Theories of Friction

Theories of clankKeith convertFrictionAccording to the Encyclopaedia of Britannica, a rubbing is a lodge created by rubbing and can slow things mess and then in conclusion stop them. It is a kind of forcethat resists the sliding or rolling of onesolidobject over another. (Encyclopaedia of Britannica, 2014) Frictional forces, such as the traction needed to travel without slipping, may be beneficial solely they excessively present a great measure of opposition tomotion. We could not walk without the clash between your shoes and the ground. As we try to maltreat forward, we push our foot backward. Friction holds your shoe to the ground, allowing you to walk. Consider how difficult it is to walk on slippery ice, where there is little friction. It is also friction in the tires that allows the car to stay on the road, and friction in the clutch that makes it viable to drive at all. From matches to machines to molecular structures, friction is one of the most fundamental phenom ena in the physical worldWriting use draws uses friction. In fact, you wont be able to dismantle hold a draw without friction. The pen willing only slip out of your hand when you attempt to hold it. The plumbago pencil led will not be able to make any single mark without friction. Even a pencil eraser uses friction to rub off c beless mistakes written down with pencil jumper lead. The particles worn off gather up the pencil lead from the paper, when you be rubbing the eraser on the lead that wears out the eraser due to friction.Today, Friction is is a phenomena that happens in our anyday lives. From the Health point of view, Lets take walking for example, as we all know our shoes are designed to protect our feet from sharp objects as well as time lag our feet warmed up. However, it is more sophisticated than we think if we look into the science privy it. According to Jasmine C. Menant from Journal of Rehabilitation Research and Development (JRDD), footwear influences pr oportionateness of hatful and the subsequent risk of slips, by altering somatosensory reach back to the foot and ankle and modifying frictional conditions at the floor interface. manner of walking barefoot,, in socks or in high- list shoes take hold been proven to addition the problems of issue forths in older people. Many frictional aspects that are not mutually exclusive pitch to be taken into consideration. There are also few other footwear characteristics such as heel collar height, sole hardness, as well as read and endocarp geometry, these few characteristics also affect the measure of balance and gait. Because many decrepit uses suboptimal shoe, this can maximize safe shoe usage and an effective fall pr chargetion strategy. (jasmine, 2008) Based on their researches, they sorted out that, inside and orthogonal the house, older people should wear shoes with low heels and firm slip-resistant soles. upcoming shoe making industry should make sure that their shoe hold u p the benefits of tread sole shoes for preventing slips and shoes with high collar or flared sole for a better grid in harsh weathers. I would say friction does not solve the problem of old people falling but rather it only am overcome it. Although that is the case, it dumb brings benefit in putting application science of friction to even our footwear. (NO CAMELS NEWS, 2014)From social point of view, Friction does plays a role in every one of any education level. draw for instance is used by all students, kids and even adults of different profession. Pencils were among the basic equipment issued to Union soldiers during the Civil War. Pencil marks are made when tiny graphite flecks, a great deal beneficial thousandths of an inch wide, stick to the fibers that make up paper. But when we write something reproach by mistake, this is where rubber comes in. The friction created between the airfoil of the rubber and the surface of the lead scribbled on paper is used to remove the e rrors that were written earlier. (Christopher, 2007) early(a) bad side from friction like heat were also dig by modern day scientist as It is also because the paper is removing the graphite from the pencil through friction, the heat is not transferred to the tip because the material that would obtain been modify by the friction between the paper and the tip has been go forth on the piece of paper. So, to heat the pencil tip up, so we would have to write with the pencil quicker than it is possible or for very widen sum ups of time and even then because of the part that may have been heated by friction, it is then removed. This leads that the tip of a pencil does not even get hot during writing. This has affected us socially in the pencil making industry. (PHYSICS, 2013) Today , most pencils sold in America straightaway have eraser tips, while those sold in Europe usually have none.On the other hand, Friction also has its own disadvantages in our routine processes. For instan ce, friction is also a usage for the wear and charge on some bike gears and other mechanical parts. Thats why extra notes are needed on clouding lubricant which are often used to reduce the friction that causes wear and tear in between moving parts.In addition to cars and wheels/tires, there is also internal friction. Internal friction is what allows you to build up an oil wedge in rotating machinery that relies on a wedge of oil to separate the metal shaft and whatever the military capability surface happens to be, or the ball bearings from the inner and outer race. With the help of friction, you wont need brake to stop any spinning devices. So, in a nutshell, friction is sometimes a bad thing when it results in the loss of mechanical efficiency by converting some of the power use to useless heat. However, it is also a necessary feature when it is the primary motive a piece of equipment operates and even then, a portion of that energy will be lost as heat. There is therefore n o sinless machines or perpetual motion machines, we always lose some amount of energy to frictionHence we have to pay more for the cars we buy because of these operating cost of production in coming up with these features to reduce friction. (Ayush, 2014)In conclusion, in my opinion I think that because friction itself is already a resistance force that slows down or prevents motion, it is needed in most applications to prevent in some cases, there is an advantage of having friction. However, likewise much friction can be very annoying, because it can also be an obstacle to motion and sometimes cause the need for using extra energy. A good balance is necessary to get mediocre enough friction. Slipping or sliding. Frictional force is neither advantageous nor disadvantageous intrinsically. The advantage or disadvantage comes not from the force, but from whether it helps or hinders the desired outcome. (1181 words)Bibliography1) Ayush, S. (2014). Why greater friction causes increase d wear and tear? Retrieved 27 November, 2014, from http//www.answers.com/Q/Why_greater_friction_causes_increased_wear_and_tear2) Christopher, D. (7 May, 2007). HomeMay20 Things You Didnt Know About Pencils. Retrieved 19 November, 2014, from http//discovermagazine.com/2007/may/20-things-you-didnt-know-about-pencils3) Encyclopaedia of Britannica. (2014). Encyclopaedia of Britannica. Retrieved 14 Nov, 2014, from Friction http//global.britannica.com/EBchecked/topic/220047/friction4) jasmine. (8 November , 2008). Rehab Research. Retrieved 16 November, 2014, from Optimizing footwear for older people at risk of fall http//www.rehab.research.va.gov/jour/08/45/8/pdf/menant.pdf5) NO CAMELS NEWS. (2014). Israeli Fall-Prevention Motorized Shoe Is A Step In The Right Direction. Retrieved 18 November, 2014 , from http//nocamels.com/2014/05/israeli-fall-prevention-motorized-shoe-is-a-step-in-the-right-direction/6) PHYSICS. (2013). How hot does the tip of a pencil get while writing? Retrieved 20 November, 2014, from http//physics.stackexchange.com/questions/66770/how-hot-does-the-tip-of-a-pencil-get-while-writingAppendix look-alike B Shoes created by Israel