131744843 soalan latihan tingkatan 4 bab 5

7/26/2019 131744843 Soalan Latihan Tingkatan 4 Bab 5

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55 Penerbitan Pelangi Sdn. Bhd.

55.1 Perubahan Kimia dan Perubahan Fizik

1. Nyatakan perbezaan antara perubahan fizik dengan perubahan kimia. State the differences between physical changes and chemical changes.

Perubahan fizikPhysical changes

Perubahan kimiaChemical changes

Perubahan akan mempengaruhi sifat-sifat

sahaja

Changes will only affect the

characteristics

Perubahan akan mempengaruhi sifat-sifat

sahaja

Changes will only affect the

characteristics.

Memerlukan tenaga yang

Require a energy

Memerlukan tenaga yang

Require a energy

Perubahan adalah dan berbalik

The change is and reversible

Perubahan adalah dan tidak

berbalik

The change is and irreversible

Komposisi kimia hasil dengankomposisi bahan asal

The chemical composition of the products is

to the composition of the original

substances

Komposisi kimia hasil dengankomposisi bahan asal

The chemical composition of the products is

to the composition of the original

substances

5 2

5.2 Perubahan Haba dalam Tindak Balas Kimia

2. Nyatakan perbezaan antara tindak balas endotermik dengan tindak balas eksotermik. State the differences between endothermic reactions and exothermic reactions.

Tindak balas endotermikEndothermic reaction

Tindak balas eksotermikExothermic reaction

Tenaga haba

The heat energy is

Tenaga haba

The heat energy is

Tenaga dan Perubahan Kimia

5

05[T Gear Sci F4] indd 5505[T Gear Sci F4].indd 55 9/21/11 5:14 PM9/21/11 5:14 PM


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Penerbitan Pelangi Sdn. Bhd. 56

Sains Tingkatan 4 Bab 5 Tenaga dan Perubahan Kimia

Tindak balas endotermikEndothermic reaction

Tindak balas eksotermikExothermic reaction

Aras tenaga bagi hasil tindak balas lebih

daripada aras tenaga bagi bahantindak balas.

The energy level of the products is

than the energy level of the reactants.

Aras tenaga bagi hasil tindak balas lebih

daripada aras tenaga bagi bahantindak balas.The energy level of the products is

than the energy level of the reactants.

Suhu persekitaran akan

The temperature of the surroundings will

Suhu persekitaran akan

The temperature of the surroundings will

Lengkapkan pernyataan berikut.Complete the statements below.

3. Proses yang digunakan untuk membuat ammonia dikenali sebagaiThe process used to manufacture ammonia is known as

Keadaan tindak balas: / Conditions for the reaction:

(a) Suhu: / Temperature:

(b) Tekanan: / Pressure:

(c) Mangkin: / Catalyst:

4. Proses Sentuh ialah proses untuk membuat

Contact Process is the process to manufacture

Keadaan tindak balas: / Conditions for the reaction:

(a) Suhu: / Temperature:

(b) Tekanan: / Pressure:

(c) Mangkin: / Catalyst:

5 35.3 Siri Kereaktifan Logam

5. Siri kereaktifan logam menyusun logam-logam mengikut kereaktifannya dengan logam yang

paling reaktif berada di siri dan logam yang paling kurang reaktif berada di

siri. The reactivity series of metals arranges the metals according to their reactivity with the most reactive metal placed

at the of the series and the least reactive metal placed at the of the

series.



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6. Lengkapkan tindak balas berikut: Complete the following reactions.

(a) Logam + Air +

Metal + Water +

(b) Logam + Asid cair +

Metal + Dilute acid +

(c) Logam + Oksigen

Metal + Oxygen

5 4

5.4 Aplikasi Siri kereaktifan Logam

Lengkapkan pernyataan berikut.Complete the following statements.

7. Karbon berada di bawah dan di atas dalam siri kereaktifanlogam.

Carbon is placed below and above in the reactivity series of the

metals.

8. Nyatakan kaedah pengekstrakan logam daripada bijihnya jika State the method of extraction of metal from its ores if the

(a) logam itu berada di bawah karbon:metal is located below the carbon:

Proses

process

(b) logam itu berada di atas karbon: metal is located above the carbon:

Proses

process

5 55.5 Elektrolisis

9. (a) Nyatakan tigaaplikasi elektrolisis. State threeapplications of electrolysis.

(b) Dalam satu proses penyaduran perak ke atas sudu besi, kenal pastiIn an electroplating process of silver on the iron spoon, identify the

anod / anode :

katod / cathode :

elektrolit / electrolyte:



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(c) Aluminium dapat diekstrakkan daripada bijihnya melalui elektrolisis. Aluminium can be extracted from its ore through the electrolysis.

(i) Apakah nama bijih aluminium? What is the name of the aluminium ore?

(ii) Kenal pasti elektrod-elektrod di mana aluminium dan gas oksigen dibebaskan. Identify the electrodes at which aluminium and oxygen gas are liberated.

Aluminium: / Aluminium:

Gas oksigen: / Oxygen gas:

5 6

5.6 Tenaga Eelektrik daripada Tindak Balas Kimia

10. Rajah 1 menunjukkan satu radas untuk menyiasat penghasilan elektrik daripada satu sel

ringkas.

Diagram 1 shows an apparatus to investigate the production of electricity from a simple cell.

ZinkZinc

KuprumCopper

Larutan YSolution Y

V

Rajah 1 /Diagram 1

(a) Namakan larutan Yyang digunakan dalam sel ini.

Name solution Y used in this cell.

(b) Nyatakan keterkutuban pada elektrod kuprum dan elektrod zink. State the polarity on the copper electrode and zinc electrode.

(c) Tentukan arah pengaliran elektron dalam sel di atas. Determine the direction of the flow of electrons in the above cell.

(d) Apakah kesan bacaan voltmeter jika perubahan berikut dijalankan?

What is the effect on the voltmeter reading if the following changes are carried out?(i) Zink digantikan dengan magnesium. Zinc is replaced with magnesium.

(ii) Zink digantikan dengan kuprum. Zinc is replaced with copper.



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55.1 Perubahan Fizik dan

Perubahan Kimia

1. Rajah 1 menunjukkan satuproses kimia Yyang berlakuke atas satu kunci besi.

Diagram 1 shows a chemical

process Y happened on an iron

key.

Proses Y

Process Y

Kunci besi

Iron key

Karat

Rust

Rajah 1 / Diagram 1

Proses yang manakahdigunakan untuk mencegah

proses Y? Which process can be used to

prevent processY?

A Pemanasan Heating

B Penyejukan Cooling

0

C Penyaduran elektrik Electroplating

D Penulenan

PurificationSederhana

Pengetahuan

2. Antara ciri berikut, yangmanakah betul bagi satu

perubahan kimia? Which of the following

characteristics is true for a

chemical change?

A Pembentukan bahan baru Formation of a new

substance

B Kuantiti tenaga yangterlibat adalah sedikit

A small amount of energy isinvolved

C Berbalik Reversible

D Perubahan adalahsementara

The change is temporary

Sederhana Pengetahuan

3. Rajah 2 menunjukkan

pembakaran satu pita

magnesium.

Diagram 2 shows the burning of amagnesium ribbon.

Mangkuk pijarCrucible

Pita magnesiumMagnesium ribbon

Rajah 2/ Diagram 2

Apakah jenis perubahan ini? What type of change is it?

A Perubahan fizik Physical change

B Perubahan kimia Chemical change

C Kadar perubahan Rate of change

D Perubahan warna Colour change


5 7

5.7 Cahaya dan Tindak Balas Kimia

11. Bahan fotopeka akan terurai apabila terdedah kepada cahaya matahari. A photosensitive material will decompose when it is exposed to the sunlight.

(a) Berikan satucontoh bahan fotopeka.

Give oneexample of a photosensitive material.

(b) Tuliskan satupersamaan perkataan yang menunjukkan penguraian bahan fotopeka dengan

menggunakan contoh yang diberikan di 11(a). Write one word equation to show the decomposition of the photosensitive material using the example you

have given in 11(a).

(c) Nyatakan satuaplikasi yang menggunakan bahan fotopeka. State oneapplication that uses photosensitive material.

Praktis Sumatif

Soalan Objektif



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5 25.2 Perubahan Haba dalam

Tindak Balas Kimia

4. Jadual 1 menunjukkankeputusan satu eksperimen

untuk mengkaji perubahanhaba dalam satu tindak balaskimia.

Table 1 shows the results of an

experiment to study the heat

change in a chemical reaction.

Suhu awalInitial temperature

27C

Suhu akhirFinal temperature

45C

Jadual 1 / Table 1

Berdasarkan keputusan di

atas, apakah jenis tindakbalas yang terlibat? Based on the above results, what

type of reaction is involved?

A Eksotermik Exothermic

B Endotermik Endothermic

C Kondensasi Condensation

D Pembakaran Combustion

Mudah Pengetahuan

5. Antara yang berikut, yangmanakah betul tentang satutindak balas endotermik?

Which of the following is true

about an endothermic reaction?

A Haba dibebaskan kepersekitaran.

Heat is released to the

surroundings.

B Hasil tindak balasmempunyai tenaga yangkurang daripada bahantindak balas.

The products have lessenergy than the reactants.

C Suhu larutan berkurang. The temperature of the

solution decreases.

D Tekanan persekitaranbertambah.

The pressure of the

surroundings increases.

Sederhana Pemahaman

5 35.3 Siri Kereaktifan

Logam

6. Dua persamaan digunakanuntuk membandingkan

kereaktifan antara tiga logam. The two equations are used to

compare the reactivity between

the three metals.

LogamP+ Plumbum(II)nitratPlumbum +PnitratMetal P + Lead(II) nitrate

Lead + P nitrate

Plumbum + QnitratLogam Q+ Plumbum(II)nitrat

Lead + Q nitrate

Metal Q + lead(II) nitrate

Susun logam-logam tersebut

dalam tertib menurunmengikut kereaktifannya.

Arrange the metals in

decreasing order of reactivity.

A P, Q, Plumbum P, Q, Lead

B Plumbum, Q, P Lead, Q, P

C P, Plumbum, Q P, Lead, Q

D Q, Plumbum,P Q, Lead, P

Sukar Pemahaman

7. Satu tindak balas antara zinkdan kuprum oksida diwakilioleh persamaan berikut.

A reaction between zinc and

copper oxide is represented by

the following equation.

Logam P + Zink oksidaP oksida + ZinkMetal P + Zinc oxide P

oxide + Zinc

Antara logam berikut, yangmanakah mungkinP?

Which of the following metals

could be P?

A Magnesium Magnesium

B Kuprum Copper

C Timah

TinD Plumbum Lead

Sukar Pengetahuan

8. Rajah 2 menunjukkanpemerhatian yang diperolehapabila tiga jenis logamdibakar dalam oksigen.

Diagram 2 shows the

observations obtained when

three types of metals are burnt in

oxygen.

Gas oksigenOxygen gas

LogamPMetal P

NyalaanFlame


LogamQMetal Q


LogamRMetalR

Rajah 2 / Diagram 2

Pilih urutan logam-logamyang betul dalam tertib menaikmengikut kereaktifannya.

Choose the correct sequence

of the reactivity of the metals in

ascending order.

A P, Q,R C Q,R,P

B P,R, Q D R,P, Q

Sederhana Pemahaman

2007



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5 35.3 Aplikasi SiriKereaktifan Logam

9. Logam Qdapat diekstrakkandaripada bijihnya dengan

memanaskannya dengankarbon. Apakah logam Q?

Metal Q can be extracted from

its ore by heating it with carbon.

What is metal Q?

A Natrium Sodium

B Aluminium Aluminium

C Besi Iron

D KaliumPotassium


10. Emas sesuai digunakan

sebagai barang kemas kerana

ia mempunyai ciri-ciri

berikut: Gold is suitable to be used as

jewellery because it has the

following characteristics:

Berkilat Shiny Tahan kakisan Resist corrosion

Antara berikut, yangmanakah merupakan satu lagiciri bagi emas?

Which of the following is another

characteristic of gold?

A Rapuh Brittle

B Boleh ditempa Malleable

C Reaktif Reactive

D Penebat haba Heat insulator


11. Rajah 3 menunjukkan satutindak balas antara zink danasid sulfurik cair.

Diagram 3 shows a reaction

between zinc and dilute sulphuric

acid.

2008

0

Gas YGas Y

ZinkZinc

Asid sulfurikSulphuric acid

Gelembung gasGas bubble

Rajah 3 / Diagram 3

Apakah gas Y? What is gas Y?

A Nitrogen / Nitrogen

B Oksigen / Oxygen

C Hidrogen / Hydrogen

D Klorin / Chlorine

Mudah Pengetahuan

5 55.5 Elektrolisis

12. Rajah 4 menunjukkan satuproses yang berlaku dalamsatu sel elektrolisis.

Diagram 4 shows a process that

occurs in an electrolytic cell.

P

+

+

Rajah 4 / Diagram 4

ApakahP? What is P?

A Katod C Kation Cathode Cation

B Anod D AnionAnode Anion

Mudah Pengetahuan

13. Rajah 5 menunjukkan satuelektrolisis.

Diagram 5 shows an electrolysis.

SuisSwitch

MentolBulb

ElektrodgrafitGraphiteelectrodes

Bahan PSubstanceP

Rajah 5 / Diagram 5

2008

Apabila air ditambah kedalam bahanP, mentol itumenyala. Apakah bahanP?

When water is added to

substance P, the bulb lights up.

What is substance P?

A Gula

Sugar

B SulfurSulphur

C Natrium kloridaSodium chloride

D KanjiStarch


14. Rajah 6 menunjukkan

bagaimana elektrolisisdigunakan untukmenyadurkan satu objekdengan nikel.

Diagram 6 shows how

electrolysis is used to

electroplate an object with nickel.

NikelNickel

A

ObjekObject

Nikel(II) nitratNickel(II) nitrate

Rajah 6 / Diagram 6

Ramalkan apa yang akanberlaku di anod.

Predict what will happen at the

anode.

A Jisim berkurang. Mass decreases.

B Jisim bertambah. Mass increases.

C Gas dibebaskan. Gas is released.

D Nikel terenap. Nickel is deposited.

Sukar Pemahaman

2009



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15. Rajah 7 menunjukkansatu eksperimen untukmenentukan urutanlogam-logam mengikutkereaktifannya.

Diagram 7 shows an experimentto determine the order of

reactivity of metals.

Campuran karbondan oksida logam

Mixture of carbonand metal oxide

Alas segitiga tanahliatPipe-claytriangle

Mangkuk pijarCrucible

Rajah 7 / Diagram 7

Keputusan ditunjukkan dalamJadual 2.

The results are shown in Table 2.

Oksida

logamMetal oxide

PemerhatianObservation

OksidaPOxide P

Membara

dengan malapGlows dimly

Oksida QOxide Q

Membara

dengan terangGlows brightly

OksidaROxide R

Tiada tindak

balasNo reaction

Jadual 2 /Table 2

Berdasarkan pemerhatian,susunP, QdanRdalamtertib menurun mengikutkereaktifannya.

Based on the observation,

arrange P, Q and R in decreasing

order of reactivity.

A P,R, Q C Q,P,R

B R,P, Q D R, Q,P

Sederhana Pemahaman

16. Rajah 8 menunjukkanpenyaduran satu sudu besidengan perak.

Diagram 8 shows the

electroplating of an iron spoon

with silver.

2007

SuduSpoon

PerakSilver

ElektrolitElectrolyte

A

Rajah 8 / Diagram 8

Larutan yang manakah sesuaidigunakan sebagai elektrolit?

Which solution is suitable to be

used as the electrolyte?

A Kuprum sulfat Copper sulphate

B Argentum nitrat

Silver nitrate

C Natrium klorida Sodium chloride

D Natrium hidroksida Sodium hydroxide

Sukar Pengetahuan

Tenaga Elektrik

daripada Tindak

Balas Kimia

5 65.6

17. Bateri Ydigunakan dalam

kereta dan boleh dicassemula. Apakah Y?

Battery Y is used in cars and is

rechargeable. What is Y?

A Sel merkuri A mercury cell

B Sel kering A dry cell

C Bateri nikel-kadmium A nickel-cadmium battery

D Akumulator asid-plumbumA lead-acid accumulator

Sukar Pengetahuan

18. Satu jenis sel mempunyaisifat-sifat berikut:

A type of cell has the following

properties:

2008

2007

Boleh dicas semula Rechargeable

Ringan Light

Digunakan untuk

menghidupkan alatelektrik yang mudahdibawa

Used to power portable

electrical devices

Voltan malar Constant voltag

Apakah sel itu? What is the cell?

A Akumulator asid-plumbum

Lead-acid accumulator

B Sel kering Dry cell

C Bateri argentum oksida-merkuri

Silver oxide-mercury battery

D Bateri nikel-kadmium Nickel-cadmium battery


5 75.7 Cahaya dan Tindak

Balas Kimia

19. Persamaan berikut

menunjukkan satu tindakbalas. The following equation shows a

reaction.

Argentumbromida Argentum + Bromin

SilverSilver + Bromine

bromide

Apakah syarat yangdiperlukan supaya tindak

balas ini berlaku? What is the condition required for

this reaction to happen?

A Ais Ice

B Cahaya Light

C Tekanan tinggi High pressure

D MangkinCatalyst

Mudah Pengetahuan

2009



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5 85.8 Usaha-usaha Inovasi Dalam Rekaan Alatan Menggunakan Tindak Balas Kimia

Sebagai Sumber Tenaga

20. Antara yang berikut, yang manakah betul bagi bateri argentum oksida-merkuri? Which of the following is true for a silver oxide-mercury battery?

A Boleh dicas semula Rechargeable

B Murah

Cheap

C Tidak mudah dibawa

Not portable

D Arus malar

Constant currentSederhana

Aplikasi

Bahagian A /Section A

1. Rajah 1 menunjukkan satu eksperimen untuk mengkaji perubahan haba dalam tindak balas kimia. Peletnatrium hidroksida 1 g diletakkan dalam satu tabung uji yang mengandungi air suling 5 cm 3. Tabung uji itudipegang dengan meletakkan tangan di sekeliling tabung uji dan campuran itu digoncang sehingga natriumhidroksida dilarutkan. Eksperimen ini diulang dengan menggunakan ammonium nitrat.

Diagram 1 shows an experiment to study heat changes in chemical reactions. 1 g of sodium hydroxide pellets is placed

in a test tube containing 5 cm3of distilled water. The test tube is held by placing the hand around the test tube and the

mixture is shaken until sodium hydroxide is dissolved. The experiment is repeated using ammonium nitrate.

Mudah Subtopik 5.2

NatriumhidroksidaSodiumhydroxide

Air suling 5cm3

5 cm3ofdistilled water

Rajah 1 / Diagram 1

Soalan Subjektif



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Keputusan ditunjukkan dalam Jadual 1. The results are shown in Table 1.

Tindak balasReaction

GaramSalt

PemerhatianObservation

I Natrium hidroksidaSodium hydroxide

Rasa panasFeels warm

II Ammonium nitratAmmonium nitrate

Rasa sejukFeels cold

Jadual 1 / Table 1

(a) Tindak balas yang manakah adalah endotermik? Which reaction is endothermic?

[1 markah / 1mark]

(b) Tindak balas yang manakah membebaskan haba? Which reaction gives out heat?

[1 markah / 1mark]

(c) Apakah pemboleh ubah dimanipulasikan dalam eksperimen ini? What is the manipulated variable in this experiment?

[1 markah / 1mark]

(d) Apakah pemboleh ubah dimalarkan dalam eksperimen ini? What is the constant variable in this experiment?

[1 markah / 1mark]

(e) Jika termometer diletakkan dalam tabung uji, ramalkan perubahan yang berlaku pada bacaan termometerbagi tindak balas II.

If a thermometer is placed in the test tube, predict the changes that occur in the thermometer reading for reaction II.

[1 markah / 1mark]

KBSB

KBSB Soalan 1(a): Mencirikan Soalan 1(b): Pemerhatian Soalan 1(c), 1(d): Mengawah pemboleh ubah Soalan 1(e): Meramalkan



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2. Rajah 2 menunjukkan satu eksperimen untuk mengkaji kereaktifan logam terhadap oksigen. Logam Pdipanaskan dengan kuat, kemudian kalium manganat(VII) dipanaskan. Eksperimen ini diulang denganmenggunakan logam-logam QdanR.

Diagram 2 shows an experiment to study the reactivity of metals with oxygen. Metal P is heated strongly, then potassium

manganate(VII) is heated. The experiment is repeated using metals Q and R.Sederhana Subtopik 5.3

Kaliummanganat(VII)Potassiummanganate(VII)

LogamP

MetalP

PanaskanHeat

PanaskanHeat

Kapas kacaGlass wool

Rajah 2 / Diagram 2

Pemerhatian eksperimen ini direkodkan dalam Jadual 2. The observations for this experiment is recorded in Table 2.

Logam /Metal

Pemerhatian /Observation

P Membara dengan terang / Glows brightly

Q Membara dengan malap / Glows dimly

R Menyala dengan terang/ Burns brightly

Jadual 2 / Table 2

(a) Susun logam-logam di atas dalam tertib menurun mengikut kereaktifannya terhadap oksigen. Arrange the above metals in decreasing order of reactivity with oxygen.

[1 markah / 1mark]

(b) Nyatakan hipotesis bagi eskperimen ini. State the hypothesis for this experiment.

[1 markah / 1mark]

(c) Nyatakan pemboleh ubah dalam eksperimen ini. State the variables in this experiment.

(i) Pemboleh ubah dimanipulasikan:/ Manipulated variable:

[1 markah / 1mark]

(ii) Pemboleh ubah bergerak balas:/ Responding variable:

[1 markah / 1mark]

(iii) Pemboleh ubah dimalarkan:/ Constant variable:

[1 markah / 1mark]

KBSB

KBSB Soalan 2(a): Membuat urutan Soalan 2(b): Membuat hipotesis Soalan 2(c): Mengawal pemboleh ubah



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Bahagian B /Section B

3. Rajah 3 menunjukkan satu eksperimen untuk mengkaji perubahan fizik satu bahan. Beberapa hablur iodindiletakkan dalam satu bikar dan bikar itu ditutupi dengan satu piring kaca. Kemudian, bikar itu dipanaskandengan perlahan.

Diagram 3 shows an experiment to study the physical change of a substance. A few iodine crystals are placed in a beaker

and the beaker is covered with a watch glass. Then, the beaker is heated slowly. Sukar Subtopik 5.1

Piring kacaWatch glass

Hablur iodinIodine crystal

Kasa dawaiWire gauze

Rajah 3 / Diagram 3

Seorang pelajar merekodkan pemerhatian berikut. A student records the following observations.

Apabila hablur-hablur iodin dipanaskan, wap ungu dibebaskan. Hablur-hablurhitam kecil terbentuk di bawah piring kaca.When iodine crystals are heated, purple vapour is released. Tiny black crystals are formed

at the bottom of the watch glass.

(a) Kenal pasti wap ungu itu. Identify the purple vapour.

[1 markah / 1mark]

(b) Namakan proses perubahan fizik yang terlibat apabila pepejal iodin bertukar menjadi wap ungu.

Name the process of the physical change involved when the iodine solid changes to purple vapour.

[1 markah / 1mark]

(c) Berikan duasebab mengapa perubahan di atas dianggap sebagai perubahan fizik. Give tworeasons why the above change is considered a physical change.

[2markah / 2marks]

(d) Nyatakan dengan satu sebab sama ada sifat kimia hablur hitam kecil itu sama dengan sifat kimia

hablur iodin. State with one reason whether the chemical properties of the tiny black crystals are the same as the chemical

properties of the iodine crystals.

[1 markah / 1mark]

KBSB

KBSB

KBSB

KBSB

KBSB Soalan 3(a), 3(b): Mencirikan Soalan 3(c), 3(d): Menganalisis



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Bahagian C /Section C

4. Kaji pernyataan berikut. Sukar Subtopik 5.4

Study the following statement.

Karbon terletak di antara aluminium dengan zink dalam siri kereaktifan.

Carbon is positioned between aluminium and zinc in the reactivity series.

Anda diberikan bahan kimia berikut. You are given the following chemicals.

Karbon / Carbon

Aluminium oksida / Aluminium oxide

Zink oksida / Zinc oxide

Kuprum oksida / Copper oxide

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

(b) Huraikan satu eksperimen untuk menguji hipotesis di4(a) berdasarkan kriteria berikut. Describe an experiment to test your hypothesis in 4(a) based on the following criteria.

(i) Tujuan eksperimen

Aim of the experiment [1markah / 1mark]

(ii) Pengenalpastian pemboleh ubah

Identification of variables [2markah / 2marks]

(iii) Senarai radas dan bahan

List of apparatus and materials [1markah / 1mark]

(iv) Prosedur atau kaedah

Procedure or method [4markah / 4marks]

(v) Penjadualan data

Tabulation of data [1markah / 1mark]

5. (a) (i) Namakan satu sel yang boleh digunakan sebagai sumber tenaga untuk satu telefon bimbit.

Name a cell that can be use as a source of energy for a hand phone. [1markah / 1mark]

(ii) Nyatakan dua kebaikan dan dua keburukan menggunakan sel ini.

State two advantages and two disadvantages of using this cell. [4markah / 4marks]

(b) Seorang wanita mendapati cincin besi pada jarinya mempunyai permukaan yang pudar. A woman found that an iron on her finger has a dull surface.

Jelaskan bagaimana dia boleh membuat cincin besi tersebut lebih menarik dengan satu permukaan

perak yang berikut. Explain how she can make her iron ring more attractive with a silvery shiny surface.

Penerangan anda hendaklah mengandungi aspek-aspek berikut: Your explanation should contain the following aspects:

Kenal pasti masalah

Identify the problem Kaedah yang digunakan The method used

Penjelasan kaedah Explanation of the method

[1markah / 1mark]

Soalan 4(a): Membuat hipotesis Soalan 4(b): Melaksanakan eksperimen

131744843 soalan latihan tingkatan 4 bab 5

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