pmr trial exam

7/29/2019 pmr trial exam

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SULIT 55/2

Nama : .. No Maktab : ..

SULIT 55/2

55/2

Sains

Kertas 2

Ogos

2009

1 ja m

MAKTAB RENDAH SAINS MARA

PEPERIKSAAN PERCUBAAN

PENILAIAN MENENGAH RENDAH 2009

SAINS Untuk Kegunaan Pemeriksa

Kertas 2 MarkahBahagian Soalan Markah

Penuh DiperolehSatu jam tiga puluh minit

1 6

JANGAN BUKA KERTAS SOALAN INI 2 6SEHINGGA DIBERITAHU

1 Tulis nama dan kelas anda pada ruang 3 6yang disediakan. A

4 72 Kertas soalan ini adalah dalam dwibahasa.

5 73 Soalan dalam bahasa Inggeris mendahului

soalan yang sepadan dalam bahasa 6 8Melayu.

7 104 Calon dibenarkan menjawab keseluruhan B

atau sebahagian soalan sama ada dalam 8 10bahasa Inggeris atau bahasa Melayu.

Jumlah 605 Calon dikehendaki membaca maklumat di

halaman belakang kertas soalan ini.

Kertas Soalan ini mengandungi 28 halaman ber cetak

[Lihat sebelah

155/2 2009 Hak Cipta BPL(M) MARA SULIT


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For SULIT 55/2Examiners

UseSection A

Bahagian A

[40 marks]

[40 markah ]

Answerall questions.

Jawab semuasoalan.

1 Diagram 1 shows the human excretory system.Rajah 1 menunjukkan sistem perkumuhan manusia.

P : ..

Q : ..

R : .

Diagram 1

Rajah 1

(a) On Diagram 1, label the organs P, Q and Rusing the following words:

Pada Rajah 1, labelkan organ P, Q dan R menggunakan perkataan berikut:

Skin Lung Kidney

Kulit Peparu Ginjal

1(a)

[3 marks]

[3 markah]



3/40

ForSULIT 55/2Examiners

Use(b) Draw lines to match each system of the human body with its function.

Lukis garisan untuk memadankan setiap sistem badan manusia dengan

fungsi masing-masing.

System Function

Sistem Fungsi

To defend the body against disease.

Untuk mempertahankan badan terhadap

penyakit.

To digest food so that it can be readilyabsorbed.

Untuk mencernakan makanan supaya ia

mudah diserap.

To transmit messages to every part of

the body.Untuk menghantar maklumat ke seluruh

bahagian badan.

To support the weight of the body and

protect internal organs.

Untuk menyokong berat badan dan

melindungi organ dalaman.

1(b)

[3 marks][ 3 markah ]

Total A1

6



4/40


Use2 Diagram 2.1 shows a situation at a camp site.

Rajah 2.1 menunjukkan situasi pada tapak perkhemahan.

Owl

Burung hantu

Ir on rod

Rod besi

Boy HBudak lelaki H

Diagram 2.1

Rajah 2.1

(a) Based on Diagram 2.1, state the way of heat transfer from the burning firewoodto:

Berdasarkan Rajah 2.1, nyatakan cara pemindahan haba dari unggun api ke:

(i) owl / burung hantu : .

(ii) boy H / budak lelaki H : .....

(iii) iron rod / rod besi : .....2(a)

[3 marks]

[3 markah]



5/40


Use(b) Diagram 2.2 shows two different mugs, M and N containing equal volume of

hot coffee left to cool for 10 minutes.

Rajah 2.2 menunjukkan dua mug, Mdan Nmengandungi air kopi panas

dengan isipadu yang sama dibiarkan menyejuk selama 10 minit.

White ceramic mug Black ceramic mugM NMug seramik putih Mug seramik hitam

Diagram 2.2Rajah 2.2

Based on Diagram 2.2,

Berdasarkan Rajah 2.2,

(i) state how most heat is lost from the hot coffee?nyatakan bagaimana haba paling banyak hilang daripada kopi panas?

.......................................................................................................................... 2(b)(i)[1 mark]

[1 markah]

(ii) coffee in which mug will cool faster?

Give the reason for the chosen mug.

kopi dalam mug yang manakah akan menyejuk dahulu?Berikan sebab bagi mug yang dipilih.

Mug / mug : .........

Reason / sebab : .....................................................................................

..................................................................................... 2(b)(ii)[2 mark]

[2 markah]

Total A2

6



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Use3 Diagram 3.1 shows the distribution of organisms J, K, L and M in a habitat.

Rajah 3.1 menunjukkan taburan organisma J, K, L dan Mdalam satu habitat.

JM M JK

K LJJ

JMJ J

ML K

M MJJ MK

JMJK

Diagram 3.1

Rajah 3.1

(a) Based on Diagram 3.1,


(i) which organism represents the secondary consumer?

organisma manakah yang mewakili pengguna sekunder?

3(a)(i)

[1 mark]

[1 markah]

(ii) build a complete food chain.

binakan rantai makanan yang lengkap.

3(a)(ii)

[1 mark]

[1 markah]



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Use(iii) Circle the animals which may represent M.

Bulatkan haiwan yang mewakili M.

Tiger Grass Cow

harimau Rumput lembu 3(a)(iii)

[1 mark][1 markah]

(b) Producers synthesize food through photosynthesis. State the source of energy

for the process.

Pengeluar mensintesis makanan melalui fotosintesis. Nyatakan sumber tenagabagi proses ini.

................................................................................................................................ 3(b )

[1 mark]

[1 markah]

(c) Diagram 3.2 shows the apparatus set up to study a factor needed for

photosynthesis.

Rajah 3.2, menunjukkan susunan radas bagi mengkaji satu faktor yangdiperlukan untuk fotosintesis.

Black paper

Kertas hitam

Diagram 3.2

Rajah 3.2

(i) The plant is kept in the dark for two days, then exposed to sunlight.

Why is the plant kept in the dark?

Tumbuhan diletakkan dalam gelap selama dua hari, kemudian didedahkankepada cahaya matahari.

Mengapa tumbuhan itu diletakkan dalam gelap?

......................................................................................................................... 3(c)(i)

[1 mark]

[1 markah]



8/40


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Use4 Diagram 4.1 shows a female reproductive system.

Rajah 4.1 menunjukkan sistem pembiakan perempuan .

R


(a) (i) Based on Diagram 4.1 , name the part labeled R.

Berdasarkan Rajah 4.1, namakan bahagian berlabel R .

4(a)(i)

[1 mark]

[1 markah]

(ii) Q is the place where the process of fusion between nucleus of sperm andovum to form a zygote. Label Q in Diagram 4.1.

Q adalah tempat di mana proses persenyawaan antara nukleus sperma dan

ovum bagi pembentukkan zigot. Labelkan Q dalam Rajah 4.1. 4(a)(ii)

[1 mark]

[1 markah]



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Use(b) Diagram 4.2 shows a method of birth control in female reproductive system.

Rajah 4.2 menunjukkan satu kaedah pencegahan kehamilan dalam sistem

pembiakan perempuan .

Device K

AlatK

Diagram 4.2

Rajah 4.2

Based on the Diagram 4.2,


Name the device K : .

Namakan alatK

Describe how it works.

Terangkan bagaimana ia berfungsi.

..

..

..

..4(b)

[2 marks]

[2 markah]



11/40


12/40


Use5 Diagram 5.1, shows two types of generator M and N.

Rajah 5.1, menunjukkan dua jenis penjana M dan N.

TurbineTurbineTurbinTurbin

M N

Diagram 5.1

Rajah 5.1

(a) (i) State the source of energy used by each generator.

Nyatakan sumber tenaga yang digunakan oleh setiap penjana.

M :

N : 5(a)(i)

[2 marks]

[2 markah]

(ii) State the energy change involved in generator M.Nyatakan perubahan tenaga yang terlibat dalam penjana M.

.5(a)(ii)

[1 mark][1 markah]



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UseDiagram 5.2 shows electricity transmission and distribution system.

Rajah 5.2 menunjukkan sistem penghantaran dan pengagihan elektrik.

National Grid Network

Rangkaian Grid Nasional

J

K

Diagram 5.2

Rajah 5.2

(b) (i) J and Kare two types of transformers.

State the difference in the function of J and K.

Jdan Kmerupakan dua jenis tranformer.

Nyatakan perbezaan fungsi Jdan K.

5(b )(i)

[1 mark]

[1 markah]

(ii) What is the advantage of National Grid Network?

Apakah kelebihan Rangkaian Grid Nasional?

5(b )(ii).....

[1 mark]

[1 markah]



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Use(c) Diagram 5.3, shows an electric rice cooker.

Rajah 5.3, menunjukkan sebuah periuk nasi elektrik.

Diagram 5.3

Rajah 5.3

Calculate the current flow in an electric rice cooker labeled 3000 watts and

240 volts. Suggest the most suitable fuse that can be used.

Use the following formula:

Hitungkan arus yang mengalir dalam periuk nasi elektrik yang bertanda3000 watt dan 240 volt. Cadangkan nilai fius yang paling sesuai digunakan.

Gunakan formula berikut:

Current = Power

Voltage

Arus = Kuasa

Voltan

The most suitable fius can be used is : ___________ A5(c)

Fius yang paling sesuai digunakan ialah

[2 marks]

[2 markah]Total A5



15/40


Use6 Diagram 6.1 shows a man pulling a load of 50kg up an inclined plane to the

platform (Assume 1kg = 10N).

Rajah 6.1 menunjukkan seorang lelaki menarik beban 50kg menaiki satah condong

ke pelantar (Andaikan 1kg = 10N).Platform

Pelantar

2 metreLoad 2 meter

Beban

Diagram 6.1

Rajah 6.1

(a) (i) In the box provided in Diagram 6.1, draw an arrow to show the directionof force that opposes the motion of load.

Dalam kotak yang disediakan pada Rajah 6.1, lukiskan anak panah bagi

menunjukkan arah daya yang menentang pergerakan beban. 6(a)(i)

[1 mark]

[1 markah]

(ii) Name the force for the answer in (a)(i).

Namakan daya bagi jawapan dalam (a)(i).

6(a)(ii)

[1 mark]

[1 markah]

(iii) Calculate the work done. Use the following formula:

Hitungkan kerja yang dilakukan. Gunakan formula berikut:

Work done = Force X Distance

Kerja = Daya X Jarak

Work done : . Nmkerja 6(a)(iii)

[1 marks]

[1markah]



16/40


17/40

SULIT 55/2 ForExaminers

Use(c) Diagram 6.3 shows, a man find it is hard to push a trolley with stuck tyres.

Rajah 6.3 menunjukkan seorang lelaki mendapati sukar untuk menolak troli

yang tayarnya tersekat.

Diagram 6.3

Rajah 6.3Based on diagram 6.3,Berdasarkan Rajah 6.3,

(i) State one way to overcome the problem without unloading the trolley.

Nyatakan satu cara untuk menyelesaikan masalah ini tanpa mengeluarkan

beban di dalam troli.

. 6(c)(i)

[1 mark]

[1 markah]

(iii) State the effect, if the problem is not overcome?Apakah kesan, sekiranya masalah ini tidak diselesaikan?

.

.

. 6(c)(ii)

[1 mark]

[1 markah]

Total A6

8



18/40


UseSection B

Bahagian B

[20marks][20 markah]

Answerall questions.Jawab semuasoalan.

7 Diagram 7.1 shows four types of plants with different support systems.Rajah 7.1 menunjukkan empat jenis tumbuhan dengan sistem sokongan berbeza.

Orchid Cucumber

Orkid Timun

Rose Mangrove tree

Ros Pokok paya bakau

Diagram 7.1

Rajah 7.1

(a) State the parts of the plants that provide additional support to each of the plants.

Nyatakan bahagian tumbuhan yang membeir sokongan tambahan pada setiaptumbuhan.

Plants Additional support partTumbuhan Bahagian sokongan tambahan

Orchid

Orkid

CucumberTimun

Rose

Ros

Mangrove tree

Pokok paya bakau7 (a)

[4marks]

[4markah]



19/40


Use(b) Classify the plants into two groups based on the part that provide additional

support.

Kelaskan tumbuhan kepada dua kumpulan berdasarkan pada bahagian yang

memberi sokongan tambahan.

Orchid, cucumber, mangrove tree, rose

Orkid, timun, pokok paya bakau, ros

Common characteristicsCiri sepunya

Name of the plant

Nama tumbuhan

7(b)

[4 mark]

[4 markah]



20/40


Use(c) Diagram 7.2 shows an activity to study the support system in a plant.

Rajah 7.2 menunjukkan satu aktiviti yang dijalankan untuk mengkaji sistem

sokongan dalam tumbuhan.

Beaker Q

Bikar Q

Water

air

Aquatic plant

Tumbuhan akuatik Weight

pemberat


Based on Diagram 7.2, state one inference from the activity.

Berdasarkan Rajah 7.2, nyatakan satu inferens daripada aktiviti ini.

7(c)

[1 mark]

[1 markah]

(d) Predict what will happen to the aquatic plant if the weight is remove frombeaker Q.

Ramalkan apa yang berlaku pada tumbuhan akuatik apabila pemberat

dikeluarkan dari bikar Q.7(d)

Total A7[1 mark]

[1 markah]10



21/40

SULIT 55/2 ForExaminers

Use8 Diagram 8.1 shows a sugar cube of similar size added to glass P and Q.

After five minutes, the size of sugar cube is as shown in the diagram.

Rajah 8.1 menunjukkan satu gula kiub yang sama saiz dimasukan ke dalam gelas P

dan Q. Selepas lima mini,, saiz gula kiub ditunjukkan dalam Rajah.

Conditon Before After

Keadaan Sebelum Selepas

100ml water at 80o C

in glass P

100ml air pada suhu80 C dalam cawan Po

100ml water at 35o C

in glass Q

100ml air pada suhu35 C dalam cawan Qo


Based on your observation in diagram 8.1,

Berdasarkan pada pemerhatian daripada Rajah 8.1,

(a) (i) What inference can be made?

Apakah inferens yang boleh dibuat?

8(a)(i)

[1 mark]

[1 markah]

(ii) State one hypothesis.

Nyatakan satu hipotesis.

8(a)(ii)

[1 mark]

[1 markah]



22/40


Useb) Diagram 8.2 shows the apparatus set-up to study the effect of water temperature

on the rate of dissolving.

Rajah 8.3 menunjukkan susunan radas bagi mengkaji kesan suhu air ke atas

kadar ketelarutan.

Stir

KacauThermometer

Jangka suhu

5g of fine sugar

5g gula halus

Diagram 8.2

Rajah 8.2

The student takes the following the steps:Pelajar itu menjalankan langkah-langkah di berikut:

Step 1 : Fill a beaker with 100 ml distilled water at 40 0 C

Langkah 1 : Isikan sebuah bikar dengan 100ml air suling bersuhu 40 0 C

Step 2 : Add 5 grams of fine sugar to the water.

Langkah 2 : Tambahkan 5 gram gula halus ke dalam air.

Step 3 : Stir the mixture.

Langkah 3 : Kacau larutan tersebut.

Step 4 : Record the time taken for the fine sugar completely dissolve.

Langkah 4 : Catatkan masa yang diambil untuk gula halus larut

sepenuhnya.

Step 5 : Repeat steps 1 to 3 are by using temperature water at 50 C,0

60 C, 70 C and 80 C.0 0 0

Langkah 5 : Ulang langkah 1 hingga 3 dengan menggunakan air bersuhu

500 C, 60 0 C, 700 C and 800 C.



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24/40


25/40


Use(ii) State the variables involved in this experiment:

Nyatakan pembolehubah yang terlibat dalam eksperimen ini:

Manipulated variable

Pembolehubah dimanipulasikan

Responding variable

Pembolehubah bergerak balas

Constant variable Volume of water // mass of fine sugar

Pembolehubah dimalarkan Isipadu air // jisim gula halus

8(b)(ii)

[2 marks]

[2 markah ]

(iii) Use the graph provided on page 26 to answer this part of the question.

Gunakan graf yang disedikan dihalaman 26 untuk menjawap bahagian soalan ini.

Based on the reading in Table 8.4, draw a graph of time against temperature.

Berdasarkan bacaan dalam Jadual 8.4, lukis graf masa lawan suhu.



26/40


UseGraph for Question 8(b)(iii)

Graf untuk soalan 8(b)(iii)

Time / sMasa / s

100

80

60

40

20

Temperature / C020 40 60 80 100Suhu / C0

8(b)(iii)

[2 marks][2 markah]



27/40


Use(c) Based on Graph 8(b)(iii), state the relationship between the temperature of

water and the time taken for sugar to dissolve completely.

Berdasarkan Graf 8(b)(iii), nyatakan hubungan antara suhu air dan kadargula

larut sepenuhnya.

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

................................................................................................................................ 8(c)[1 mark]

[1 markah]

(d) Predict the time taken for fine sugar to dissolve completely in 100ml water at

650 C.

Ramalkan masa yang di ambil untuk gula halus larut sepenuhnya dalam100ml air yang bersuhu 65 C .0

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

................................................................................................................................ 8(d)

[1 mark][1 markah]

(e) Define operationally the meaning of the rate of dissolving.

Definasikan secara operasi kadar ketelarutan .

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

................................................................................................................................ 8(e)

[1 mark]

[1 markah]

Total A8

10

END OF THE QUESTIONS

KERTAS SOALAN TAMAT



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SULIT 55/2

INFORMATION FOR CANDIDATES

MAKLUMAT UNTUK CALON

This question paper consists of two sections: Section A andSection B .Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B.

Write your answers in the spaces provided in the question paper .

Tulis jawapan anda dalam ruang yang disediakan dalam kertas soalan. .

Show your working, it may help you get marks .

Tunjukkan kerja kira-mengira, ini membantu anda mendapat markah .

If you wish to change your answer, neatly cross out the answer that you have done. Then

write down the new answer.Sekiranya anda hendak menukar jawapan, batalkan dengan kemas jawapan yang telah

dibuat. Kemudian tulis jawapan yang baru.

The diagrams in the questions provided are not drawn to scale unless stated.

Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

Marks allocated for each question or part question are shown in the brackets.

Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam

kurungan.

The time suggested to answer Section A is 60 minutes and Section B is 30 minutes.

Masa yang dicadangkan untuk menjawab Bahagian A ialah 60 minit dan Bahagian B

ialah 30 minit.

You may use a non-progammable scientific calculator.

Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram.

Hand in this question paper at the end of the examination.

Serahkan kertas soalan ini di akhir peperiksaan..



29/40

@2009 Hakcipta MARA SULIT

55/2

SCIENCE

OGOS, 2009

1 hour

MAKTAB RENDAH SAINS MARAPEPERIKSAAN PERCUBAAN

PENILAIAN MENENGAH RENDAH 2009

ANSWER SCHEME

SCIENCE PMR

PAPER 2

Question Mark Scheme Marks

1(a) Able to label P, Q and R correctly

AnswerP : Lung // Peparu 1

Q: Skin // Kulit 1

R: Kidney // Ginjal 1 3

Note:

Tak boleh salah ejaan(b) Able to system of the human body with its function correctly

Answer

1

1

1 3

Note:Mark wrong if one system is matched with more than one function or

vice versa.

Total 6

SULIT 1


30/40



2(a) Able to state how heat is transferred correctly

i) Owl / Burung hantu : Convection // Radiation 1

Perolakan // Radiasi

ii) Boy H / Budak lelaki H: Radiation // Radiasi 1

iii) Iron rod / Rod besi: Conduction // Konduksi 1 3

(b)(i) Able to state the method of heat lost correctlyRadiation // radiasi 1 1

(ii) Able to identify coffee in which mug will cool faster

N // Black ceramic mug 1

Mug seramik hitam

Able to give correct reasonBlack mug is a good radiator // give out heat better

Mug hitam adalah pemancar haba yang baik // membebaskan / 1 2

menghilangkan haba lebih baik

Total 6

SULIT 2


31/40



3(a)(i) Able to state the organism correctlySample answers

K 1 1

Note:

Accept symbol with letter

(ii) Able to build a complete food chain correctlySample answers 1 1

J M K L

Note:mesti terdiri dari 4 organisma

huruf mesti sama dalam soalan

(iii)

Able to circle the correct animal which may M

Answer1 1

(b)

Able to state the source of energy correctly.Answer

1 1Sun // Sunlight

Matahari // suria // solar

Note:Also accept light

(c)(i)

Able the give reason why plant kept in the dark correctly.

1 1AnswerTo destarch / remove starch // to prevent photosynthesis

Menyahkan / menghilangkan kanji // menghalang fotosintesis(ii)

Able to shade the part of the leaf that turns blue black correctly

Answer

Note: 1 1

Part that turn blue black

6

Note:Must shade both part to get one mark.

SULIT 3


32/40



4(a)(i) Able to name the part R correctlyAnswer

Uterus (wall) // Lining of the uterus 1 1

(Dinding) rahim // Pelapik uterus

Note:

Also accept womb

(ii) Able to label Q where fertilization occur correctly

Answer

Q

1 1

Able to name device K and describe how it work correctly(b)

Answer1

Name of device : IUCD (Intrauterine contraceptic device) // IUD

Describe how its work: Prevent implantation (of fertilized ovum) /1 2

embryo

Menghalang penempelan (ovum yang telah

disenyawakan) / embrio

Note:

Name Describe Mark

/ / 2 marks

/ X 1 mark

X / O mark

Able to mark wind pollinated flower correctly(c)(i)

1 1

SULIT 4


33/40



Able to explain correctly(ii) Sample answers

1. pt1. (Characteristic)

- Has a large / long / feathery stigma // Stigma outside the flower

/ with long style 1

Mempunyai stigma besar / panjang / berbulu // Stigma beradadiluar bunga / dengan stil yang panjang.

pt2. (function)

- Expose to wind // to trap pollen (effectively)Terdedah kepada angina // untuk memerangkap butir debunga 1 2

Or

2. pt1. (Characteristic)

- Long filament // Stamen dangle / hang outside the flowerFilamen panjang // Stamen tergantung di luar bunga

pt2. (function)- Expose pollen grain to wind

Mendedahkan butir debunga ke angin

Note:

Any one correct pair

(Charteristic + function)

Total 7

SULIT 5


34/40



5(a)(i) Able to state the source of energy used in M and N correctly.Answer 1

M : Water / hydro

Air

N : Natural gas / petroleum 1 2

Gas asli // petroleumReject:

Hydroelectric

(ii) Able to state the energy change involved in generator M correctly .Sample answers

- Potential (energy) Kinetic (ener gy) Electric (energy) // 1 1

- Potential (energy) (mechanical) Kinetic (energy)

Electric (energy) //

- Potential(Energy) Kinetic(energy) Mechanical(energy)Electric (energy)

(Any one only)

(b)(i) Able to state the dif ference between in the function of J and K.

AnswersTransformerJ will increase the (output) voltage while Kwill lower the 1 1

(output) voltage

Transformer Jakan menambahkan voltan (output) sementara Kakan

merendahkan voltan (output).

Note:Should have comparison between J and K

(ii) Able to give the advantage of National Grid Network correctlySample answers

- To ensure uninterrupted electrical power supply // 1 1Untuk memastikan bekalan kuasa electric tidak terganggu

- To prevent the wastage of electrical energy / lessen the cost

Untuk mengelakkan pembaziran tenaga electric / menggurangkan kos

- Enable any particular power plant to be shut down for maintenance.

Membenarkan mana-mana stesen kuasa ditutup bagipenyelenggaraan.

(Any one only)

SULIT 6


35/40



5(c) Able to calculate the current flow and give suitable fuse in an

electric rice cooker correctlyAnswer

Current = 3000

240= 12.5 A 1

Most suitable fuse: 13 A 1 2

Reject:Other answer

Total 7

SULIT 7


36/40



6(a)(i) Able to draw direction of force correctlySample answers

1 1

Able to give name the force for the answer in(a)(i).(ii) Answers

Frictional force 1 1

Daya geseran

Able to calculate the work done(iii) Answer

Work done = (50 X 10) X 2 1 1

= 1000 Nm

Able to state the mountain bike that is suitable to ride up a hill.Answer

b(i) (Bicycle) Q 1 1

Able to explain for answer in (b)(i).Answer

(ii) pt1. The surface of the tyre has more threads / is rougher 1

Permukaan tayar yang mempunyai lebih bunga / benang / kasar.

pt2. To increase the frictional force /grip the surface (of the hill) better. 1 2Menambahkan daya geseran / cengkaman pada permukaan

(bukit) lebih baik.

Able to state one way to overcome the problem correctly.

Sample answerc(i) Apply oil / grease / lubricant to the tyre. 1

Menggunakan minyak / gris / pelincir pada tayar.

Able to state the effect correctly.

Sample answer(ii) - Waste/ use a lot energy // membazirkan tenaga 1 2

- Produces unnecessary heat // noise // menghasilkan bunyi yang tidak

diperlukan

- The tyre will wear out quickly // hauskan tayar lebih cepat(Any one)

total 8

SULIT 8


37/40



7(a) Able to state part of the plant at provide additional support.Sample answers

Type of plant Part of additional support

Orchid Roots / clasping roots 1

Akar / akar cengkamCucumber Stem /tendrils 1

Batang / sulur paut

Rose Stem / thorns 1Batang / duri

Mangrove Roots / stilt roots 1 4

Akar / akar jangkang

(b) Able to state the common characteristics and name the plant

correctly.

Sample answers

Orchid, cucumber, mangrove tree, rose

Orkid, timun, pokok paya bakau, ros

1. (Additional) support 1. (Additional) support 2through roots through stem

2. (Additional) support 2. (Additional) support

through roots not through roots

3. (Additional) support 3. (Additional) support

through stem / tendrils not through stem / tendrils

2 41. cucumber, rose1. orchid, mangrove tree

2. cucumber, rose2. orchid, mangrove tree

3.orchid, mangrove tree3. cucumber, rose

Note:

Accept any relevant answer.

SULIT 9


38/40



7(c)(i) 1 1Able to state inference correctlySample answers

- The aquatic plant is upright because it is supported by the

buoyancy of water.

Tumbuhan aquatic tegak kerana disokong oleh daya apungan

air(ii) - The position of the aquatic plant depends on the presence of

water

Kedudukan tumbuhan aquatic bergantung kepada kehadiran air

[any one]

Able to predict what happen to the plant correctly

Answers

- The aquatic plant will float 1 1Tumbuhan aquatic akan terapung

Total 10

SULIT 10


39/40



8(a)(i) Able to state one inference correctlySample answers

1. the temperature of water affect / influence the size of sugar cube 1 1

Suhu air mempengaruhi saiz gula kiub.

2. the size of sugar kiub depend on the temperature of water/ hotness

Saiz gula kiub dipengaruhi oleh suhu / kepanasan air[ Any one]

Reject:

Answer regarding rate of dissolving / time.

Able to state hypothesis(ii) Sample answer

The higher temperature of water, the smaller the size of sugar cube/

vise versa. 1 1Semakin tinggi suhu air, semakin kecil saiz gula kiub / sebaliknya

(b)(i) Able to record correct reading

Answer 1 1

48sec(ii)

Able to state the manipulated and responding variable correctlyAnswer

Manipulated variable : temperature of water / suhu air

Responding variable : time taken to fine sugar dissolve / masa yang 1diambil untuk gula halus larut 1 2

SULIT 11


40/40



8(b)(iii) Able to draw graph of time against temperature correctlyAnswers

1

1 2

X

X

X

X

X

Note:

Able to plot all point correctly

Able to joint all the point smoothly

Able to state relationship correctly(c) Answers

The higher temperature of water, the shorter time taken for sugar 1 1dissolves. Vice versa.

Semakin tinggi suhu air, semakin singkat masa diambil untuk gula

melarut. sebaliknyaReject:

Temperature affect time taken for sugar dissolve.

Able to predict time taken correctly(d) Answers

(37+1sec) 1 1

Able to define operationally the meaning of rate of dissolving(e) Answers

1 1The rate of dissolving is the time taken for sugar to dissolve (atdifferent temperature).

Kadar keterlarutan ialah masa yang diambil untuk gula melarut pada total 10

suhu yang berbeza.

SULIT 12

pmr trial exam

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