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Why does a ball bounce?
A ball, falling through space, loses potential energy and gains kinetic energy. This is a way to say (in Physics equations) that it goes faster the longer it falls. When the ball strikes a hard surface, the ball is deformed and changes all the kinetic energy to elastic energy. This energy then changes back to kinetic energy as the ball recovers its shape. This is an example of an elastic collision. There is some loss due to air resistance and thermal loss in the conversion from kinetic to elastic and back again, but the ball acts as a good demonstration that energy is conserved in physical processes.
How big is the largest bouncy ball?
yes, the gravity from the increased mass would have an effect to how fast the ball would drop, thus increasing in speed, however this effect can be countered by the energy used to acelerate the ball up against gravity Your Welcome. From: Drazonix
What types of balls bounce?
Studying the mechanics of bouncing balls is a good way to learn simple physics. Bouncing ball We can all look back at our childhood memories and find a ball that bounces in some shape or form. Whether we played soccer with friends or threw a tennis ball against the wall. We have all played with these bouncy toys. Although balls are fairly inconspicuous objects for most people, they actually serve as an interesting springboard for learning about many interesting physical phenomena. Acceleration, speed, energy; All of this can be learned by studying the physics behind bouncing balls. There are essentially seven phases in each ball bounce, into which the action can be divided during the movement, before, during and after the impact investigation. We will first look at the seven simplified phases of bouncing the ball, ignoring any external forces other than gravity. We will break down each step in detail with equations and yes (for the physicists among you), we have simplified a lot of things. Please find it for us. A little sneak peek: If you need a deeper understanding, the following video will be the one for you. Level 1: Fall The first stage is the start of each ball, in which the potential energy of the height of the ball is converted into kinetic energy by the acceleration of gravity. In a simplified case, the ball falls according to the force of gravity, which is always directed directly downward. On earth, this acceleration of gravity is 9.8 m / s2 (g = 9.8 m / s2). This essentially means that the speed of the ball accelerates at 9.8 m / s per second of fall. Step 2: First contact The first phase of contact is just that; when the ball is just in contact with the ground surface it will continue to fall under the influence of gravitational acceleration, but now a normal force from the ground surface, counteracting the force of gravity, will act on the ball. Stage 3: Deceleration / negative acceleration After the first impact, the ball decelerates or accelerates rapidly in the negative direction. The velocity of the ball continues to point downward when it is deformed, but the acceleration of the ball begins to point upward again when the reaction forces overcome gravity. Step 4: Maximum deformation After the deceleration phase, the ball has reached the maximum deformation. At this point the velocity is zero and the acceleration vector points upward. This is the lowest point of the ball and its maximum deformed point. If we assume that the ball is fully elastic and ignore other energy losses such as sound and heat, the ball will bounce back to its original drop height after this point. Compression and decompression of a bouncing ball Stage 5: Initial bounce In this phase, the ball begins its journey back to the starting point. Its velocity and acceleration vectors point in the same direction, that is, up. The ball is less deformed than in the maximum deformation stage and now, due to its elasticity, it presses against the surface with a force greater than its own weight. This makes the ball bounce upward. Stage 6: Zero Contact Bounce With zero contact bounce, the ball is no longer deformed and barely touches the surface, essentially only at one point. The velocity moves the ball upward, but at this point the acceleration changes to counteract the velocity vector. This is because the elasticity of the ball pressing on the surface no longer exerts a force that accelerates it upwards. The acceleration due to gravity pulling down is now the only force acting on the ball in a perfect system. Stage 7: Full bounce At the moment of full bounce, the ball has left the surface and its velocity vector is still pointing upward, although it is constantly decreasing due to the acceleration or deceleration of gravity. After this step, the ball reaches its peak in a new step where its velocity vector is zero and the only force acting on it is gravity. Added variables and special cases in bouncing ball physics The ball bouncing on top case has been simplified to eliminate, among other things, all other forces such as air resistance, imperfect elasticity, spin, friction, and the force of a first throw. All of this means that the physics of the bouncing ball gets complicated from here. If the balls have some kind of spin, as is often the case when they are thrown, and if the surface they hit is not smooth, the spin of the ball is reversed from before to after impact. This is due to the force of friction.
How does friction effect football?
The effects of friction can be found in several areas of football (I assume you're speaking of the American brand of Football, not the European/Southern Hemisphere brand). 1) When the quarterback throws a pass, there's friction between his fingertips and the ball, helping to impart spin to the football in the air. 2) Runners need a good grip between their shoes and the surface of the playing field, and other than gravity, friction provides the good footing they need. 3) There is a small amount of friction between opposing players during blocking and such. Attempts to diminish the friction by liberally applying, say, vaseline, to your jersey would be viewed with disfavor by the local officials. .
What does a heavy ball do?
It is good for catching heavy Pokemon such as lugia, steelix and such
What is a good alliteration sentence that starts with bounce and end with Brooklyn?
Bounce a big ball by Brooklyn.
What games are similar to bounce tales?
Red ball is very similar to bounce tales yet not as good.
Do tennis ball bounce well on cardboard?
It depends where you lay the cardboard. If you lay it on carpet it won't bounce well. If you lay it on concrete it will bounce good.
Does mud on a tennis ball affect the height of its bounce?
not as far as you know is not a good answer because it does not explain. the mud will make the tennis ball heavier and denser if it has water in it the ball heavy wont go far for its bounce.
What would be a good conclution for a project what ball will bounce higher?
i learned that golf balls have a little bit of weight, less than a bouncy ball witch makes them bounce higher.
Is shivam good at football?
yes shiva is very good in foot ball
What is a good free throw chant if you make it?
bounce the ball three times behind ur head then shoot it!
Is America good at football?
They are ok but in amerca football isn't a main sport they concentrate more on americain football (rugby) and to them foot ball is socer so they are good but not too good
How can you glorify God by being a football player?
suck my balls .com play good football pass the ball look up first of all i got good by hitting the ball against the wall then try playing football in the street
What are the advantages to drop kicking in the NFL?
None that I can think of. Dropkicks used to be common when the football was rounder at the ends, providing for a reliable bounce when the ball hit the ground. Now that the modern ball is pointed at each end, it's much more difficult to make a good dropkick, which is why you hardly ever see it anymore.
Is Lewis mallett any good at football?
yes but he pops the ball when he headers the it
Do volleyballs pop?
a tennis ball's bounce depends on what type it is and how much it has been used, A good tennis ball is fuzzy and when you squeeze it in your hand it doesn't let you bend it in that much. Basically when you are looking for a good bouncy ball get one that is fuzzy and is bright, no dirt and what not.
