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8/4/2019 Soalan Sains SPM

1/15

BENGKEL DAN TEKNIK MENJAWAB SPM 2011

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

1 This question paper consists of three sections: Section A,

Section B andSection C

2 Answer all questions in Section A andSection B.

Write your answers forSection A andSection B clearly

in the space provided on the question paper.

3 For Section C, answerQuestion 10 and choose another

Question 11 orQuestion 12. Write your answer for

Section C on the lined pages provided at the end ofthis paper. Answer should be clear and logical.

4 The marks allocated for each sub-part of a question

are shown in brackets.

5 The time suggested to complete Section A is 60 minutes,

Section B is 50 minutes andSection C is 40 minutes.

1511/2

Science

Paper 2

2 hours

SCIENCE

Paper 2

Two Hours and Thirty Minutes

For Examiners Use

Section Question Marks

A

1

2

3

4

B

5

6

78

9

C

10

11

12

Total


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PAPER 2 1511/2

6 You are allowed to answer the question in English

or Bahasa Melayu.

This question paper consists of16 printed pages

Section A[20 marks]

Answerall questions in this section.

Jawab semua soalanThe time suggested to answer this section is 60 minutes

Masa yang dicadangkan untuk bahagian ini ialah 60 minit

1 Diagram 1 shows an experiment to study the effect of impurities on the freezing point of distilled water.

(Rajah 1 menunjukkan eksperimen untuk mengkaji kesan bendasing ke atas takat beku air suling)

(a) (i) Based on the above experiment , what is your observation of the thermometer

reading ?

(Berdasarkan eksperimen di atas, apakah pemerhatian anda pada bacaantermometer?)

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

[1 mark]

(ii) What is the thermometer reading in Diagram 1.2 ?

(Apakah bacaan termometer pada Rajah 1.2?)

..................................................................................... 0 C

[1 mark](b) State the variables in this experiment.

(Nyatakan pemboleh ubah dalam eksperimen ini)

(i) Manipulated variable

(Pemboleh ubah yang dimanipulasikan)

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

2

GRAM 1

DIAGRAM 1.1

(RAJAH 1.1)

DIAGRAM 1.2

(RAJAH 1.2)

Thermometer

(Termometer)

Distilled water

(Air suling)

+ common salt

(garam biasa)

Ice

(Air batu)

Distilled water

(Air suling)


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[1 mark](ii) Responding variable

(Pemboleh ubah yang bergerakbalas)

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

(c) State one inference for this experiment.

(Nyatakansatu inferens dalam eksperimen ini)

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

[1 mark]

2 Diagram 2 shows an object X placed in front of a pin hole camera

(Rajah 2 menunjukkan satu objek X diletakkan di hadapan sebuah kamera lubang jarum)

(a) Draw a ray diagram to show the image of the object formed.

(Lukiskan rajah sinar bagi menunjukkan pembentukan imej bagi objek tersebut)[2 marks]

(b) Measure and write down the size of the image.

(Ukur dan tulis saiz imej tersebut)

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

[1 mark]

(c) Stateone

characteristic of the image formed.

(Nyatakasatu ciri imej yang terbentuk.)

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

[1 mark]

(d) Predict the size of image formed if the object is moved closer to the pin hole camera

(Ramalkan saiz imej yang terbentuk jika objek digerakkan mendekati kamera lubang jarum

3

DIAGRAM 2

(RAJAH 2)

Object

(Objek)

Pin hole camera

(Kamera lubang jarum)


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

[1 mark]

3 Table 1 shows the results of an experiment studying the effect of temperature on bacterial growth.( Jadual 1 menunjukkan keputusan eksperimen mengkaji kesan suhu ke atas pertumbuhan bakteria)

Petri dishes

(Piring petri)

Temperature (oC)

(Suhu (oC)

Number of bacterial

colonies

(Bilangan coloni bakteria)

1 10 2

2 20 5

3 30 9

4 40 10

5 50

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

6 60 0

(a) Based on Table 1, draw a graph to show the relationship between the number of bacterial colonies

and temperature .

(Berdasarkan pada Jadual 1, lukis graf yang menunjukkan hubungan antara bilangan kolonibakteria terhadap suhu)

4

TABLE 1

(JADUAL 1)

Number of bacterial colonies

(Bilangan koloni bakteria)

6

0

8

4

10

12

00

2

10 20 4030 50 60

Temperature (oC)

(Suhu oC)


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[2 marks]

(b) Based on the graph, state the number of bacterial colonies at 500 C in Table 1

(Berdasarkan graf, nyatakan bilangan koloni bakteria pada suhu 500 C dalam Jadual 1)[1 mark]

(c) What is the hypothesis of this experiment?.(Apakah hipotesis bagi eksperimen ini?)

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

[1 mark]

(d) Write down one inference that can be made from the observation in Table 1.

(Tuliskansatu inferens yang boleh dibuat berdasarkan pemerhatian pada Jadual 1)

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

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

[1 mark]

4 Diagram 4 shows an experiment to study the relationship between the upthrust and the weight of an

object.

(Rajah 4 menunjukkan satu eksperimen untuk mengkaji hubungan antara daya tujah ke atas dengan

berat objek)

(a) State the weight of object in:

(Nyatakan berat objek di dalam :)

(i) Diagram 4.1 : ....................................................................N

(Rajah 4.1)

(ii) Diagram 4.2 : ................................................................... N

5

Object

(objek)

Spring

balance

Eureka can

Water

(Air)

DIAGRAM 4.1

(RAJAH 4.1)

DIAGRAM 4.2

(RAJAH 4.2)


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(Rajah 4.2)[2 marks]

(b) State one inference that can be made from the observation.

(Nyatakansatu inferens yang boleh dibuat berdasarkan pemerhatian)

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

(c) State one way how to fix constant variable in this experiment.

(Nyatakansatu cara untuk menetapkan pembolehubah yang dimalarkan dalam eksperimen di atas)

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

[1 mark]

(d) An object immersed in water experience upthrust .State the operational definition forupthrust.

(Objek yang terendam di dalam air mengalami daya tujah ke atas. Nyatakan definisi secaraoperasi bagi tujah ke atas).

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

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

[1 mark]

Section B

[30 marks]

Answerallquestions in this section.The time suggested to answer this section is 50 minutes.

5. Diagram 5.1 and 5.2 show two types of neurones.

(Rajah 5.1 dan 5.2 menunjukkan dua jenis neuron.)

(a) (i) Name the type of neurone in Diagram 5.1(Namakan jenis neuron dalam Rajah 5.1 )

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

[1 mark]

(ii) State the function of the neurone.

(Nyatakan fungsi neuron tersebut)

6

DIAGRAM 5.1

(RAJAH 5.1)

DIAGRAM 5.2

(RAJAH 5.2)


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

[1 mark]

(b) State one difference between neurone in Diagram 5.1 and 5.2(Nyatakansatu perbezaan antara neuron dalam Rajah 5.1 dan 5.2)

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

[1 mark]

(c) The diagram shows the sequence of nerves impulses travel along the reflex arc.

(Rajah menunjukkan urutan perjalanan impuls saraf dalam suatu tindakan refleks.)

Receptor P spinal cord Q effector

( reseptor P saraf tunjang Q efektor)

Between neurone in Diagram 5.1 or 5.2, which neurone represent Q?

(Antara neuron dalam Rajah 5.2 atau 5.2, yang manakah mewakili Q? )

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

(d) What is the effect if neurone in Diagram 5.2 is not functioning?

(Apakah kesan jika neuron dalam Rajah 5.2 tidak berfungsi?)

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

[1 mark]

(e) Name part of the neurone that speeds up the transmission of impulses.(Namakan bahagian pada neuron yang mempercepatkan perjalanan impuls.)

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

[1 mark]

7


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6 Diagram 6 shows the schematic diagram for the inheritance of hair types.

(Rajah 6 menunjukkan rajah skema bagi pewarisan jenis rambut .)

(a) Name the type of variation shown in Diagram 6.

(Namakan jenis variasi yang ditunjukkan dalam Rajah 6)

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

[1 mark]

(b) State another example of the same type of variation mentioned in (a).

(Nyatakan satu contoh lain bagi jenis variasi seperti yang dinyatakan di (a).

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

(c) What factor influences the above variation?.

(Apakah faktor yang mempengaruhi variasi di atas?)

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

[1 mark]

(d) Write down each childs genotype in the boxes provided in Diagram 6.

(Tuliskan genotip bagi setiap anak dalam kotak yang disediakan dalam Rajah 6)

[2 marks]

(e) Based on Diagram 6, which type of hair is dominant?

(Berdasarkan Rajah 6, jenis rambut yang manakah dominan?)

8

Straight hair

(Rambut lurus)

DIAGRAM 6

(RAJAH 6)

Father(Bapa)

Mother(Ibu)

Curly hair

(Rambut kerinting)

Children(Anak)

HH hh


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

[1 mark]7 Diagram 7 shows a simple cell.

(Rajah 7 menunjukkan sel ringkas)

(a) (i) Name the negative electrode in Diagram 7

(Namakan terminal negatif pada Rajah 7)

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

(ii) State the reason for your answer

(Nyatakan alasan bagi jawapan anda)

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

[1 mark](b) Name the electrolyte used

(Namakan elektrolit yang digunakan)

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

[1 mark]

(c) Mark the electron flow using an arrow on Diagram 7

(Tandakan arah pergerakan elektron dengan menggunakan anak panah pada Rajah 7)

[1 mark]

(d) After 30 minutes, what can be observed at zinc plate?

(Selepas 30 minit, apakah yang dapat diperhatikan pada plat zink?)

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

[1 mark]

(e) State the change of energy in a simple cell.

(Nyatakan perubahan tenaga dalam sel ringkas)

9

Zinc plate

(Plat zink)Copper plate

(Plat kuprum)

Dilute hydrochloric acid

(Asid hidroklorik cair)

DIAGRAM 7

(RAJAH 7)


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

[1 mark]

8 Diagram 8 shows the label of a processed food which does not comply with the Food Regulation 1985.

(Rajah 8 menunjukan label pemprosesan makanan yang tidak memenuhi Akta Makanan 1985)

(a) Give one piece of informations that are not in the label as required by the Food Regulation 1985.

(Berikansatu maklumat yang tiada pada label seperti yang dikehendaki oleh Akta Makanan 1985)

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

[1 mark]

(b) (i) Name one chemical shown on the label that is prohibited for excessive consumption.

(Namakansatu bahan kimia pada label berkenaan yang dilarang digunakan secaraberlebihan)

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

[1 mark]

(ii) Give one effect of the chemical stated in (b)(i) on health.

(Berikansatu kesan bahan kimia yang dinyatakan di (b)(i) kepada kesihatan)

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

[2 marks]

(c) State the method of preservation that is used in this food processing.

(Nyatakan kaedah penyimpanan yang digunakan dalam pemprosesan makanan ini)

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

10

Ingredients (Ramuan) : Manufactured by (Dikeluarkan oleh):

Prawn, flour, Sodium ADIHA FOOD INDUSTRIESChloride, Monosodium glutamate, KG MURNI INDUSTRIES AREA,

Sucrose, Boric Acis HULU TERENGGANU

HALAL

DIAGRAM 8

(RAJAH 8)


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[1 mark]

(d) As a consumer what is the importance of reading the label on processed food?

(Sebagai seorang pengguna, apakah kepentingan membaca sesuatu label pemprosesanmakanan?)

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

[1 mark]

9 Diagram 9 shows the transmission system in a radio station.

(Rajah 9 menunjukkan sistem pemancar di dalam stesen radio)

(a) Name component P.

(Namakan komponen P)

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

[1 mark]

(b) What energy change that occurs in the microphone?(Apakah perubahan tenaga yang berlaku pada mikrofon?)

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

[1 mark]

11

DIAGRAM 9

(RAJAH 9)

Modulated radio waves

(Gelombang radio termodulasi)

Aerial

(Aerial)

Amplifier

(Amplifier)

Modulator

(Modulator)

Microphone

(Mikrofon)

P


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(c) Draw a shape of waves produced by the modulator.

(Lukiskan satu bentuk gelombang yang dihasilkan oleh modulator.)

[1 mark]

(d) (i) Name the electronic component in the amplifier

(Namakan komponen elektronik dalam amplifier)

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

(ii) State the function of electronic component in (d) (i).

(Nyatakan fungsi komponen elektrik di (d) (i).

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

[2 marks]

(e) Give one reason why radio waves are suitable for use in a radio communication system

(Berikansatu sebab mengapa gelombang radio sesuai untuk sistem komunikasi radio.)

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

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

[1 mark]

12


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Section C

[20 marks]

AnswerQuestion 10and eitherQuestion 11 orQuestion 12.

Write your answers on pages 15 - 17The time suggested to answer this section is 40 minutes

JawabSoalan 10dan mana-manasatu daripada Soalan 11 atau Soalan 12.

Tuliskan jawapan anda di halaman 15-17.

Masa yang dicadangkan untuk menjawab bahagian ini ialah 40 minit.

10 Study the following statement,

( Kaji pernyataan berikut,)

Your are given ,

( Anda diberi, )

Latex, ethanoic acid, ammonium solution, measuring cylinder, glass rod

(Lateks, asid etanoik, larutan ammonia, silinder penyukat, rod kaca)

(a) Suggest a hypothesis to investigate the above statement.

(Nyatakan satu hipotesis untuk menyiasat pernyataan di atas)[1 mark]

(b) Describe an experiment to test your hypothesis based on the following criteria:

(Huraikan satu eksperimen untuk menguji hipotesis anda berdasarkan kepadaperkara-perkara berikut;)(i) Aim of the experiment.

( Tujuan eksperimen )[1 mark]

(ii) Identification of variables

( Mengenalpasti semua pemboleh ubah)[2 marks]

(iii ) List of apparatus and materials

( Senarai radas dan bahan )[1 mark]

( iv) Procedure

(Kaedah / prosedur)[4 marks]

(v) Tabulation of data

( Penjadualan data)[1 mark]

13

Acid and Alkali have different effects when react on latex.

( Asid dan alkali memberi kesan berbeza apabila bertindakbalas ke atas lateks )


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11 (a) Distillation and crystallisation are methods of purification of substances. State twodifferences between distillation and cystallisation and give one suitable example

for each of the methods.(Penyulingan dan penghabluran adalah kaedah penulenan bahan. Nyatakan dua

perbezaan antara kaedah penyulingan dan penghabluran dan berisatu contohyang sesuai bagi setiap kaedah tersebut)

[4 marks](b) A student discovers ethanol is produced by fermentation process. He finds that the ethanol

produced is not pure. Explain to obtain pure ethanol from its solution. Your explanation should

include the following aspects

(Seorang pelajar mendapati etanol dihasilkan dari proses penapaian.Dia mendapatietanol yang dihasilkan adalah tidak tulen. Terangkan bagaimana untuk mendapatkan

etanol tulen daripada larutannya. Penerangan anda mestilah mengandungi perkara berikut:)

Problem statement

(Penyataan masalah) [1 mark]

Name of the method used

(Nama kaedah yang digunakan)[1 mark]

Steps of the method used

(Langkah-langkah bagi kaedah tersebut[4 marks]

12 (a) State two types of plastics and two of their differences.

(Nyatakan dua jenis plastik dan dua perbezaannya)[4 marks]

(b) Plastics are very widely used because they are economical and easily available , but the usageresults negative effects on the environment. Explain how to solve the problem due to pollution

resulting from the plastic disposal.

Your explaination should base on the following aspect:

(Penggunaan plastik sangat meluas kerana ia murah dan mudah didapati, tetapi penggunaannya

mendatangkan kesan yang buruk kepada alam sekitar. Terangkan bagaimanakah cara menanganimasalah pencemaran akibat pembuangan plastik. Penerangan anda hendaklah mengandungi

perkara-perkara berikut:)

Identify the problem.

(Mengenal pasti masalah)

Clarification of the problem

(Penerangan kepada masalah tersebut)

Explain three alternatives to solve the problem

(Senarai tiga alternatif bagi mengatasi msalah tersebut)

Choose the best alternative and state the reason for your choice

(Pilih alternatif terbaik dan nyatakan sebab pilihan anda)[6 marks]

14


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