SET A

Section A / Bahagian A[20 marks]

Answer all questions / Jawab semua soalan

The time suggested to answer this section is 60 minutesMasa yang dicadangkan untuk bahagian ini ialah 60 minit

1 Diagram 1 shows an experiment to study the effect of impurities on boiling point of distilled water.Rajah 1 menunjukkan eksperimen untuk mengkaji kesan bendasing ke atas takat didih air suling.

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

SubstanceBahan

Boiling point/ o CTakat didih/ o C

Distilled waterAir suling

100

Distilled water + sugarAir suling + gula

……….

TABLE 1JADUAL 1

(a) Based on the above experiment, complete Table 1 Berdasarkan eksperimen di atas, lengkapkan Jadual 1. [1 mark]

(b) State the responding variable in this experiment.Nyatakan pembolehubah yang bergerak balas dalam eksperimen itu.

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

1

DIAGRAM 1RAJAH 1

Distilled waterAir suling

ThermometerJangka suhu

SugarGula

(c) Write a conclusion based on the result of the above experiment.Tuliskan kesimpulan berdasarkan keputusan eksperimen di atas

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

(d) What is the operational definition for distilled water?Apakah definisi secara operasi bagi air suling?

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

(e) If distilled water added with sugar is cooled, predict the freezing point of this substance.Jika air suling bercampur dengan gula disejukkan, ramalkan takat beku bahan tersebut.

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

2 The weight of male students in Form 5 Alpha are recorded in the table below. Berat badan pelajar lelaki dalam kelas Tingkatan 5 Alfa dicatatkan di dalam jadual di bawah.

Weight of students/kgBerat badan pelajar / kg

70 65 63 49 74 53 43 75 56 6362 66 47 58 60 67 77 50 51 6155 74 54 68 53 57 78 72 60 56

(a) By using the data above, complete Table 2Dengan menggunakan data di atas, lengkapkan Jadual 2.

WeightBerat badan/ kg

41 - 45 46 - 50 51 - 55 56 - 60 61 - 65 66 - 70 71 - 75 76 - 80

Number of student

Bilangan pelajar

TABLE 2JADUAL 2

[2 marks]

(b) By using the result in Table 2, draw a bar graph the number of student against the weight.Dengan menggunakan keputusan yang diperolehi dalam Jadual 2, lukiskan satu graf bar bilangan pelajar melawan berat badan.

2

Weight/kg

Berat badan / kg

[2 marks]

(c) From the graph in ( b ), state the type of variation that shown by the weight of students. Daripada graf yang diperolehi di ( b ), tentukan jenis variasi yang ditunjukkan

oleh berat badan pelajar.

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

3

40 45 50 55 60 65 70 75 80 85

Number of student

6

5

4

3

2

1

0

SET B

Section A[20 marks]

Answer all questions in this section.Jawab semua soalan

The time suggested to answer this section is 60 minutesMasa yang dicadangkan untuk bahagian ini ialah 60 minit

1 Diagram 1 shows the information on the blood groups collected from 30 students in a class.(Rajah 1 menunjukkan maklumat tentang kumpulan darah yang dikumpul daripada 30 orang pelajar di dalam satu kelas)

(a) Complete Table 1 based on the information in Diagram 1.(Lengkapkan Jadual 1 berdasarkan maklumat dalam Rajah 1)

Type of blood group(Jenis kumpulan darah)

A B AB O

Number of students(Bilangan pelajar)

[2 marks]

4

DIAGRAM 1

TABLE 1

A A AB A B O B B B A

ABO A B A A AB O A O

A B B O B B AB A B A

(b) Draw a bar chart using the data in Table 1.(Lukis carta bar menggunakan data dalam Jadual 1)

[2 marks](c) Based on the bar chart in (b), state the type of variation for the blood group.

(Berdasarkan carta bar di (b), nyatakan jenis variasi bagi kumpulan darah)

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

2 Diagram 2 shows an experiment to study the reactivity of metals when react with oxygen.(Rajah 2 menunjukkan satu eksperimen untuk mengkaji kereaktifan logam bila bertindak balas dengan oksigen)

5

Number of students (Bilangan pelajar)

Blood group (Kumpulan darah)

2

0

2

0

12

10

2

4

8

0

6

DIAGRAM 2

Potassium manganate (VII)(Kalium mangganat (VII))

Metal filling(Serbuk logam)

Glass wool(Wul kaca)

Heat (Panaskan) Heat (Panaskan)

Three types of metals X, Y and Z are used and the results are shown in the Table 2.(Tiga jenis logam iaitu X, Y dan Z telah digunakan dan keputusan pemerhatian ditunjukkan dalam Jadual 2. )

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 2 ( Jadual 2 )

(a) Write down one inference that can be made from observation in Table 2(Tuliskan satu inferens yang boleh dibuat berdasarkan pemerhatian pada Jadual 2)

…………………………………………………………………………………………...................

…………………………………………………………………………………………...................[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 2, arrange the reactivity of the metals from the most reactive to the least reactive.(Berdasarkan keputusan dalam Jadual 2, 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]

6

3 Diagram 3 shows a magnifying lens which is used to view an object.(Rajah 3 menunjukkan kanta pembesar yang digunakan untuk melihat sesuatu objek)

DIAGRAM 3

(a) Complete the Diagram 3 to show the formation of the image by the magnifying lens( Lengkapkan Rajah 3 untuk menunjukkan pembentukan imej oleh kanta pembesar)

[2 marks]

(b) Measure the size of the image.(Ukur saiz imej yang terhasil)

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

(c) State two characteristics of the image formed.(Nyatakan dua ciri imej yang terbentuk)

1.…………………………………………………………………………………………..................

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

7

2FF2F F

magnifying lens (kanta pembesar)()

object (objek)

SET C

Section A[20 marks]

Answer all questionsJawab semua soalan

The time suggested for this section is 60 minutesMasa yang dicadangkan untuk bahagian ini ialah 60 minit

1 Diagram 1 shows an experiment to study the changes in the states of matter when it is heated.Rajah 1 menunjukkan eksperimen untuk mengkaji perubahan keadaan jirim apabila dipanaskan.

The result of the experiment is shown in Table 1.Keputusan eksperimen ditunjukkan dalam Jadual 1.

Time / minnuteMasa / minit

Temperature / 0CSuhu / 0C

0 05 010 3615 6820 10025 100

(a) Write one observation based on Diagram 1.Tuliskan satu pemerhatian berdasarkan Rajah 1.

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

8

beaker

ais

thermometer

Ice before heatingAis sebelum dipanaskan Ice after heating

Ais selepas dipanaskan

thermometertermometer

ice

Diagram 1Rajah 1

Table 1Jadual 1

Bunsen bunner

(b) Based on Table 1, draw a graph of temperature against time.Berdasarkan Jadual 1, 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]

2 Diagram 2(a) and 2(b) shows the experiment to study the relationship between object distance of lens P and the characteristic of image formed.Rajah 2(a) dan 2(b) menunjukkan eksperimen untuk mengkaji hubungan di antara jarak objek kanta P dengan sifat imej yang terhasil .

9

2F F F 2F

LensKanta P

ObjectObjek

20

40

60

80

100Suhu / 0 C

Masa / min

Diagram 2(a)Rajah 2(a)

Diagram 2(b) Rajah 2(b)

(a) Complete ray diagram on Diagram 2(a) and Diagram 2(b) to show image formed.Lengkapkan rajah sinar pada Rajah 2(a) dan Rajah 2(b) untuk menunjukkan imej yang terhasil.

[2 marks](b) Measure and write image distance on Diagram 2(a)

Ukur dan tulis jarak imej pada rajah 2(a) .

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

(c) Write one hypothesis based on Diagram 2(a) and Diagram 2(b)Tuliskan satu hipotesis berdasarkan Rajah 2(a) dan Rajah 2(b).

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

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

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

10

2F F F 2F

Lens PKanta P

Object Objek

3 Diagram 3 shows the arrangement of the apparatus to compare the hardness of copper and brass.The diameter of the dent in each block is measured when the weight is released and the results are recorded.Rajah 3 menunjukkan susunan radas bagi membandingkan sifat kekerasan kuprum dan loyang. Diameter lekukan yang terbentuk pada setiap bongkah diukur apabila pemberat dijatuhkan dan dicatatkan.

Diagram 3

Rajah 3

The result is recorded on Table 2Keputusan yang diperolehi dicatatkan dalam Jadual 2.

BlockBongkah

Diameter lekuk / cmThe diameter of the dent/cm

The average of the dent/cmPurata diameter lekuk / cmExperiment 1

Eksperimen 1Experiment 2Eksperimen 2

CopperKuprum

1.2 1.4 1.3

BrassLoyang

0.8 0.9 ...........................................

Table 2Jadual 2

(a) Based on the experiment above, complete table 2Berdasarkan eksperimen di atas, lengkapkan Jadual 2. [1 mark]

(b) Based on Table 2, state the observation in this experiment. Berdasarkan Jadual 2, nyatakan pemerhatian bagi eksperimen ini.

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

(c) What is the inference based on the observation above ? Apakah inferens berdasar pemerhatian di atas?

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

11

Steel ballBebola keluli Block

Bongkah

Weight 100g Pemberat 100 g

Retort standKaki retot

RulerPembaris meter

(d) State the operational definition of brass.Nyatakan definisi secara operasi bagi loyang.

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

(e) Predict the diameter of the dent of copper block if weight 200 g is used in this experiment.Ramalkan diameter lekuk logam kuprum jika pemberat 200 g digunakan dalam eksperimen ini.

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

12