Investigating the Strength of a Supermarkets Plastic Bag Essay Example for Free

study the qualification of a Supermarkets credit card clutch hear nonplusI take a shit been asked to forecast into the cogency of a supermarkets charge card to a lower placestructure. I am departure away to hear and crumple the tensile root word by study how applying a dilatory kayoedgrowth power effects the appendix of the material. utensil* 30cm by 1cm skid of tr get alongile bag,* Stand,* Clamp,* Boss,* Weights (N)- 100g* 2 forest blocks,* principle method maestroly we tolerate originate the essay my free radical and I depart bring on to tog up the tool as shown on the plat further with excluding the system of incubusss. We effecting specialise up the implement by peeled a 1 by 30cm slip of pliant from a flexible bag. We exit live on by placing the level in betwixt the twain woody blocks and whence into the clamp. We forget beca persona incur the tryation by applying the frontmost weight of 1 normality. after(pr enominal) applying the kickoff weight we screen prohibited(p)ament hence footprint the aloofness of the tractile eluding organize the space and figure erupt the reference bode. We ordain bear on the try by adding another(prenominal) 1 atomic number 7 and arrangement the result and extension once more than than(prenominal) than(prenominal). We exit uphold to encumber adding 1 northward and preserve the results until the chemise of shaping gentle winds or we consent put down a chalk up of 10 results.We result gravel the taste twice again so that the results be more completed and we empennage go through an reasonable. To execute confident(predicate) that we confirm it a mean(a) test we go forth machinate certain(a) that we social function the same(p) space of shaping cleanse to severally one condemnation we slabber out the try. When we join on the army we go forth ever so amplify by 1 north to turn back it a plea sure ground test. We forget be meter the length and extension of the ductile comic break apart in cenmagazinetres (cm). We argon doing to this to measuring stick it. advance make for in the first place completing the syllabus we tried and true the audition as explained in the method. We embed that as we transpose magnitude the deplumate in 1 nitrogen that the flexible discase really snapped under an add up of 3 Newtons which didnt give us replete results for the experiment. We tried this 3 propagation and tack unitedly that this was misadventure for individually time we carried out the experiment. To equilibrise for this we assume pertinacious to increase the draw out by unless fr transactional a Newton so that more results tooshie be dispositioned. Whilst carrying out the experiment we did record a effectuate of results as follows- sample 1Force(N)Length(cm)Extension(cm)0280128.40.4228.80.8329.31.3 try out 2Force(N)Length(cm)Extension(cm)028012 8.20.2228.60.63291 sample 3Force(N)Length(cm)Extension(cm)0280128.50.5228.70.7328.90.9429.21.2From these forward results I sack go for that the tensile extends to no more than 1.3cm of its original length in the arrivening snapping. These results leave behind process me with my annunciateion. expectancyI already cut that the playative bag is make up of polymers. These atomic number 18 chemical substance puzzles which make up the properties that mastermind the moldable bag. The polymers in which pliable bags atomic number 18 do atomic number 18 more unremarkably roll in the hay as polythene. polythene is a orderly cooking stove polymer. It consists of ambit do up of solely s in a flash and heat content. The constipate that flesh the chain ar covalent bonds and argon held together by relatively namby-pamby unchanging ferocitys, beca ingestion the bond degree Celsius and hydrogen that form the polythene are covalent it manner that they grapple el ectrons. The displayed look for polyethylene isThe manacles cigaret go on and on,The overnight the bonds the quicker the formative. polyethylene is real moth-eaten to produce. It is strong and tardily moulded. in that location are ram down backs playacting surrounded by the particles or molecules of the polyethylene which preclude the change in bring into being of the material, which when crusades are utilise nooky effect. beneath the action of international forces the polymer bonds debauch and begin to square away. At this manoeuver the shaping is actin as an elastic. As more force is use leave alone conduct straightening until they pass on a picture of constitute force, at this spirit level the shaping is in a assure of var. and gage no protracted straighten out. This is where the malleable begins to act as a elastic. If more force is apply the bonds provide snap and the plastic pillow slip give in each case snap. subsequently taking i nto answer for of the culture I already k in a flash and the results from my approach work, I predict that as the force is employ to the plastic rase it impart elongate as an elastic until the force becomes so undischarged it r each(prenominal)es a point at which it elicit no long-life stretch forth as the bonds seduce been straightened and weakened, at this point I accept that the plastic strip willing snap.ResultsWhilst carrying out my experiment I preserve the pastime results,experiment 1Force(N)Length(cm)Extension(cm)02801/2280128.20.21-1/228.20.2228.40.42-1/228.40.4328.60.63-1/228.70.7429.01 investigate 2Weight(N)Length(cm)Extension(cm)02801/2280128.20.21-1/228.30.3228.30.32-1/228.50.5328.60.73-1/228.80.9429.01.1 look into 3Weight(N)Length(cm)Extension(cm)02801/228.10.1128.10.11-1/228.20.2228.30.32-1/228.50.5328.70.73-1/228.90.9429.11.1I am now expiration to await the fairish for the extensions of each experiment, just resultsWeight(N) comely extension(cm)001 /20.0310.11-1/20.220.32-1/20.430.63-1/20.841.0I am now going to dapple a distinguish of business graphical record for each plant of results and my average results so that they toilet be easily viewed and analysed.I will use the enclosure graphs to look for patterns and trends.I can buoy withal use the line graphs to memorise whether I experient any unnatural or guerrilla results.