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GCE MAY 2006 : A2 3B Experimental and Investigative Skills (Session 1) (Irish Medium)

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED General Certificate of Education 2006 Fisic Aonad Meas naithe A2 3B ag meas n Mod l 6: Scileanna Turgnamhacha agus Imscr daitheacha Seisi n Uimh. 1 [A2Y32] D M IRT 23 BEALTAINE 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. Tiontaigh go leathanach 3 le haghaidh Treorach agus Eolas breise. Don Mh nteoir/Feitheoir amh in Ceist 2 Ar tugadh ciorcad r amh-nasctha don iarrth ir n ar cuideodh leis an iarrth ir an ciorcad a nascadh? IS EA N hEA Don Scr daitheaoir amh in Uimhir Ceiste 1 2 3 Marc Ioml n A2Y3BS6 1638.08 Marcanna LEAThANACh B N A2Y3BS6 1638.08 2 [Turn over Treoir d Iarrth ir Freagair na ceisteanna uile agus an leabhr n seo in s id agat. N m r obair gharbh agus r omhaireachta a dh anamh sa leabhr n seo chomh maith. Mura n-iarrtar ort , n cuir s os ar an fhearas n ar n sanna imeachta turgnamhacha. Cuirfidh an Feitheoir in i l duit an t-ord inar ch ir duit na ceisteanna a fhreagairt. N or ch ir duit n os m n 28 n im ad a chaitheamh ar gach ceist. I gCeisteanna 1 agus 2, n m r duit deireadh a chur le h s id an fhearais i ndiaidh 26 n im ad sa d igh go bhf adfa a chur i dtreoir ar s don ch ad iarrth ir eile. Ag deireadh na tr imhse 28 n im ad d arfar leat dul ar aghaidh go dt an it at leagtha amach don ch ad cheist eile. Ag deireadh na Trialach tabharfar tr imhse 6 n im ad duit le do fhreagra ar cheist ar bith a chur i gcr och, ach n bheidh deis agat an fearas a s id le linn an ama seo. Eolas d Iarrth ir Is 70 an marc ioml n don ph ip ar seo. Meas n far caighde n na cumars ide scr ofa i gCeist 3. T 25 marc ag dul do Cheist 1 agus Cheist 2, agus t 20 marc ag dul do Cheist 3. L ir onn figi ir idir l ib n ar thaobh na l imhe deise de leathanaigh, na marcanna at ag dul do gach cuid de cheist. Cuireann Ceist 3 le meas n sionoptach na Sonra ochta. Sa cheist seo, beidh ort c naisc a dh anamh le r ims eile fisice agus iad a s id agus beidh ort do chuid eolais agus do thuiscint ar n os m n r imse amh in a s id. A2Y3BS6 1638.08 3 [Tiontaigh an leathanach 1 R amheolas Sa turgnamh seo fiosr idh t tonnta seasta ar shreang. Aidhmeanna Is iad aidhmeanna an turgnaimh n (a) patr in de thonnta seasta a fh il ar shreang faoi theannas, (b) do thonn sheasta dar l b amh in, gaol a bhun idir minic ocht na toinne a ghintear agus fad na sreinge faoi theannas. Fearas T an fearas in F or 1.1 curtha i dtreoir duit cheana f in. f isc n crogaill l ul g Ginead ir comhartha faobhar scine cuing chruach le maighn id faobhar scine f isc n crogaill sreang mais F or 1.1 Cuirtear teannas sa tsreang tr mhais a chrochadh as foirceann amh in den tsreang. Is iad dh mhaighn ad i gcuing chruach a shol thra onn r imse maighn adach ar dronuillinn leis an tsreang a bhfuil sruth ailt arnach dar minic ocht aitheanta iompar aici. F gann s seo go mb onn ascaluithe dar aimpliti id bheag dt irgeadh ag an tsreang. A2Y3BS6 1638.08 [Turn over N s imeachta T c imheast ir raon minic ochta agus c imheast ir aimpliti ide an ghinead ra r amhch irithe, agus n c ir iad a choigeart . Ar dt s, b odh na faobhair scine 500 mm ar shi l na ch ile agus b odh an c imheast ir minic ochta ar an ghinead ir ag tuairim is 40 Hz. M adaigh ar an mhinic ocht de r ir a ch ile go mb onn l b amh in le feice il ar an tsreang chreathach. Coigeartaigh an mhinic ocht go mb onn uas-aimpliti id sa l b. D an n ta den mhinic ocht f ag a dtarla onn an uas-aimpliti id seo, agus taifead an luach in T bla 1.1. Ba ch ir an luach a thaifeadadh go dt l on cu d fhigi iri bun sacha. Cuir aonaid chu isteach i gceannteideal dara col n an t bla. Is f idir go mbeidh an tr col n de dh th ar ball. Laghdaigh ar an fhad l idir na faobhair scine go dt 450 mm. Bog an chuing leis na maighn id go mb onn s leath bealaigh idir na faobhair scine ar s. Coigeartaigh an mhinic ocht go bhfaightear uas-aimpliti id ar s. D an n ta den mhinic ocht f ag a dtarla onn an uas-aimpliti id agus taifead in T bla 1.1 . D an an n s imeachta seo ar s d fhaid l dar 400 mm, 350 mm agus 300 mm. Scr daitheoir Amh in Marcanna Athmharc Tortha (a) T bla 1.1 fad l/mm 500 450 400 350 minic ocht f/ 300 [7] A2Y3BS6 1638.08 [Tiontaigh an leathanach (b) D an meastach n ar an iginnteacht thurgnamhach sa luach de f a chomhfhreagra onn do fhad creathach de 450 mm. M nigh an d igh a bhfaigheann t an meastach n seo. iginnteacht = _____________________________________________ M ni : ___________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [3] Teoiric An gaol idir an mhinic ocht f den tonn a gineadh agus an fad l, is ceann acu seo a leanas : f = A l Cothrom id 1.1 f = A l Cothrom id 1.2 A f = l nuair is tairiseach dearfach A. Cothrom id 1.3 Anail s (a) na tortha agat, socraigh c acu de na cothrom id 1.1, 1.2 n 1.3 is fearr a oireann do na sonra turgnamhacha. Cuir do rogha in i l tr tic a chur sa bhosca taobh leis an chothrom id. [1] (b) T ort l neghraf cu a tharraingt lena fh il amach cad an luach at ar thairiseach A sa chothrom id at roghnaithe agat. (i) Luaigh na cainn ochta at le breacadh ar gach ais den ghraf. Ais cheartingearach: _____________________________________ Ais chothrom nach: __________________________________ [1] (ii) Le go bhf adfa an l neghraf seo a bhreacadh, is f idir go mbeidh ort cainn ocht bhreise a fh il do thortha . M bh onn, cuir lip ad cu isteach i dtr col n an T bla 1.1, agus cuir isteach na luachanna a r omhtar do thortha . [2] (iii) Ar F or 1.2 thall, lip adaigh aiseanna eangach an ghraif agus roghnaigh sc la cu . Breac na point agus tarraing an l ne dh reach is fearr tr othu. [5] A2Y3BS6 1638.08 6 Scr daitheoir Amh in Marcanna Athmharc F or 1.2 A2Y3BS6 1638.08 7 [Tiontaigh an leathanach (iv) do ghraf, faigh an luach at ag an tairiseach A. Taispe in go soil ir cad mar a fhaightear an luach. Scr obh an luach, mar aon le haonad cu , anseo th os. (v) do ghraf, n tr r omhaireachta a dh anamh, faigh amach cad fad na sreinge a bheadh de dh th chun patr n l b amh in dar minic ocht 60 Hz a th irgeadh. A2Y3BS6 1638.08 A = __________________ Aonad: _________________ [4] Fad = __________________ mm [2] Scr daitheoir Amh in Marcanna Athmharc LEAThANACh B N (Leanann na ceisteanna ar an ch ad leathanach eile) A2Y3BS6 1638.08 [Tiontaigh an leathanach 2 R amheolas Aidhmeanna Is iad aidhmeanna an turgnaimh n (a) ciorcad a chur i dtreoir lena s id chun friota ocht sreinge a fh il, (b) an f.l.g (e.m.f) d fhoinse cumhachta a thomhas, (c) chun luachanna srutha a fh il nuair a bh onn faid dhifri la de shreang friota ochta sa chiorcad, (d) chun an trastomhas sa tsreang friota ochta a thomhas, (e) na luachanna seo, mar aon leis an achar sa trasghearradh, a s id chun friotachas na sreinge a fh il. Fearas Tugtar iad seo a leanas duit, aimpmh adar,voltmh adar, lasc, tomhsaire scri micrim adair, sreang friota ochta (at ceangailte de mh adarshlat cheana f in), foinse cumhachta, sreang ch naisc agus f isc n crogaill. N s imeachta (a) Cuir an ciorcad a thaispe ntar in F or 2.1 i dtreoir. Foinse cumhachta Lasc A V sreang friota ochta L f isc n crogaill m adarshlat f isc n crogaill F or 2.1 Scr daitheoir Amh in Agus na seol in le f isc n crogaill ar foirceann amh in in s id, ceangail Marcanna Athmharc f isc n amh in den tsreang friota ochta ag foirceann nialas na m adarshlaite. N ceangail an dara f isc n den tsreang friota ochta go f ill. [2] Mura dtig leat an ciorcad seo a chur i dtreoir, iarr cuidi ar an Fheitheoir. Bainfear 2 mharc d ot. A2Y3BS6 1638.08 10 [Turn over (b) Agus an tomhsaire scri micrim adair in s id, faigh go beacht an trastomhas at sa tsreang friota ochta agus taifead in T bla 2.1 . T fad gearr den tsreang ch anna ar f il duit chun seo a dh anamh. (c) Druid an lasc agus s id an voltmh adar chun an f.l.g E den fhoinse cumhachta a thomhas. Taifead an luach de E in T bla 2.1. (d) Oscail an lasc agus ceangail an dara f isc n crogaill anois sa d igh gurb 1.00 m an fad L. Druid an lasc. Taifead an luach den sruth I in T bla 2.2. N coinnigh greim ar an fh isc n seo agus an l amh ghlacadh, mar is f idir go mbeidh iomlaoid ann. D an an n s imeachta seo ar s d fhaid L de 0.90 m, 0.80 m, 0.70 m, 0.60 m agus 0.50 m. Scr daitheoir Amh in Marcanna Athmharc T an tr col n in T bla 2.2 le h s id ar ball. Tortha T bla 2.1 Trastomhas sreang friota ochta/mm F.l.g. E/ V [3] T bla 2.2 fad L/m 1.00 0.90 0.80 0.70 0.60 sruth I/A 0.50 [6] A2Y3BS6 1638.08 11 [Tiontaigh an leathanach Teoiric T gaol idir an sruth I agus fad L na sreinge friota ochta at in s id tr d an chothrom id seo a leanas: 1 = BL + C I Scr daitheoir Amh in Marcanna nuair is tairisigh dhearfacha iad B agus C. Anail s T ort l neghraf a tharraingt chun an luach at ag an tairiseach B a fh il. (a) Le go bhf adfa an l neghraf seo a bhreacadh, beidh ort cainn ocht bhreise a fh il do thortha . Cuir lip ad agus aonad cu isteach i gceannteideal an tr col n in T bla 2.2, agus cuir isteach na luachanna a fuair t do thortha . [2] (b) Ar F or 2.2 thall, lip adaigh aiseanna eangach an ghraif agus roghnaigh sc la cu . Breac na point agus tarraing an l ne dh reach is fearr tr othu. [5] (c) do ghraf, faigh an luach at ag an tairiseach B. Taispe in go soil ir cad mar a fuair t an luach. Scr obh an luach, mar aon le haonad cu , anseo th os. B = __________________ Aonad: _________________ _ A2Y3BS6 1638.08 [4] 12 Athmharc F or 2.2 A2Y3BS6 1638.08 13 [Tiontaigh an leathanach r (d) F adtar a thaispe int go bhfuil B = EA nuair is A an t-achar at i dtrasghearradh na sreinge friota ochta, nuair is E an f.l.g. den fhoinse cumhachta agus nuair is r friotachas na sreinge. Agus do luachanna de B, E agus de thrastomhas na sreinge in s id agat, faigh friotachas na sreinge, mar aon lena aonad. Friotachas = __________________ Aonad: A2Y3BS6 1638.08 __________________ [3] 1 Scr daitheoir Amh in Marcanna Athmharc T thar ag s il go bhfreagr idh t an cheist seo 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 3 Ceist phlean la agus dearaidh R amheolas Fiosr dh anamh ar chuid de na hair onna at ag friot ir solas-sple ch (LDR) agus ar na d igheanna ar f idir a s id, is bhar don cheist seo. T friota ocht ag LDR a athra onn go suntasach le d ine soilsithe. I gc s LDR irithe, is 250 kW an fhriota ocht sa dorchadas agus is 6 kW an fhriota ocht i solas lae. Ceisteanna (a) T ort fiosr a dh anamh ar c acu a chomhl onann an LDR Dl Ohm sa dorchadas agus i solas lae ansin n nach gcomhl onann. Caithfear an fhriota ocht a fh il tr mhodh voltmh adair agus aimpmh adair a s id. T aschur seasta de 20 V d.c. ag an sol thar cumhachta. (i) Comhl naigh an l ar id ciorcaid in F or 3.1 tr roinnteoir poit insil, a fh gfaidh go dtig leat an voltas thar an LDR a athr 0 go 20 V, a chur isteach ann. Taispe in an it a gceangl fa an t-aimpmh adar agus an voltmh adar. 20 V d.c. LDR [3] F or 3.1 (ii) cr obh cuntas gearr ar an d igh a nd anf an turgnamh seo. S ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ___________________________________________________ [4] A2Y3BS6 1638.08 1 [Tiontaigh an leathanach (b) (i) Faigh an sruth sa dorchadas nuair is 20.0 V an difr ocht poit insil thar an LDR. (ii) Nuair a nochtar an LDR do sholas lae b onn m ad suntasach ar an sruth. Faigh an laghd i ndifr ocht poit insil n roinnteoir poit insil at de dh th le go dtabharfar an sruth c anna i solas lae is a tugadh don sruth sa dorchadas in (b)(i). (c) T friota ocht an LDR ag brath ar dh ine solais. Ar f il duit t graf calabraithe a cheangla onn an fhriota ocht le d ine solais, mar a thaispe ntar in F or 3.2. Sruth sa dorchadas = ________ A [1] Laghd = ________ V [2] d ine solais friota ocht A2Y3BS6 1638.08 F or 3.2 16 Scr daitheoir Amh in Marcanna Athmharc B onn solas ions agus ag dul tr phl ta gloine (sleamhn in micreasc ip, mar shampla). Tuigtear theoiric go n-athra onn an d ine solais L le l on n na bpl ta gloine sa chonair solais de r ir an ghaoil L = L0e mn nuair is tairisigh iad L0 agus m. (i) Cad an t-ainm at ar an chine l seo de ghaol? (ii) Dear turgnamh a fh gfaidh go mbeidh t balta m a fh il tr d iad seo a leanas a s id, LDR, foinse bheag solais, roinnt pl ta gloine agus gaireas a thomhaiseann friota ocht go d reach. ______________________ Scr daitheoir Amh in Marcanna Athmharc [1] Luaigh an trealamh eile a bheadh de dh th, cad a bheadh a athr agus a thomhas agat, agus an d igh a nd anf na tortha a phr ise il. B odh l ar id den ch iri ch n ann. Luaigh chomh maith r amhch ram dearaidh a thabharf lena chinnti go mbeadh do chuid tortha chomh beacht agus is f idir. _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ ___________________________________________________ [8] Caighde n na cumars ide scr ofa A2Y3BS6 1638.08 [1] 1 7 17 [Turn over [Tiontaigh an leathanach SEO DEIREADH AN SCR DPH IP IR A2Y3BS6 1638.08 1 [Turn over

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Additional Info : Gce Physics May 2006 Assessment Unit A2 3B, Module 6: Experimental and Investigative Skills (Session 1) (Irish Medium)
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

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