SULITt'tt/2SciencePaper2 NAMA:. TINGKATAN

Jan / Feb20092 Yz hours

JABATAN PELAJARAN TERENGGANU

UJIAN PENGESANAN TOVSIJIL PELAJARAN MALAYSIA 2OO9

SCIENCE

Paper 2

Two Hours and Thirty Minutes

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DO NOT OPEN THIS TEST PAPER UNTIL YOU ARE TOLD TO DO SO

I This question paper consists ofthree sections: Section ASection B and Section C

2 Answer all questions in Section A and Section B.l[rrite your answer.s for Section A ancl Section B clearlyin the space provided on the question paper.

3 For Section C, answer Question l0 and choose .tnother

Question 11 or Question 12. Write yottr answer.forSection C on the lined pages provided at the end ofthis paper. Answer should be clear and logical.

4 The mqrl<s allocatedfor each sub-part of a questionare shown in brockets.

5 The time suggested to complele Section A is 60 minutes,Section B is 50 minutes and Section C is 10 rninutes.

6 You are qllowed to answer the question in Englishor Bahasa Melayu.

For Examiner's aseSect ion Question Marks

A

I2aJ

4

B

3

6789

C101 l12

Total

This question paper consists of 16 printed pages

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ST]LIT 2

Section A[20 marks)

Answer all questions in this section.Jawab semua soelen

The time sug,gested to answer this section is 60 minutesMasa yang dicadangkan untuk bahagian ini ialah 6O minit

Diagrarn I shows an experiment to study the electrical condu.ctivity for substance P

Rajah t merutnjukkan eksperimen untuk mengkaji kekonduksian elektrik bahan P

Diagram IRajah I

The results of the experiment are recorded in Table IKeputusan yang diperoleh dicatat dalam Jadtnl I

T a b l e l l J a d u a l lBased on the above experiment, complete the Table IBerdasarkan eksperimen di atas, lengkapkan Jadual I

State one inference for this experimentNyatakan satu inferens bagi eksperimen ini

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I mark)

(a)

(b)

Dry cellSel kering

Carbon electrodesElektrod karbon

Solid substance PPepejal bahan P

Dry cellSel kering

Molten substance PLeburan bahan P

Condition of P substanceKeadaan Bahan P

Ammeter reading /mABacaan antnrcter /mA

Solid (Pepejal) 0

Molten (Leburan)

f l nwrkl(c) State the variables in this experiment

Nyatakan pembolehubah dalam eksperimen ini.(i) Manipulatedvariable

P e mb ol e hubah dimanipul as i

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f2 marks)

(d)

(i i) Responding variablePembolehubah berserak balas :

What is the operational definition for molten substance P?Apakah definisi seccrra operasi bugi leburan bahan P?

Diagram 2 shows the experiment to study thedistance.Rctjah 2 menunjukkon sotu eksperimen untuk

fokusnya

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relationship betrveen the thickness of the lens and its focal

mengkaji lnrbtmgan antora ketebalan kanta dengan jarak

Lens A (Kanta A)

(a)

Lens B (Kanta B)

Diagram 2Rajah 2

Measure and write down the focal distance of lens BUkur dan tulis jarakfokus bagi kmta B

(b) Predict the focal distance of a convex lens which is thinner than lens BRatnalkan jarak focus bagi satu kqnta cembung yang lebih nipis dari kanta B

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II mark)

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[2 marks]

(c) State the following variables:

Nyatakan pemboleh ubah berikut:

(i) ManipulatedvariableP emb ol e h ub ah dimaniP ul as i :

(ii) Responding variable:P emboleh ubah be r ge r akbalas :

(d) State the hypothesis for the above experiment.Nyatakun hipotesis bagi eksperimen di atas'

Diagram 3 shows an experiment to study endothermic reaction'

naiin I menunjukkan elcsperimen untuk mengkaji tindak balas endotermik.

Diagram 3Rajah 3

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3 0 0 c

260C

Ammonium nitrateAmmonium nitrat

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The result is recorded in Table 3.Keputusan direkodkan dalam Jadual 3.

Table 3Jadual 3

(a) Complete Table 3.Lengkapkan Jadual 3.

(b) Write one inference for the above experiment'

Tuliskan satu inferens bagi eksperimen di atas'

SubstanceBahan

TemperatureSuhu (C)

WaterAir

30

Water + ammonium nitrateAir + ammotiuttt nitrat

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(c) State the variables in this experiment.

Nyatakan pemboleh ttblh dalam eksperimert ini'

( i) Manipulated variable :

P embole h ubah dimanip ulas i

(ii) Responding variable :

Pemboleh ubah bergerak balas

(d) State the operational definition of endothermic reaction.

Nyatakan deJinisi secars operasi bagi tindak balas endotermik'

[2 marks]

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4 A student conducted an experiment to study the effect of temperature on the growth of bacteria. Theresult of the experiment is shown in Table 4.Seorang pelajar telah menjalankan eksperimen untuk mengkaji kesan suhu ke atas pertumbuhanbakteria. Keputusan el<sperimen ditunjukkan dalam Jadual 4.

Temperature ('C)suhu

Number of bacterial colony after 48 hours.Bilansan koloni bakteria seleoas 48 iam

0 015 J

25 735 1 l45 8

Table 4Jadual 4

Using the data in Table 4, draw a graph of the number of bacteria colony against temperature.Menggunakan data dalam Jadual 4, lukiskan graf bilangan koloni bakteria melawan suhu

(a)

Numberof bacteriaColony.Bilan[an 12

kolonibakteria

(b) (i)

Temperature / o CSuhu /oC

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Based on the graph, state the optimum temperature for bacterial growth.Berdasarkan graf, nyatakan suhu optimum bagi pertumbuhan bakteria

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(ii) Predict the number of bacteria colony at 60 0 C.Ramalkan bilangan koloni bakteria pada suhu 600C

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(c)

[2 marks]

What is relationship between the number of bacteria colony and temperaturebetween d c. - sf cApakah hubungan antara bilangan koloni bakteria dan suhu di antara d C - Sf C

II mark)

Section B[30 marks]

Answer all questions in this section.The time suggested to answer this section is 50 minutes.

Diagram 5 shows organs and neurones that involved while reading a story book.Rajah 5 menunjukkan beberapa organ dan neuron yang terlibat semasa membaca buku cerita.

The pathway of impulseMenunjukkan arah laluan impuls

Diagram 5Rajah 5

Name neurone X, neurone Y and organ Zinthe boxes provided in Diagram 5.Namakan neuron X, neuron Y dan organ Z dalam kotak pada Rajah 5.

State the function of neurone X.Ny at akan fung si ne uron X..

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The action above occurs in human body.Gerak balas di atas berlaku dalom badan manusia.

(i) What type is this action?Apakah jenis tindakan tersebut?

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(ii) Give another example for action (c)(i)IJerikan satu contoh lain bagi tindakan (c)(i)

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[2 nrurks)

Diagrarn 5 shows a scheme of marriage between a man with blue iris and a women with black iris.R'a;ah 5 menunjrtkkan skema perkahwi,nan seorang lelaki yr.mg iris mata berwann birtt dertgart tt,artitayrtn.g iri.; mata benvat na hilam.

Fsther rvith blue irisRaPtq lrt mata biru

Mother wittr black irisIbtt iris nmta hitant

Diagram 6Rajah 6

If the black iris is dominan and the blue iris is recessive,Jika sfat iris mata hitam adalah dominan dan sifat iris ntcilct birtr arlalalt resesif.

(a) State the colour ofiris of S and VNyatakan warna iris matu bagi anak S dan V

(i) s

(ii) v

[2 nnrks]

what is the propotion ro have a child with black iris to a child with blue iris?Berapakah nisbah untuk mendapatkan anak yang warrta iris nmta hitam berbanding dertganiris mata biru?

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(b)

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(c)

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State process P and R.Nantokan proses P dqn R

( i ) P

( i i ) R :l'2 marksl

(d) State the type of variation in this question.Namakan ienis variasi dalam soelan ini.

Diagranr 7 shorvs silver refining using electrolysisRajolt 7 tnenwtjukkan proses pemdenan argentuilt secora elektrolisis.

Diagram 7RajahT

(a) On diagram 7, name X, Y and Z by using the following information.Poda Rajalt 7, namaken X,Y dan Z dengan menggwmkan maklumat be ikut;

Pure silver / Argentum tulenImpure sllver /Argentum tak tulenSilver (II) nitrate solution /Larutan argentum(ll) nitrat

State the energy changes in this electrolysis process.Nyatakart perubahon renagayang berlaku dalam proses eiektrolisis.

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[3 marks)

(b)

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SULIT 10

(c) Why metal X becomes thinner in the electrolysis process?Mengapakah logam X menjadi semakin nipis semasa proses elektrolisis?

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] markl(d) State one use of electrolysis other than metal refining.

Nyatakan satu kegunaan elektrolisis selain dari peru.ilenan Iogam.

U marklDiagram 8 shows how radioactive rays penetrate through different materials.Rajah 8 menunjukkan penembusan sinar radioaktif melalui bahan yang berbeza.

Paper Aluminium LeadKertas Aluminium plumbum

Radioactive materialBahan radioaktif

Diagram 8Rajah 8

What are radiations X,Y andZ?Apakah sinaran X, Y dan Z?

Y : . . . . . . . . . . . . . . . . . . . . .

Z :

(b) What is the best way to store radioactive substances?Apakah cara terbaik bagi menyimpan bahan radiooaktif?

(a)

[3 marks]

fi mark](c) (i) Which ray is the most dangerous?

S inar manakah yang paling me rbahaya ?

Explain your answerTerangkan jawapan anda

(ii)

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SULIT 11

9 Diagram g sholvs the arrangemcnt of atoms in steel, an example of an alloy.

Rajah 9 ntenunjukkun strsrutult atortr di dalam kclrtli, satu cortlcth aloi.-

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Atom X

Atom Iron(atom besi)

Diagram 9Rajalt 9

(a) What is an alloy?Apokah uloi ?

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Based on Diagram 9.Bertlosarkutt Rajult 9

( i ) Ident i f i 'atoru X :Kcttolprtsti atont X

(ii) Wlr1, is atorn X added t,r thc iron ntoms'lKettapra utont X rlitrrtnltilt prtrlu tftttnt-rttotn be si ?

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(c) State trro properties of stccl compared to lron.Nyruakon dua c:iri-ciri kt: lu!i berktnding dutgcut bcsi.

( i )

( i i )

(d) State one use of steel in industry.Nyatakan satu kegunaqn keluli di dalam industri

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Section C

[20 marks)

Answer Question l0 and either Question 11 or Question 12'Writeyour answers onpages 14 - 16

The time suSsested to answer this section is 40 minutes

Jawab Soalun l0 dan monalnana satu daripadc Soalan 1l atau Soalan 12.

Tuliskan jawapan anda di halannn 14-16Masa yang dicadangkan untuk menjatvab bahagian ini ialah 40 ninit.

Study the following statement;Kaj i p e rny at aan b e rikut,

When white light is shone on a primary coloured filter, a certain coloured light passes through'

Apabila cahaya putih menyinari penapis v)arnt primer, warna cahaya tertentlt boleh melaluinya

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(a)

(b)

Suggest a hypothesis to investigate the above statement.

Cadangkan satu hipotesis untuk menyiasat pentyataan di atas

Using a red filtdr, a blue filter, a green filter and other apparatus, describe an experiment to test

your hypothesis in (a) based on the following criteria;Meng[inakan penupis merah, penapis biru, penapis hijau dan alat radas lain, Terangkan suattt

eksperimen untuk mengtii hipotesis di (a) berdasarkan kriteria berikut;

Aim of the experiment-Tujuan eksper.imen

Identifi cation of variables.M engenalpasti pembolehbah

List of apparatus.Senarai alat redas

Procedure.Kaedah / Prosedur

Tabulation of data.Penjadualan data

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SUI,IT

11 (a)

(b)

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State two methods of purification. Describe each method.Nl,atakan dua kaedah penulenan. Terangkan setiap kaedah tersebut

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14 marks)

A studenr finds that the distilled water he kept in a beaker has accidentally put somc salt and

dissolve to form salt solution. Explain how to obtain pure water from the salt solution. Yourexplanation should include the following :Seorang pelajar mendapati air suling yang dia sinryan dalam bikar secara tak sengaia telahterletak dengan garam dan melarut membentuk larfian garam. Terangkun bagaimana untuk

mendapatkan air tttlin dari larutan garam tersebut. Penerangan anda mestilah mengandungiperkara berikut:

o Problem statementPenyataan masalah

r Name of the method usedNama kaedah yang digunakan

o Steps of the method usedLangkah-langkah yang perlu dilaktrkan dalam kaedah itu

(a) State one disease and one symptom caused by the following microorganisms.

Nyatakan satu penyakit dan satu gejala penyakit diseba.bkan mikroorganismu berikut

(i) BacteriaBakteria

(i i) FungiKulat [4 nnrl<s]

A group of officers from the Health Department were asked to control dengue fever in

resindential area.Explain how could they overcome this problem.

Sekumpulan pegawai dari Jabatan Kesihatan diarahkan untuk mengawal demam denggi di satu

kawasan perumahan.Huraikan bagaimana mereka dapat mengatasi masalah ini.Your answer should include the following :Jawapan anda hendaklah mengandungi perkara berikut :o Identify the problem

Mengenal pasti masalah

. Clarification of the problemPenjelasan masalah

o Suggest four methods to solve the problemCadangkan empat kaedah untuk menyelesaikan masalah itu

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END OF QUESTION PAPERKERTAS SOAIAN TAMAT

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