8

SMK PEREMPUAN SANDAKANPEPERIKSAAN SEMESTER 1

TINGKATAN 4

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 and Section C2Answer all questions in Section A and Section B.

Write your answers for Section A and Section B clearly

in the space provided on the question paper.

3For Section C, answer Question 10 and choose another

Question 11 or Question 12. Write your answer for

Section C on the lined pages provided at the end of

this 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 and Section C is 40 minutes.

6 You are allowed to answer the question in English

or Bahasa Melayu.

Section A / Bahagian A [20 marks]

Answer all questions (Jawab semua soalan)

(The time allocated for this section is 60 minutes /

Masa yang dicadangkan untuk bahagian ini ialah 60 minit)

1Table 1 shows the result of an experiment to show the reaction between 3.0 g zinc

with 100 cm 3 dilute hydrochloric acid.

Jadual 1 menunjukkan keputusan eksperimen hasil tindak balas antara 3.0 g logam zink

dengan 100 cm 3 asid hidroklorik cair.

Time/minutes Masa/minit0123456

Volume of gas/ cm3 Isipadu gas / cm30274657646767

TABLE 1

JADUAL 1

(a)State the hypothesis for this experiment.

Nyatakan hipotesis dalam eksperimen di atas.

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

[1 mark]

(b)Plot a graph of gas volume against time based on Table 1

Lukiskan graf isipadu gas melawan masa berdasarkan Jadual 1

[2 marks](c)Based on the graph that you have plotted, determine the volume of the gas released at 2 minute.

Berdasarkan graf anda, tentukan isipadu gas yang terbebas pada masa 2 minit.

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

[1 mark]

(d)Predict the volume of gas released at 7 minutes.

Ramalkan isipadu gas yang terbebas pada minit ke 7.

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

[1 mark]

2 Diagram 2 shows an experiment to study the electrical conductivity for two types of material.

(Rajah 2 menunjukkan satu eksperimen untuk mengkaji kekonduksian elektrik bagi dua jenis bahan)

Table 2 shows the result of the experiment.

(Jadual 2 menunjukkan keputusan eksperimen)

Material

(Bahan)Bulb Condition

(Keadaan mentol)

Copper rod

(Rod kuprum)Lights up

(Menyala)

Glass rod

(Rod kaca)Does not light up

(Tidak menyala)

TABLE 2

(a) Based on the result in Table 2, state one inference for this experiment.

(Berdasarkan keputusan dalam Jadual 2, nyatakan satu inferens bagi eksperimen ini)

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

[1 mark]

(b) State the constant variable in this experiment.

(Nyatakan pembolehubah yang dimalarkan dalam ekesperimen ini)

..

[1 mark]

(c)Copper rod is a metal. What is the operational definition for metal?

(Rod kuprum adalah logam. Nyatakan definisi secara operasi bagi logam)

...

[1 mark]

(d)What can be observed when the bulb is replaced with ammeter when using copper rod?

(Apakah yang boleh diperhatikan bila mentol digantikan dengan ammeter semasa menggunakan rod kuprum?)

.

[1 mark]

(e) Mark ( ) for the objects in the boxes provided below which have the same physical properties as copper rod.

( Tandakan ( ) pada objek yang mempunyai sifat-sifat yang sama dengan kuprum dalam petak yang disediakan di bawah)

[1 mark]

3Diagram 3 shows an experiment to study the reactivity of metals when react with oxygen.

(Rajah 3 menunjukkan satu eksperimen untuk mengkaji kereaktifan logam bila bertindak balas dengan oksigen)

Three types of metals X, Y and Z are used and the results are shown in the Table 3.

(Tiga jenis logam iaitu X, Y dan Z telah digunakan dan keputusan pemerhatian ditunjukkan dalam Jadual 3. )

Metal

(Logam)Observation (Pemerhatian)

(Condition of burning/keadaan keterbakaran)

XBurns with bright light

(Terbakar dengan nyalaan terang)

YGlows dimly

(Membara malap)

ZBurns moderately

(Terbakar sederhana)

TABLE 3 ( Jadual 3 )

(a)Write down one inference that can be made from observation in Table 3

(Tuliskan satu inferens yang boleh dibuat berdasarkan pemerhatian pada Jadual 3)

......

......

[1 mark]

(b)State the following variables in this experiment.

(Nyatakan pembolehubah berikut dalam eksperimen ini)

(i)Manipulated (Dimanipulasi)

.....(ii)Constant (dimalarkan)

......

[2 marks]

(c) Based on the results in Table 3, arrange the reactivity of the metals from the most reactive to the least reactive.

(Berdasarkan keputusan dalam Jadual 3, susun kereaktifan logam daripada paling reaktif kepada kurang reaktif).

......

[1 mark]

(d)If the metals used in this experiment are magnesium, zinc and iron, predict what is metal X?

(Jika logam-logam yang digunakan di dalam eksperimen ini adalah magnesium, zink dan besi, ramalkan apakah logam X?)

......

[1 mark]4

Diagram 4 shows an experiment to study the changes in the states of matter when it is heated.

Rajah 4 menunjukkan eksperimen untuk mengkaji perubahan keadaan jirim apabila dipanaskan.

The result of the experiment is shown in Table 4.

Keputusan eksperimen ditunjukkan dalam Jadual 4.

Time / minnute

Masa / minitTemperature / 0C

Suhu / 0C

00

50

1036

1568

20100

25100

(a)

Write one observation based on Diagram 4.

Tuliskan satu pemerhatian berdasarkan Rajah 4.

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

[1 mark]

(b) Based on Table 4, draw a graph of temperature against time.

Berdasarkan Jadual 4, lukiskan graf suhu melawan masa.

0 5 10 15 20 25 30 35

[2 marks]

(c) Base on the graph in (b), determine the state of matter at 76oC.

Berdasarkan graf di (b) , tentukan keadaan jirim pada suhu 76oC.

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

[1 mark]

(d) What is the conclusion from this experiment ?

Apakah kesimpulan daripada ekperimen ini?

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

[1 mark]

Section B / Bahagian B[30 marks]

Answer all questions / Jawab semua soalan dalam bahagian iniThe time suggested to answer this section is 50 minutesMasa yang dicadangkan untuk bahagian ini ialah 50 minit

5. Diagram 5 shows the pathway of impulse when a person steps on a sharp object.

( Rajah 5 menunjukkan laluan impuls apabila seseorang terpijak objek tajam )

DIAGRAM 5

( a )(i) Name the type of action shown above.

( Namakan jenis tindakan yang ditunjukkan di atas.)

[1 mark]

(ii) Give the reason for your answer.

( Beri alasan bagi jawapan anda)

[1 mark]

(b) Name the part labelled .

(Namakan bahagian berlabel )

(i) L

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

(ii) M

[2 marks]

(c)State one another example for this action.

( Nyatakan satu contoh lain bagi tindakan ini. )

[ 1 mark ]

(d)Why is this action importance in a daily life.

( Mengapakah tindakan ini penting dalam kehidupan seharian)

[ 1 mark ]6 Diagram 6.1 and 6.2 show the apparatus set up in an experiment to separate salt from its solution.

(Rajah 6.1 dan 6.2 menunjukkan radas eksperimen untuk mengasingkan garam dari larutannya.)

(a)Name the process shown in Diagram 6.1

(Namakan proses yang ditunjukkan dalam Rajah 6.1)

......

[1 mark]

(b) (i) Name the apparatus labelled X?

(Namakan radas yang dilabelkan X ?.)

...... (ii) What is the function of X ?

(Apakah fungsi ?)

......

[2 marks]

(c) Fill P and Q in the suitable boxes of Diagram 6.1 .

(Isikan huruf P dan Q dalam petak yang sesuai pada Rajah 6.1)

[1 mark ]

(d) What is the boiling point of the distillate in Diagram 6.2 ?

(Apakah takat didih hasil sulingan dalam rajah 6.2?)

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

[1 mark]

(e) State process that involved in X..

(Nyatakan proses yang berlaku di X)

...... [1 mark]

7Diagram 7 shows an incomplete Periodic Table.

Rajah 7 menunjukkan lakaran Jadual Berkala yang tidak lengkap.

J

KL

MNP

(a)How are the elements in the Periodic Table arranged?

Bagaimanakah unsur-unsur dalam Jadual Berkala disusun?

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

[1 mark]

(b)Based on Diagram 7, state

Berdasarkan Rajah 7, nyatakan

(i)the type of element N

jenis unsur N

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

(ii)the element with the biggest proton number.

unsur yang mempunyai nombor proton paling besar.

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

[2 marks]

(c)State the changes of element type from K to L in the Periodic Table.

Nyatakan perubahan jenis unsur dari K ke L dalam Jadual Berkala.

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

[1 mark]

(d)State one similar characteristic between element L and element P.

Nyatakan satu sifat yang sama antara unsur L dan unsur P

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

[1 mark]

(e)Name the gas released from the reaction between element K with water.

Namakan gas yang terhasil dari tindak balas antara unsur K dengan air.

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

[1 mark]8Diagram 8 shows the schematic diagram for the inheritance of hair types.

(Rajah 8 menunjukkan rajah skema bagi pewarisan jenis rambut .)

(a)Name the type of variation shown in Diagram 8.

(Namakan jenis variasi yang ditunjukkan dalam Rajah 8)

......

[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 ]

(e) 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?)

......

[1 mark]

9 Diagram 9 shows copper refining using electrolysis

Rajah 9 menunjukkan proses penulenan kuprum secara elektrolisis.

DIAGRAM 9

RAJAH 9

(a) On diagram 9, name P, Q and R by using the following information

Pada Rajah 9, namakan P, Q dan R dengan menggunakan maklumat berikut;

[3 marks]

(b) State the energy changes in this electrolysis process

Nyatakan perubahan tenaga yang berlaku dalam proses elektrolisis

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

[1 mark]

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

Mengapakah logam P menjadi semakin nipis semasa proses elektrolisis?

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

[1 mark]

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

Nyatakan satu kegunaan elektrolisis selain dari penulenan logam.

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

[1 mark]

Bahagian C

[20 marks]

Answer Question 1 and any one of Question 2 or Question 3.

(The time allocated for this section is 40 minutes)

Jawab soalan satu dan mana-mana satu soalan 2 atau soalan 3.

(Masa yang dicadangkan untuk bahagian ini ialah 40 minit)11There are two types of changes of matter, physical changes and chemical changes

Terdapat dua jenis perubahan jirim iaitu perubahan fizik dan perubahan kimia.

(a)State four differences between the physical changes and the chemical changes.

Nyata empat perbezaan antara perubahan fizik dengan perubahan kimia

[4 marks](b) Diagram 11 shows three experiments that was conducted by a student to study the chemical changes

Rajah 11 menunjukkan tiga eksperimen yang dijalankan oleh seorang pelajar untuk mengkaji perubahan kimia.

Study the experiment in Diagram 11 and develop a concept of chemical changes.

Your answer should be based on this steps;

Kaji eksperimen dalam Rajah 11 dan bina konsep tentang perubahan kimia.

Jawapan anda hendaklah berdasarkan langkah-langkah berikut;

Identifying the information

Mengenal pasti maklumat

[1 mark]

Identifying the common characteristics

Mengenal pasti ciri-ciri sepunya [2 marks]

Relate between the common characteristics with the chemical change

Menghubungkaitkan antara ciri-ciri sepunya dengan perubahan kimia

untuk membina konsep awal

[1 mark]

To state one other example of chemical change and one non example

of chemical change

Menyatakan satu contoh lain perubahan kimia dan satu contoh bukan

perubahan kimia

[1 mark]

To state the actual concept of chemical change

Menyatakan konsep sebenar perubahan kimia

[1 mark]

END OF QUESTION PAPERPrepared by,Checked by,Confirmed by,

(Hafiza Nasyirin Ariffin)

Subject Teacher______________________

(Yap Nyuk Hee)

Head Of Sc & Math Department____________________

(Bernadeth De Guzman)

Senior Assistant of Curriculum

1511/2

Science

Paper 2

2 hours

SCIENCE

Paper 2

Two Hours and Thirty Minutes

For Examiners UseSectionQuestionMarksA1234B56789C101112Total

10

20

30

40

50

60

70

Volume of gas (cm3) Isipadu

gas (cm 3)

0

1

2

3

4

5

6

7

8

Time (minutes) / Masa (minit)

6V

Bulb (mentol)

Glass rod

(rod kaca)

6V

Bulb(mentol)

Copper rod

(rod kuprum)

DIAGRAM 2

Can

NESPRAY

Balloon

Medal

SILVER

Heat (Panaskan)

Heat (Panaskan)

Glass wool

(Wul kaca)

Metal filling

(Serbuk logam)

Potassium manganate (VII)

(Kalium mangganat (VII))

DIAGRAM 3

Bunsen bunner

beaker

thermometer

thermometer

termometer

ice

ais

Ice before heating

Ais sebelum dipanaskan

Ice after heating

Ais selepas dipanaskan

Diagram 4

Rajah 4

Jadual 4

Suhu / 0 C

100

80

60

40

20

Masa / min

(Saraf tunjang)

(Saraf tunjang)

Serpihan porselin

DIAGRAM 6.2

Glass tube

(Salur kaca)

Thermometer

(Termometer)

Boiling tube

(Tabung didih)

Distillate

(Hasil sulingan)

Heat

(Panaskan)

DIAGRAM 6.1

X

Heated

(dipanaskan)

.........

Distillate

(Hasil sulingan)

P :Water outlet

(Air keluar)

Q :Water inlet

(Air masuk)

VIII

I

VII

VI

V

IVV

III

II

DIAGRAM 7

RAJAH 7

Father

(Bapa)

Mother

(Ibu)

Curly hair

(Rambut kerinting)

Children

(Anak)

HH

hh

Straight hair

(Rambut lurus)

DIAGRAM 8

(RAJAH 8)

Q:.........................................................

P :.........................................

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

Pure copper/Kuprum tulen

Impure copper/Kuprum tak tulen

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

DIAGRAM 11

RAJAH 11

Magnesium ribbon

Pita Magnesium

Evaporation dish

Mangkuk penyejat

Mixture of iron powder with sulphur powder

Campuran serbuk ferum dengan serbuk sulfur

Heat

Panaskan

Copper (II) sulphate

Kuprum(II)sulfat

Zinc plate

Kepingan zink

Chemical reaction

Tindakbalas kimia