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ww ww SMK SG LONG, CHERAS F- XC h a n g e Vi e w F- XC h a n g e Vi e w w .d o c u - tr a c k .c w .d o c u - tr a c k .c SEMINAR FIZIK SPM 2012 PENCERAMAH THONG KUM SOON SEK MEN TEKNIK SEPANG ew ew twa d o c r ustoat w a ce

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F- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cw .d oc u -tr a c k.cSEMINARFIZIK SPM2012PENCERAMAH THONG KUM SOONSEK MEN TEKNIKSEPANGew ewtwado crustoatw a cetw ado c ru s to a tw a c eSMK SG LONG, CHERASww wwTipsforPaper3No1andNo21. Identity the !"i!#$e %"&' the te(t !nd di!)"!'.*!+ M!ni,-$!ted !"i!#$e*#+ Re.,&ndin) !"i!#$e*/+ Fi(ed !"i!#$e */!n #e 'e!.-"ed+000NOT TYPE OF SUBSTANCE*d+ O#.e"e the di!)"!' 'e!.-"e'ent*e+ Identity the !$-e in t!#$e*%+ T!#-$!te d!t! 1ith .y'#&$ !nd -nit*)+ P$!n y&-" )"!,h *-nit !nd .y'#&$+*h+ 2ete"'ine the "e$!ti&n.hi, %"&' the )"!,h2. Re!d the 3-e.ti&n CAREFULL4*!+ E(t"!,&$!te the )"!,h !nd 1"ite the !$-e ne(t t& it*#+ P$&t #i))e.t t"i!n)$e !nd )et /$&.e.t !$-e 1ith -nit*/+ S-#.tit-te the !$-e /&""e/t$y 1ith 2 de/i'!$ ,$!/e.*d+ P$!/e ,"e/!-ti&nO#.e"e the "e!din) ,e",endi/-$!" t& the eye. t& ,"eent ,!"!$$!(e""&".O5 the /i"/-it 1hen 'e!.-"e'ent i. n&t t!6en t& ,"eent he!tin) &%1i"e. !nd /!-.e .y.te'!ti/ e""&".Re,e!t the e(,e"i'ent %&" 7 ti'e. !nd dete"'ine the !e"!)e t&,"eent .y.te'!ti/ e""&"3. TipsPaper3no3and4.*!+ P$!nnin) e(,e"i'ent i. the 8EST t& d& !nd EAS4 t& ./&"e #-t it i. !$.& e!.yt& di5e" %"&' the '!in ,&int.*#+ Identi%y!"i!#$e. %"&'the 3-e.ti&n. %"&'the .t!te'ent,CIRCLE UP the!"i!#$e. in&$e !nd APPARATUS GI9EN in .t!te'ent.*/+ Thin6 1h!t :::: e(,e"i'ent i. -.in) )ien !,,!"!t-. !. ! HINTS. P$!n !nd.6et/h the di!)"!' &% e(,e"i'ent .te, -,.*d+ ;"ite in%e"en/e, hy,&the.i. !nd !i' FOLLO; FORMAT )ien.ew ewww wwtwado crustoatw a cetw ado c ru s to a tw a c eUnderlinethearia!lesof"#and$#fro%thedia&ra%.Usethearia!lestos'!stit'tethefor%atofPlannin&E(peri%ent.Pro)ed're1. St!te the initi!$ 'e!.-"e'ent &% M9.2. St!te the 1!y. &% 'e!.-"e'ent &% R9 1ith !,,!"!t-. !nd %&$$&1 1ith %&"'-$! *i%ne/e..!"y+7. Re,e!t the e(,e"i'ent 1ith < di5e"ent M9 !$-e.. !1,!2,!7 !nd ! - T-#e, th"i.t$e %-nne$+#. T& ine.ti)!te the "e$!ti&n.hi, #et1een the ,"e..-"e !nd the te',e"!t-"e * Press're la*+s, Bo'rdon&a'&e and ther%o%eter+/. T& ine.ti)!te the "e$!ti&n.hi, #et1een the .ine &% in/ident !n)$e ,i !nd the .ine &% "e%"!/ted !n)$e, rew ewtwado crustoatw a cetw ado c ru s to a tw a c e=-e.ti&n. d&nAt .t!te the %&"'-$! &% the de@ne 1&"d0 ;"ite the de@niti&n in .t!te'ent %"&' the %&"'-$!2. C&',!"i.&n 3-e.ti&n. > '-.t -.e #!/6 the .!'e di!)"!' t& /&',!"e in ,hy.i/. te"'/&',!"i.&n. =-&te #!/6 the 2i!)"!' n-'#e", !nd /&',!"e 1ith .t!te'ent !//&"din)t& the '!"6. ,"&i.i&n.7. E(,$!n!ti&n &n !.,e/t. )ien.M-.t 3-&te #!/6 the !.,e/t )ien, d&nAt die"t the .t!te'ent #y e(,$!nin) &the".t!te'ent &% y&-" 1!y..E(,$!in the /h!"!/te"i.ti/. &% the .t!te'ent )ien %&$$&1 * 1 '!"6.+ 1ith e(,$!n!ti&n &%the #ene@t !nd !d!nt!)e. &% the /h!"!/te"i.ti/. .t!ted. *1 '!"6.+M&"e e(,$!n!ti&n !"e #ette", -.-!$$y T;O !"e '&"e th!n en&-)h.PartC1. U.-!$$y /!$/-$!ti&n, !nd de@niti&n.P$e!.e .t!te %&"'-$!, 1&"6in) !nd @n!$ "e.-$t. 1ith 'ini'-' 2 de/i'!$ ,$!/e. !nd/&""e/t -nit..2. E(,$!n!ti&n &% ,hy.i/. /&n/e,t., -.-!$$y te.t y&-" -nde".t!ndin) &% ,hy.i/. %&"'-$!"e$!ti&n.hi,..7. St-dy .,e/i@/!ti&n &n the !.,e/t. )ien !nd e!$-!te the ,i/t-"e. )ien t& e(t"!/t the!n.1e" %"&' the in%&"'!ti&n )ien. =-&te the in%&"'!ti&n &% ,&int &% !n.1e" !nde$!#&"!te the .t!te'ent &% /h!"!/te"i/. 1ith ,hy.i/. /&n/e,t e(,$!n!ti&n.>>>>>>>>>>...................................................................?1mar2@ A ?1 markah@(ii)Mar2 on Diagram -.1 the direction of the t3o forces acting on theh7drometer.$andakan dengan anak panah arah daya%daya yang bertindak ke atas hidrometer padaRajah -.1.?1mar2@ A ?1 markah4531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MRCONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 944531/2w .d oc u -tr a c k.c(b) $he h7drometer is remo+ed from 3ater1 dried and then p'aced in oi'.Hidrometer itu dikeluarkan dari air" dikeringkan dan dimasukkan ke dalam minyak.(i) Predict the 'ength of the h7drometer that is submerged in oi'1 comparedto the 'ength in 3ater.Ramalkan panjang hidrometer yang tenggelam di dalam minyak" berbanding panjangdi dalam air.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>?1mark@ A ?1 markah@(ii) !i+e a reason for 7our ans3er in 3(b)(i).#yatakan satu alasan untuk jawapan anda dalam 3(b)(i).....................................................................................................................?1mar2@ A ?1 markah@(&)ForExaminersuse3(b)(i)13(b)(ii)1Diagram -.2Rajah -.2Diagram -.2 sho3s an obCect 3hich has a 3eight of 0.2D " fu''7 immersed in3ater. Its apparent 3eight is 0.22 ".(Densit7 of 3ater ) 1000 2g m0-)Rajah -.2 menunjukkan satu objek yang mempunyai berat '.() # terendam sepenuhnya didalam air.!erat ketara bahan itu ialah '.(( #.*+etumpatan air , -''' kg m%./(i) 4hat is the buo7ant force on the obCectE!erapakah daya apungan yang bertindak ke atas objek03(&)(i)?1mar2@ A ?1 markah@1(ii) Determine the +o'ume of the obCect.$entukan isipadu objek itu.3(&)(ii)2TotalA3?2mar2s@ A ?2 markah@[Turn over4531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIAL9F- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 1054531/2w .d oc u -tr a c k.cFor/,aminer8suse4Diagram ..1 sho3s a 'ight ra7 incident into a g'ass b'oc2.Rajah ..1 menunjukkan sinar &ahaya merambat memasuki bongkah ka&a.4(a)(i)14(a)(ii)2iagram ..1ajah ..1(a)(i) 6ased on Diagram ..11 the ang'e of .2o is 2no3n asG!erdasarkan Rajah ..1 " sudut 1(o dikenali sebagai2333333333333333333333333333333333333333.?1 mar2@A ?1 markah@(ii)5a'cu'ate the refracti+e inde, for the g'ass b'oc2.Hitungkan indeks biasan bagi bongkah ka&a itu.?2 mar2s@A ?2 markah@(b)$he 'ight ra7 is adCusted so that the ang'e at M is no3 .8o1 as sho3n in Diagram..2.Sinar &ahaya dilaraskan supaya sudut di 4 ialah 15o" seperti ditunjukkan pada Rajah ..2 .48Diagram ..2Rajah 1.(4531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 11-4531/2w .d oc u -tr a c k.c(i) #n Diagram ..21 comp'ete the path3a7 for the 'ight ra7.6ada Rajah ..2" lengkapkan laluan sinar &ahaya.?1 mar2@ A ?1 markah@(ii) /,p'ain 7our ans3er in 4(b/ (i).$erangkan jawapan anda dalam 4(b)*i/........................................................................................................................?1 mar2@ A ?1 markah@*&/ Diagram ..- sho3s a 'ight ra7 propagating into a g'ass b'oc2.Rajah ..- menunjukkan sinar &ahaya merambat ke dalam sebuah bongkah ka&a.ForExaminersuse4(b)(i)14(b)(ii)1Diagram ..-Rajah ..-(i) #n Diagram ..-1 comp'ete the propagation of the 'ight ra7.6ada Rajah ..-" lengkapkan perambatan sinar &ahaya.?1 mar2@ A 7- markah8(ii) 4hat happens to the ang'e of refraction if a denser g'ass b'oc2 is usedEApakah yang berlaku kepada sudut biasan jika bongkah ka&a berketumpatan lebihtinggi digunakanE.......................................................................................................................?1 mar2@ A 7- markah84(&)(i)14(&)(ii)1TotalA49[Turn over4531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIALF- XC h a n ge Vie w.F- XC h a n ge Vie ww .d o c u -tr a c k.cw .d o c u -tr a c k.chttp://exammy.com/http://edu.joshuatly.com/F- XC h a n ge Vie w/F- XC h a n ge Vie ww .d o c u -tr a c k.cw .d o c u -tr a c k.chttp://exammy.com/http://edu.joshuatly.com/F- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 16 4531/2w .d oc u -tr a c k.cForExaminersuse7Diagram 9.1 sho3s a simp'e e'ectric motor.Rajah 9.1 menunjukkan sebuah motor elektrik ringkas.NSPermanent magnet4agnet kekalrmature

armatur5arbon brush!erus karbon7(a)(i)17(a)(ii)1Diagram 9.1Rajah 9.1(a)(i) "ame the t7pe of motor sho3n in the diagram abo+e.#amakan jenis motor yang ditunjukkan pada rajah di atas.>>>>>>>>>>>.......................................................................?1mark@ A ?1 markah@(ii)4hat is the function of the part 'abe'ed HEApakah fungsi bahagian yang berlabel 90>>>>>>>>>>>.......................................................................?1mark@ A ?1 markah@124531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 17 4531/2w .d oc u -tr a c k.c(b) (i) 67 refering to Diagram 9.11 dra3 the re'ated catapu't fie'd in thediagram be'o3.:engan merujuk Rajah 9.1" lukiskan medan lastik pada rajah di bawah.ForExaminersuseN S2?2(ii) In 7our diagram1 dra3 and 'abe' the direction of forces produced.6ada rajah anda" lukis dan labelkan arah daya%daya yang dihasilkan.?1mar2@ A ?1 markah@(iii) State one factor that affects the speed of rotation of the armature.#yatakan satu faktor yang mempengaruhi kelajuan putaran gegelung wayar>>>>>>>>>>>.......................................................................?1mar2@ A ?1 markah@7(b)(i)27(b)(ii)17(b)(iii)113[Turn over4531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 18 4531/2w .d oc u -tr a c k.cForExaminersfood 3here a b'ade is attached to the e'ectric motor.Rajah 9.2 menunjukkan motor elektrik yang sama jenis di dalam sebuah mesin pengisaryang digunakan untuk mengisar makanan di mana satu mata pisau disambungkan kepadamotor elektrik$o po3er supp'7use(&) Diagram 9.2 sho3s the same t7pe of e'ectric motor used in a b'ender to grind+e bekalan kuasattached tob'ade of b'ender:isambung kepadapisau pengisarrmatureArmatur7(&)(i)27(&)(ii)2TotalA710Permanent magnet4agnet kekalDiagram 9.2Rajah 9.2Suggestand e,p'ain the modifications3hich need to be done for each ofthefo''o3ingG;adang dan terangkan pengubahsuaian yang perlu dilakukan untuk setiap yang berikut2(i)$o enab'e the motor to be used 3ith a'ternating current.4embolehkan motor digunakan dengan bekalan arus ulang alik.>>>>>>>>>>>........................................................................>>>>>>>>>>>........................................................................?2 mar2s@ A ?2 markah@(ii) $o increase the strength of the magnetic fie'd .4enambahkan kekuatan medan magnet.>>>>>>>>>>>........................................................................>>>>>>>>>>>........................................................................?2 mar2s@ A ?2 markah@144531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cw .d oc u -tr a c k.cR2/R1+R2= V2 / Total pdR2 / R1 + R2 = 2 / 6750 ohm20F- XC h a n g e Vie w F- XC h a n g e Vie ww .d o cu -tr a ck.c(b)

The transistor is switched on when the base voltage V2 2 Vw .d o cu -tr a ck.cTransistor itu dihidupkan apabila voltan tapak V2 2 V(i) !rite an e"#ation to show the relationshi$ between I%& I'and IETuliskan satu persamaan untuk menunjukkan hubungan antara I%& I'dan IE ((((((((((((((((((((((((((((()* mark+)* markah+(ii) 'alc#late the ,ini,#, val#e o- R2when the transistor is switched onHitungkan nilai minimum R2 apabila transistor itu dihidupkan.?2 ,ar.s@)2 markah+(c) The resistor R2 is then re$laced with a light de$endent resistor&/01& which hashigh resistance when it is dar.Perintang R2kemudian digantikan dengan perintang peka cahaya, PPC ,yangmempunyai rintangan tinggi apabila gelap.(i) State whether the b#lb will light #$ d#ring the da2 Give reason to 2o#ranswerNyatakan sama ada mentol itu akan menyala pada aktu siang. !elaskanjaapan anda. (((((((((((((((((((((((((((( (((((((((((((((((((((((((((()2 marks+)2 markah+(ii) %esides being #sed as a switch& state other #se o- a transistor"elain daripada digunakan sebagai satu suis, nyatakan satu kegunaan lainbagi transistor . ((((((((((((((((((((((((((()* mark+)* markah+23http://chngtuition.blogspot.comF- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr ack .c14 w .d oc u -tr a c k.c10 2i!)"!' 10.1.h&1. ! t"!n.i.t&" /i"/-it. 2i!)"!' 10.2 !nd 2i!)"!' 10.7 .h&1the t"!n.i.t&" /i"/-it 1ith di5e"ent 'i/"&!''ete" "e!din) !nd 'i$$i!''ete""e!din).2i!)"!' 10.12i!)"!' 10.22i!)"!' 10.7F- XC h a n g e Vie w F- XC h a n g e Vie w10w .d o cu -tr a ck.c!e"t#on CBahagian Cw.d o cu -tr a ck.c?20 mar2s@?20 markah@Answer any one #nda dikehendaki memberikan beberapa cadangan untuk merekabentuk sebuahkayak yang boleh bergerak lebih laju dan selamat$enggunakan pengetahuan tentang gerakan, daya dan si&at*si&at bahan,terangkan cadangan itu yang merangkumi aspek*aspek berikut/(i) the s#r-ace o- the canoepermukaan kayak(ii) the sha$e o- the canoebentuk kayak(iii) the ,aterial o- the canoebahan yang digunakan untuk kayak(i+) the si?e o- a $eddle"ai6 pendayung(+) ,aterial #sed -or $eddle'ahan yang digunakan untuk pendayung)*: marks+)*: markah+http://chngtuition.blogspot.comF- XC h a n ge Vie w F- XC h a n ge Vie ww .d o c u -tr a c k.c5ONF34ENT3A5 24 403162w .d o c u -tr a c k.cam 10.1(a) Diagram 10.1 sho3s one insu'ated conductor 3hich is mo+ed do3n3ards in a magneticfie'd. Diagram 10.2 sho3s three insu'ated conductors 3hich are mo+ed do3n3ards in themagnetic fie'd.Rajah !. menunjukkan satu konduktor "erte"at digerakkan ke "awah dalam medan magnet. Rajah !.#menunjukkan tiga konduktor "erte"at digerakkan ke "awah dalam medan magnet.Direction of motion of insu'ated conductor$rah gerakan konduktor "erte"at" S" S5entre0Kero ga'+anometer%al&anometer pusat si'ar5entre0Kero ga'+anometer%al&anometer pusat si'arDiagram 10.1 Diagram 10.2Rajah !. Rajah !.#(a) 4hat is meant b7 e'ectromagnetic inductionE ?1 mark@$pakah yang dimaksudkan dengan aruhan elektromagnet( ?1 markah@(") Lsing Diagram 10.1 and Diagram 10.21 compare1)enggunakan Rajah !. dan Rajah !.#* "andingkan*(i) $he number of conductor 3ires ?1 mark@+ilangan wayar konduktor ?1 markah@(ii) $he def'ection of the ga'+anometer pointer ?1 mar2@,esongan penunjuk gal&anometer ?1 markah@15403162 CONF34ENT3A5http://edu.joshuatly.com/http://www.joshuatly.com/F- XC h a n ge Vie w F- XC h a n ge Vie ww .d o c u -tr a c k.cCONF34ENT3A520 403162w .d o c u -tr a c k.c(iii) Re'ate the number of conductor and the rate of cutting of magnetic f'u,.?1 mar2@-u"ungkaitkan "ilangan konduktor dan kadar pemotongan .uks medan magnet.?1 markah@(i+) Re'ate the rate of cutting of magnetic f'u, and the induced current.?1 mark@-u"ungkaitkan kadar pemotongan .uks medan magnet dengan arus aruhan.?1 markah@(+) "ame the ph7sics 'a3 in+o'+ed. ?1 mark@/amakan hukum 01ik yang terli"at. ?1 markah@2c3 Diagram 10.- sho3s the structure of a generator. /,p'ain ho3 the generator canbe used to produce e'ectricit7.Rajah !.4 menunjukkan struktur se"uah penjana. 5erangkan "agaimana penjana itu digunakanuntuk menghasilkan arus elektrik.5oi'%egelung5ommutator6omutatorS NResistor5arbon 6rush+erus kar"on!a'+anometer,erintangDiagram 10.-Rajah 10.-?. marks@?. markah@7T'rn pa&e oer403162 CONF34ENT3A516http://edu.joshuatly.com/http://www.joshuatly.com/F- XC h a n ge Vie w F- XC h a n ge Vie ww .d o c u -tr a c k.c5ONF34ENT3A5 2- 403162w .d o c u -tr a c k.c2d3 Diagram 10.. sho3s the cross section of a mo+ing coi' microphone 3hichcon+erts oneformofenerg7intoanother.Rajah !.7 menunjukkan keratan rentas se"uah mikro'on gegelung "ergerak yangmenukarkan satu "entuk tenaga ke "entuk yang lain.MagnetMoice coi'gegelung suara#utput6eluaranDiaphragm8ia'ragmaDiagram 10..Rajah 10..4hen sound +ibratesthediaphragm1 the attached +oice coi' mo+es in andout the magnetic fie'd and generates a sma'' e'ectric current in the coi'.Lsing the appropriate concepts in ph7sics1 suggest and e,p'ain suitab'emodificationsor3a7stoenab'ethemicrophonetodetectsoundeffecti+e'7and generate bigger current based on the fo''o3ing aspects G$pa"ila "unyi menggetarkan dia'ragma* gegelung suara yang "ersentuhan dengannya"ergerak ke dalam dan ke luar medan magnet dan menghasilkan arus elektrik yang kecil didalam gegelung.)enggunakan konsep 01ikyangsesuai* cadang danterangkan pengu"ahsuaianataucarayang "oleh dilakukan untuk mem"olehkan mikro'on mengesan gelom"ang "unyi secara"erkesan dan menghasilkan arus yang le"ih "esar "erdasarkan aspek-aspek "erikut :(i) $he thic2ness of the diaphragm6ete"alan dia'ragma(ii) $he strength of the materia' for the diaphragm6ekuatan "ahan untuk dia'ragma(iii) $he number of turns of the coi'+ilangan lilitan gegelung(i+) $he diameter of the coi' 3ire8iameter dawai gegelung(+) $he strength of the magnet6ekuatan magnet?10 marks@?10 markah@403162 17http://edu.joshuatly.com/http://www.joshuatly.com/CONF34ENT3A5F- XC h a n ge Vie w F- XC h a n ge Vie ww .d oc u -tr a c k.cCONFIDENTIAL 26 4531/2w .d oc u -tr a c k.c10 Diagram 10.1 and Diagram 10.2 sho3 the pattern of interference of 3ater 3a+es.Rajah 10.1 dan Rajah 10.2 menunjukkan &orak interferens bagi gelombang air.5oherent sources6un&a koheren5oherent sources6un&a koherenPDiagram 10.1Rajah 10.1(a) ;o3 does constructi+e interference occurE!agaimana interferens membina terjadi0(b) Lsing Diagram 10.1 and Diagram 10.21 compare the4enggunakan Rajah 10.1 dan Rajah 10.21 bandingkan(i) distance bet3een the t3o coherent sources.jarak di antara dua sumber koheren.PDiagram 10.2Rajah 10.2?1 mar2@ A ?1 markah@?1 mar2@ A ?1 markah@(ii) +ertica' distance bet3een point P and the respecti+e coherent sources.jarak menegak di antara titik 6 dan sumber koheren berkaitan.?1 mar2@ A ?1 markah@(iii) 3a+e'ength of the propagating 3ater 3a+e.panjang gelombang bagi gelombang air yang merambat.?1 mar2@ A ?1 markah@(i+) distance bet3een t3o consecuti+e antinodes.jarak di antara dua garis antinod yang berturutan.?1 mar2@ A ?1 markah@(c) Re'ate the distance bet3een the t3o coherent sources 3ith the distance bet3eent3o consecuti+e antinodes.Hubungkaitkan jarak di antara dua sumber koheren dengan jarak di antara dua garis antinodberturutan.?1 mar2@ A ?1 markah@184531/2 B200: 5op7right 6ahagian Pendidi2an dan &atihan (Menengah) MR CONFIDENTIALF- XC h a n ge Vie wCONFIDENTIAL 4531/3F- XC h a n ge Vie ww .d oc u -tr a c k.c!e"t#on Aw .d oc u -tr a c k.cBahagian ?28 mar2s A(5 markah@ns3er all =uestions=awab semua soalan1student carries out an e,periment to in+estigate the re'ationship bet3een thesine of the ang'e of incidence1 i and the sine of the ang'e of refraction1 r of a g'assb'oc2.$he arrangement of the apparatus for the e,periment is sho3n in Figure 1.1Ra7 bo,ProtractorIncidence ra7!'ass b'oc2Refracted ra7i)rNFI!LR/ 1.1 ARA=AH -.- ra7 of 'ight is directed a'ong the ang'e of incidence1 i * 20o and forms the ang'eof refraction1 r+ $he ang'e of refraction is measured b7 using a protractor. $hecorresponding reading of r1 " is sho3n in Figure 1.2 on page D.$he e,periment is repeated b7 +ar7ing the ang'e of incidence, i, to -0o1 .0o1 D0oand I0o. $he corresponding ang'es of refraction1 r are sho3n in Figures 1.-1 1..11.D and 1.I on pages I and 9 respecti+e'7.F- XC h a n ge Vie wCONFIDENTIAL 4531/3F- XC h a n ge Vie ww .d oc u -tr a c k.cw .d oc u -tr a c k.ci ) 200FI!LR/ 1.2$he reading of the ang'e of refraction1 r 3hen i ) 2004531/3 CONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie wCONFIDENTIAL 4531/3w .d oc u -tr a c k.cw .d oc u -tr a c k.ci ) -00FI!LR/ 1.-$he reading of the ang'e of refraction1 r 3hen i ) -00i ) .00FI!LR/ 1..RA=AH -.1$he reading of the ang'e of refraction1 r 3hen i ) .00Turn over4531/3 CONFIDENTIALF- XC h a n ge Vie wCONFIDENTIAL 4531/3F- XC h a n ge Vie ww .d oc u -tr a c k.cw .d oc u -tr a c k.ci ) D00FI!LR/ 1.D$he reading of the ang'e of refraction1 r 3hen i ) D00i ) I00FI!LR/ 1.I$he reading of the ang'e of refraction1 r 3hen i ) I004531/3 CONFIDENTIALF- XC h a n ge Vie wCONFIDENTIAL 4531/3F- XC h a n ge Vie ww .d oc u -tr a c k.cw .d oc u -tr a c k.c*a/ For the e,periment described on page . 1 identif7(i) the manipu'ated +ariab'epembolehubah dimanipulasikan1*a/(i)(ii)>>>>>>>>>>>>>>>>>>>>>>>>>>>>? 1 mar2 @the responding +ariab'epembolehubah bergerak balas1*a/(ii)>>>>>>>>>>>>>>>>>>>>>>>>>>>>? 1 mar2 @(iii) the fi,ed +ariab'epembolehubah dimalarkan1*a/(iii)>>>>>>>>>>>>>>>>>>>>>>>>>>>>? 1 mar2 @*b/ Determine the ang'e of incidence1 i and the corresponding ang'e ofrefraction1 r1. for Figures 1.21 1.-1 1..1 1.D and 1.I.$abu'ate 7our resu'ts for i! r! $#n i an- $#n r in the space be'o3.$entukan nilai sudut tuju!i dan nilai sudut biasan" r yang sepadan pada Rajah -.(" -.." -.1"-.) dan -.C"=adualkan keputusan anda bagi i! r" sin i dan sin r pada ruang di bawah.1*b/? I mar2s @Turn over4531/3 CONFIDENTIALF- XC h a n ge Vie w F- XC h a n ge Vie wCONFIDENTIAL 4531/3w .d oc u -tr a c k.cw .d oc u -tr a c k.c*&/ #n the graph paper on page 101 p'ot a graph of sin r against sin i.ForExaminers>se6ada kertas graf di halaman 5" lukiskan graf sin r melawan sin i.1*&/? D mar2s @*d/ 6ased on 7our graph1 state the re'ationship bet3een sin r and sin i.!erdasarkan graf anda" nyatakan hubungan di antara sin r and sin i.1*d/>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>? 1 mar2 @*e/ State one precaution that shou'd be ta2en to obtain the accurate readings of i.#yatakan satu langkah berjaga%jaga yang perlu diambil untuk mendapatkan ba&aan i yangjitu.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>1*e/>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>? 1 mar2 @Total4531/3 CONFIDENTIALe!%LIT 9 4531/32student carries out an e,periment to in+estigate the re'ationship bet3een the obCect .do cu*track.c distance1 u1 and 'inear magnification1 41 of the image formed b7 a con+e, 'ens..do cu*track.c$he resu'ts of this e,periment are sho3n in a graph of u against14in Diagram 2 onpage :.$he resu'ts are used to determine the foca' 'ength of the con+e, 'ens.Seorang pelajar menjalankan suatu eksperimen untuk menyiasat hubungan antarajarak objek" u" dan pembesaran linear" 4" bagi imej yang dibentuk oleh sebuah kanta&embung.+eputusan eksperimen ini ditunjukkan dalam suatu graf u melawan14dalam Rajah 2pada halaman :.+eputusan eksperimen ini digunakan untuk menentukan panjang fokus kanta &embungitu.(a) 6ased on the graph in Diagram 2G!erdasarkan graf di Rajah 2G(i) State the re'ationship bet3een u and 4..#yatakan hubungan antara u dan 4.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>..?1 mar2 A markah@(ii) Determine the +a'ue of u 3hen 4 ) 2.D.Sho3 on the graph1 ho3 7ou determine the +a'ue of u.$entukan nilai u apabila 4 ) 2.D.$unjukkan pada graf" bagaimana anda menentukan nilai u.u ) >>>>>.. ?- mar2s A markah@(b) $he re'ationship bet3een u and14is gi+en b7 the formu'a1 43here f is the foca' 'ength of the 'ens.Hubungan antara u dan14diberikan oleh formula1 4di mana f ialah panjang fokus kanta itu.4431/3 ht t p/ 0 0 edu. j oshuat l y.com0 !%LIT1edah+* ,C ha n g e Vie !%LIT+* ,C ha n g e Vie +* ,C ha n g e Vij.k21u = f + f "u = f + f 123(( P"P$+* ,C ha n g e Vij.k8 4531/3e .do cu*track.c (i)Determine the +a'ue of f from the u0intercept.Sho3 on the graph ho3 7ou determine the +a'ue of f.22.do cu*track.c$entukan nilai f daripada pintasan0u.$unjukkan pada graf bagaimana anda menentukan nilai f.f ) >>>>>> ?2 mar2s A markah@(ii) 5a'cu'ate the gradient of the graph.Hitungkan ke&erunan graf itu.?- mar2s A markah@(iii) From 7our ans3ers in 2(b)(i) and 2(b)(ii)1 ca'cu'ate the a+erage +a'ue of thefoca' 'ength1 f1 of the 'ens.:aripada jawapan anda kepada 2(b)(i) dan 2(b)(ii)1 hitungkan nilai puratabagi panjang fokus1 f1 bagi kanta itu.?2 mar2s A markah@(c) State one precaution that shou'd be ta2en to impro+e the accurac7 of the readingsin this e,periment.#yatakan satu langkah berjaga%jaga yang perlu diambil untuk memperbaikketepatan ba&aan dalam eksperimen ini.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>...>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>...?1 mar2 A markah@4431/3 ht t p/ 0 0 edu. j oshuat l y.com0 !%LIT1edahew ewtwado crustoatw a cetw ado c ru s to a tw a c e(a) ,a.e one s#itable in-erence 23(( P"P$ww wwThe 7777777777777777777 is depend on the 7777777777777777777777777777(b) state one a$$ro$riate h2$othesisThe higher the @@@@@@@@@@@@@@@@@@@@@@@& the @@@@@@@@@ the @@@@@@@@@@@@@@@@@@@@(i) ai, o- the e5$eri,entto deter,ine the relationshi$ between @@@@@@@@@@@@@@@ and @@@@@@@@@@@@@@@(ii) variables in the e5$eri,entMV @@@@@@@@@@@@@@@@@@@@@@@@@1V @@@@@@@@@@@@@@@@@@@@@@@@@@'V @@@@@@@@@@@@@@@@@@@@@@@@@@@(iii) list o- a$$arat#s and ,aterials(Aro, list given and #se to ,eas#re 1V and MV with controlling the ,otion)@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@(iv) arrange,ent o- the a$$arat#s(diagra, with label)(v) the $roced#res o- the e5$eri,ent* ,ethod o- controlling the ,ani$#lated variable (initial data)__________________________________________________2 ,ethod o- ,eas#ring the res$onding variable (#se what and how to ,eas#re )@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@7 re$eat with 6 di--erence val#e@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@(vi) the wa2 o- tab#late dataMV& s2,bol and #nit 1V& s2,bol and #nitew ewtwado crustoatw a cetw ado c ru s to a tw a c eKed!h1. 2i!)"!' 7.1 .h&1. !n e',ty ,$!.ti/ #&tt$e #ein) $e%t &n the .e!t &% ! /!" &n ! h&t !%te"n&&n.ww ww2i!)"!' 7.2 .h&1. the .!'e ,$!.ti/ #&tt$e the %&$$&1in) '&"nin) 1hen the 1e!the" 1!. e"y /&$d.;ith the -.e &% !,,!"!t-. .-/h !. ! )$!.. t-#e !. .h&1n in 2i!)"!' 7.7, 1!te" #!th, !nd &the"!,,!"!t-., de./"i#e &ne e(,e"i'ent t& ine.ti)!te the hy,&the.i. .t!ted in 7 *#+2.;ith the -.e &% !,,!"!t-. .-/h !. !n !''ete", /&n.t!nt!n 1i"e !nd &the" !,,!"!t-., de./"i#e &nee(,e"i'ent t& ine.ti)!te the hy,&the.i. .t!ted in < *#+.ew ewtwado crustoatw a cetw ado c ru s to a tw a c e;ith the -.e &% !,,!"!t-. .-/h !. .$&tted '!.., ,$!.ti/ine !nd &the" !,,!"!t-., de./"i#e &nee(,e"i'ent t& ine.ti)!te the hy,&the.i. .t!ted in 7 *#+.?.ww ww;ith the -.e &% !,,!"!t-. .-/h !. the"'&'ete", !''ete", "e.i.t&" 1i"e !nd &the" !,,!"!t-., de./"i#e&ne e(,e"i'ent t& ine.ti)!te the hy,&the.i. .t!ted in < *#+.C.;ith -.e &% !,,!"!t-. .-/h !. ! 'et!$ #$&/6H i"&n "&d, .,"in) #!$!n/e, #e!6e" !nd &the" !,,!"!t-.,de./"i#e !n e(,e"i'ent t& ine.ti)!te the hy,&the.i. .t!ted in 7 *#+.D. 2i!)"!' 7 .h&1. ! dented ,in) ,&n) #!$$ then ,-t in ! #!.in th!t /&n.i.t /&$d 1!te"*2i!)"!' 7 *!++, 1!"' 1!te" *2i!)"!' 7 *#++, !nd h&t 1!te" *2i!)"!' 7 */++. O#.e"e