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Uses of physics in everyday life
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In order to live our everyday lives, we must use any form of physics to get through each day. Physics is not just a school subject matter. It is a helpful and useful subject that includes everything - to us humans and the world’s everyday learning experience. Without physics, we would be unable to know from weird facts to questionable theories. These facts and theories can help us work our way through the world. For example, do heavier objects fall much more slowly than lighter objects? According to physics, no! Obviously, if the object is greater, it will contain a greater force of gravity than the lighter object. In other words, the heavier object will not fall more slowly than the lighter object. In fact, it will only fall down faster, …show more content…
Therefore, the tennis ball loses energy to the forces when they bounce to the court, even though that is due to friction. That is why the tennis ball deforms. Elastic collision can happen when it is with a super-bouncy ball. Tennis balls are definitely soft balls; they are as soft to where you can squish it with your hand. However, pay attention, if a round ball of clay or an egg drops to the floor, then the ball of clay or egg will not bounce up because its loss of kinetic energy. That is not elastic collision; this is called inelastic collision. Speaking of friction, the tennis ball needs something to create the spin between it and the racquet; that ally is friction. Friction is when a force on an object is proportional to the force that is normal. This includes that friction has a proportional effect on the ball’s motion when it interacts with the court. That only happens when the tennis ball becomes in contact with the racquet’s strings. The racquet’s strings have friction on a tennis ball, that is how the tennis ball has been allowed to have a spin into it during a hit. Friction is very important to the spin. A hit with a spin being imparted by the tennis ball are the best hits for …show more content…
According to a 2011 Issue on “The New Physics of Tennis,” from The Atlantic, they state that they have been trying to figure out how to make tennis more advanced. They are trying to make this happen by changing one thing. That one thing is the strings from the tennis racquet. We used to argue that you will get a more of a better spin of the ball if your contact between the racquet and the ball has a firm grip. However, in a new argument, they stated that slippery and stiff strings, which is called Copoly strings, are more generated to add more top spin onto the ball than other strings. It adds more spin in the ball not because it has more friction, but only because it has less of
Tennis serve Introduction to tennis Tennis is a sport that can be played individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to play the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball will not gain a point, while the opposite player will.
The physical demands of tournament tennis players can be and usually are very grueling. The body is using both anaerobic and aerobic metabolism along with anaerobic and aerobic muscle fiber types. Tennis is a high intensity sport requiring hundreds of short bursts of activity. Most points only last around 10 seconds(anaerobic) but there is only 25 seconds of rest in between points and 90 seconds of rest in between games which requires the player to have endurance(aerobic). Tennis matches can be long and drawn out, lasting hours or they can be fast, intense and only last an hour. This means having adequate nutrition along with an efficient metabolism is key to being able to compete at the highest level.
Racquetball is a competitive game in which a strung racquet is used to serve and return the ball.
Our machine showed physics in many ways. It used Newtons laws, collisions, and more aspects of physics. Our project showed ten different aspects in detail. This is our machine.
It is said that in 1949, Sobek and a partner began playing with a paddle and combined the rules of handball and squash to play what they called “paddle racquets.” He then decided to change from a paddle to a racquet itself using a tennis racquet as a model. He made 25 to sell to his friends to start the sport. There was one problem though; there were faults in the ball. Sobek then found a Spalding ball made for children that work well. He bought a lot of them and sold him to his friends in 1950 to keep his sport from dwindling out. Sobek eventually started his own company to make his own ball to his exact specifications for the game.
When an object travels through fluid/air there are two types of flow characteristics that happen, laminar and turbulent. Laminar flow is a smooth steady flow over a smooth surface and it has little disturbance. Intuition would lead to the belief that this type of air flow would be desirable. It would make sense to assume that this smooth undisturbed air would create the least amount of resistive force due to friction. The golf ball seemingly defies this theory by traveling farther with its disruptive surface texture that creates the second flow characteristic, turbulent flow. Turbulent flow is flow that is disturbed and creates whirlpool like features. The turbulent air actually lessens the difference in velocity of the air layer that is extremely close to the ball compared to the rest of the air and so lessens the friction acting on the ball.
Investigating the Bounce of a Tennis Ball after It Has Been Dropped From Certain Height
Investigating How the Height From Which a Table Tennis Ball is Dropped Affects Its Bounce. When a table tennis ball is dropped onto a surface, it bounces. The height of the bounce depends upon a number of factors: the pressure of the air in the ball, the height from which it is dropped, its. material, mass and temperature; the type of floor surface, its temperature and its angle and the acceleration due to gravity. temperature and the air resistance of the air that the ball will pass.
The principle described is that of elasticity. If a collision is very elastic, more kinetic energy is conserved resulting in a greater amount of acceleration or deceleration of the objects involved. Within the context of football helmets, inelastic collisions mean smaller magnitudes of acceleration and fewer brain injuries.
Years of playing the game and not improving, Gawande incidentally finds himself play tennis with a young man who is a tennis couch. The young man gives Gawande a tip about keeping his feet under his body when hitting the ball. At first he is uncertain, stating, “My serve had always been the best part of my game….. With a few minutes of tinkering, he’d added at least ten miles an hour to my serve. I was serving harder than I ever had in my life” (Gawande, 2011, p.3).
Physics can be used to explain a lot of things. In this paper I described some basic concepts in physics that are relevant to basketball, particularly the three main parts of basketball, shooting, dribbling and passing. So the next time you are out shooting some hoops just think of all the physics that are being applied and you could be one step away from being a physicist, and have fun.
...t abrasions and scrapes. Also, concrete does not have that much traction, especially not as much as wood. Wood, as seen in our experiment, is hard enough to get the ball far off the ground, but is not too hard because if you fall it will not hurt as much as a harder surface. Hardwood floors offer good bounce, so there is less wear and tear on one’s legs and knees. Basketball obviously could not be played on a soft surface such as carpet because the ball will not get off the ground that much, and carpet does not have much traction, so people would slip everywhere!
One big difference is a type of balls used and what is used to make the balls. For a tennis ball, the "modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurized air inside the rubber core makes the ball bounce. Balls that haven 't got enough pressure inside make a thud when they hit the floor. These are called dead balls." This information I found on www.bbc.co.uk, which also explains a little bit of the history of the tennis ball. In golf, the balls are made up of "many materials used in golf balls but the majority can is broken down into three categories: rubbers, ionomers and urethanes. In the past, golf balls have been made of wood, leather wrapped around feathers, sap from a gutta tree and sap from balata trees." This information is found on www.srixon.co.uk/ which goes further into the making of the golf balls. The tennis ball is two and a half inches (6.35cms) in diameter and weighs two ounces (56.7g). A golf ball is 1.6 ounces (45.93g) and 1.7 inches (42.7mm) in diameter. Even though tennis balls and golf balls are different sizes, they almost weigh the same weight. I find it very interesting that the balls are such different sizes but only a few ounces different in
Hearing the loud “thump” as the ball hits the racket is extremely satisfying, especially if your life now revolves around this fast-paced and exhilarating sport. Tennis is an outdoor game played by two individuals or pairs of players on a clay or grass court that’s divided by a low net. Each game is played with tennis rackets and small, yellow elastic balls. Tennis was first introduced in Wales and the United Kingdom in 1873 by “Major Walter Wingfield” (tennistheme.com). While most sports are easy to pick up, tennis takes extreme dedication to learn how to play the game, to perfect the amount of technique it takes, as well as its great impact on one’s personal life.
In the natural world, physicists find new discoveries constantly. Some of these discoveries include the study of motion and forces. The well-known scientist, Isaac Newton, came up with the three laws of motion, which state rules and facts about the movement of an object. Our textbook states the laws of motion, as ?A body in motion will remain in motion at a constant speed and direction unless an outside force acts upon it. The net force acting upon an object is directly related to the mass and acceleration of the object resulting acceleration is in the direction of the net force, which is the vector sum of all forces acting upon the object. Finally, the third law of motion states that when one object applies a force to another, the other object applies the same amount of force back to the first object, but in opposite directions.? With these laws of motion, we can understand in detail how our world works. Also, that the movement of an object is more complex than a simple push. This discovery is taught to students all over the world because of its great importance and will continue to enhance the knowledge of the mystery of our earth.