KoG Boards | Profile for -CGS2-

[KoG] KoG Boards » Profile for -CGS2- Join Premium! Google Search
Login \| Register \| Options \| Help \| Staff \| ToS \| Contact Moderators \| Board Spotlight: The KoG City
Announcement: Announcement 01-09-09 (read)
Send this user a Private Message \| Add to Watched User List \| Add a Comment

-CGS2-'s Profile
Info
UID:	3737
Username:	-CGS2- (Member)
Board Title:
Real Name:	somethin fu
Country:	United States of America
Company:
Job Title:
Website:
Email:	rpurdy@netscape.com
ICQ UIN:	0
MSN ID:
Yahoo ID:
AIM ID:
Gender:	Male
Age:	17
KoG Profile Added:	7-Oct
KoG Profile Updated:	2-Jan
Gamer Info
Online Gaming Name:
Comrade Nickname:
Xbox Live Gamertag:
Wii Number:
Playstation Network ID:
Clan Affiliation:
Picture

KoG Board Activity
Posts:	465 (View History)
Board Dollars:	$710
Last Login Date:	19-Jun
Last Post Date:	20-Jan
Watched Users:	-CGS2-, Nitz, Zabuza
Watched By Count:	4
Biography
http://www.channelm.ca/modules/ContentExpress/img_repository/programming_law_svu.png Textures Effect on the Throwing Accuracy of a Football 8th Grade 11/16/2006 Outline I. Introduction A. When you�re throwing a wet football and you seem a little off, have you every thought of what causes your decline in accuracy? B. Is a person more accurate when throwing a wet or cry football? C. Thesis Statement II. Primary Skin Layers A. Epidermis B. Dermis C. Hypodermis III. Skin A. Repairing Skin B. Job/Importance C. Aging Effects IV. Lubricants A. Importance B. Different Lubricants V. Friction A. Increasing Friction B. Static Friction C. Limiting and Kinetic Friction D. Sliding Friction E. Rolling and fluid Friction VI. Friction Ridge A. Job/Importance B. How They Are Formed C. Injury/Repair VII. Composite Materials A. Creation/Uses VIII. Experiment A. Restatement of Problem B. Hypothesis C. Materials D. Procedures E. Controls F. Variables G. Data H. Analysis of Data IX. Conclusion A. Restatement of Thesis B. Hypothesis- Correct or Not C. Real World Connection X. Graphs/Data Charts XI. Bibliography XII. Works Cited Procedures: 1. Walk into living room 2. Pick up football, data charts, and tape 3. Walk into kitchen 4. Get a cup 5. Walk into garage 6. Get a bucket 7. Walk into kitchen 8. Fill the bucket 9. Walk through the garage 10. Walk around to the back yard 11. Walk up to fence 12. Tape a boxed target 13. Walk 15 steps back 14. Fill cup with water 15. Dump cup onto football 16. Throw football at target 17. Record the throw on a chart 18. Repeat steps 14-17 4 times a day 19. Repeat steps 1-17 for 4 days 20. Walk into living room 21. Pick up football and data charts 22. Walk into kitchen 23. Walk into garage 24. Walk outside and into the backyard 25. Stand 15 steps away from target 26. Throw football at target 27. Record the throw on a chart 28. Repeat steps 25-27 for 4 times a day 29. Repeat steps 20-28 for 4 days When you�re throwing a wet football and you seem a little off, have you ever thought of what causes your decline in accuracy? Is a person more accurate when throwing a wet or dry football? Friction and the friction ridges are the explanation for a person�s accuracy when throwing a football, but this could all be altered if there were a lubricant such as water coating the football�s exterior. The Epidermis is the outer most layer of the skin. It is made of four different cells: Keratinocytes, Melanocytes, Langerhans, and Merkels. The Epidermis is divided into several layers. Within these layers cells are formed by mitosis. They move up the sub layers and change in several ways. Epidermis (skin) - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Epidermis_%28skin%29 They then become filled with keratin. They eventually reach the top (stratum corneum). They then eventually shed off. This whole process is called keratinization. The Epidermis is divided into 5 sub layers: Stratum Corneum, Stratum Lucidum, Stratum Granulosum, Stratum Spinosum, and Stratum Germinativum. Epidermis (skin) - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Epidermis_%28skin%29 The Epidermis itself is like a protective wrap for the body. It protects everything on the inside. The Epidermis contains no blood vessels. The vessels reside in the lower layers of the skin. The Epidermis is nourished by diffusion from the Dermis. Epidermis (skin) - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Epidermis_%28skin%29 1 The Dermis is a layer of skin that resides underneath the Epidermis. The Dermis is connected to the Epidermis by a basement membrane. The Dermis houses the nerve endings. The Dermis also houses the Hair Follicles, Sweat Glands, Sebaceous Glands, Apocrine Glands, and Blood Vessels. The Dermis is divided in two areas: the Superficial Area called the Papillary Region and the Deep Thick Area called the Reticular Region. Dermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Dermis The Papillary Region is made of Areolar Connective Tissue. The Papillary Region gives the Dermis a bumpy surface to lock together with the Epidermis. The Papillary Region helps shape the Epidermis�s layer. The Papillary Region essentially makes the friction ridges. The friction ridges give the skin the ability to grip onto objects. Dermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Dermis The Reticular Region lies in the Papillary Region. The Reticular Region is generally thicker, but that is not always the case. The Reticular Region is made of dense irregular tissue. Reticular fibers are weaved throughout this region. These fibers give the Dermis it�s strong, extensible, and elastic characteristics. Dermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Dermis The Hypodermis is the very bottom layer of skin. The Hypodermis has several different names: the Hypoderm, Subcutaneous Tissue, or Superficial Fiscia. There are several different cells that are found in the Hypodermis: the Fibroblasts, Adipose, and 2 Macrophage. The Hypodermis is mainly used for fat storage. Hypodermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Hypodermis The skin repairs itself quite quickly. Length and depth of the injury plays a big role in its repair. Depending on the size and how much of an area was injured the complete repair of the injury might take longer or less time. There is no way to exactly predict how long the healing process will take, but you can make estimations. Gray, S.H. (2006). The Human Body The Skin. Chanhassen, MN: The Child's World. The skin plays a big role in the protection of the body. The skin is sometimes referred to like a protective wrap. The skins main purpose is to protect the inside of the body, but not just that. It does many other things, like expel waste, cushion the body, houses important parts of the body, and allow us to grip objects. Gray, S.H. (2006). The Human Body The Skin. Chanhassen, MN: The Child's World. The skin expels waste by its sweat glands. The gland puts sweat through the skins pores, and then it�s out of the body. The dermis cushions the body from stress and strain. The skin houses quite a few important parts in our body. It houses the blood vessels and nerves, which are important for our physical senses and circulation. One of the most important functions of the skin though is forming friction ridges. Friction ridges are skin bumps formed into different patterns. They allow us to grip objects so we can wield them. Gray, S.H. (2006). The Human Body The Skin. Chanhassen, MN: The Child's World. As 3 we all age our skin changes either to our liking or not liking. Our skin is very firm and stretchy during our youth, but those characteristics change over time. With age the skin loses these characteristics, and becomes less firm and stretchy. As a result the skin becomes saggy. These changes don�t happen too quickly, they generally begin at later ages. Gray, S.H. (2006). The Human Body The Skin. Chanhassen, MN: The Child's World. Lubricants are very important for things to function. Lubricants are applied to objects so that they will be easier to move. Things like oil, water, and grease are lubricants. They are used on cars and machines and many other items that are used daily. Lubricants make things run smoother so they won�t wear down so rapidly, and they can save you time and money. Myron, H (2/18/2005). Water and Friction. Retrieved October 5, 2006, Web site:http://www.newton.dep.anl.gov/askasci/eng99/eng99377.htm Lubricants are made from a wide variety of liquids. There are several different forms of lubricants: liquid, greases, and pastes. Very common lubricants are water, mineral oil, vegetable oil, and synthetic oils. The lubricants texture is very important to consider when choosing one. If the lubricant is needed for something like a machine gears something of a high viscosity would be used because it will stick and stay onto the gears. If something like water or vegetable oil were to be applied they would most likely slide straight through the gears. The viscosity and how sticky or loose the substance is will be effective, but only if applied for the right situation. Lubricant - Wikipedia, the free encyclopedia. Retrieved October 5, 2006, Web site: 4 http://en.wikipedia.org/wiki/Lubricant#Purpose If you have ever had the problem of not being able to grasp an object there are two options to overcome this problem. You could either make the surfaces exterior rougher, our cover your hands with something rough. You would make the exterior rougher by making it jagged. On our palms and feet we have friction ridges. Friction ridges are like microscopic bumps. The jagged pieces would sit in between the ridges and allow you to grasp the object better. Holt, Rinehart, and Winston, (2001). Physical Science pg. 120 and 124 Static Friction is one of many different forms of frictions. It happens when two objects aren�t moving consistent to each other. In most cases static frictions is higher than kinetic. Rolling friction is a form of static friction. It happens when an object rolls on another. Though it doesn�t seem like it should be classified underneath this it is. Here is an example, a cars tire rolls across the road, the road itself doesn�t move, but the wheel does. Static friction is when two objects are moving consistent with each other, and the ground is moving only the tire is, so they aren�t being consistent therefore classifying rolling friction under static. Tipler, Paul (1998). Friction. In Physics for Scientists and Engineers: Vol. 1 [web]. WH Freeman & Co. Retrieved October 4, 2006, fromhttp://en.wikipedia.org/wiki/Friction Limiting Friction is the force of friction right before it moves. So it essentially begins right before Kinetic Friction. Kinetic Friction is friction acting on a moving object. Kinetic Friction happens when two objects move consistent to each other and rub together. Since friction is always applied in a way that contradicts movement kinetic 5 friction is always negative in the sense of what it does. Tipler, Paul (1998). Friction. In Physics for Scientists and Engineers: Vol. 1 [web]. WH Freeman & Co. Retrieved October 4, 2006, fromhttp://en.wikipedia.org/wiki/Friction Sliding Friction happens when an object slides across another. An example of this is placing a book on a desk and pushing it around. There are two things that can cause problems though. If the object is too heavy than it won�t slide, and if the surface is too rough it won�t be able to slide. "Sliding Friction." Wikipedia. 19 Nov 2006http://en.wikipedia.org/wiki/Sliding_friction Rolling Friction is not exactly that bad of a thing. Rolling friction allows easy transportation when moving objects. For example, it would be easier to move a desk with wheels on the bottom than a desk with a flat bottom. Fluid Friction is friction between a solid and liquid while it�s going through it. You could relate fluid friction to a swimmer, as the swimmer glides throughout the water passes over his/her skin. Holt, Rinehart, and Winston, (2001). Physical Science pg. 123 Tipler, Paul (1998). Friction. In Physics for Scientists and Engineers: Vol. 1 [web]. WH Freeman & Co. Retrieved October 4, 2006, fromhttp://en.wikipedia.org/wiki/Friction Without Friction Ridges life would be very hard for everyone. Friction Ridges can only be described as microscopic bumps that are on our inner hands and feet. They provide us with the ability to grip objects so that we may be able to yield them. They do not only provide us with the ability to grip objects but to expel waste from our bodies as well. Our pores are on top of out friction ridges, and that is one of the areas in which our 6 sweat is expelled through. Hunter, I Friction Ridge Skin. Retrieved October 6, 2006, Web site:http://www.policensw.com/info/fingerprints/finger04.html Friction Ridges are not formed on the Epidermis. The friction ridges are formed in Papillary region. The ridges are formed by a baby�s fourth pregnancy month. The papillary region provides the Dermis with a bumpy surface to lock it together with the Epidermis. The bumpy surface in which locks the two layers together gives the ridges their shape, and forms them. Hunter, I Friction Ridge Skin. Retrieved October 6, 2006, Web site:http://www.policensw.com/info/fingerprints/finger04.html Dermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Dermis It�s important for friction ridges to repairs because without them the particular area has lost its gripping capability. As long as the injury does not exceed the Epidermis the ridge(s) will return back just as they were before. If it does happen to exceed the Epidermis into the Dermis region the injury will leave a scar. The ridge pattern will be altered because of the scar. A composite materials making process is not exactly what is called simple. A composite material is made of two or more material. It�s kind of like a compound, but with materials not elements. The composite material must be made to shape. Composite material - Wikipedia, the free encyclopedia. Retrieved October 6, 2006, Web site:http://en.wikipedia.org/wiki/Composite_material 7 Composite materials are used for a variety of things. One of the most interesting uses for some composite materials is using it for reinforcement. One example of a simple composite material is a simple mud and straw brick. Some modern day uses for composite materials are to pave roads. Portland cement concrete, Mastic asphalt, and asphalt concrete are all composite materials that are used on a regular basis to pave roads. Composite material - Wikipedia, the free encyclopedia. Retrieved October 6, 2006, Web site:http://en.wikipedia.org/wiki/Composite_material Will a person be more accurate when throwing a dry or wet football? My hypothesis is that a person would be more accurate if the football is dry because I think the water would act as a lubricant. Materials -Water -Bucket -Football -Cup -Duck tape Procedures: 1. Walk into living room 2. Pick up football, data charts, and tape 8 3. Walk into kitchen 4. Get a cup 5. Walk into garage 6. Get a bucket 7. Walk into kitchen 8. Fill the bucket 9. Walk through the garage 10. Walk around to the back yard 11. Walk up to fence 12. Tape a boxed target 13. Walk 15 steps back 14. Fill cup with water 15. Dump cup onto football 16. Throw football at target 17. Record the throw on a chart 18. Repeat steps 14-17 4 times a day 19. Repeat steps 1-17 for 4 days 20. Walk into living room 21. Pick up football and data charts 22. Walk into kitchen 23. Walk into garage 24. Walk outside and into the backyard 9 25. Stand 15 steps away from target 26. Throw football at target 27. Record the throw on a chart 28. Repeat steps 25-27 for 4 times a day 29. Repeat steps 20-28 for 4 days Controls: football, bucket, water, duck tape, duck tape position, and target position Independent Variable: Footballs wet texture, Footballs dry texture Dependent Variable: The accuracy of the throw Wet Football Tests 1 Test 2 Test 3 Test 4 Within Target * 1-3 inches out * * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out 10 Dry Football Tests 1 Test 2 Test 3 Test 4 Within Target * * 1-3 inches out * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * * * 1-3 inches out * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * 1-3 inches out * * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * * * 1-3 inches out * 4-7 inches out 8-11 inches out It is quite evident that the dry footballs accuracy is by far better than the wet. I feel this is so because the water had reduced the ordinary friction between your hand and the ball. The water lied between and in doing so made a barrier between the hand and the ball allowing less friction between the two. It acted as a lubricant. Friction and the friction ridges are the explanation for a person�s accuracy when throwing a football, but this could all be altered if there were a lubricant such as water coating the football�s exterior. My hypothesis was correct. The dry football had better accuracy than the wet. The water that was on the football laid between the hand and the dry area of the football. As a 11 result it gave the thrower less friction so their grasp on the football was severally limited causing the throw to be less accurate. As for the dry football, the thrower had full grip and could accomplish regular throws. The information gathered from this experiment is something that is quite valuable to others. In particular this information would help football quarterbacks, since their duty is to throw a football. This information provided will be helpful for anyone in general put in the same situation with a wet football. Not just this experiment, but the information throughout the paper will give them insight as to what they should do to make sure their throws are at top notch shape. This experiment�s in depth with the world seems a bit shady, but people�s (NFL players) success relies on this valuable information because their throwing must be superb almost all the time. 12 Works Cited Composite material - Wikipedia, the free encyclopedia. Retrieved October 6, 2006, Web site:http://en.wikipedia.org/wiki/Composite_material Dermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Dermis Epidermis (skin) - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Epidermis_%28skin%29 Gray, S.H. (2006). The Human Body The Skin. Chanhassen, MN: The Child's World. Holt, Rinehart, and Winston, (2001). Physical Science. Austin, Texas: Holt Science & Technology. Hunter, I Friction Ridge Skin. Retrieved September 21, 2006, Web site:http://www.policensw.com/info/fingerprints/finger04.html Hypodermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Hypodermis Lubricant - Wikipedia, the free encyclopedia. Retrieved October 5, 2006, Web site:http://en.wikipedia.org/wiki/Lubricant#Purpose Myron, H (2/18/2005). Water and Friction. Retrieved October 5, 2006, Web site:http://www.newton.dep.anl.gov/askasci/eng99/eng99377.htm Tipler, Paul (1998). Friction. In Physics for Scientists and Engineers: Vol. 1 [web]. WH Freeman & Co. Retrieved September 21, 2006, fromhttp://en.wikipedia.org/wiki/Friction Wet Football Dry Football Wet Football Tests 1 Test 2 Test 3 Test 4 Within Target * 1-3 inches out * * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Dry Football Tests 1 Test 2 Test 3 Test 4 Within Target * * 1-3 inches out * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * * * 1-3 inches out * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * 1-3 inches out * * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * * * 1-3 inches out * 4-7 inches out 8-11 inches out Bibliography Akerman, Nordal (1998). The Necessity of Friction. Boulder, Colorado: Westview Press. Composite material - Wikipedia, the free encyclopedia. Retrieved October 6, 2006, Web site:http://en.wikipedia.org/wiki/Composite_material Dermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Dermis Epidermis (skin) - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Epidermis_%28skin%29 Gray, S.H. (2006). The Human Body The Skin. Chanhassen, MN: The Child's World. Holt, Rinehart, and Winston, (2001). Physical Science. Austin, Texas: Holt Science & Technology. Hunter, I Friction Ridge Skin. Retrieved September 21, 2006, Web site:http://www.policensw.com/info/fingerprints/finger04.html Hypodermis - Wikipedia, the free encyclopedia. Retrieved October 4, 2006, Web site:http://en.wikipedia.org/wiki/Hypodermis Lubricant - Wikipedia, the free encyclopedia. Retrieved October 5, 2006, Web site:http://en.wikipedia.org/wiki/Lubricant#Purpose Moore, G. The History of Fingerprints. Retrieved September 21, 2006, Web site:http://onin.com/fp.fphistory.html Myron, H (2/18/2005). Water and Friction. Retrieved October 5, 2006, Web site:http://www.newton.dep.anl.gov/askasci/eng99/eng99377.htm Nave, Carl. Fluid Friction. Retrieved November 22, 2006, Web site:http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html Olsen, R.D. Fingerprint - Wikipedia, the free encyclopedia. Retrieved October 6, 2006, Web site:http://en.wikipedia.org/wiki/Fingerprint Read, Don(2002). Complete Quarterbacking. Champaign, Illinois : Human Kinetics. Scherge, M, & Schaefer , J (1999). The effect of water on friction of MEMS . Volume 6, Retrieved October 4, 2006, fromhttp://www.ingentaconnect.com/content/klu/tril/1999/00000006/F0020003/00330256#search=%22water%20and%20friction%22 (2001). Skin Anatomy � EnchantedLearning.com. Retrieved September 21, 2006, Web site:http://www.enchantedlearning.com/subjects/anatomy/skin/ Skin - Wikipedia, the free encyclopedia. Retrieved September 21, 2006, Web site:http://en.wikipedia.org/wiki/Skin "Stratum corneum - Wikipedia, the free encyclopedia." September 21, 2006. Wikimedia Foundation, INC. Retrieved November 22, 2006, Web site:http://en.wikipedia.org/wiki/Stratum_corneum Surface tension - Wikipedia, the free encyclopedia. Retrieved October 6, 2006, Web site:http://en.wikipedia.org/wiki/Surface_tension "The Whole Story on Skin." Nemours Foundation. Retrieved November 22, 2006, Web site:http://www.kidshealth.org/kid/body/skin_noSW.html Tipler, Paul (1998). Friction. In Physics for Scientists and Engineers: Vol. 1 [web]. WH Freeman & Co. Retrieved September 21, 2006, fromhttp://en.wikipedia.org/wiki/Friction Weisttein, Eric. "Surface Tension -- from Eric Weisttein's World of Physics." WOLFRAM RESEARCH. Retrieved November 22, 2006, Web site:http://scienceworld.wolfram.com/physics/SurfaceTension.html (2000). Your Gross and Cool Body � Skin. Retrieved September 21, 2006, Web site:http://yucky.discovery.com/flash/body/pg000146.html Will a person be more accurate when throwing a dry or wet football? My hypothesis is that a person would be more accurate if the football is dry because I think the water would act as a lubricant. Materials -Water -Bucket -Football -Cup -Duck tape Procedures: 1. Walk into living room 2. Pick up football, data charts, and tape 3. Walk into kitchen 4. Get a cup 5. Walk into garage 6. Get a bucket 7. Walk into kitchen 8. Fill the bucket 9. Walk through the garage 10. Walk around to the back yard 11. Walk up to fence 12. Tape a boxed target 13. Walk 15 steps back 14. Fill cup with water 15. Dump cup onto football 16. Throw football at target 17. Record the throw on a chart 18. Repeat steps 14-17 4 times a day 19. Repeat steps 1-17 for 4 days 20. Walk into living room 21. Pick up football and data charts 22. Walk into kitchen 23. Walk into garage 24. Walk outside and into the backyard 25. Stand 15 steps away from target 26. Throw football at target 27. Record the throw on a chart 28. Repeat steps 25-27 for 4 times a day 29. Repeat steps 20-28 for 4 days Controls: football, bucket, water, duck tape, duck tape position, and target position Independent Variable: Footballs wet texture, Footballs dry texture Dependent Variable: The accuracy of the throw Wet Football Tests 1 Test 2 Test 3 Test 4 Within Target * 1-3 inches out * * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target 1-3 inches out * * * 4-7 inches out * 8-11 inches out Dry Football Tests 1 Test 2 Test 3 Test 4 Within Target * * 1-3 inches out * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * * * 1-3 inches out * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * 1-3 inches out * * * 4-7 inches out 8-11 inches out Tests 1 Test 2 Test 3 Test 4 Within Target * * * 1-3 inches out * 4-7 inches out 8-11 inches out It is quite evident that the dry footballs accuracy is by far better than the wet. I feel this is so because the water had reduced the ordinary friction between your hand and the ball. The water lied between and in doing so made a barrier between the hand and the ball allowing less friction between the two. It acted as a lubricant. Friction and the friction ridges are the explanation for a person�s accuracy when throwing a football, but this could all be altered if there were a lubricant such as water coating the football�s exterior. My hypothesis was correct. The dry football had better accuracy than the wet. The water that was on the football laid between the hand and the dry area of the football. As a result it gave the thrower less friction so their grasp on the football was severally limited causing the throw to be less accurate. As for the dry football, the thrower had full grip and could accomplish regular throws. The information gathered from this experiment is something that is quite valuable to others. In particular this information would help football quarterbacks, since their duty is to throw a football. This information provided will be helpful for anyone in general put in the same situation with a wet football. Not just this experiment, but the information throughout the paper will give them insight as to what they should do to make sure their throws are at top notch shape. This experiment�s in depth with the world seems a bit shady, but people�s (NFL players) success relies on this valuable information because their throwing must be superb almost all the time.
Profile Comments
Please log in to post a comment.

Music - Donate Money - Icon Submissions

[KoG] KoG Boards » Profile for -CGS2- Join Premium! Google Search