Sc Paper 2_trial Spm Trg_2009

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SULIT151v2SciencePaper 2September20092 % hours

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JABATAN PELAJARAN NEGERI TERENGGANUPEPERIKSAANSIJIL PELAJARAN PERCUBAANMALAYSIA 2OO9

SCIENCEPaper

Two Hours and Thirfy MinutesDO NOT OPENTHIS TEST PAPERUNTII, YOU ARE TOI,D TO DO SOThisquestionpaper consist.s f threesections:SectionASectionB and SectionC

Answer all questions n SectionA and SectionB.Writeyour answersor Section A and Section Il clearlyin the spaceprovided on the queslionpaper..ForSectionC, answerQuestion 0 undchoose notherQuestion11 or Question12. Vrite. our ansv,erorSectionC on the ined pagesprovided at the endofthispoper. Answershoilel be clesr qnd logical.The marksallocatedfor euchsub-purl ofa questionsre shov,tr n brackets.

5 The ime suggesteclo completeSection A is 60 minules,SectionB ,J J0 ninutes azd Section C is 40 minutes.6 Youare allotted to answer the question n Englishor Bahasqfufelaw.

For Examiner'sUseSection Ouestion MarksA

I231

B36I89

C t0l1t2Total

DittLl i tkrrt ( ) l t l t .AKRAN{ NI.]GERITERI]NGGANTI

I ) ih iutui Oleh:KERA.IAANNEGI]RITEREN(;GANI]

Dit etuk Olalt;!)crcelakan Ytwtstut Lslutt Terettg,,guttuSdrt. Bltd.

Tel: 609 666 8611/6652/8601 Fuk.s; 609'66(t 0611/006-lThisquestion aper onsists f 19 printed ages

ILihat sebelahSTJLITtStt/2


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Section120markslAnswer all questions n this sectiotr.Jaw,ab semua soalanThe time suggested o answer this section is 60 minutes

Masa 1;angdicadangknn untnk bahagian ini ialah 6OminitDiagram l.l and Diagram 1.2 show an experiment o study the electricalconductivityof lead(Il) bromide.Raiah I.l dan Rajah 1.2 mcnunjukkan eksperintenuntukmengkaji kekonduksianelektrikplumbum(ll) bromida

r-arD0n .tecrodeCarbon lectrodeElelrtrod karbon

Carbon lecEodeElekned karbon

Diagram lRajah1.1

Elektrod karbonSohdead(l l) romrdePepepl plunbun(ll) bromtda

Carbon lectrodeElektrod karbonMoltenead(ll)bronudeLebur* n p umbun( I) bromidat

HeatHaba

(a) ( i )Diagram1,2Rajah1. 2

What s the eading f theammetern l)iagram1.2?Apakahbacaanammeter uh Rajah1.2?

(ii) Stateone nferenceor this experiment.Nyatakansalu inferensbagi eksperimenni

l l markl

SULITstU2


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ST.ILIT JStatehemanipulatedariablen thisexperiment.Nyatakotpembalehubah imanipulasikan alameksperimenni.

151u2o)

(c)I narkl

State nehypothesisor thisexperimentl,lyatakan da hipotesisuntukeksperimenni.

fl nrkl(d) Predicthe eadingf ammeterf themottenead(ll) romides cooled t oom emperaturekmalkanbacaan mmeterika leburan lumbum(Il1romida isejukkanodasuhu ilikI markl

Diagram shows nexperimento studyhe heat hangen a fermentationrocessf glucose.Rnjah2 menuniukkanksperimen ntukmengkaji erubahanhabadalamprosespenapaionglukosa.

DiagramRajah2

The esuhs f the experiments recordedn l'able2.Keputusan ksperimenitunjul:kandalamJadaal2,Time min)Masa(min) Thermometereading"C)Bacaan ermometer0 285 30l0 32I520 3525 35Table2Jadual2

ll,ihatsebelahSULIT

Glucose olution yeastLarutanglukosa+ yis

t'tu2


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STLIT t5lU2(a) Based n the hennometereadingn f)iagram2, complete able7.Bcrdasurkanbacaan ennoneterdalum Rajuh2, Iengkapkan adual2. $ markl(b) Basedon Table2, draw a graph o show he retationshipbetween he ime and he temperature.Berdasarknn adual2, luki.vgrnf untukmenunjukknn ubwngan ntara tnasadan suhu.

Temperaturet)Suhu

Time (min)Masa

[2 marksT

(c) What s the elationship etweenhe ime and he emperaturen the irst l5 minutes?Apakahhubunganont&ramasadan .suhu alam mnsa 5 minit yang pertama?

Il. markj(d) Predict he temperature t lhe 3tlh minute.Ramnlkan uhunadaminit ke-34.

I marklSULIT5tu2


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]s;truTi] Thediagram howshe ormationof an mage y a convexens.Rajahmenunjukkanembentukanmejolehkantacembung

Diagram (ii)Rajah (ii)(a) (i) Completehe aydiagramo show he ormarion f an mage n Diagram3(ii)Izngkapkan ajah sinaruntuknrenunjukkmembentukanmejpadaRajah3(ii)

(ii) Measure ndwrite thesizeof the mage.akur dannlis saiz mei.. . . . . . . . , . . , ,m

(b) What s theconstant ariablen theexperiment?Apakah embolehubahangdimalarktndalamexperirnenni?

tstlt2

[2 marksl

[l mark\

Diagram (i)Rajah3(i)

U mark)

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SULIT tstu1!(c) State he hypothesisof this experiment.Nyatakan hipotesis bagi eksperimen ni,

I mark)Diagram 4 shows he experiment o studythe effect of potassiumon plant growth.Seedlings f com is put in two different ypesof culturesolution or one week and he result s shownbelow.Rojah 4 menunjukkan eksperimenuntuk mengkaji kesan unsur kalium bagi pertumbuhan anah benih.Anak benih agung dimasukkan di dalam dua enis larutan kultur yang berbezaselqma seminggu dankeputusan el


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STLITWhat s theconclusion f thisexperiment?Apakahkesimpulan agi eksperinrenni?

rstlt2(c)

LImarkl(d) State heoperational efinition of the seedling rowrh,Nyatakan efnisi secqrct perosibagipertumbuhan nak benih.

U marklSection B[30 nar&sl

Answerall questionsn this section.The tmesuggestedo ans*-er hissection s 5A minutes.Diagram shows pathway f impulse n human ervous ystem.Rnjah5 menunjvkkanaluan mpulsdalam sistem araf nanusia-

falt l

fsrt*t'-_*lI Rn eronno,III+ir--*]

C.entral ervous ystemSi.stemarafpusatResponseGerakbulas+III

(a)

Sensory euroneNeuronderia

Diagram5Rajah5Based n Diagram5, nameP andneuroneQ.BerdasarknnRajah 5, nwrwkanP dan neuronQ.P:NeuroneQ :NeuronQ 12marksl

fl-ihatsebelahSULIT1tU2


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tStt/2(b) State ne ypeof effector n human ody.Nyataktn s&u ienis efelaardalambadanmawtsia.

ll markl(c) State he unctionof sensory eurone.

Nyatakanungsineuronderia.U markl

(d) Mark ({) the activities that controlled by the cerebellum.fftrula (J) bagi aktiviti-aktiviti yang dikwal olehserebelum.

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SULIT tstuzDiagram6 shows he crossbreedingof a malerat with heterozygous tack ur anda female at withwhite ur. B representsominantgenes ndb representsecessive enes.Raiah6 menunjukkan ncukanantara tikusantan berbuluhitam tak tulen dan tikushetinaberbuluputih.B mewakili gendominandan b mewakiligen resesit.

'&nlP: I

Male heterozygouslack urTikusontan berbuluhitamTak tulen

I)iagram6Rajah6State hegenotypeof parentP.Nyataknngenotip nduk P.

Femalewhite urTikusbetinaberbuluputih4n'-61-f,

6F::./

%,EI68IFIets|;;;l FirstgenerationGenerasi enama(a)

Il markl(b) State he genotypeofNyatakan genotip(i ) ratStikusS(ii) ra tU :tikusU

[2 marks](c) Iftwo black ats rom the irst generations crossed achother,what s theratioof black at o thewhiterat n the second eneration?Jika dua tikus hitrtmdari generasiperloila dikacukkon esume endiri, apakannisbah tikushitarnkepada ikusputih dalam generasikeduo?

IL mark]Name he actor hat nfluence hecolourof fur.Nyatakanaktor yangmempenganthiwuma bulu tikustersehut(d )

U markl

[,ihat sebelahSTJLITstU2


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SULIT 10What s the ypeof variation f fur colour?Apakahenisvartasibagiwamabulu?

tslu2(e)

tI murklI)iagram7.1shows cross ection f anoil pdm fruitsRajah7.1menunjukkn keratan entasbuahkelapasawit.

Diagram .1Rajah7.(a) Namepartof the ruit thatproduceshcmostoil.

Namalun bahagian buah kelapasawity-angmenghasilkanminyakpalingbanyakIl markl(b) Stateone advantageof oil palm to our health.Nyatakan sata kebaikail minyak kelapa sawit pada kesihatan.

Common altGsram biasaPalmoil + sodiumhydroxideMinyaksawit+natrium hidroksida

Glass odRod kacs

I markl

HeatPanaskanDiagnml.2Rajah .2

L5t'/2 SULXT


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SULIT l l Lstu2(c ) Diagram7.2showsheprocess f makingsoap n laboratory.Rajah7.2 menunjuldant rosesmembuat abundi mabwl.

(i) Name heprocess f makingsoap,Namakanprosz..s embuat abun.

{l markl(ii) Statehe unctionof commonsalt.Nyatakanun gsigarambiasa

Il markl(d) Stateanother plantoil thatcanbe used to producesoap.Nyankanminyak umbuhan ain yangboleh digunaknnuntukmenghasilkan abun.

Il mark)(e) Diagnm 7.3 shows he structure f soapmolecules. ircle hepart hatdissolve n grease r oil.Raiah7.3 menuniuh'*.antruknr molekulsabun.Bulatkan bahagianyang arut dolam grisaauminyak.

TailekorDiagram 7.3Rajah 7.3

HeadKepala

Il markl

[LihatsebelahSULIT'tu2


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SULIT l2Diagram showsheprincipleof a four strokes etrolengine.Rajah8 menunjukkan perasi enjinpetrol empatejang

DiagramRajuhName trokesM andN in f)iagram .NamakanejangM dqn'N dalan RajahB.(i) Namestructure in Diagram .Namakan trukturL dalan Raiuh8.

Istlt2

L2mark^sl(a)

(b)

lL narkl(ii) What s the unctionof structure ?Apakahungsist uktur L?

ll markl(c ) Mark( {) in the boxes rovidedn Diagram8 to showwherehecombustion f thepetrol akesplace.Tandakan "[ ) di dalam kotakyangdisediakan alamRajah8 untukmenunjukkan i manapembakaranet ol be laku. U markl

t51lt2 STJLIT


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ST]LIT

(a) (i)

rStt/2(d) Stateone difference between our strokespetrolengine and a four strokesdiesel angine,Nyatetkcnsatuperbezaan antara enjin petrol empat lejang dengan enjin diesel empat lejang.

I l nnrklDiagram showshemodulation rocessetweenadiowaves ndaudiowavesrequencyo formmodulated avesn the ransmissionystem.Raiah9 menunjukkan rosesmodula,si i anraragelombangadiodengangelombangrekuensiuudiountukmembentukelombangermodulasialam istem emoncaradio.

l3

ModulatedwavesGelombang termodulasi

DiagramRaiuh9

Complete andQ in theboxes n Diagram using he ollowing nformarionLcngkapkan danQ d.alametak padaRajah9 denganmaklumat ertkuta Radio wavesGelombang radio

Audio waves requencyG elombangfr ekuens audioa

(ii) Draw modulated avesn theboxprovidedn DiagramLukiskangelontbangermodulasi alampetakyangdisediakan adarajah9

[2 marksl

ll nwrkl

ll,ihatsebelahST]LIT

P:

tstu2


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SULIT t'tU2(b) State he type of modulatedwaves drawn in Diagram 9.Nyatakan enisgelombang ermodulasiyang dilukis dalam Rajah 9'

fi rnurkl(c ) Nameacomponentn radio ransmissionystemhatproduceadiowaves.

Namakan omponenlalamsistemerwncarradioyangmenghasilkanelombangadio-ll marklGiveonereasonwhy radiowaves reusedn radiocommunicalionystemsBerikan atu sebabmengapa eletmbangadiodigunaknnlalam sistem omunikasiarlio.

tl marklSection C[20 marb]

Answer Question l0 an


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STJLIT rstu2(iii) List of appararusand materials

Sennrai radas dan bahant [l mnrkl(iv) Procedureor methodProsedur atuu kaedah 11marksl(v) Tabulationof dataPenjwlualan data lI mark)

11 (a) State wo type of chemical substances nd tlpir effectsof excessiveuse n fcrod processing"Nyatakanduajenis bahankimiodan kesanpeng6uncannya yang berlebihan ke dalammqkanenyung diproses.[4 marks]

(b) A fisherman finds that his catch has ncrease.Statehow the catchcan be stored or a longerperiod.Your answer should include the following aspects;Seorangnelayanmendapati hasil tungktpanv*a emakin bertambah. Nyatokan bagaimana hasil,tangkapan ersebutboleh disimpan dulam tempohvang lehih lama.Jaw ap an anda hendakluh mengan dungi pe kar a pe kar a lse i kut

I ProblemstatementPemvulaail masalah t markl. State he methods and explain how eachmethodcan make the catch kept for long lastingNyatakan kaedah-kaedah dan terangkan l>aguimonr setiop kaedah holeh nenjaelikan hrxiltangkapan tahan lebih lana 14marksl. Choose he best method and explain your choicePilih kaedahterbaik dan terung,kttn ilihan anda {l narklt7 . (a) Explain two reasonswhy improperdisposalof plasticwastes ancausedheenvironmentalproblems.State wo proper ways to disposeof plastic wastes.Terangkandua sebab n engapapembuangan sisa pktstik1,ang klak sempurrn bolehmenyebabkanmasalah alam sekilar. Nyatakandua coro terbaik utrtuk nwmbuang sisaplastik.[4 marks]

ll-ihatsebelahSI.JLIT

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