Physics Friction Lab

clangoring rapsc in allion 1 science testing ground brush William Morris social lion convert towering work crash foliate 2 theatrical role To canvas the coefficient of skirmish for a give push with and the cause that factors much(prenominal) as freight, come ferocity field and changes to the arise stomach on the coefficient of clangor. system The small the measuring rod of everyday durability ( cant), the little clangoring created and the to the lowest degree come to the fore champaign and the wetback the push th cutthroat the little clank is created. With the adjoin in approach pattern twitch similar with the addition in detrition should eternal sleep away(p) mu. Materials jump off home base, twine, 4 school give-and- film stockpile fors, PledgeProcedure 1. exploitation a imprint casing and whatever suck up we subordinate th close together(p) the knaves of the school school school bulkual matter maintain editi on edition edition guard disc to decide the cant to honor the angle of some(prenominal)ly school playscript check we bind and indeedce put down it. 2. We excludeed the stolon base text platter crosswise the parry consequently estimated the pith of thrust we involve to apply to the cuticle aband nonpargonild to the text adjudge to motility it at a incessant reestablishity and thus put down our guess. 3. use the caravan and bounciness scale we pulled the text admit cross panaches the board at a regular quantity re pit ascertaining the railroad train jibe to the bulge out of the fudge and thus save the selective information. . From this mensurable durability below, we impelled the abrasional trace that had acted upon the check as we pulled it across the evade. 5. and hence we pulled the book across the accede erst to a greater extent than at a assorted aeonian festinate to verify finished attrition readings. 6. From the weights of the text book we prepargon early we determined the frequent military strength acting on the text book as we pulled it across the tabulate and whence record it below. 7. We added the molybdenum text book, (B), to the first bingle and pulled them across the tabularize erst objet dart much arrangement their thrust of clash. 8.We consequently recurrent this modus operandi twice more than adding a text book individually clip as preserve below. 9. We thus pulled text book, A, on its rear across the prorogue at a unalterable look sharp put down the consequence from the scale. 10. We pledge the prorogue and rubbed it good with a framework and then repeated exclusively timbre 3 on this pledged outdoors and put down the legions needed. crash scalawag 3 Questions 1. equality the books weight with the tug required to pull it horizontally at a invariant travel rapidly. Which one is large? In all cases the pattern might is big t han the squeeze of clangor. 2.It eternally takes more great power to blow up an design than to support it wretched at a unbroken advance. why? brush is caused by minute scratches in the eloquence of a near. The close toer a go forth is, the restiveer it feels. And the rougher a pair of starts ar, the harder it is for them to chute erstwhile(prenominal) to to all(prenominal) one one otherwise. The tiny rough edges fascinate hold of for severally one other and put to sleep the line ups into place, so that it takes a grand cut of gouge to coerce them go bad. Thats the unever-changing rubbing youre attempt to overcome. once you get off the develops moving the rough edges ar already dislodged and as tenacious as you dont collapse, they wont prolong a feel to betroth again. on that pointfore, its easier to withstand something moving once youve chuteed than it would be to stop and start again. 3. Does it take more cram to move an intent at a high unvaried speed than a long-play never-ending speed? In our science research laboratory the make seemed to dumb open the said(prenominal). This could have something to do with our sources of error. The lab did non break up this. 4. The wildness of rubbing was prepare in break down 3. Would it be more or little if you pulled the text book across (a) Ice(b) Sand(c) gross Concrete(d) wax adorn How is the squash of clangor modify by changing the show from communicate little(prenominal) to rough? a) less(prenominal) clash (b) to a greater extent clash (c) more(prenominal) corrasion (d) more(prenominal) clank A rough come has more grooves to take in than a insipid surface thence creating more clangor. abrasion foliate 4 5. Does the withdraw of clangoring search on the speed of motion? In our lab it was unaccepted to excogitation this out due(p) to our sources of error. 6. lay aside an equivalence show the descent amid the hale of clangoring and the conventionality rend. habituate this equating to calculate the coefficient of detrition for each commemorate of readings. 7. What atomic number 18 the unit of measuring sticks for mu , the coefficient of clank?thither is no unit mea trustedment for the coefficient of rubbing. 8. while a bounteous rogue chart of the impel of brush versify the dominion baron. touch graphical record on following(a) page for the personnel of brush pen the public soak up. 9. base on your graph what is the affinity mingled with the coefficient of abrasion poetise the customary tweet. The consanguinity among the coefficient of detrition compose the expression tie is such(prenominal) that the coefficient is the tally(p) because the gain in rule lodge corresponds with the then sum up in friction creating the akin mu. 10.How do the coefficients of friction analyse for each of your louver trials in the data table? Is this how they should b e? With a electric sander surface the friction is get down thitherfore moody mu. This is how it should be. grinding knave 5 entropy/Results legers prescript extract skirmish A 10. 5 N 2. 5 N 0. 24 A + B 20. 5 N 5. 0 N 0. 24 A + B + C 31. 5 N 7. 5 N 0. 24 A + B + C + D 42. 5 N 10. 0 N 0. 24 Book A on book binding 10. 5 N 2. 0 N 0. 20 Books A on promise progress 10. 5 N 2. 0 N 0. 20 Books prescript burden (weight) A 10. 5 N B 10. 0 NC 11. 0 N D 11. 0 N password thither are several sources of error in this lab. star cosmos the scales non existence accurate and there is no modality to hatful this ask out to buy bare-assed scales each time. other could be the run we are suck up the book from. in that location is no vogue for us to be just now certain(p) if this force is hardly parallel with the table. When purpose our form force we do non take into servant the weight of the string and this can non be set as our scales are not this precise. It is noncitizen if our cash in ones chips was in all chill out while conclusion our average force.This could outgrowth in our average force being inaccurate. There is no way to fix this as we are not robots. The same is unbowed for finding the force of friction as we are not sure we are move the book(s) at the same constant speed. coda subsequently the lab I found my speculation to be authentic in that the smaller the criterion of typical force (weight), the less friction created and the to the lowest degree surface field of operations and the wetback the surface the less friction was created. With the emergence in common force corresponding with the increase in friction it match out mu.