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    JABATAN PELAJARAN PERAK

    SOALAN LATIH TUBI BERFOKUS 2

    SPM 2011

    SCIENCE

    Paper 1

    One hour and fifteen minutes

    DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

    This question paper consists of 18 printed pages

    1511/1

    SOLAF 2Science

    2011Paper 1

    1 hours

    1511/1SULIT

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    1. Which of the following activity is controlled by proprioceptor?

    Antara berikut, aktiviti manakah dikawal oleh deria kinestesis?

    A drawing a scenery

    melukis gambar pemandangan

    B shooting a hunted deer

    menembak rusa yang diburu

    C walking on a log to cross a river

    meniti titian untuk menyeberangi sungai

    D pull a hand when touching hot object

    menarik tangan apabila tersentuh objek tajam

    2 Diagram1 shows an endocrine gland in human body

    Rajah 1 menunjukkan satu kelenjar endokrin dalam badan manusia.

    Diagram 1

    Rajah 1

    How the hormone secreted by gland P is transfered to the target cell?

    Bagaimanakah hormon yang dirembeskan oleh kelenjar P dipindahkan ke sel sasaran ?

    A through lymph vessel C through nervous system

    melalui salur limfa melalui sistem saraf

    B through blood vessel D through immune systems

    melalui salur darah melalui sistem keimunan

    3 The height of student A and student B are recorded in the Table1.

    Ketinggian pelajar A dan pelajar B direkodkan seperti dalam Jadual 1.

    StudentPelajar HeightKetinggian

    A 1.8 m

    B 2.3 m

    Table 1

    Jadual 1

    Gland P

    Kelenjar P

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    The average height of human is 1.7 m. Which gland secretes excess hormone in student B?

    Purata ketinggian manusia ialah 1.7 m. Kelenjar manakah yang merembeskan hormon

    berlebihan pada pelajar B?

    A Thyroid B Adrenal C Pituitary D Testis

    Tiroid Adrenal Pituitari Testis

    4 What is the function of medulla oblongata?

    Apakah fungsi medulla oblongata?

    A Controls the rate of heart beat

    Mengawal kadar denyutan jantung

    B Controls the size of pupils

    Mengawal saiz anak mata

    C Receive and interprete impuls

    Menerima dan mentafsirkan impuls

    D Control body balanceMengawal keseimbangan badan

    5 Which inherited disease is suffered by an individual that has 3 chromosomes at the 21st pair?

    Penyakit baka manakah yang dialami oleh seseorang yang mempunyai 3 kromosom pada

    pasangan ke 21?

    A Hemofilia C Sickle cell anaemia

    Hemofilia Anemia sel sabit

    B Colour blindness D Downs Syndrome

    Buta warna Sindrom Down

    6 Which of the following is true about non-identical twins?

    Antara berikut yang manakah benar tentang kembar tak seiras?

    A The zygote formed after fertilisation splits into two.

    Zigot yang terhasil selepas proses persenyawaan membahagi dua.

    B Two ova are fertilized by two sperms.

    Dua ovum disenyawakan oleh dua sperma.

    C Both foetuses share the same placenta.

    Kedua-dua fetus berkongsi plasenta yang sama

    D They always have the same gender.Jantina mereka sentiasa sama.

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    7 Diagram 2 shows a stage of mitosis.

    Rajah 2 menunjukkan satu peringkat mitosis.

    Diagram 2

    Rajah 2

    What will be the number of chromosomes in each daughter cell when the process of mitosis is

    complete?

    Berapakah bilangan kromosom dalam setiap sel anak setelah proses mitosis selesai?

    A Six B Four C Three D Twelve

    Enam Empat Tiga Dua belas

    8 Diagram 3 shows the inheritance of colour blindness.Rajah 3 menunjukkan pewarisan bagi buta warna

    Diagram 3

    Colour blindness is caused by the mutated recessive gene, X b. Which offspring is a colourblindness carrier?

    Buta warna disebabkan oleh gen resesif termutasi, Xb. Anak yang manakah merupakan pembawa

    gen buta warna?

    A R B Q C P D S

    Xb

    Y XXb

    Xb

    Y X Xb

    P Q R S

    Colour blind father

    (Bapa buta warna)

    Carrier mother

    (Ibu pembawa)

    X

    Gamete

    (Gamet)

    Offspring

    (Anak)

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    9 The elements in a periodic table are arranged according to the

    Unsur-unsur didalam Jadual Berkala disusun mengikut

    A nucleon number C number of neutrons

    nombor nukleon bilangan neutron

    B proton number D number of isotopes

    nombor proton bilangan isotop

    10 Based on Table 2, which elements are isotopes?

    Berdasarkan Jadual 2, manakah unsur-unsur yang merupakan isotop?

    Elements

    Unsur

    Nucleon number

    Nombor nukleon

    Number of protons

    Bilangan proton

    Number of neutron

    Bilangan neutron

    P 12 6 6

    Q 13 6 7

    R 14 7 7

    S 16 8 8

    Table 2

    Jadual 2

    A Q and R B R and S C P and S D P and Q

    11 Pure water can be produced from polluted water by

    Air tulen boleh dihasilkan daripada air yang tercemar dengan cara

    A evaporation B distillation C boiling D crystallization

    penyejatan penyulingan pendidihan penghabluran

    12 Which of the following difference between metals and non-metals is correct?

    Antara perbezaan logam dengan bukan logam yang berikut, manakah yang betul?

    Metals

    LogamNon-metals

    Bukan logam

    A Non-ductileTidak mulur

    DuctileMulur

    B Dull surface

    Permukaan pudar

    Shiny surface

    Permukaan berkilat

    C Low melting pointsTakat lebur yang rendah

    High melting pointsTakat lebufr yang tinggi

    D Good conductors

    Konduktor yang baik

    Poor conductors

    Konduktor yang lemah

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    13 Which of the following is a physical change?

    Manakah antara berikut adalah perubahan fizik?

    A Heating of zinc carbonate

    Pemanasan zink karbonat

    B. Boiling of water

    Pendidihan air

    C Heating of iron and sulphur

    Pemanasan besi dan sulfur

    D Putting a piece of calcium into water

    Meletakkan secebis kalsium ke dalam air

    14 Diagram 4 shows an experiment to study the heat change in a chemical reaction.

    Rajah 4 menunjukkan satu eksperimen untuk mengkaji perubahan haba dalam satu tindak balas

    kimia.

    What type of reaction is involved?

    Apakah jenis tindak balas yang terlibat?

    A Neutralization B Endothermic C Exothermic D Decomposition

    Peneutralan Endotermik Eksotermik Penguraian

    15 The following information shows about metals P, Q and R. Maklumat berikut tentang logam P, Q dan R

    Metal P reacts vigorously with cold waterLogam P bertindakbalas cergas dengan air sejuk

    Metal Q does not reacts with cold water or steamLogam Q tidak bertindakbalas dengan air sejuk atau stim

    Metal R reacts with steam but not with cold water

    Logam R bertindakbalas dengan stim tapi tidak dengan air sejuk

    Diagram 4

    Rajah 4

    Beginning of

    the experiment.

    Permulaan

    eksperimen

    End of theexperiment.

    Akhir eksperimen

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    Which is the correct ascending order of reactivity of matels P, Q and R ?

    Urutan menaik yang manakah betul tentang kereaktifan logam P, Q dan R?

    A Q, R, P B P, Q, R C R, Q, P D Q, P, R

    16 Diagram 5 shows an electroplating of an iron ring.

    Rajah 5 menunjukkan proses penyaduran cincin besi

    What is solution X ?

    Apakah larutan X?

    A Aluminium nitrate C Silver nitrate

    Aluminium nitrat Argentum nitrat

    B Iron (II) sulphate D Copper (II) sulphate

    Ferum(II) sulfat Kuprum (II) sulfat

    17 The following information shows the properties of a radioactive ray P.Maklumat berikut menunjukkan sifat-sifat satu sinar radioaktifP.

    What is P?

    Apakah P?

    A Alpha particles B Beta particles C Gamma radiation D Neutron

    Zarah alfa Zarah beta Sinar gamma Neutron

    negatively chargedbercas negative

    attracted by positive chargesditarik oleh cas-cas positif

    can be blocked by an aluminium

    boleh dihentikan oleh sekeping aluminium

    Iron ring

    cincin besi

    Silver

    argentum

    Solution X

    larutan XDiagram 5Rajah 5

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    18 Which of the following is caused by radioactive radiation?

    Manakah antara yang berikut disebabkan oleh sinaran radioaktif?

    A Greenhouse effect C Global warming

    Kesan rumah hijau Pemanasan global

    B Acid rain D Mutation of living cells

    Hujan asid Mutasi pada sel-sel hidupan

    19 Diagram 6 shows a nuclear reaction.

    Rajah 6 menunjukkan satu tindakbalas nuklear.

    What is particle X?

    Apakah zarah X?

    A Proton B Electron C Nucleon D Neutron

    Proton Elektron Nukleon Neutron

    20 Which of the following materials is mostly used to keep the radioactive substances?

    Antara bahan-bahan berikut, yang manakah paling banyak digunakan untuk menyimpan bahan

    radioaktif?

    A Lead B Aluminium C Carbon D Zinc

    Plumbum Aluminium Karbon Zink

    21 Diagram 7 shows an image formed by a convex lens.

    Rajah 7 menunjukkan imej yang dibentuk oleh sebuah kanta cembung.

    SCIENCEConvex lens

    Kanta cembung

    Diagram 7Rajah 7

    X

    X

    Heavy nucleus

    Nukleus berat

    Light nucleus

    Nukleus rin an

    Light nucleus

    Nukleus rin an

    Diagram 6

    Rajah 6

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    Where is the position of the object?

    Di manakah kedudukan objek tersebut?

    A Twice the focal length C Less than the focal length

    Dua kali panjang fokus Kurang daripada panjang fokus

    B The same as the focal length D More than twice the focal length

    ama dengan panjang fokus Lebih daripada dua kali panjang fokus

    22 Which of the following is an effect of light dispersion?

    Antara yang berikut, yang manakah kesan penyebaran cahaya?

    A The formation of a rainbow C The formation of white light

    Pembentukan pelangi Pembentukan cahaya putih

    B The blue sky D The red sky

    Kebiruan langit Kemerahan langit

    23 Diagram 8 shows the addition of coloured light.

    Rajah 8 menunjukkan penambahan cahaya berwarna.

    What is the colour seen at the region X?

    Apakah warna yang kelihatan di kawasan X?

    A Magenta B Yellow C Cyan D White

    Magenta Kuning Sian Putih

    24 If a white shirt is to be turned to an orange colour, which colour dyes must be used?

    Jika baju putih hendak dijadikan warna jingga, apakah pencelup-pencelup warna yang mesti

    digunakan?

    A Blue and green C Red and blue Biru dan hijau Merah dan biru

    B Green and red D Yellow and red

    Hijau dan merah Kuning dan merah

    Blue

    Biru

    Green

    Hijau

    Red

    MerahX

    Diagram 8Rajah 8

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    25 Diagram 9 shows the arrangement of atoms in a substance.

    Rajah 9 menunjukkan susunan atom dalam sesuatu bahan

    Which of the following substance has the same arrangement of atoms as in figure ?

    Bahan yang manakah mempunyai susunan atom yang sama seperti rajah ?

    A steel B iron C copper D aluminiumkeluli besi kuprum aluminium

    26 The following information shows the equation for the production of urea.

    Maklumat yang berikut menunjukkan persamaan untuk menghasilkan baja urea.

    What is gas Eand condition F?Apakah gas E dan keadaan F?

    Gas E Condition F

    Keadaan F

    A Carbon dioxide 200C, 500 atm

    Karbon dioksida

    B Carbon dioxide 200C, 200 atm

    Karbon dioksida

    C Nitrogen 200C, 200 atm

    Nitrogen

    D Nitrogen 200oC, 500 atm

    Nitrogen

    Condition F

    Gas E + Ammonia Urea

    Gas E Ammonia Keadaan F Urea

    Pure atom

    Atom tulen

    Foreign atom

    Atom asing

    Diagram 9

    Rajah 9

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    27 The information shows a word equation of Haber process.

    Maklumat menunjukkan persamaan perkataan bagi proses Haber

    What happens when the temperature decreased to 200oC?

    Apakah yang berlaku apabila suhu diturunkan kepada 200oC?

    A More ammonia is produced C The reaction becomes faster

    Lebih banyak ammonia dihasilkan Tindakbalas menjadi cepat

    B Solid ammonia is produced D The reaction becomes slow

    Pepejal ammonia terhasil Tindak balas menjadi lambat

    28 What is the effect of toxic waste disposal from chemical industries to the environment?

    Apakah kesan pelupusan bahan sisa toksik dari industri kimia terhadap alam sekitar?

    A Global temperature to increase

    Peningkatan suhu dunia

    B Thinning of ozone layer

    Penipisan lapisan ozon

    C Destruction of aquatic life

    Kemusnahan hidupan akuatik

    D Disruption of photosynthesis in green plantsGangguan ke atas fotosintesis pada tumbuhan hijau

    29 Which of the following is an example of fungi?Yang manakah antara berikut ialah contoh kulat?

    A C

    B D

    Nitrogen

    Nitrogen

    Hydrogen

    Hidrogen

    Ammonia

    Ammonia

    +

    200 atm,450

    oC 500

    oC

    Iron filling

    Serbuk besi

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    30 Which of the following disease can be treated using antibiotics?

    Antara penyakit berikut, yang manakah boleh dirawat menggunakan antibiotik?

    A AIDS B dengue fever C cholera D hepatitis B

    Aids demam denggi taun hepatitis B

    31 Diagram 10 shows a type of microorganisms. What is the most suitable temperature formicrorganims growth?

    Rajah 10 menunjukkan sejenis mikroorgansima. Suhu manakah yang paling sesuai untuk

    mikroorganisma itu membiak?

    A 10oC B 25

    oC C 35

    oC D 37

    oC

    32 Diagram 11 shows microorganisms J, K, L and M.

    Rajah 11 menunjukkan mikroorganisma J, K, L dan M.

    Which classification is correct?

    Manakah pengelasan yang betul?

    AlgaeAlga

    ProtozoaProtozoa

    J and MJ dan M

    K and LK dan L

    J and LJ dan L

    K and MK dan M

    K and LK dan L

    J and MJ dan M

    J and KJ dan K

    M and LM dan L

    Sporangium

    Sporangium

    Diagram 10Rajah 10

    Diagram 11

    Rajah 11

    A

    B

    C

    D

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    33 The following information shows the characteristics of the modern cure

    Maklumat berikut adalah menunjukkan ciri-ciri rawatan moden

    Chemical compounds

    Sebatian kimia

    Can be injectedBoleh disuntik

    Examples: Tetracyclines to treat cholera

    Contoh : tetrasiklin untuk merawat taun

    Which cure has this characteristics?

    Rawatan manakah yang mempunyai ciri-ciri tersebut?

    A antiviral B antifungal C antibiotic D antiserumantiviral antikulat antibiotic antiserum

    34 The diagram 12 shows the roots of a leguminous plant.

    Rajah 21 menunjukkan akar tumbuhan kekacang.

    What type of bacteria is found in S?

    Apakah jenis bakteria yang terdapat dalam S?

    A Nitrogen fixing bacteria B Nitrifying bacteria

    Bakteria pengikat nitrogen. Bakteria nitrifikasi

    C Denitrifying bacteria D Putrefying bacteria

    Bakteria pendenitritan Bakteria pereput

    Diagram 12

    Rajah 12

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    35 Diagram 13 is a graph showing the total energy required by men of different occupations.

    Rajah 13 ialah graf yang menunjukkan jumlah tenaga yang diperlukan oleh lelaki yang

    berlainan pekerjaan.

    Which occupation represents Q?

    Pekerjaan yang manakah mewakili Q?

    A Clerk B Doctor C Labourer D Teacher

    Kerani Doktor Buruh Guru

    36 Diagram14 shows a change in the lumen size of an artery.

    Rajah 14 menunjukkan perubahan saiz lumen arteri.

    Which class of food can cause the change?

    Kelas makanan yang manakah boleh menyebabkan perubahan tersebut?

    A Protein B Fat C Roughage D CarbohydrateProtein Lemak Pelawas Karbohidrat

    Total energy/kJ

    Jumlah tenaga/kJ

    Type of occupation Jenis pekerjaan

    Q

    Diagram 13

    Rajah 13

    Diagram 14

    Rajah 14

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    37 A farmer finds that his land is infertile. Which natural method can be used to overcome this

    problem?

    Seorang petani mendapati tanahnya tidak subur. Apakah kaedah semulajadi yang dapat

    digunakan untuk mengatasi masalah ini?

    A Add chemical fertilizer C Cultivate terraced planting

    Menambah baja kimia Menanam tanaman berteresB Build a good drainage system D Plant leguminous plants

    Membina sistem saliran yang baik Menanam tumbuhan kekacang

    38 Which of the following processes increase the concentration of atmospheric carbon dioxide?

    Antara proses-proses berikut, yang manakah meningkatkan kepekatan karbon dioksida di

    atmosfera?

    A Transpiration B Respiration C Photosynthesis D Evaporation

    Transpirasi Respirasi Fotosintesis Penyejatan

    39. The nitrates in the soil are returned as atmospheric nitrogen byNitrat di dalam tanah dikembalikan sebagai nitrogen di atmosfera oleh

    A Nitrogen fixing bacteria C Nitrifying bacteria

    Bakteria pengikat nitrogen Bakteria penitritan

    B Denitrifying bacteria D Cholera bacteria

    Bakteria pendenitritan Bakteria kolera

    40 Which of the following is not an effect from the burning of fossil fuels?

    Antara berikut yang bukan akibat pembakaran bahan api fosil?

    A Global warming C Depletion of ozone layer

    Pemanasan global Penipisan lapisan ozon

    B Acid rain D Air pollution

    Hujan asid Pencemaran udara

    41 The following information shows the negative effect of an environmental phenomenon.

    Maklumat berikut menunjukkan kesan negatif fenomena alam sekitar.

    Flood in low lying areas

    Banjir di kawasan rendah

    Increase in Earths average temperature

    Peningkatan suhu purata bumi Melting of polar ice caps

    Peleburan ketulan ais di kutub

    What contributes to these effects?

    Apakah yang menyumbang kepada kesan-kesan ini?

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    A Landslides C Eutrophication

    Tanah runtuh Eutrofikasi

    B Depletion of ozone layer D Global warming

    Penipisan lapisan ozon Pemanasan global

    42 What are hydrocarbons? Apakah hidrokarbon?

    A Compounds that contain carbon

    Sebatian yang mempunyai karbon

    B Compounds that contain hydrogen

    Sebatian yang mempunyai hydrogen

    C Compounds that contain hydrogen, carbon and oxygen

    Sebatian yang mempunyai hirogen, karbon dan oksigen

    D Compounds that contain hydrogen and carbon only

    Sebatian yang mempunyai hirogen dan karbon sahaja

    43 Which of the following is not caused by taking too much cholesterol in the diet?

    Yang manakah berikut bukan disebabkan mengambil terlampau banyak kolesterol

    dalam makanan?

    A Diabetes B Heart attack C Stroke D Arteriosclerosis

    Kencing manis Serangan jantung Strok Arteriosklerosis

    44 Diagram 15 show the structure of a soap molecule.

    Rajah 15 di bawah menunjukkan struktur molekul sabun.

    The structure labelled P will dissolve in

    Struktur berlabel P akan larut dalam

    A fat B water C palm oil D grease

    lemak air minyak sawit gris

    45 Vulcanised rubber is stronger than natural rubber because

    Getah tervulkan adalah lebih kuat dari getah asli kerana

    A its has low melting point

    ia mempunyai takat lebur yang rendah

    B the presence of sulphur makes it more dense

    kehadiran sulfur menjadikan ia makin tumpat

    P

    Diagram 15

    Rajah 15

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    C there are cross-linkage formed between the sulphur atoms and the rubber molecules

    terdapat ikatan silang terbentuk antara atom sulfur dengan molekul getah

    D it is less durable

    ia kurang tahan

    46 Which of the following sequence is correct for the four stoke diesel engine?Antara urutan berikut, yang manakah betul bagi enjin diesel empat lejang?

    A Intake stroke Compression stoke Power stroke Exhaust stroke

    Lejang pengambilanLejang mampatan Lejang kuasa Lejangekzos

    B Intake stroke Compression stoke Exhaust stroke Power stroke

    Lejang pengambilanLejang mampatan Lejangekzos Lejang kuasa

    C Intake stroke Exhaust stroke Compression stoke Power stroke

    Lejang pengambilanLejangekzos Lejang mampatan Lejang kuasa

    D Intake stroke Exhaust stroke Power stroke Compression stoke

    Lejang pengambilanLejangekzos Lejang kuasa Lejang mampatan

    47 Diagram 16 shows a ticker tape section for a moving trolley.

    Rajah 16 menunjukkan keratan pita detik bagi gerakan sebuah troli.

    .

    A Zero velocity C Increasing velocity

    Halaju sifar Halaju bertambah

    B Uniform velocity D Decreasing velocity

    Halaju seragam Halaju berkurangan

    48 Which statement is correct about the principle of Bernoulli?

    Pernyataan manakah yang betul tentang prinsip Bernoulli?

    A Pressure applied to fluid is transmitted equally in all direction.

    Tekanan dikenakan pada bendalir dipindahkan dengan nilai yang sama pada semua arahB Pressure increases when portion being submerged increases

    Tekanan meningkat apabila bahagian tenggelam meningkat

    C Pressure exerted by a liquid varies with depth

    Tekanan dikenakan oleh cecair berubah dengan kedalaman

    D Pressure of a fluid decreases when its velocity increases.

    Tekanan bendalir berkurang apabila halaju meningkat.

    . . . . . . .

    Direction of motion

    Arah gerakan

    Diagram 16

    Rajah 16

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    49 What is the reason of making the front and back portion of a vehicle into crumple zones?

    Apakah tujuan membuat bahagian depan dan belakang kenderaan menjadi kawasan mudah

    remuk?

    A increase the collision time

    menambahkan masa perlanggaran

    B increase the momentum of collisionmenambahkan momentum perlanggaran

    C decrease the inertia of the vehicle

    mengurangkan inersia kenderaan

    D decrease the velocity of the vehicle

    mengurangkan halaju kenderaan

    50 Which of the following pairs petrol and diesel engines is correctly matched?

    Antara padanan enjin petrol dan enjin diesel berikut, yang manakah yang betul?

    END OF QUESTION PAPER

    Petrol engine

    Enjin petrolDiesel engine

    Enjin diesel

    A Causes more pollution

    Menyebabkan lebih pencemaran

    More eco friendly

    Lebih mesra alam

    B Spark plugs

    Palam pencucuh

    Fuel injected into hot gas

    Bahanapi dipancit ke dalam gas panas

    C More efficiency

    Lebih cekap

    Less efficiency

    Kurang cekap

    D Noisy

    Bising

    Quiet

    Senyap

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    Name:

    Class :

    JABATAN PELAJARAN PERAK

    SOALAN LATIH TUBI BERFOKUS 2

    SPM 2011

    SCIENCE

    Paper 2

    Two hours and thirty minutes

    This question paper consist of 18 printed pages

    Examiners Code

    Section QuestionTotal

    mark

    Marks

    obtained

    A

    1 5

    2 5

    3 5

    4 5

    B

    5 6

    6 6

    7 6

    8 6

    9 6

    C

    10 10

    11 1012 10

    Total

    DO NOT OPEN THE QUESTION PAPER

    UNTIL YOU ARE TOLD TO DO SO

    1511/2

    SOLAF 2Science

    2011

    Paper 2

    2 hours

    SULIT1511/2

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    SULIT SOLAF 2

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    Section A

    Bahagian A

    [20 marks]

    [20 markah]

    Answer all questions.

    Jawab semua soalan

    1 Diagram 1 shows an experiment to study the effect of impurities on boiling point of distilledwater.

    Rajah 1 menunjukkan eksperimen untuk mengkaji kesan bendasing ke atas takat didih air

    suling.

    The results obtained are recorded in Table 1Keputusan yang diperolehi dicatatkan dalam Jadual 1

    Substance

    BahanBoiling point/

    oC

    Takat didih/o C

    Distilled water

    Air suling100

    Distilled water + sugar

    Air suling + gula.

    Table 1

    Jadual 1

    (a) Based on the above experiment, complete Table 1

    Berdasarkan eksperimen di atas, lengkapkan Jadual 1.

    [1 mark][1 markah]

    SugarGula

    Thermometer

    Jangka suhuDistilled water

    Air suling

    Diagram 1Rajah 1

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    2 Diagrams 2.1(a) and 2.1(b) show an experiment to study the hardness of copper block and

    bronze block when the weights are dropped onto a steel ball.

    Rajah 2.1(a) dan 2.1(b) menunjukkan satu eksperimen untuk mengkaji kekerasan blok

    kuprum dan blok gangsa apabila pemberat dijatuhkan ke atas bola keluli.

    Diagram 2.1(a) Diagram 2.1 (b)

    Rajah 2.1(a) Rajah 2.1(b)

    The effects on the copper block and bronze block are shown in Diagram 2.2(a) and 2.2(b).

    Kesan pada blok kuprum dan blok gangsa ditunjukkan dalam Rajah 2.2(a) dan 2.2(b).

    Based on Diagram 2.2 (a), measure the diameter of the dent x and complete Table 2.

    Berdasarkan Rajah 2.2(a),ukur diameter lekukan x dan lengkapkan Jadual 2 .

    [1 mark][1 markah ]

    Steel ball

    Bola keluli

    Copper block

    Blok kuprum

    WeightPemberat

    ( 5 kg )

    Bronze block

    Blok gangsa

    x

    Copper block

    Blok kuprum

    Diagram 2.2(a)

    Rajah 2.2(a)

    0.6 cm

    Bronze block

    Blok Gangsa

    Diagram 2.2 (b)

    Rajah 2.2(b)

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    SULIT SOLAF 2

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    Block

    Blok

    Diameter of the dent / cm

    Diameter lekukan / cm

    Copper

    Kuprum

    Bronze

    Gangsa 0.6

    Table 2

    Jadual 2

    (b) State one hypothesis for this experiment?

    Nyatakan satu hipotesis untuk eksperimen ini?

    ....

    [1 mark][1 markah]

    (c) State the variables in this experiment.

    Nyatakan pembolehubah dalam eksperimen ini.

    (i) Constant variable:

    Pembolehubah dimalarkan:

    ...............................................

    (ii) Responding variable:

    Pembolehubah bergerak balas:

    [2 marks]

    [2 markah]

    (d) Bronze is an alloy. State the operational definition for an alloy.

    Gangsa adalah sejenis aloi. Nyatakan definisi secara operasi bagi aloi.

    ...

    [1 mark]

    [1 markah]

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    SULIT SOLAF 2

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    3 In an experiment, a bacteria Basillus subtilis is cultured in a petri dish containing nutrient agar for

    five days at 37C. The result of the experiment is shown in Table 2.

    Di dalam satu eksperimen, bacteria Basillus subtilis telah dikultur di dalam piring petri yang

    mengandungi agar nutrient selama 5 hari pada suhu 37oC. Keputusan eksperimen ditunjukkan

    dalam rajah.

    Time / dayMasa/ hari

    Number of bacterial coloniesBilangan koloni bakteria

    1 8

    2 15

    3 19

    4 21

    5 22

    Table 3Jadual 3

    (a) What is the controlled variable in this experiment?Apakah pembolehubah yang di kawal dalam eksperimen ini?

    .

    [1 mark]

    [1 markah]

    (b) Using data in Table 3 draw a graph of the number of bacterial colonies against timeDengan menggunakan data dalam Jadual 3, lukis graf bilangan koloni bakteria melawan masa

    [2 marks][2 markah]Number of bacterial colonies

    Bilangan koloni bakteria

    Time / day

    Masa / hari

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    (c) What is the relationship between the number of bacterial colonies and time ?

    Apakah hubungan antara bilangan koloni bakteria dengan masa?

    [1 mark]

    [1 markah]

    (d) Predict the number of bacterial colonies produced on the 6th

    day.Ramalkan bilangan koloni bakteria yang dihasilkan pada hari ke enam

    [1 mark][1 markah]

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    SULIT SOLAF 2

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    4 Diagram 4 shows an experiment to compare the elasticity of a natural rubber, (Rubber P) with a

    natural rubber that has been soaked in sulphur monochloride solution, (Rubber Q).

    Rajah 4 menunjukkan eksperimen untuk membandingkan sifat kekenyalan getah asli, (Getah P)

    dengan getah asli yang telah dicelupkan ke dalam larutan sulfur monoklorida, (Getah Q).

    Sulphur monochloridesolution

    Larutan sulfur

    monoklorida

    Scissors

    Gunting

    Natural rubber

    Getah asli

    Clip

    Klip

    Clip

    Klip

    Clip

    Klip

    Clip

    Klip500 g weight

    Pemberat 500 g500 g weight

    Pemberat 500 g

    After weights

    and clips aretake offSelepas

    pemberat dan

    klip

    ditanggalkan

    Beaker

    Bikar

    Diagram 4

    Rajah 4

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    SULIT SOLAF 2

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    (a) State the hypothesis that can be made from this experiment.

    Nyatakan hipotesis yang boleh dibuat daripada eksperimen ini.

    ...............................................................

    [1 mark]

    [1 markah]

    (b) State the variable in this experiment.Nyatakan pembolehubah dalam eksperimen ini.

    (i) Controlled variable:

    Pembolehubah dimalarkan:

    ..............................................................................................................................................

    [1 mark]

    [1 markah](ii) Manipulated variable:

    Pembolehubah dimanipulasikan:

    ..............................................................................................................................................

    [1 mark]

    [1 markah]

    (c) Based on this experiment, which rubber is more elastic?Berdasarkan eksperimen ini, getah manakah yang lebih elastik?

    .....................................................................................................................................................[1 mark]

    [1 markah]

    (d) Mark ( ) the objects which are made of natural rubber that has been produced as in rubber

    Q.Tandakan ( ) bagi objek yang diperbuat daripada getah asli yang telah diproses sepertigetah Q.

    [1 mark]

    [1 markah]

    Tyre

    Tayar

    Belon

    Balloon

    Shoe sole

    Tapak kasut

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    SULIT SOLAF 2

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    Section BBahagian B

    [30 marks][3 markah]

    Answer all questions.

    Jawab semua soalan

    5 Diagram 5 shows a cross section of human brain.

    Rajah 5 menunjukkan keratan rentas otak manusia.

    Diagram 5

    Rajah 5(a) Based on Diagram 5, name the structures labelled A and B.

    Berdasarkan kepada Rajah 5, namakan struktur berlabel A dan B.

    A................................

    B

    [2 marks][2 markah]

    (b) State one function of structure A .Nyatakan satu fungsi strukturA.

    ..........................

    [1 mark]

    [1 markah](c) State two effects of drug abuse on the brain.

    Nyatakan dua kesan penyalahgunaan dadah terhadap otak.

    1 ............................

    2. ..................................[2 marks]

    [2 markah]

    A

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    (d) What will happen if structure B is injured?

    Apakah kesan jika bahagian B tercedera?

    ..................................

    [1 mark]

    [1 markah]

    6 Diagram 6 shows the purification of copper using electrolysis.Rajah 6 menunjukkan penulenan kuprum secara elektrolisis.

    (a) On Diagram 6, name P, Q and R by using the following information

    Pada Rajah 6, namakan P, Q dan R dengan menggunakan maklumat berikut;

    [3 marks][3 markah]

    (b) State the energy changes in this electrolysis process

    Nyatakan perubahan tenaga yang berlaku dalam proses elektrolisis

    ......................................................................................................................................................

    [1 mark][1 markah]

    (c) Why metal P becomes thinner in the electrolysis process?

    Mengapakah logam P menjadi semakin nipis semasa proses elektrolisis?

    .......................................................................................................................................................

    [1 mark]

    [1 markah]

    Q:.........................................................P :.........................................

    R :.........................................................

    Diagram 6

    Rajah 6

    Pure copper/Kuprum tulen

    Impure copper/Kuprum tak tulen

    Copper(II) sulphate/ Larutan kuprum(II) sulfat

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    SULIT SOLAF 2

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    (d) State another use of electrolysis in industry.

    Nyatakan kegunaan lain elektrolisis dalam industri.

    .......................................................................................................................................................

    [1 mark]

    [1 markah]

    7 Diagram 7 shows radioactive rays in an electric field.

    Rajah 7 menunjukkan sinar radioaktif dalam medan elektrik.

    (a) Name the radioactive rays P, Q and R in Diagram 7.

    Namakan sinar radioaktif P, Q dan R pada Rajah 7.

    [3 marks]

    [3 markah]

    (b) Why does ray Q not deflect?

    Mengapakah sinar Q tidak terpesong?

    [1 mark]

    [1 markah]

    (c) Which is the slowest ray?

    Sinar manakah yang bergerak paling perlahan?

    [1 mark]

    [1 markah]

    Radioactive source

    Bahan radioaktifP: ..

    Q: ..

    R: ..

    Diagram 7

    Rajah 7

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    SULIT SOLAF 2

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    (d) State a best method to prevent ray Q from being emitted to the environment.

    Nyatakan satu kaedah paling baik untuk menghalang sinar Q daripada terpancar ke

    persekitaran.

    [1 mark]

    [1 markah]

    8 Diagram 8.1 shows a food pyramid that gives you guidance to a good and balanced diet.

    Rajah 8.1 menunjukkan satu piramid makanan yang dapat memberi panduan kepada anda untuk

    mengamalkan pemakanan yang baik dan seimbang.

    Diagram 8.1

    Rajah 8.1

    (a) What is meant by a balanced diet?

    Apakah yang dimaksudkan dengan diet seimbang?

    [1 mark]

    [1 markah]

    (b) What types of food that is needed in less amount?

    Apakah jenis makanan yang diperlukan dalam kuantiti yang paling sedikit?

    .

    [1 mark]

    [1 markah]

    (c) State one important of good and balanced diet.

    Nyatakan satu kepentingan mengambil makanan yang baik dan diet seimbang.

    [1 mark]

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    SULIT SOLAF 2

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    (d) Diagram 8.2 shows individual X who has an excess of body weight as compared to

    individual Y who has a less weight.

    Rajah 8.2 menunjukkan individu X yang mempunyai berat badan yang berlebihan

    dibandingkan dengan individu Y yang mempunyai berat badan yang terlalu kurang.

    Individual Y individual X Individu Y Individu X

    Diagram 8.2

    Rajah 8.2

    (i) State one harmfull effect that can cause by individual X.

    Nyatakan satu kesan buruk yang akan dihadapi oleh individu X

    [1 mark]

    [1 markah]

    (ii) State one disease that can cause by the individual X.

    Nyatakan penyakit yang akan dihadapi oleh individu X ?

    ..

    [ 1 mark]

    [1 markah]

    (e) Suggest one way to avoid from becoming individual Y?

    Cadangkan satu cara untuk mengelakkan dari menjadi seperti individu Y?

    .

    [1 mark][1 markah]

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    SULIT SOLAF 2

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    9 Diagram 9 shows the structure of a rocket.

    Rajah 9 menunjukkan struktur sebuah roket.

    (a) Name the fuel used by the rocket.Namakan bahan api yang digunakan oleh roket.

    [1 mark]

    [1 markah]

    (b) (i) Name the structure X.

    Namakan struktur X.

    .

    [1 mark][1 markah]

    (ii) What is the function of X?

    Apakah fungsi X?

    [1 mark]

    [1 markah]

    (c) State the principle used in launching the rocket?

    Nyatakan prinsip yang digunakan dalam pelancaran roket?

    ...[1 mark]

    [1 markah]

    (d) On Diagram 9, mark the direction of forces involved during the rocket launching; action, A

    and reaction, R.Pada Rajah 9, tandakan arah daya-daya yang terlibat semasa pelancaran roket; tindakan, A

    dan tindak balas, R. [2 marks]

    [2 markah]

    Liquid oxygen

    Oksigen cecair

    Fuel

    Bahan api

    X

    Diagram 9

    Rajah 9

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    SULIT SOLAF 2

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    Section CBahagian C

    [20 marks][20 markah]

    Answer Question 10 and eitherQuestion 11 orQuestion 12.

    Jawab Soalan 10 dan sama ada Soalan 11 atau Soalan 12.

    10 Study the following statement.Kaji pernyataan berikut.

    (a) Suggest a hypothesis to investigate the above statement. [1 mark]Cadangkan satu hipotesis untuk menyiasat pernyataan di atas. [1 markah]

    (b) You are given a blue filter, a red filter, a green filter and other apparatus, describe anexperiment to test your hypothesis in 10(a) based on the following criteria;

    Anda dibekalkan dengan satu penapis biru, satu penapis merah, satu penapis hijau dan

    radas-radas lain, huraikan satu eksperimen untuk menguji hipotesis di 10(a) berdasarkan

    kriteria berikut;

    (i) The aim of the experiment [1 mark]

    Tujuan eksperimen [1 markah]

    (ii) The identification of variables [2 marks]

    Mengenalpasti pembolehubah [2 markah]

    (iii)The list of apparatus and materials [1 mark]

    Senarai radas dan bahan [1 markah]

    (iv) The procedure or method [4 marks]

    Prosedur atau kaedah [4 markah]

    (v) The tabulation of data [1 mark]

    Penjadualan data [1 markah]

    When white light is directed onto a primary coloured filter, the filter will allow

    certain coloured light to pass through.

    Apabila cahaya putih dipancarkan ke arah penapis warna primer, penapis itu

    hanya membenarkan cahaya berwarna tertentu sahaja melaluinya.

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    SULIT SOLAF 2

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    11 (a) State four differences between voluntary action and involuntary action.

    Nyatakan empat perbezaan antara tindakan terkawal dan tindakan luar kawal.

    [4 marks]

    [4 markah]

    (b) Diagram 11 shows the actions happen inside the body of a man.

    Rajah 11 menunjukkan beberapa tindakan yang berlaku dalam badan seorang lelaki.

    Study the above actions. Explain how you would develop a concept based on the information

    in Diagram 11.

    Kaji tindakan-tindakan di atas. Terangkan bagaimana anda membina suatu konsep

    berdasarkan maklumat dalam Rajah 11.Your explanation of the concept should include the following:

    Penerangan anda tentang konsep itu hendaklah berdasarkan kepada perkara berikut:

    (i) Indentify two common characteristics.

    Kenal pasti dua ciri sepunya.

    (ii) Develop initial concept.

    Membina konsep awal.

    (iii) Give other example and non-example in relation to the concept.

    Memberikan contoh lain dan bukan contoh yang berkaitan dengan konsep.

    (iv) Explain the actual concept.

    Menjelaskan konsep sebenar.

    [6 marks]

    [6 markah]

    Action

    Tindakan

    Heart beat

    Denyutan jantungFood digestion

    Pencernaan makanan

    Hormone secrete

    Perembesan hormonBreathing

    Pernafasan

    Diagram 11

    Rajah 11

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    SULIT SOLAF 2

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    12 (a) Human activities sometimes cause undesirable effects on the environment.

    State two human activities and explain their effects on the balance of nature of the

    environment.

    Aktiviti manusia kadangkala mendatangkan kesan buruk terhadap alam sekitar.

    Nyatakan dua aktiviti manusia dan terangkan kesannya terhadap keseimbangan semulajadialam sekitar.

    [4 marks]

    [4 markah]

    (b) Most factories in an industrial area release smoke and poisonous gases as waste product.The waste product produced will cause air pollution.

    Explain methods to overcome this problem.

    Kebanyakan kilang di suatu kawasan perindustrian membebaskan asap dan gas beracun

    sebagai bahan buangan.

    Bahan buangan yang dihasilkan akan menyebabkan pencemaran udara.

    Terangkan kaedah untuk mengatasi masalah ini.

    Your answer should include the following aspects;

    Penerangan anda hendaklah mengandungi aspek-aspek berikut;

    - Identify the problem [1 mark]

    Kenal pasti masalah [1 markah]

    - Clarification of the problem [1 mark]

    Penjelasan masalah [1 markah]

    - Explain three methods to solve the problem [3 marks]

    Terangkan tiga kaedah penyelesaian [ 3 markah]

    - Choose the best method and explain your choice. [1 mark]

    Pilih kaedah terbaik dan jelaskan pilihan anda. [1 markah]

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    JABATAN PELAJARAN PERAK

    MODUL SOLAF 2

    SIJIL PELAJARAN MALAYSIA 2011

    SCIENCE

    Paper 1

    andPaper 2

    MARKING SCHEME

    This marking Scheme contains 9 printed pages

    1511

    Science

    SOLAF 2SPM

    2011

    1511 SULIT

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    SULIT SOLAF 2

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    Paper 1

    1 C 11 B 21 C 31 D 41 D

    2 B 12 D 22 A 32 A 42 D

    3 C 13 B 23 B 33 C 43 A

    4 A 14 C 24 D 34 A 44 B

    5 D 15 A 25 A 35 C 45 C

    6 B 16 C 26 B 36 B 46 A

    7 A 17 B 27 D 37 D 47 C

    8 C 18 D 28 C 38 B 48 D

    9 B 19 D 29 A 39 B 49 A

    10 D 20 A 30 C 40 C 50 B

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    SULIT SOLAF 2

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    Paper 2

    Question Mark Scheme Mark

    Marks

    1

    (a) 102o C

    (b) Boiling point // Temperature

    (c) Sugar increases the boiling point of distilled water.

    (d) Distilled water is a type of water which has a boiling point of 100o

    C

    (e) Less than 0o C

    1

    1

    1

    1

    1

    Total

    1

    1

    1

    1

    1

    5

    2

    (a) 1.0 0.1 cm

    (b) 1. The diameter of the dent formed on the copper block is bigger/

    larger.2. The diameter of the dent formed on the bronze block is smaller.

    3. The depth of dent formed on the copper block is larger.

    4. The depth of dent formed on the bronze block is smaller.

    [Note : Negative hypothesis also accepted](c) (i) Constant variable: height of weight//mass of weight//

    type of weight // diameter/ size of steel ball

    (ii) Responding variable: diameter of dent// depth of dent

    (d) Alloy is a material / substance which form a smaller dent.

    1

    1

    1

    1

    1

    Total

    1

    1

    2

    1

    5

    3

    (a) 1. Temperature2. Type of bacteria

    3. Volume of nutrient agar

    1 1

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    SULIT SOLAF 2

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    (b) Graph:

    (c) As the time increases, the number of bacterial colonies increases.

    (d) 22

    1

    1

    1

    1

    Total

    2

    1

    1

    5

    4

    (a) Rubber soaked in sulphur monochloride solution is more elastic.

    (b) (i) 1. The original length of natural rubber //

    2. Original size of natural rubber//

    3. The mass of weight.

    (ii) 1. Type of rubber.//

    2. Rubber P and rubber Q. //

    3. Soaked or not soaked in the sulphur monochloride solution.

    (c) Rubber Q

    (d)

    1

    1

    1

    1

    1

    Total

    1

    2

    1

    1

    5

    Number of bacterial colonies

    Bilangan koloni bakteria

    Time / day

    Masa / hari

    x

    x

    x

    xx

    Tyre

    Tayar

    Belon

    Balloon

    Shoe sole

    Tapak kasut

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    SULIT SOLAF 2

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    5

    (a) A : CerebrumB : Cerebellum

    (b) 1. Control the voluntary action //

    2. Control speech / hearing / vision.

    (c) 1. Brain damage

    2. Depression

    3. Hallucination

    4. Stay awake or active

    5. Decrease stress

    6. Slow down the reaction time

    7. Lost sense of smell / vision

    8. Becomes intellectually incapable

    [Any two suitable answers]

    (d) Cannot maintain posture and body balance.

    1

    1

    1

    1

    1

    1

    Total

    2

    1

    2

    1

    5

    6

    (a) P : Impure Copper

    Q : Pure CopperR : Copper (II) sulphate solution

    (b) Chemical energy Electrical energy

    (c) Metal P dissolves to form positive ion.

    (d) 1. Metal extraction //

    2. Metal electroplating

    1

    11

    11

    1

    Total

    3

    1

    1

    1

    6

    7

    (a) P : Alpha ray //Q : Gamma ray // R : Beta ray //

    (b) Ray Q is neutral / Not charged

    (c) P // Alpha ray //

    (d) 1. Keep the radioactive in a lead container/ thick concrete.//

    2. Keep in lead //

    3. Keep in thick concrete.

    1

    11

    1

    1

    1

    Total

    3

    1

    1

    1

    6

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    SULIT SOLAF 2

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    8

    (a) The food that contains sufficient proportion off all classes of food

    (b) Fat

    (c) 1. To supply sufficient energy for daily activities

    2. For the bodys proper growth and development3. To maintain the bodys health

    (d) (i) Obesity

    (ii) 1. Heart disease//2. Hypertension (high blood pressure)//

    3. Diabetes mellitus

    4. Cancers5. Arthritis

    6. Hernias

    7. Varicose veins8. Gallstone

    (e) 1. Take balance diet.

    2. Take proper nutrition.

    1

    1

    1

    1

    1

    1

    Total

    1

    1

    2

    1

    1

    6

    9

    (a) Liquid hydrogen

    (b) (i) Combustion chamber

    (ii) Burn liquid oxygen and hydrogen

    (c) Principle of conservation of momentum.

    (d)

    1

    1

    1

    1

    1

    1

    Total

    1

    2

    1

    1

    1

    6

    Liquid oxygen

    Oksigen cecair

    Fuel

    Bahan api

    X

    Diagram 9

    Rajah 9

    Reaction, R

    Action, A

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    SULIT SOLAF 2

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    10

    (a) Hypothesis:

    1. Red filter permits only red light to pass through it.//

    2. Blue filter permits only blue light to pass through it.//

    3. Green filter permits only green light to pass throughit.//

    4. A certain coloured filter permits a certain colouredlight to pass through it.

    (b) (i) Aim:

    1. To study the effect of primary coloured filter onwhite light.//

    2. To study the effect of coloured filter on light.

    (ii) Variables :1. Manipulated : Coloured filter.2. Responding : Colour on screen //

    The coloured light that passesthrough the filter //

    3. Fixed : White light //

    White screen

    (any 2)(iii) Apparatus:

    1. Red filter,

    2. Green filter.3. Blue filter.

    4. Torch light // Ray box.

    5. White screen.

    (iv) Procedure :

    1. Red filter is put in between a torch light and awhite screen.

    2. Switch on the torch light and direct the light

    towards the white screen.

    3. Observe and record the colour that appears on thescreen.

    4. Repeat step (1) (3) using blue filter and green

    filter.

    OR: Correct diagram(v) Result :

    Coloured filter Colour on the screen

    Red

    Blue

    Green

    1

    1

    1

    1

    1

    1

    1

    1

    1

    1

    Total

    1

    1

    2

    1

    4

    1

    10

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    SULIT SOLAF 2

    1511 SULIT8

    11

    (a)

    Voluntary action Involuntary action

    1. Action done voluntarily /consciously

    1. Action done involuntarily /unconsciously.

    2. Impulse passes fromreceptor to effector through

    cerebrum.

    2. Impulse passes fromreceptor to effector through

    medulla oblongata.

    3. Response can be quicken

    or delayed.3. Quick response.

    4. Response involves skeletal

    muscle.

    4. Response involves smooth

    muscle.

    5. Action is controlled by

    cerebrum.

    5. Action is controlled by

    medulla oblongata.

    (b) Common characteristics:

    1. Action done involuntarily.2. Quick response.

    3. Action is controlled by medulla oblongata.

    4. Impulse passes from receptor to effector through medullaoblongata.

    5. Response involves smooth muscle.

    [Any two]

    Initial concept: Action done involuntarily and a quick

    response are involuntary action.

    Other example: Sweating // Sneezing // Blood flows

    Non example : Writing// walking // singing // dancing

    Actual concept: Involuntary action is done involuntarily and

    a quick response.

    1

    1

    1

    1

    1

    1

    1

    1

    1

    1

    Total

    4

    2

    1

    1

    1

    1

    10

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    SULIT SOLAF 2

    12

    (a)

    Human activities Effect on environment

    1

    Burning of fossil

    fuels by vehicles and

    factory machinery.

    Acid rain// Plant destroy //

    Air pollution //Greenhouse effect //

    Global warming //

    2

    Uncontrolled use of

    chemical substance /

    fertilizer / pesticides /fungicides in

    agriculture.

    Polluted water / lakes /rivers//

    Stimulates excessive algal

    growth // Eutrophication

    3

    Disposal of chemical

    waste/ toxic

    substance /radioactive substance

    into waterways.

    Water pollution //

    Aquatic life destroy //Thermal pollution

    4Use of

    chlorofluorocarbon

    Thinning// depletion of

    ozone layer

    5

    Disposal of non-

    biodegradablerubbish and sewage.

    Landfill sites are filled

    with garbage//

    Land pollution //Contaminated water //

    Water pollution.

    6 DeforestationSoil erosion // flash floods

    // landslides

    [Any two human activities

    and two effect]

    (b) Identify of problem: Air pollution

    Clarification of problem: Most factories release smoke

    and poisonous gases.

    Methods to solve the problem:

    1. Using a tall chimney

    2. Using a filter at the chimney3. Using an electrostatic precipitator / catalytic

    converter.

    4. Using air cleaning system

    5. Law enforcement.

    [Any three methods]

    Best method and explanation:

    Using tall chimney

    2

    2

    1

    1

    11

    1

    1

    4

    6