2009 - Percubaan Pmr Sains(perak)- K2 Qa

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SIJLIT NO. KAD PENGENALAN ANGKA GILIRAN

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Science/ Sains Paper2/Kertas2 Ogos 2009 1% hours/ 1 jam 30 minit

PEPERIKSAANPERCUBAAN PENILAIAN MENENGAH RENDAII NEGERI PERAK 2009 SCIENCE SAINS Paper 2 Kertas2 I how 30 minutes 1 jam 30 minit

DO NOT OPEN THE QUESTIONPAPER UNTIL YOUARE TOLD TO DO SO JANGAN BUKA KERTASSOALAN INI SEHINGGADIBERITAHU 1. Writg IC AND INDEX NUMBER iN the spacesFovided. Tuliskan NO KAD PENGENALAN DAN ANGKA GILIRAN pada ruqhg yang disediakan.

Section Bahagiqn

I 2

2. This paperis bilingual. Kertas soalan disediakan dalam dwibahasa. 3. Questionin English are followed by translationin BahasaMelalu. Soalan dalam bahasa Jnggeris mendahuluisoalanyang sepadandalam bahasaMelayu. 4. Candidatesis required to read the informationon page2, Cqlon dikehend.akimembacamaklumat di halamqn2

Marks Questioo Full Ma*s Soalan MarkahPenuhMarkah 6

'7

3

6

4

7

5

7

6

'l

7

8

8

l2

Totalmarks Jumlah

60

B

Kertes soalan ini mengandutrgi20 halaman bercetak

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INT'ORMATIONFOR CANDIDATES ARAEAN ANTAK CALON l.

This questionpaperconsistsof two sections: SectionA and SectionB Kertas soqlan ini mengandungidua bahagian : Bahagian A dan Bahagian B

2.

Write your answerin the spaceprovidedin tlrc questionpaper Tulisjowqpqn andq dslam ruang yang disediakandalam kertas soqlan.

3.

Showyour working,it may heb you to get ma* Tunjukkankerja mengira, ihi dapat membantuanda mendapatkanmarkah.

4.

If you wish to cancelany answer,neatlyuoss out the answer. Sekhanyaanda hendqkmembatalkansesuatujawqpqn, buat garisan di .rtasjqtaqpan itu.

5.

The diagrEmsin the questionprovidedare not drawnto scaleunlessstated. Rajahyang uengiringi soslan tidak ditukiskan mengikutskala kecuali dinyatakan.

6.

Mark allocatedfor eachquestionor part questionare shownin brackets. Markah yang diperuntukkan bagi setiap soqlqn atau cerqiqn soalan dituniukkon datan kurungqn.

7.

The time suggesied to completesectiotrA is 60 minutesand sectionB is 30 minutes Mqsa yang dicadangkanuntuk menjawabbahagianA ialah 60 minit dan bohsgian B iqtqh 30 minit.

8,

You may usenon-programrnablescientificcalculator Andq dibenarkanmenggunakankalkulqtor sqinti/ik yang tidqk boleh diprogam.

9.

Handin all your answersheetsat the end of the examination. Serahsemuakefiqsjawapan di akh pepe ksaan.

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55n SectionA Bahagisn A

For Exqminer3 Use

[ 40 marks] [ 40 markah] Answerall quesions Jqwqb semua soqlsn

1.

DiagrarnI sltowstie ararg€mentof particlesin substances B Q andR Rajqh1 mewtnjukkan susunanzarqh-zqrahbahffi P, Q dqn R.

ooo

3fo P

::.:i.b4 ?

a

Diagram1 RajahI

[3 nad$] [3 na*ah]

(a) Name0le t}?es of substances showl in Diagram1 by usingthe following words, Namakanjenis bahanyang ditunjuk*an pqds Rajqh I denganmenggunakan Derkatqanbe kut. Elqnent

Unsur

Compound Sebatian

Mixhrle Campuran

mixh[e components . O) Stateonemethodto separat€ Nystqktn satu kaedahmemisahkan komponendalamcampurqn.

I mark] narkah] [1

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4 Draw lircs io matchsubstanc€s R with its examples, Lubis garisan untuk memadankqtbahan R dengancontoh - contohnyq. Exsmples Contoh-contoh Ammonia ,,'\ v Ammonia

"

Gold Emas

Water 1.') ' Ait

n Air " udoro

[2 marl<s] [2 markahJ

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SULM 2.

Dia$ui2.1shows animalsJ, K and L with differentt?es of suppof system. For Rajah 2.1 menunjukkanhaiwan J, K dan L yang uempunyqijenis sistem sokangan Examiners Use yang berlainan.

J

K

L

Diagram2.1 Rajah2.1 (a)

(i) Name any two t?es of skeletonsof animalsJ, K and L in Diagram2.1 uslng trc followingwords Namakanmana-manodua jehis rungko haiwah J, K dan L dalam pe*ataqn berikut rcjah 2.1 menggunakah Endoskeleton Endoskaleton

Exoskeleton Elcsoskeleton

Hydrostaticskeleton Rangko hidrostatik

[2 markah] [2 marl,,ah] (ii) Give anotherexampleof an animalthat hasthe samesuppofisystemas: Berikdhsatu contohhairran laih yahg mempunyaisistemsokohganyang Mma seperti: K

L [2 marlc] [2 narkah]

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Basedon Diagram2,2, choosetwo animalswhich have sametlpe of skeletonas animalJ in diagram2.1. Mark (X) in the box for the animals Berdasarkanrajah 2.2, pilih dua hsiwan ysng mempunyaisistem rangkayang sama denganhqiran J sepefii dalam rajah 2.1. Tandakan($ dalam kotak bagi haiwan-haiwantetsebut.

Diagrallr2.2 Rajah2.2

[2 marl(s] [2 narkah] (c) Diagam 2.3 showsa snail. Rajah 2.3 menu/iukkansiput, Structue M Struktut M

Diagram2.3 Rajah2.3 Statethe functionof struchneM Nyatakan satufuhgsi sttuktur M

[1 mark] 1 narl,.ah] [

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SULIT 3.

Dagmm 3 slrowspart of the humandigestiveslstem, Gambarcjah 3 menunjukkahbahagian sistempenghadamanmanusia.

For Exqminer3 Use

Diagram: Rajah 3 (aJ Namethe paxtlabelledP and p

Namakanbahagian berlabel p dan e p

Q :............,..,.,.......,. [2 marks] [2 ma*ah] (b)

What is the filncrionof Q? Apakahfungsi organ Q?

fl markl [1 markahJ lcJ

Whatis the fmction of Villi on the irurersurfaceofp? Apakahfungsi vilus di permukaan dalam p?

[1 mark] [1 narkah] (d)

Narnetwo tytr'€sof food which canbe absorbedthrouehthe villi. Notuakan2 jenis makananyang boleh diserap nelitui vilus? (i)

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4.

Diagnm 4.1 showspart of the electricaltansmissionanddistxibutionsystem. Rajqh 4.1 menunjukknnsebahagiandaripqclasistempenghqntarundan pengagihan kuasa elektrik.

Diagram4.1 Raiah 4 1 (a)

Identifythe componentiabelled Kenqlpastikomponenberlabel

P:

"

i;;;ki

ft natkahl Qr

(b)

[1 mark] narkahl fi

Diagram4.2 showsa simpletansformerwhich is madeof two coils of wire wapped aroundan iron core. ringkqsdipelbu^l daripadadua Rajah 4.2 menunjukkan sebuahtransformet' gelungandawai wayar pada sat teras besi.

Input voltage

Dragfal'r,4.2 Rajah4.2

(t

Namecoil X NamakangegelungX

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G)Statetlle tlpe of t"ansfomerin Diagram4.2

For E)eminel 3 Use

Nyatqkanjenis transformer sepefii dalam rcjah 4,2

4OXii) [1 mark] [I markah] [ii) Statethe fimction of the tcnsformerin Diaoam 4.2 Nyatakanlungsi trandorner pada Rajai 4.2

tl

I--

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I maxk] narkah] [1 (iv) Dnw a symbolof a aa]|sformerin the box below Lubiskansimbol transfomer dalam petak di bowah

I I mark] [1 narkah] (v) Statethe t,?e of cunentFoducedfiom the ha.nsformer Nyqtakanjenis a/us yang tefiqsil dqripada trunsfurmer

[1 mark] [] narkahl

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5.

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Diagram5 showsan expedmentcanied out to showthat carbondioxide is neededfor photos).nthesis.Both plants A and B are kept in the dark for two days before the expedment.Then it wasplacedunderthe sm for threehows. Rejeh 5 menuhjukkctnsatu eLsperimendijalankan untuk menunjukkankarbon dioksidq diperlukan untuk fotosintesis. Sebelumel+sperimenini dijalankan keduadua tumbuhan A dqn B diletakkan di tempst gelqp selqmq elua hari dan kemudiannyadiletqkkan di bowah sinar matahari selama tiga jam. The sun

\xl

.;^.,-s:. Bell je

Sodiumhydroxidesolution Larutan noIritn hidrc 16ide

PlantA TumbuhanA

PlantB TumbuhanB

Dagmm5 Rajah5 (al

Whatis thefimctionof sodiumhydroxide solution? Apqkshfungsi larutannatriumhidrol$ida? [l mark] narkahl []

o)

W}ly arc the plantskept in tlrc dark for h'vodaysbeforethe experiment? Kenapa sebelumelTperimen,tumbuhanitu disimpan di tempqtgelap selama dua hari?

[1 mark] fl narkahl (c)

Suggestone otherchemicalthat canrcplacesodiumhydroxidesolutionin tlis expenment. Cqdangkansatu bahon kirhia lain yang boleh menggantikanlarutan narium hidroksida bagi ekspefihen ini.

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(d) Whichplm sho|s theprescnc€ of sEah c tlrc erd ofthe experitn€d? Tunbuhn nnna*ah ,rwn{utran tet@ faii dalameksperineninlT

For F&nbwb Use 5(d)

11msrk1 ll nokahl (e) Giveqre reasonfor the anmnrin (O Berilen sotusebabuntukboglj6u'apananfu di (d)

tl

I f'l

tl ma*] fl noknhl Statctwo otlEr factorsthatatetr€ed€d f6 photosydFsis. Nyatakan&n falaor lain yang diperlukanuntukfotosintesis. (i)....................,..,.......

(ii).........,........,.........,.

-_."E;di [2 ntkah]

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Lthrt !€behb

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For Exqminer3 Use

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SIJLIT 6.

Diagram6 strowsa humankidney. Rajah 6 menunjukkansatu ginjal manusio.

Diagmm6 Rojah 6 (a)

(i) On Diagmm6, labelQ andR usingthe following words: perkataqn berikut Pada Rajah 6, labelkan Q dan R denganmenggunakan Cortex Kortexs

Pelvis Peleis

Medulla Meduls [2 mark] [2 markah]

(ii) Statethe firnctionof P Nyqtakqn satu fungsi P. [1 mark] narkahl [] (b)

Stateone excretoryproductwhich will be eliminatedtlrough P to the urinary bladder? Nyatakan satu bahanpetlamuhan yang aktn disingkirkan melalui P ke pundi kencing?

U markl [1 markah]

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(c) @ Statetheditrerence between orebloodin bloodvesselX andY Nystqlqnsatuperbezaanantan darahMam salur daruhX dan salur dsrqh Y Blood vellel X S a I w d a r u hX

For Erqminerb Use

BloodvesselY Sslur darah Y

I ma*] [1 narkah]

CDExplainyourarsw€rin (c)(i) jqwaryn andadi (c)(i) Terungkon

Il madq nq*ahJ F Stateanotheroxq€toryorganin humanbody. Nyatqkan$qtuorganperh.Muhanyang lqin [1 mark] fl narkahJ

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SectionB Bqhagian B

For Examinet's Use

[20 marks] [2a markah] Answerall questions J6rab semuqso^lan

7.

Diagram7 sholrs a picturesof animalsJ, K, L, M andN gqnbar haiwan J, K, L, M dan N Rajqh 7 menunjulr+,an

Diagmm7 Rajah 7 (a)

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Statethe typesof fertilisationpracticedby any four of animalsJ, K, L, M andN' Nyatakanjenis persenya\laanyong dilakukan oleh mqka'man1 empat haiwan J,KL,MdanN.

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(b) ClassifyanimalsJ, K, L, M andN in Diagram7 into two groupsbasedon their For Examlner's commoncharacterislics. Use Nametheanimalsbelo[gingto eachgroup. Kelasktn haiwan J, K L, M dan N pada RaJah7 kzpqdadua humpulan berdasarksn ciftl-cbi sepunya Namak4nhaia'an-haiwqndalomsetiaphtmpulqn. J,K, L, M,N

Type of fertilization Jenis Persenyal|aan

Namesof the animals Namacontohconlohhaiwan

[4 marks] 14nartahl

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8. For Examiner I Use

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An experimentis carriedout to investigatethe relalionshipbetweenthe massand the volumeof a liquid. Diagmm8 showsthe set-upof the apparatusfor the experiment. Satu eLsperimentelqh diialankan untuk menyiasot hubungan di ahtaru jisim dah isipadu cecaix Rajah 8 menunjukkansebuahradas untuk elgperimentersebut Beaker Bikar

I-everbalance

Diagram8 Raiah8 An empty250 cm! beakeris weighedusinga lever balance20 cmr ofa liquid is powed into the beaker.The beakerwith *te liquid is reweighed. The procedureis repeatedusingdifferentvolumesof the liquid; 30cm3,40 cm3and 50 cm3. neracatuas. Sebuahbikar kosongyang berukurqn250 cm3ditimbangmenggunakan Langkah ini diulang berathyq. 20 cm! cecqtu diluang ke dalan bikar dan diukur isipa&, cecairyang betbezaiaitu, 30 cmr , 10 cmi , dan 50 cmr menggunakan (a)

(i) Recoldthe massof the beakerswith differentvolumesof the liquid. jisim bikat bersamaisipaducecai/yang belbeza Rekodkqh Mass of emptybeaker Jisim bikar kosong

Reading= 5l g Bacaan= 51 g

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Ivhssof bcaker+ 20 cm3of the liquid Jitin biko + 20 qf cecair

Rcading= 60 g Bacaan= 60 g Massof beaker+ 30 cmt of tln liquid Jisin bikar + 30 cmt cecqir

Rcoding= --.---..........s Bacsan = ..-- -.. ..- .-8

Msssof bcalcr+ /() cm, of thc liquid Jlsln blkar + 40 cnt' cecair

= .....................g Rcading Bocun = .....-, -..,....-g

[2 rrats] [2 narlahJ Masaof b€aka+ 50 cm! of ihe liquid Jtsin bikar + 50 crrf cecair

- 84g R€ading Bacaq - 849

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(ii) CompleteTable8 by recordingthe corresponding massof the difer€nt volumes of tlle liquid. jumlah jisim berdasarkansoalan LengkapkanJadual 8 denganmerekodkan

For ExominerI Use

di q) (r.

Volumeof liquid(cnrl) Isipaducecair(cmt)

20

Massof liquid (g) Jisim ceca (g)

9

30

40

50 33

Table8 Jadual 8

8(axii)

n I t-l

[2 marks] [2 narkah] (b)

Statethe following vadablesin the experiment. Nyatakan setiappembolehubahdqlqm elaperimenberikut. Manipulatedvariable Pembolehubah dimanipulasi Responding variable PemboIehubah bergerakbalas Contolled variable PemboIehubah dimalarkan

[3 ms s] [3 marksh] (c)

Wlut is the hlpothesisfor the experiment? Apakah hipotesis eksperimen?

[1 mark] [] narkahl

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(d) For lhis palt of the qrstion rue the graphpaperprovidedon page20. Untukceraiansoqlanini, gunakankertasgraf yang disedialangmda hslartan20. Baxd on Table8, dmwa graphof massof liquidagainstvohuneof liquid Berdasarkan Jaduql8, lqkafign grafjisin melawanisipaducec6it,

For ExqminerI Use

[2 !na*] narkah] [2 (e) Fron thegraplr,statetherelationship baweenthemassandorevolumeof the liqud graf, nyatakanhubwganantarcjhim dan isipd cecair Berdosarlwn

lt nurkl p narkahl (D UsinethegBpttpr€dictthemassof theliquid*fien itsvolumeis 25cm?. Menggunakangral rumalkanjisim cecair apabila itipadu beruhlrs\ 25 cmt.

ll markl ft narkahl

END OF QIJESTIONPAPER KERTASSOAUIN TAMAT

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20

For Exqminerb Use

Graph for Question8(d) Gruf untuk Soalan 8(d)

30

25

20

15

20

30

40

Volumeof liquid (cz) Isipadu cecair (cmi)

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JABATANPELAJARANPERAK PEPERIKSAAN PERCUBAANPMR 2OO9 SKEMAJAWAPAN SCIENCEKERTAS2 QUESTION NUMBER

SCHEME

MARKS

TOTAI MARKS

l. (a) P : Element

Q: Mixtu.c R: Compound

3 I

(b) Distillation// Evapontion// Filtration//

Usingmagnet// Sieving// Extraction (c)

2

6

Total

2 . ( a X i ) J : Hydrostatic skeleton K : Endoskeleton(internal skeleton) (externalskeleton) L : Exoskeleton ( ii) (b)

(c)

K :Cat// dog/(anysuitableanswer) L : Coachroach // housefly / (anysuitableanswer)

E E

2 2

E 2 l

To protectthebody// suppoftthebody Total

3

2 correct 2 I correct I

(a) P : smallintestine

Q i largeintestine

'l

7 2

(b) Reabsorbs waterintothebloodstream

1

(c) To increase therateofabsorption ofdigestedfood

I

in the intestine // increase thesurfaceareafor the absorption of theproductsof digestion (d)

i : Glucose ii. aminoacid iii fattvacidandelicerol Total

2 6

4

(4,

(b)

P : Transformer station// stepup transformef Q : switchzone// stepdownt.ansformer (i) (iD (iiD

: Primarycoil : Stepup transformer : Raisingthevoltageofaltemating current/ lncrease theoutputvoltage

2

3

(iv)

i

5

(v). alternating cunent

I

7

(a)

Total To absorbcarbondioxide

(b)

Removestarchin the leave

l

(c)

Poltassium hydroxide solution

I

(d)

PlantB

I

lel

Plantcando photosynthesis because carbon dioxideis present

I

(i) (ii) Total

Light // sunlight Chloroohvll/ water

l

2 7

6

(a)

(b)

(i) Q: Cortex R : Medulla

I I

2

(ii) P ( Ureter) channelurinefromthekidney to the udnarybladder

I

I

Mineralsalt// water// urea

(c)

Blood Blood VesselY VesselX Canies Carries oxygenateddeoxygenated blood blood

(d)

I

(ii) Oxygenis usedup by thekidney//

I

Skin// lungs

I 7

Total

7

(a) J lnternalFertilisation K IntemalFertilisatioh L IntemalFenilisation M ExtemalFeftilisation N ExternalFenilisation

I I I I

4

l+l

2

l+l

2

J,K,L,M,N (b)

Tortoise//J, Dolphin/,4( Eagle/bird//L

Total

Fish//M Frog// N

8

8

(4,

Reading(i) : 68.0 Reading(ii) : 76.0

2

(iD Volumeofliquid (cm') Isipadu cecair ( cm') Massof liquid(g) Jisitn cecair ( cm") (b)

(c)

(d)

(e)

(f)

30

40

r7,0 25,0

I+l

2

variable Volumeof liquid Manipulated variable Responding

Massof liquid

Controlledvariabl€

Typeofliquid// the typeof b€aker// the sizeof beaker

3

whenthevolumeof Themassofa liquidincfeases the liquid increasev/ wh€nthevolumeof Themassofa liquiddecrcases theliquid decreases

I

Referto the Sraph Shouldhaveat least3 points Shoulddrawa straightline The massofa liquidincreases whenthevolumeof the liquid increases// The massofa liquiddecreases whenthevolumcof the liquid decreas€s 1 3 . 0g

2

I

I

I

1

total

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Total

60

Massof liquid (g) Jisim c€cairG)

35

30

25

20

l5

l0

a)

10

20

30

40

Volumeof liquid (cm3) Isipaducecair(cm3)

50