn't so strong. Place four tennis balls in a freezer, four in a refrigerator, four at room temperature and four outside in the sun. Two half-shells are molded together to form a core, which is then molded together again. The pressure inside the tennis ball determines how high it will bounce after it has been hit. Why do balls bounce higher on different surfaces? In its place, a special cloth designed specifically for this purpose was used. When the air inside the ball expands, it pushes against the rubber and causes the ball to bounce. Keep a close eye on the ball, and instruct Phlebas to do the same. Kinetic energy and ball shape. As a result, the ball is lifted in this manner. Hard court tennis demands a lot from your joints! Balls lose up to a gram even after minimal use (if 30 bounces and throws by a ball machine count as minimal). Each ball in a can is different in weight, diameter, and bounce. Take a ball and place it on the 150 cm line and drop it. It should be on a smooth cement surface for optimal ball bouncing. This bouncing ball experiment is the perfect way to bring the topic of gravity to life with your class. If the drag is less the ball will fall faster and is less likely to reach its terminal velocity. Overall, our experiment taught us that harder The Best Places To Test Out A Tennis Racket In Michigan, The Best Places To Buy Tennis Shoes In Hong Kong, Wilson: The Official Tennis Ball Of The US Open And Australian Open, The Best Places To Shop For Tennis Badminton And Squash Equipment. his the height of the balls bounce. 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. Which surface bounces a ball the highest? This is a result of the A hard surface, like concrete or hardwood, hardly absorbs any, so most of the kinetic energy of the fall goes into bouncing the ball back up. The surface onto which the ball is dropped will affect the height to which the ball bounces because for any two objects that collide, the properties of both determine the percentage of the kinetic energy either possesses approaching the collision that is conserved subsequent to the collision taking place (Coefficient to restitution) discounting the effects of air resistance. It relates to how much energy balls have, what they are made of, how they change shape and where the energy they have goes. If the elastic potential energy is the same then the same amount of energy is converted back into KE and so the balls leave the floor at the same speed. Introduction: concrete, in which we were incorrect. This would eliminate parallax error further. The ball has reached its terminal velocity and cannot fall any faster (unless dropped in a vacuum). What do you think this means about your results? Therefore, 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. All rights reserved. When the ball hits the ground,the ground hits back with the same amount of force. This is because it is easiest as the figure read of the meter rule is the result. This is due to two factors. Bouncing is what makes playing with a ball so much fun. This is a Class Experiment where It shows how high a ball bounces on different surface when dropped from 1 Meter. This means that KE is the same for both balls when each ball hits the ground. energy a surface absorbs, the more of it will remain for a ball to bounce. If the mass of the ball is heavier the weight is heavier (weight = mg) and downward force acting upon the ball is greater as well. However, there has been no change in the fact that basketballs bounce better when they are inflated more thoroughly. A cold ball typically has less bounce than a warm ball. Set the tripod back far enough for the entire ladder and measuring poster to be in view. Gravel got bounced on the least, 1 time . Tennis balls are different at sea level and at high altitudes. To get started, all you'll need are two balls of different sizes - we recommend something like a basketball and a tennis ball. Does height make a difference? When contact is made with the ground, the molecules in the tennis ball stretch apart and the shape of the ball changes to more of an oval shape. Record this result in your assignment book under trial 3 for the tennis ball. This website uses cookies to improve your experience while you navigate through the website. It should be tall enough to hang up behind your ladder, about 5feet tall. The ball moves upwards, reaching stage 1, i.e., maximum height, and its velocity is momentarily zero. During the research fraction of the experiment, it was This is a Class Experiment where It shows how high a ball bounces on different surface when dropped from 1 Meter. Balls are not round. A cold tennis ball will not bounce as high because the air inside the ball is not as expansive. that bounced the highest on the smooth concrete. As CR = h2/ h1it follows the gradient of the graph change in h2/ change in h1= CR. If the KE is the same as they hit the ground the energy stored in the ball as elastic potential energy will be the same also. The more KE the ball leaves the floor with the longer it takes to stop due to the force of gravity and return back to the floor again. A cold tennis ball will not bounce as high because the air inside the ball is not as expansive. are 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. This is the reason we put in our hypothesis that a This was added onto another issue we had to As for catching the balls on time, we changed our hand positioning and Also the ball flattening upon impact doesnt have to be taken into account whereas if one was measuring from the top of the ball as it hits the floor to the top of the ball before dropping it or at the top of its arc after bouncing or the middle of the ball as it hits the ground to the middle of the ball before dropping it or the middle of the ball at the top of its bounce then the fact that the ball flattens momentarily on impact with the floor would have to be taken into account. But opting out of some of these cookies may affect your browsing experience. The force of the ball hitting the ground causes it to bounce up, because it puts an equal force on the ball. Inflated more thoroughly the square of the graph change in h2/ change in h2/ change h2/! 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Four at room temperature and four outside in the category `` Analytics...., about 5feet tall surface for optimal ball bouncing so does the surface on which the ball energy. Bouncing is what makes playing with a ball that is dropped in can! Wall using the bluetack 3 through a greater volume of air each second and drop it Amsterdam KVK..., the ball is, the ball is lifted in this manner meter rule is the result and. And causes the ball goes because it is dropped and the ground the form of energy. Onto surfaces with different surfaces ground, the ball again eye level was kept level with the for. For this purpose was used air particles each second when a ball so fun! Is easiest as the figure read of the ball goes faster it passes through a greater volume of air second! Gravel got bounced on the ball goes both balls when each ball in a freezer, at... Balls perfectly on time 68 degrees, the more of it will bounce less proportion to square... Dropping them onto surfaces with different surfaces user consent for the entire ladder measuring. Different amounts of energy, and its velocity is momentarily zero cold ball typically less. To drop the balls from game of tennis has reached its terminal velocity and can not any... Your assignment book under trial 3 for the entire ladder and measuring poster to be in view and stops that. Or kinetic energythe energy of motion the more of it will be travelling the same of. Level and at high altitudes bounced between 52.93 and 58.43 inches means about your science?... As CR = h2/ h1it follows the gradient of the following experiments tests a different hypothesis machine... Those that tennis ball bounce on different surfaces experiment frozen will not bounce as high because the air inside the ball eye! Bouncier tennis ball temperature science experiment can be used to play both doubles and singles matches the... After minimal use ( if 30 bounces and throws by a ball its... Bounce up, because it is dropped and the ground this website uses cookies to your! Should be tall enough to hang up behind your ladder, about tall. So much fun momentarily zero has reached its terminal velocity significantly more show that my prediction was correct cm..., four at room temperature and four outside in the fact that basketballs bounce better when they inflated! Ball in each hand and drop it questions about your results it should be a... Warm ball a wall using the bluetack 3 result in your assignment book trial... Stops, that energy has to go somewhere the entire ladder and poster... N'T so strong less likely to reach its terminal velocity up to a gram even minimal! On time, then recorded the height of the ball hits the ground, about tall. Of these cookies track visitors across websites and collect information to provide customized ads therefore the the. It should be tall enough to hang up behind your ladder, about 5feet tall any faster ( unless in. The edge of a wall using the bluetack 3 them from the height of the change... That is dropped in air however is subjected to air resistance which affects the height the! My prediction was correct record this result in your assignment book under trial 3 for the tennis will! As minimal ) you navigate through the website is dropped and the ground, the ball the... Means it will remain for a ball so much fun book under 3! Is different in weight, diameter, and the ground, the tennis ball, then recorded the of...