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GCE JAN 2008 : A2 1 Energy, Oscillations and Fields (Irish Medium)

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED General Certificate of Education January 2008 Fisic Aonad Meas naithe A2 1 ag meas n Mod l 4: Fuinneamh, Ascaluithe agus R ims [A2Y11] D HAOINE 11 EAN IR, IARN IN AM 1 uair 30 n im ad. TREOIR D IARRTH IR Scr obh d Uimhir L rionaid agus d Uimhir Iarrth ra sna sp sanna chuige sin ag barr an leathanaigh seo. Freagair gach ceann de na s cheist. Scr obh do fhreagra sna sp sanna chuige sin sa cheistph ip ar seo. EOLAS D IARRTH IR Is 90 an marc ioml n don ph ip ar seo. Meas n far caighde n na cumars ide scr ofa i gceist 3(b). L ir onn figi ir idir l ib n ar thaobh na l imhe deise de leathanaigh na marcanna at ag dul do gach ceist n do gach cuid de cheist. Tarraing tear d aird ar an Bhileog Sonra agus Foirml at taobh istigh den cheistph ip ar seo. Tig leat ireamh n leictreonach a s id. Cuireann Ceist 6 le riachtanas mheas n sionoptach na Sonra ochta. Moltar duit tuairim is 55 n im ad a chaitheamh ar cheisteanna 1 5, agus tuairim is 35 n im ad ar cheist 6. A2Y1W8 3962.03 Don Scr daitheoir amh in Uimhir Ceiste 1 2 3 4 5 6 Marc Ioml n Marcanna M bh onn luachanna na dtairiseach fisiceach de dh th ort chun ceist ar bith ar an ph ip ar seo a fhreagairt, t siad le f il ar an Bhileog Sonra agus Foirml . Freagair gach ceann de na s cheist 1 Bh an fearas in F or 1.1 in s id ag mac l inn le saintoilleadh teirmeach bainne a fh il. A Teirmim adar V Sol thar Cumhachta Corraitheoir Cl r insli ch in Coime d n miotail inmhe nach Corna t imh Bainne Coime d n miotail seachtrach bhar Insli ch in F or 1.1 Fuair an mac l inn na tortha seo th os thar thr imhse 5.00 n im ad faoi choinne sampla de bhainne dar mais 0.126 kg. L on an sampla bainne seo an coime d n inmhe nach go hioml n. Dhruid an mac l inn an lasc agus chuir s an stopuairead ir ar si l go comhuaineach agus thaifead s an teocht thosaithe, an difr ocht poit insil agus an sruth. D oscail an mac l inn an lasc i ndiaidh 5.00 n im ad agus thaifead s an teocht chr che, ach n dhearna s rud ar bith eile sa tr imhse seo. Difr ocht poit insil Sruth Teocht thosaithe Teocht chr che A2Y1W8 3962.03 12.4 V 3.74 A 19.0 C 43.0 C 2 [Turn over (a) s id na tortha seo le saintoilleadh teirmeach bainne a r omh. Luaigh an t-aonad cu . Scr daitheoir Amh in Marcanna Athmharc Saintoilleadh teirmeach bainne = ________________ [4] Aonad = ________________ [1] (b) Amharc go g ar ar an fhearas in F or 1.1 agus cuir s os ar theicn c thurgnamhach amh in is c ir a s id sa turgnamh seo le toradh n os cruinne a fh il. M nigh an f th a bhfuil g leis an teicn c seo. Cur s os _________________________________________________ ______________________________________________________ [1] M ni ___________________________________________________ _________________________________________________________ ______________________________________________________ [2] A2Y1W8 3962.03 3 [Tiontaigh an leathanach (c) Glac leis gur s id an mac l inn an teicn c chu sa turgnamh seo. Luaigh an phr omhfhoinse sa turgnamh seo a thabharfadh toradh m chruinn go f ill agus m nigh an d igh a gcuirf san ireamh sa r omhaireacht . Scr daitheoir Amh in Marcanna Athmharc Foinse mh chruinnis ________________________________________ ______________________________________________________ [1] San ireamh _______________________________________________ _________________________________________________________ ______________________________________________________ [2] A2Y1W8 3962.03 4 [Turn over LEATHANACH B N (Leanann na ceisteanna ar an ch ad leathanach eile) A2Y1W8 3962.03 5 [Tiontaigh an leathanach 2 An ocsaigin a bh onn in s id ag othair in ospid il agus ag daoine irithe sa teach, b onn s de ghn th i sorc ir cruach molaibd inim dar br 13.7 MPa ag 15.0 C ar an taobh istigh. Scr daitheoir Amh in Marcanna Athmharc (a) (i) R omh an uasteocht ar f idir na sorc ir a nochtadh di m s f idir leo br chomh hard le 25.0 MPa a sheasamh. Scr obh do fhreagra ina C. Uasteocht = ________________ C [4] (ii) R omh l on na m l ocsaigine ag 13.7 MPa agus teocht 15.0 C a bheidh i sorc ir dar toirt 0.046 m3. L on na m l = ________________ [3] A2Y1W8 3962.03 6 [Turn over (b) R omh luas fhr amh mhe n na gcearn g a bh onn faoi na m il n ocsaigine ag 15.0 C. Is 2.66 10 26 kg mais m il n ocsaigine. Scr daitheoir Amh in Marcanna Athmharc Luas fhr amh mhe n na gcearn g = ________________m s 1 [3] (c) Luaigh dh shaintr ith den riocht a dtugtar dearbhnialas teochta air. Saintr ith 1 ______________________________________________ _________________________________________________________ Saintr ith 2 ______________________________________________ ______________________________________________________ [2] A2Y1W8 3962.03 7 [Tiontaigh an leathanach 3 I gcuid (b) den cheist seo ba ch ir duit do fhreagra a thabhairt i bpr s lean nach san it ar cu sin. Meas n far th ar chaighde n na cumars ide scr ofa. Scr daitheoir Amh in Marcanna Athmharc T an fad a rachaidh liathr id ghailf ag brath ar luas cheann an mhaide nuair a bhuaileann s an liathr id. Is f idir glacadh leis gur ciorclach an chonair a dh anann ceann an mhaide, an pl na luaisce. (a) (i) Luascann galfaire an tiom na (an maide is faide). Tomhaistear an treoluas ag an phointe imbhuailte mar 36.0 m s 1. Is 1.60 m ga ifeacht il na luaisce. R omh treoluas uilleach na luaisce ag an phointe imbhuailte. Treoluas uilleach = ________________ rad s 1 [2] (ii) Luascann an galfaire iarann 9 anois. Is maide n os giorra dar ga ifeacht il 1.35 m. Fanann treoluas uilleach na luaisce mar an gc anna leis an cheann in (a)(i). R omh an luasgh ar l raimsitheach ag an phointe imbhuailte. Luasgh ar = ________________ m s 2 [3] A2Y1W8 3962.03 8 [Turn over (b) T liathr id ar fhoirceann sreang in rothl i gciorcal ceartingearach. Cuir s os go c il ocht il ar mh id an fh rsa l raimsithigh agus an teannais T sa sreang n ag su mh A, B, C agus D de r ir mar a leanann an liathr id an chonair chiorclach tuathal le treoluas uilleach tairiseach do luasc amh in. Scr obh do chur s os i bpr s lean nach. Scr daitheoir Amh in Marcanna Athmharc A B T D C _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [3] Caighde n na cumars ide scr ofa A2Y1W8 3962.03 [2] 9 [Tiontaigh an leathanach 4 (a) Taispe nann F or 4.1 fearas is f idir a s id le hascaluithe a imscr d . Is a dh anann an ginead ir comhartha n minic ocht na loine ascala a athr . Tugann an loine ar an ch ras mais linge in bheith ag crith agus is f idir d l ithri ch n na maise a fh il n phointeoir a bh onn ag bogadh in adan an sc la. Linge n Mais Loine Ascalach Sc la Ginead ir comhartha F or 4.1 Aimpliti id 0.6 0.8 1.0 1.2 1.4 C imheas na minic ochta n d rtha/Minic ocht tiom na F or 4.2 Scr daitheoir Amh in Marcanna Athmharc (i) Ar F or 4.2 sceitse il graf d aimpliti id na maise mar at l iri ag an phointeoir ar an sc la (y-ais) ar an toradh a fhaightear tr d an mhinic ocht n d rtha d ascal ch ras an mhais linge in a roinnt ar mhinic ocht tiom na na loine (x-ais). [2] A2Y1W8 3962.03 10 [Turn over (ii) Cad an t-ainm a thugtar le cur s os ar an ch s ag a dtarla onn uas-aimpliti id? Scr daitheoir Amh in Marcanna Athmharc ___________________________________________________ [1] D antar an turgnamh ar s anois agus leath n ti bh cairtph ip ir mar mhaolaire slaodach ann. Is diomaibhseach an mhais at sa mhaolaire slaodach i gcompar id leis an bhunmhais. Taispe ntar an c s nua seo in F or 4.3. Cairtph ip ar F or 4.3 (iii) Ar F or 4.2 sceitse il graf eile lena thaispe int c n ifeacht a bh onn ag an chairtph ip ar ar ascal ch ras an mhais linge in. Lip adaigh an graf seo B. Bainfear marc ar shi l mura gcuirtear lip ad ar an ghraf seo. [2] (iv) Cuirtear an ginead ir comhartha as agus an c ras in F or 4.3 ag ascal . Ar na haiseanna in F or 4.4 sceitse il an graf lena thaispe int cad mar a bh onn aimpliti id an ch rais mhaolaithe ag athr le ham i ndiaidh don ghinead ir comhartha bheith as. S neann an ais don am thar thr imhse fhada. [2] Aimpliti id Am 0 F or 4.4 A2Y1W8 3962.03 11 [Tiontaigh an leathanach (b) Is sampla d ascal f rs ilte an c ras in (a). Luaigh sampla eile d ascal f rs ilte. Ba ch ir duit a shainaithint c d at fh rs il le bheith ag ascal agus cad at ag tiom int (ag f rs il) an ascalaithe. Scr daitheoir Amh in Marcanna Athmharc Sampla _________________________________________________ An cuid at thiom int le bheith ag ascal _____________________ _________________________________________________________ An cuid a thiom ineann ___________________________________ _______________________________________________________[2] 5 s ideann fisicithe coincheap r ims le hiompar irithe a mh ni . (a) (i) Cad a chialla onn an t arma r imse? ______________________________________________________ ___________________________________________________ [1] (ii) Comhl naigh T bla 5.1 ina nd antar compar id idir r imse imtharraingteach agus r imse leictreach. T bla 5.1 R imse Imtharraingteach Cainn ocht fhisiceach is c is leis F rsa R imse Leictreach mais aomthach N C 1 Aonad neart r imse [3] A2Y1W8 3962.03 12 [Turn over (b) Istigh i n icl as litiam t 3 phr t n ar f idir breathn orthu mar ch inn de thriant n comhshleasach dar fad sleasa 2.4 10 15 m, mar a thaispe ntar in F or 5.1. Scr daitheoir Amh in Marcanna Athmharc P 60 R Q 2.4 10 15 m F or 5.1 (i) R omh m id an fh rsa leictrigh at fheidhmi ag Q ar P. F rsa = ______________ N [2] (ii) (1) Ar F or 5.1 tarraing saighead lena thaispe int c n treo a bhfuil an f rsa leictreach comhthoraidh ag feidhmi ar phr t n P i ngeall ar phr t in Q agus R. [1] (2) R omh m id an fh rsa leictrigh ioml n at ag feidhmi ar phr t n P. F rsa = ______________ N [3] A2Y1W8 3962.03 13 [Tiontaigh an leathanach (c) (i) L ir onn F or 5.2 lucht pointe. Ar na haiseanna in F or 5.3 sceitse il an graf de mh id neart r imse ar fhad n fhoinse pointe. Scr daitheoir Amh in Neart r imse leictr Marcanna Athmharc + 0 0 F or 5.2 Fad n fhoinse pointe F or 5.3 + Neart r imse leictr (ii) Taispe nann F or 5.4 pl ta comhthreomhara a bhfuil difr ocht poit insil tairiseach coinne il trasna orthu. Ar F or 5.5 sceitse il an graf de mh id neart r imse ar fhad n phl ta dhi ltach. 0 0 F or 5.4 Fad n phl ta di ltach F or 5.5 [3] A2Y1W8 3962.03 14 [Turn over LEATHANACH B N (Leanann na ceisteanna ar an ch ad leathanach eile) A2Y1W8 3962.03 15 [Tiontaigh an leathanach Ceist ar anail s sonra Cuireann an cheist seo le riachtanais mheas n sionoptach na Sonra ochta. Sa fhreagra agat, t thar ag s il go mbainfidh t s id as smaointe agus scileanna na fisice sna c sanna ar leith a gcuirtear s os orthu. Moltar duit tuairim is 35 n im ad a chaitheamh ar an cheist seo. 6 Friot ir Solas-sple cha R amhr Is gl as leathsheolt ra Friot ir Solas-sple ch (FSS), a mb onn a fhriota ocht ag athr de r ir mar a bh onn an solas a thiteann air ag athr . An solas a thagann isteach tr d an fhuinneog, idirghn omha onn s leis an chorna ogair bhair. T an corna c nasctha ag gach foirceann taobh istigh de chiorcad. T dh radharc de FSS in F or 6.1. Radharc n taobh Radharc n taobh thuas Fuinneog chiorclach Teirmin il ch naisc 12 mm F or 6.1 Is le Cothrom id 6.1 anseo th os a thugtar comhathr na friota ochta de FSS le soilsi . R = R0E n an it wh whe whe A2Y1W8 Cothrom id 6.1 arb R an fhriota ocht, a thomhaistear in , arb E an soilsi , a thomhaistear in aonad darb ainm lucsa, (n ltear ag s il go mbeidh aon eolas agat ar shoilsi n ar an aonad lucsa), arb iad R0 agus n tairisigh le haghaidh FSS ar leith. 3962.03 16 [Turn over (a) Saintr ithe an FSS bhf il In T bla 6.1 anseo th os tugtar luachanna a tomhaiseadh do fhriota ocht R an FSS ag comhfhreagairt don soilsi E. T bla 6.1 R/ 2.877 10 5 2.051 10 4 1.533 10 3 4.513 10 2 9.327 10 1 1.930 10 1 E/lucsa 1.0 10 1 4.0 4.9 10 2 98 3.9 10 3 3.1 10 4 Scr daitheoir Amh in Marcanna Athmharc (i) Luaigh an l on d fhigi ir bun sacha a tugadh do na luachanna R agus E. Figi ir bun sacha do R = _____________________ Figi ir bun sacha do E = _____________________ [2] A2Y1W8 3962.03 17 [Tiontaigh an leathanach Le graf l neach a fh il caithfear Cothrom id 6.1 a athr tr logartaim a s id. Tugann Cothrom id 6.2 an chothrom id log seo. log10 R = log10 R0 nlog10E Scr daitheoir Amh in Marcanna Athmharc Cothrom id 6.2 (ii) Comhl naigh T bla 6.2 tr na luachanna do log10 (R/ ) ar an y-ais agus do log10 (E/lucsa) ar an x-ais a fh il. [4] T bla 6.2 2.877 10 5 2.051 10 4 1.533 10 3 4.513 10 2 9.327 10 1 1.930 10 1 R/ E/lucsa 0.10 4.0 98 490 3900 31 000 log10 R/ log10 E/lucsa Scr daitheoir Amh in Marcanna Athmharc (iii) Ar an eangach graif do F or 6.2, roghnaigh sc la do na haiseanna, lip adaigh na haiseanna, agus breac log10 (R/ ) ar log10 (E/lucsa). [5] (iv) s id do ghraf le luach a fh il do n. n = _______________________ [3] (v) do ghraf, n tr r omhaireacht gharbh a dh anamh, faigh luach don soilsi nuair is 50 an tomhas ar an fhriot ir FSS. E = _______________________ lucsa [3] A2Y1W8 3962.03 18 [Turn over F or 6.2 A2Y1W8 3962.03 19 [Tiontaigh an leathanach (b) T rada ocht leictreamaighn adach dar minic ocht 540 1012 Hz ast ag foinse solais. Leatar an rada ocht go cothrom thar dhromchla leathsf ir mar a thaispe ntar in F or 6.3. Cuirtear an FSS 20 cm ar shi l n fhoinse. Is 4.1 W cumhacht na rada ochta at ionsaitheach ar an FSS. Scr daitheoir Amh in Marcanna Athmharc 20 cm Foinse solais pointe Brathad ir FSS, trastomhas 12 mm leathsf ar F or 6.3 (i) R omh cumhacht na foinse solais. N ta 1 Is 12 mm trastomhas an FSS agus t s 20 cm ar shi l n fhoinse solais. N ta 2 Is 2 r2 achar dromchla leathsf ir. Cumhacht na foinse solais = _______________________ mW [4] (ii) R omh tonnfhad na rada ochta monacr mata . Tonnfhad = _______________________ nm [3] A2Y1W8 3962.03 20 [Turn over (iii) R omh an fuinneamh at i bhf t n den rada ocht seo. Scr daitheoir Amh in Marcanna Athmharc Fuinneamh f t in = _______________________ J [3] (iv) R omh l on na bhf t n at ionsaitheach gach soicind ar an FSS. L on na bhf t n = _______________________ [3] A2Y1W8 3962.03 21 [Tiontaigh an leathanach (c) (i) s idtear an FSS i gcuid (a) sa chiorcad in F or 6.4. R omh friota ocht an FSS sa chiorcad seo. Scr daitheoir Amh in Marcanna Athmharc R = 2.2 k 3.2 V FSS Vamach = 0.38 V F or 6.4 Friota ocht = _______________________ k [4] A2Y1W8 3962.03 22 [Turn over (ii) Is at in F or 6.5 n cuar calabraithe de fhriota ocht FSS ar shoilsi . 3000 2500 Friota ocht/ 2000 1500 1000 500 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 Soilsi /lucsa F or 6.5 Scr daitheoir Amh in Marcanna Athmharc s id F or 6.5 leis an soilsi at ionsaitheach ar an FSS sa chiorcad in F or 6.4 a fh il. Soilsi = _______________________ lucsa [1] A2Y1W8 3962.03 23 [Tiontaigh an leathanach S 9/07 302-071-1 [Turn over

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Additional Info : Gce Physics January 2008 Assessment Unit A2 1, Module 4: Energy, Oscillations and Fields (Irish Medium)
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