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Physics is Everywhere Essay
As Fall comes to a close and winter is upon us we can take an opportunity to reflect. Fall is the season of many events. For some it is the turning of the leaves that make it so memorable. For students, the excitement of a new school year and what that brings is always on the mind. Also on the mind of students, and professional fans alike, is the exhilaration and anticipation of a new season on the gridiron. This past fall I had the unique chance to document this exhilaration in a different manner. I chose to view the game of football through the eyes of science, physical science in particular. And with my own eyes, I will never view a football game in quite the same way again. Dr. Timothy Gay, a professor of physics at the University of Nebraska at Lincoln said, “Football is a manifestation of physics and it’s something people can relate to. It’s physics in action” (http://physics.unl.edu/outreach/football.html). Dr. Gay is right!
What effect does altitude have on the flight of a kicked ball? How do Newton's laws of motion apply to blocking and tackling? What does the science of physics tell me about the best possible chase strategies for defensive backs? To get even simpler, when you throw a football across the yard to a friend, you are using physics. You make adjustments for all the factors, such as distance, wind and the weight of the ball. The farther away your friend is, the harder you have to throw the ball, or the steeper the angle of your throw. This adjustment is done in your head, and even with a soft grip of physics I have from one quarter with Dr. Mike Grams, I can tell you that these factors relate to physics.
In this essay, I hope to demonstrate the scienc...
... middle of paper ...
...tinctive, most players and coaches don't consciously translate the mechanics of physics into the game. By making that translation, we can understand and appreciate even more just how amazing some of the physical feats on the football field really are.
Works Cited
Football Physics with Dr. Tim Gay. 01 Feb. 2001. University of Nebraska. 15 Nov.
2005. <http://physics.unl.edu/outreach/football.html>
Gay, Ph.D., Timothy. Football Physics: The Science of the Game. Emmaus: Rodale,
2004.
Grams Ph.D., Mike. 15 Sept 2005- 17 Nov 2005. Lecture. 21st Century Physics and
Astronomy. University of Denver Department of Physics. 2005
Hewitt, Paul G. Conceptual Physics: tenth edition. San Francisco: Pearson, 2006.
The Physics of Football. 03 Mar. 2003. The American Physical Society. 15 Nov.
2005. <http://physics.unl.edu/outreach/football.html>
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American football is full of exciting competition, but do we realize the danger! Helmet safety in football remains an immense problem as the sport accounts for the highest incidence of concussions. Since leather football helmets, the technology for safer helmets has improved drastically and continue to improve. The development of newly designed helmets and technology has lowered the risk of head injuries for players. Furthermore, improvements in helmet testing methods have led to better understanding head injuries and the protectiveness of the helmet. In respect, football helmet safety still remains a challenge, such as a necessity of a proper categorization system to rank helmets and regulations to improve helmet safety. Regardless, standards and regulations attempt to address helmet safety through government intervention and a proper measuring system for football helmets. Despite the cultural perception of football, measures are taken to ensure safety, such as the reforms and education with regards to playing safer football. I intend to address the technological advances and regulation of football towards the discussion of helmet safety. Therefore the aggresivity in football’s culture should embrace stronger helmet standards and regulation that are promoted through improved testing methods and innovations because of the need to prevent further dangerous head injuries, especially concussions.
Baseball is a fascinating sport that is exceptionally fun to play. This assignment is all about understanding the physics of a few key aspects of this sport. One might ask what physics could have to do with baseball? Like most sports baseball involves physical motion. Baseball encompasses all three planes of motion through throwing, hitting, and fielding. All of the classical laws of mechanics can be applied to understand the physics of this game.
Concussions have become arguably the #1 most prevalent issue in football today. The number of concussions throughout football has been rising for the past 20-30 years and there seems no way of stopping them. However, the NFL and many private researchers are set on finding a way to conquer this issue. They want to stop these concussions from happening and prevent the diseases resulting from them that have ruined so many football families’ lives. In order to solve this problem, I think that these researchers need to combine all of their knowledge to solve an issue that so many want solved. As soon as we conquer this “illness” we can return to enjoying the game that we love.
Imagining myself as a high school soccer coach, I would like to optimize my team’s kicking performance. Some players consistently kick the ball successfully with the correct use of power and accuracy. To ensure that all players are able to achieve the same optimal kicking habits, this paper will document (1) the effective and ineffective habits of kicking, (2) describe biomechanical based kicking assessments, (3) describe how these assessments will measure the effective aspects of kicking and expected findings, and (4) provide suggestions on how I may modify programming based on the insights gained from these assessments.
In American football, helmets are required to decrease traumatic brain injuries and have been successful in doing so. A large part in the success of helmet design is improvements in technology. The sizes of athletes have gone up to make football more dangerous. To protect against brain injury, helmets designs have changed to become heavier and wider, filled within the space are energy absorbing materials, air space and padding to protect the skull upon impact. Originally, helmets were designed to prevent only traumatic brain injuries, but technology is advancing to fill the gap of concussions. Until recently, the seriousness of concussions were not considered part of the equation that needed to be addressed, so manufactures did not utilized in constructing helmets to address this issue (Post et al. 653). Upon predicting risk of concussions in tests, by themselves linear and rotational acceleration are not suitable measurements for modern helmets. These testing measurements do not address the rotational forces and minor hits to the brain which are associated with concussions (Post et al. 654). Given the seriousness of concussions in contact sports, more attention is given to prevent and reduce concussions through testing methods and advancing technology, stronger regulation and changes to the sport. As stated in the article involving the National Football League (NFL), “The risk involved in playing sports are also very real. The NFL is struggling with serious mental and physical health problems because they sustained repeated mild traumatic brain injuries, is what concussions are called. (“Concussions and Marketing of Sports Equipment” 6).
Have you ever been watching a college or NFL football game and see a player’s helmet fall off, but continue to play? The National Collegiate Athletic Association, NCAA, has since invented two rules to prevent players from continuing a play once their helmets have fallen off due to concerned viewers and team’s staff. While many were concerned about the safety of the players and their chance of receiving traumatic brain injury from head to head or any head to object contact, others believe the rule should be modified or completely taken out of the rule book. Most incidents that cause a player’s helmet to fall off are due to helmets not being tight enough, the wrong size or shape. Viewers and even NFL spokesman say that helmets flying off of
The problems and injuries that come with playing football have been obvious since the beginning, and to this day are still being discovered and researched in hopes of finding solutions so that the sport is not so dangerous. Malcolm Gla...
Even though football players are aware of the dangers the game can bring upon them, they take part despite it. The passion, the joy it creates; for professionals it’s also the devoted fans and compensation they receive is what keeps the players motivated. Today players are much bigger, faster, smarter, bigger, better. The game is more physical. The sport has never been so competitive. The popularity has reached new peaks, as much that the NFL has thoughts of moving a team to London, England. Additionally, Super Bowl XLVII (47) was one of the most watched television events of all time; an astonishing 108.4 million viewers (The Associated Press). Fans worship their teams and love to see big hits. Football is a contact sport; injuries are no doubtingly part of it. Concussions are one of the many detriments caused by the ruthlessness, but one of the few with perpetual effects: consequence of the brutality.
When you throw a football across the yard to your friend, you are using physics. You make adjustments for all the factors, such as distance, wind and the weight of the ball. The farther away your friend is, the harder you have to throw the ball, or the steeper the angle of your throw. This adjustment is done in your head, and it's physics. Physics is the branch of science that deals with the physical world. The area of physics that is most relevant to football is mechanics, the study of motion and its causes. The three main categories of motion that apply to the game are:
First of all, the rules of football require one to equip himself with approximately twenty pounds of equipment, including a helmet, shoulder pads, and girdle pads. This is because football has the most contact involved out of all sports. In a football game, the norm is that the home team wears colorful jerseys and the visiting team wears white jerseys. Moreover, if a team’s offense is on the field, their defense is on the sideline. A team’s offense includes a center, who snaps the ball to the quarterback. The “QB” then has a choice to run with the ball, hand it off to a running back, or throw it to a wide receiver. The quarterback has an offensive line to protect him from the assailing defense. If a teammate happens to score a touchdown, he earns his team six points, which allows for the kicker to kick an extra point, and give his team a total of seven points. However, if the offense fails to travel at least ten yards within four attempts, or “downs,” they have the opti...
The one thing that interests me is bowling. I have been playing all my life and after a whole semester and a half of being in Mr. Fetter’s class, I realized that everything has physics in it. One night after going bowling with my girlfriend(s) I wondered why when I hit the first pin, only seven went down and thus I lost the game. So, I got on the Internet and found a lot of articles and web sites talking about the physics of bowling. A lot of the web sites were brief descriptions. A guy named Paul Durbin wrote many articles on physics. One of his articles he discussed was about bowling. He mentioned one thing we already went over this semester in physics class. But it seems to me that he neglected to mention other forces the play a big role in bowling and the physics behind it.
Over the years, science has come to play a big part in sports all around the world. Whether an athlete is shooting a ball, or even just running up and down a playing field, there comes in factors of science determining the outcome. The game of basketball features projectile motions and collisions, energy and momentum, and much more. By studying the physics behind a basketball shot, one can develop insight into the shooting conditions most likely to result in a successful shot. This paper will focus on the physics behind the most fundamental shot in all of basketball, the lay up, and the backspin on a jump shot.
To trace the energy of an electron from the time it enters the x-ray circuit until it’s converted to light, start with a standard U.S. 60-HZ AC (alternating current) wall circuit with a nominal root mean square (rms) voltage of 220. An alternating current is created by, electrons moving in one direction and then reversing to move in the opposite direction. Because of this process in electron motion the AC is constantly establishing, collapsing, reestablishing, and re-collapsing its surrounding magnetic field. The incoming line current will supply power in the form of a three-phase power cycle to the main x-ray circuit and filament circuit. A generator, converting mechanical energy to electrical, provides three-phase power. This creates the needed electrical energy for x-ray. There is a primary and secondary side to the main circuit providing low and high voltage. The main circuit will receive and modify incoming line power to the x-ray tube to produce x-rays. The filament circuit provides modified power to the filament of the x-ray tube by passing through the filament step-down transformer. The filament step-down transformer is necessary to decrease the incoming line voltage to the 5- to 15-volt and 3- to5-ampere range needed to heat the x-ray tube filament. Once power is supplied to the main circuit through the main breaker the exposure switch is engaged to allow current flow. The exposure switch controls the process of electromagnetism, with the flow of current electromagnetism is in effect. When tripped, the exposure switch also activates the rotating anode of the x-ray tube. Adjacent to the exposure switch in the main x-ray circuit is the timer circuit. This is used to end the exposure at an accurate preset time. With the tim...