CONFIDENTIAL 4531/2 CONFIDENTIAL Form : · PDF fileCONFIDENTIAL 3 4531/2 /2 [turn over...
Transcript of CONFIDENTIAL 4531/2 CONFIDENTIAL Form : · PDF fileCONFIDENTIAL 3 4531/2 /2 [turn over...
CONFIDENTIAL 1 4531/2
Name : …………………….……………………… 4531/2
Form : …………
SOALAN KLON
SIJIL PELAJARAN
MALAYSIA 2015
PHYSICS
Paper 2
Two hours and thirty minutes
DO NOT OPEN THIS QUESTION PAPER UNTIL TOLD
1. Write your name and form in the space
provided.
2. Candidate is required to read information
on page 2.
__________________________________________________________________________________
This question paper contain 27 printed pages
INFORMATION FOR CANDIDATES
MAKLUMAT UNTUK CALON
1. This question paper consists of three sections: Section A, Section B and Section C.
Kertas soalan ini mengandungi tiga bahagian : Bahagian A, Bahagian B dan Bahagian C.
2. Answer all questions in Section A. Write your answers for Section A in the spaces provided in
Section Question Full
Marks
Marks
Obtain
A
1 4
2 5
3 6
4 7
5 8
6 8
7 10
8 12
B 9 20
10 20
C 11 20
12 20
Total
CONFIDENTIAL
4531/2
Physics
Paper 2
2
12 hours
CONFIDENTIAL 2 4531/2
/2 CONFIDENTIAL
the question paper.
Jawab semua soalan dalam Bahagian A. Tulis jawapan bagi Bahagian A dalam ruang yang
disediakan dalam kertas soalan
3. Answer one question from Section B and one question from Section C. Write your answers for
Section B and Section C on the lined pages at the end of this question paper. Answer questions
in Section B and Section C in detail. You may use equations, diagrams, tables, graphs and
other suitable methods to explain your answer.
Jawab satu soalan daripada Bahagian B dan satu soalan daripada Bahagian C.Tuliskan
jawapan bagi Bahagian B dan Bahagian C pada halaman bergarisdi bahagian akhir kertas
soalan ini. Jawab Bahagian B dan Bahagian C dengan terperinci. Anda boleh menggunakan.
persamaan, gambar rajah, jadual, graf dan cara lain yang sesuai untuk menjelaskan jawapan
anda.
4. Show your working, it may help you to get marks.
Tunjukkan kerja mengira, ini membantu anda mendapatkan markah.
5. If you wish to cancel any answer, neatly cross out the answer.
Sekiranya anda hendak membatalkan sesuatu jawapan, buat garisan di atas jawapan itu
6. The diagram in the question provided are not drawn to scale unless stated.
Gambarajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.
7. A list of formulae is provided on page 3.
Satu senarai rumus disediakan di halaman 3.
8. The marks allocated for each question or part question are shown in brackets.
Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam
kurungan.
9. The time suggested to answer Section A is 90 minutes, Section B is 30 minutes and Section C is
30 minutes.
Masa yang dicadangkan untuk menjawab Bahagian A ialah 90 minit, Bahagian B ialah 30
minit dan Bahagian C ialah 30 minit.
10. You may use a non-progmammable scientific calculator.
Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh deprogram. Walau
bagaimanapun, langkah mengira perlu ditunjukkan.
11. Hand in this question paper at the end of the examination.
Serahkan kertas soalan ini di akhir peperiksaan.
The following information may be useful. The symbols have their usual meaning.
Maklumat berikut mungkin berfaedah. Simbol-simbol mempunyai makna yang biasa.
1. a = t
uv
2. Momentum = mv
3. F =ma
CONFIDENTIAL 3 4531/2
/2 [turn over
CONFIDENTIAL
4. Gravitational potential energy = mgh
5. Kinetic energy =2
2
1mv
6. ρ = v
m
7. Preasure, p = A
F
8. Preasure, p = hρg
9. Heat, Q = mcθ
10. T
pV= constant
11. E = mc2
12. v = fλ
13. f
1=
u
1+
v
1
14. n = r
i
sin
sin
15. V = IR
16. asuv 222
17. 2
2
1atuts
18. Power, P = time
energy
19. D
ax
20. n = h
H
21. ItQ
22. Power, P = IV
23. g = 10 m s-2
1. a = t
uv
2. Momentum = mv
3. F =ma
4. Tenaga keupayaan = mgh
5. Tenaga kinetic =2
2
1mv
6. ρ = v
m
7. Tekanan, p = A
F
8. Tekanan, p = hρg
9. Haba, Q = mcθ
10. T
pV= pemalar
11. E = mc2
12. v = fλ
13. f
1=
u
1+
v
1
14. n = r
i
sin
sin
15. V = IR
16. asuv 222
17. 2
2
1atuts
18. Kuasa, P = masa
tenaga
19. D
ax
20. n = h
H
21. ItQ
22. Kuasa, P = IV
23. g = 10 m s-2
CONFIDENTIAL 4 4531/2
/2 CONFIDENTIAL
Section A
[60 marks ]
Answer all questions in this section
The time suggested to answer this section is 90 minutes.
1 A radioactive source emits two rays P and Q is placed in front of an electric field and the
radioactive path is shown in Diagram 1.
Suatu sumber bahan radioaktif memancarkan sinar P dan Q diletakkan di dalam suatu medan
elektrik dan lintasan radioaktif ditunjukkan dalam Rajah 1.
DIAGRAM 1
RAJAH 1
(a) Name the material of container X.
Namakan bahan bagi bekas X.
..……………………………………………………………………………………..........
[ 1 mark ]
(b) (i) Complete this sentence by underlining one correct phrase in the box.
Lengkapkan pernyataan berikut dengan menggariskan satu frasa dalam
kotak berikut.
Ray P is
Sinar P ialah
an alpha particle
satu zarah alfa
a beta particle
satu zarah beta
a gamma ray
satu sinar gama
CONFIDENTIAL 5 4531/2
/2 [turn over
CONFIDENTIAL
[1 mark ]
(ii) Give the reason for your answer in (a)(i).
Berikan sebab bagi jawapan anda di (a)(i).
………..………………………………………………………………………..
[1 mark ]
(c) Why the size of deflection of ray P is greater than ray Q?
Mengapakah saiz pesongan sinar P lebih besar daripada sinar Q?
………………………………………………..………………………………………..
[1 mark ]
2 Diagram 2.1 shows a car and a lorry which has different mass approaching a zebra crossing with
same velocity 15 m s-1
.
Rajah 2.1 menunjukkan sebuah kereta dan sebuah lori yang mempunyai jisim berbeza
menghampiri lintasan zebra dengan halaju 15 ms-1
.
When the driver in the vehicles saw Siti walking across the zebra crossing, they applied the brake
at the same time until the vehicles came to a complete stop.
Bila pemandu kedua-dua kenderaan itu melihat Siti melintasi lintasan zebra, merekamengenakan
brek dengan serentak sehingga kedua-dua kenderaan itu berhenti dengan sempurna.
(a) What is meant by mass ?
Apakah yang dimaksudkan dengan jisim ?
………………………………………………………………………………………………
[1 mark ]
(b) (i) Between the car and the lorry in Diagram 2.1, which first came to a complete stop?
Antara kereta dan lori di dalam Rajah 2.1, yang manakah berhenti dengan
sempurna terlebih dahulu.
..………………………………………………………………………………………
CONFIDENTIAL 6 4531/2
/2 CONFIDENTIAL
[1 mark ]
(ii) Give one reason for your answer in (b) (i).
Berikan satu sebab bagi jawapan anda di (b) (i).
..………………………………………………………………………………………
[1 mark ]
(c) If the lorry had traveled a distance of 375 m before it came to a stop, calculate the
deceleration when the brake was applied until it stop.
Jika lori telah bergerak sejauh 375 m sebelum ianya berhenti, hitungkan nyah pecutan
bila brek dikenakan.sehingga ia berhenti.
[2 marks ]
3. Diagram 3.1 shows a metal block P of mass 300 g at initial temperature 100 oC is immersed into
the water at room temperature. Diagram 3.2 shows the graph of temperature against time of
block P until it achieve thermal equilibrium.
Rajah 3.1 menunjukkan bongkah logam P berjisim 300 g pada suhu awal 100 oC direndamkan
ke dalam air pada suhu bilik. Rajah 3.2 menunjukkan graf suhu melawan masa bagi bongkah P
sehingga ia mencapai keseimbangan termal.
DIAGRAM 3.1 DIAGRAM 3.2
(a) What is meant by thermal equilibrium?
Apakah yang dimaksudkan dengan keseimbangan termal?
................................................................................................................................................
[1 mark]
P
water
Temperature / oC
time / s
100
90
80
70
60
50
40 40 0 20 60 80 100 120
CONFIDENTIAL 7 4531/2
/2 [turn over
CONFIDENTIAL
(b) What is the temperature of block P when it is in thermal equilibrium?
Berapakah suhu bongkah P apabila ia mencapai keseimbangan termal?
...............................................................................................................................................
[1 mark]
(c) Explain how block P achieve thermal equilibrium.
Terangkan bagaimana bongkah P mencapai keseimbangan termal.
...............................................................................................................................................
...............................................................................................................................................
...............................................................................................................................................
[2 marks]
(d) Calculate the amount of heat lost by block P when its achived thermal equilibrium.
[ Specific heat capacity of block P = 900 J kg-1
oC
-1 ]
Hitungkan kuantiti haba yang dibebaskan oleh bongkah P apabila mencapai
keseimbangan termal.
[ Muatan haba tentu bongkah P = 900 J kg-1
oC
-1 ]
[2 marks]
4 Diagram 4 shows the pattern of water waves moving towards a gap between two walls at a water-
theme park. Frequency of the water wave is 5 Hz.
Rajah 4 menunjukkan corak gelombang air yang bergerak melalui satu celah di antara dua
dinding yang terdapat di dalam sebuah taman tema air.Frekuensi gelombang air ialah 5 Hz.
CONFIDENTIAL 8 4531/2
/2 CONFIDENTIAL
DIAGRAM 4
(a) (i) On Diagram 4, draw the pattern of water waves after passing through the gap.
Pada Rajah 4, lukiskan corak gelombang air yang melalui celah itu.
[2 marks]
(ii) Name the wave phenomenon involved.
Namakan fenomena gelombang yang terlibat.
……………………………………………………………………………………….
[1 mark]
(b) Calculate the velocity of the water waves.
Hitungkan halaju gelombang air.
[2 marks]
(c) Explain how this phenomenon occurs.
Terangkan bagaimana fenomena ini berlaku.
…………..……………………………………………………………………………..……
…………..…………………………………………………………………………………..
………….…………………………………………………………………………………..
[2 marks]
CONFIDENTIAL 9 4531/2
/2 [turn over
CONFIDENTIAL
5 A fisherman finds that his boat is at different levels in the sea and in the river, although the boat
carries the same load. The density of sea water and river water is 1025 kg m-3
and 1000 kg m-3
respectively.
Seorang nelayan mendapati sampannya berada pada aras yang berbeza di dalam laut dan di
dalam sungai, walaupun membawa beban yang sama. Ketumpatan air laut dan air
sungai ialah 1025 kg m-3
dan 1000 kg m-3
masing-masing.
In the sea In the river
Di laut Di sungai
DIAGRAM 5.1 DIAGRAM 5.2
Diagram 5.1 and Diagram 5.2 illustrate the situation of the boat in the sea and in the river.
Rajah 5.1 dan Rajah 5.2 menggambarkan situasi bot itu di laut dan di sungai.
(a) What is meant by density?
Apakah yang dimaksudkan dengan ketumpatan?
………………………………….…………………………………………………………..
[1 mark]
(b) Based on Diagram 5.1 and Diagram 5.2 :
Berdasarkan Rajah 5.1 dan Rajah 5.2 :
(i) Compare the level of the boat in the sea water and in the river water.
Bandingkan aras sampan di dalam air laut dan di dalam air sungai.
……………………………………………………………………………………….
[1 mark]
(ii) Compare the volume of water displaced by the boat in the sea and in the river
Bandingkan isipadu air yang disesarkan oleh sampan itu di laut dan di sungai.
CONFIDENTIAL 10 4531/2
/2 CONFIDENTIAL
…………………………………………………….…………………………………
[1 mark]
(iii) Compare the density of sea water and river water.
Bandingkan ketumpatan air laut dan air sungai.
……………………………………………….……………………………………….
[1 mark]
(c) (i) Relate the volume of water displaced to the density of water.
Hubungkaitkan isipadu air yang disesarkan dengan ketumpatan air.
……………………………………………….….……………………………………
……………………………………………………………..…………………………
[1 mark]
(ii) Deduce relationship between weight of the boat and the weight of the water
displaced.
Rumuskan hubungan di antara berat sampan dengan berat air tersesar.
…………………………………….………………………………………………….
[1 mark]
(d) Name the physics principle that explains the situation above.
Namakan satu prinsip fizik yang menerangkan situasi di atas.
…………………………………………….………………………………………………..
[1 mark]
(e) A submarine can sail on the sea surface and under the sea by using the principle stated
in (d).
How a submarine on the surface of the sea can submerge?
Kapal selam boleh berlayar di permukaan laut dan di bawah permukaan laut
menggunakan prinsip yang anda namakan dalam (d).
Bagaimanakah kapal selam di permukaan laut boleh tenggelam?
……………………………………………………………….……………………………..
………………………………………………………..……………………………………..
[1 mark]
CONFIDENTIAL 11 4531/2
/2 [turn over
CONFIDENTIAL
6 Diagram 6.1 shows a circuit to investigate the working principle of a transistor.
The rheostat R is adjusted to get a set of data of the microammeter reading , I1 and the
miliammeter reading, I2.
Rajah 6.1 menunjukkan litar untuk menyiasat prinsip kerja sebuah transistor.
Reostat R dilaraskan untuk mendapat satu set data bacaan mikroammeter I1 dan bacaan
miliammeter I2.
Table 6 shows the reading of I1 and I2.
Jadual 6 menunjukkan bacaan I1 and I2.
DIAGRAM 6.1
I1 / μA I2 / mA
0.0 0.0
0.5 0.2
1.0 0.4
1.5 0.6
2.0 0.8
2.5 1.0
TABLE 6
(a) Name the current
Namakan arus
(i) I1
……………………………………………………………………………….…………………………………………………………
[1 mark ]
(ii) I2
CONFIDENTIAL 12 4531/2
/2 CONFIDENTIAL
…………….……………………………………………………………………………………………………………………………
[1 mark]
(b) Using Table 6, state two observations about the value of I1 and I2
Menggunakan Jadual 6, nyatakan dua pemerhatian mengenai nilai I1 and I2.
………………………………………………………………………………………………………….
…………………………………………………………………………………………………………..
[ 2 marks ]
(c) Based on your answer in (b) state the function a transistor.
Berdasarkan jawapan anda di (b), nyatakan fungsi transistor.
………………………………………………………………………………………………
[ 1 mark ]
(d) The battery P is removed and replaced by two resistors.
Bateri P ditanggalkan dan digantikan dengan dua perintang.
(i) Complete the circuit in Diagram 6.2 to ensure the transistor workable without
battery P.
Lengkapkan litar pada Rajah 6.2 untuk memastikan transistor berfungsi tanpa
bateri P.
Diagram 6.2
[ 2 marks ]
(ii) State the function of the two resistors.
Nyatakan fungsi kedua-dua perintang itu.
CONFIDENTIAL 13 4531/2
/2 [turn over
CONFIDENTIAL
..………………………………………………………………………………………………………………………………
[ 1 mark ]
7 Diagram 7.1 shows two cars, P and Q , travelling in the opposite directions, passing through a
sharp band. A mirror is placed at X .
Rajah 7.1 menunjukkan dua buah kereta P dan Q , bergerak ada arah yang bertentangan,
melalui satu selekoh tajam. Sebuah cermin dletakkan pada X.
DIAGAM 7.1
(a) Diagram 7.2 shows an incomplete ray diagram when a plane mirror is placed at X.
Rajah 7.2 menunjukkan satu gambar rajah sinar yang tidak lengkap apabila sebuah
cermin satah diletakkan pada kedudukan X.
CONFIDENTIAL 14 4531/2
/2 CONFIDENTIAL
DIAGRAM 7.2
(i) Complete the ray diagram in Diagram 7.2
Lengkapkan gambar rajah sinar pada Rajah 7.2
[2 marks]
(ii) State the light phenomenon involved in (a)(i).
Nyatakan fenomena cahaya yang terlibat dalam (a)(i).
………………………………………………………………………………………..
[1 mark]
(iii) Based on your answer in (a)(i), state the problem experienced by the driver in
car P.
Berdasarkan jawapan anda dalam(a)(i), nyatakan masalah yang dialami oleh
pemandu kereta P.
………………………………………………………………………………………..
[1 mark]
CONFIDENTIAL 15 4531/2
/2 [turn over
CONFIDENTIAL
(b) Diagram 7.3 shows an incomplete ray diagram when a curve mirror is placed at X to
replace the plane mirror in Diagram 7.2. The curve mirror is used to overcome the
problem that occur in (a)(iii).
Rajah 7.3 menunjukkan sau gambar rajah sinar yang tidak lengkap apabila sebuah
cermin melengkung diletakkan pada kedudukan bagi menggantikan cermin satah dalam
Rajah 7.2. Cermin melengkung itu digunakan bagi mengatasi masalah yang terdapat
dalam (a)(iii).
DAGRAM 7.3
(i) Give the name of the curve mirror.
Namakan cermin melengkung itu.
…..…………………………………………………………………………………..
[1 mark]
(ii) Complete the ray diagram in Diagram 7.3
Lengkapkan gambar rajah sinar dalam Rajah 7.3
[2 marks]
(iii) Based on your answer in b(ii), how the curve mirror solved the problem in (a) (iii)?
Berdasarkan jawapan anda dalam b(ii), bagaimanakah cermin melengkung itu
dapat mengatasi masalah dalam (a)(iii)?
CONFIDENTIAL 16 4531/2
/2 CONFIDENTIAL
….…………………………………………………………………………………..
[1 mark]
(c) The characteristics of the image formed by the curved mirror in Figure 7.3 is diminished,
virtual and upright.
Ciri-ciri imej yang dihasilkan oleh cermin melengkung dalam Rajah 7.3 adalah
diperkecilkan, maya dan tegak.
(i) What happen to the characteristics of the image when the focal length of the curved
mirror is increased?
Apakah yang berlaku kepada ciri-ciri imej itu apabila panjang fokus cermin
melengkung itu bertambah?
………………………………………………………………………………………..
[1 mark]
(ii) Give the reason for your answer in (c)(i).
Berikan sebab bagi jawapan anda dalam (c)(i).
………………………………………………………………………………………..
[1 mark]
8 Diagram 8.1 shows a method used to detect leakage of pipes laid underground. A little
radioisotope substance is dissolved in the water that flows in the pipes. A Geiger Muller which
connected to the ratemeter is then moved over the pipes according to the layout plan of the
underground pipes.
Rajah 8.1 menunjukkan kaedah yang digunakan untuk mengesan kebocoran paip bawah tanah.
Sedikit bahan radioisotop dilarutkan ke dalam air dan disalurkan melalui paip. Kemudian satu
pembilang Geiger Muller yang disambungkan kepada meter kadar digerakkan di permukaan
tanah mengikut pelan laluan paip bawah tanah itu.
DIAGRAM 8.1
to ratemeter
underground
water pipe
A B C D E F
CONFIDENTIAL 17 4531/2
/2 [turn over
CONFIDENTIAL
Table 8.1 shows the readings of the ratemeter at the different location.
Jadual 8.1 menunjukkan bacaan pembilang Geiger Muller pada kedudukan yang berlainan.
Location of Geiger-Muller
tube
Kedudukan Tiub
Geiger Muller
A B C D E F
Reading of the ratemeter /
counts per minute
Bacaan meter kadar
Bilangan/minit
300 295 284 372 290 216
TABLE 8.1
(a) What is meant by radioisotope?
Apakah yang dimaksudkan dengan radioisotop?
……………………….........………………………………………………………………..
[1 mark]
(b) Base on Table 8.1, state the location on the pipe where the leakage takes place.
State reason for your answer.
Berdasarkan Jadual 8.1, nyatakan bahagian paip yang mengalami kebocoran.
Berikan sebab bagi jawapan anda.
……………………………………………….……………………………………………..
………………………………………………….…………………………………………..
[2 marks]
(c) Table 8.2 shows the time taken for radioisotope of Sodium-24, Cobalt-60 and Radium-
226 to decay to 12.5% from initial activity and radioactive emission.
Jadual 8.2 menunjukkan masa yang diambil bagi radioisotop Natrium-24, Kobalt-60 dan
Radium-226 berkurang menjadi 12.5% daripada keaktifan asal dan sinar yang
dikeluarkan.
Radioisotope
Radioisotop
Time taken to decay to 12.5%
Masa yang diambil untuk
berkurang menjadi 12.5%
Radioactive emission
Sinar yang dikeluarkan
Sodium -24
Natrium-24
45 hours
45 jam
Beta
Beta
CONFIDENTIAL 18 4531/2
/2 CONFIDENTIAL
Cobalt-60
Kobalt-60
15.9 years
15.9 tahun
Gamma
Gamma
Radium-226
Radium-226
4860 years
4860 tahun
Alpha
Alfa
TABLE 8.2
Base on Table 8.2,
Berdasarkan Jadual 8.2,
(i) Write the decay equation for Radium-226 ( 226
88 Ra ) if it decays to Radon ( 222
86 Rn ).
Tuliskan persamaan reputan bagi Radium-226 ( 226
88 Ra ) jika ia mereput menjadi
Radon ( 222
86 Rn ).
[2 marks]
(ii) calculate the half life for every radioisotope.
hitungkan setengah hayat bagi setiap radioisotop.
[4 marks]
(d) Based on your answer in (c) (ii) and Table 8.2, suggest the suitable radioisotope to detect
the leakages of pipes.
Give two reasons for your answer.
Berdasarkan jawapan anda di (c) (ii) dan Jadual 8.2, cadangkan radioisotop yang sesuai
untuk mengesan kebocoran paip.
Berikan dua sebab bagi jawapan anda.
…………………………………………………..…………………………….……………
CONFIDENTIAL 19 4531/2
/2 [turn over
CONFIDENTIAL
………………………………………………………………..……………….……………
……………………………………………………………..……………….………………
[3 marks]
CONFIDENTIAL 20 4531/2
/2 CONFIDENTIAL
Section B
[ 20 marks]
Answer any one question from this section.
The time suggested to answer this section is 30 minutes.
9 Diagram 9.1 show a hydraulic lift used to raise weight of 200 N and 800 N placed on the
pistons Q and R respectively.
The pressure exerted on piston P is 1000 N m-2
. Cross sectional area of piston Q and piston R is
0.2 m2 and 0.8 m
2 respectively.
Rajah 9.1 menunjukkan sebuah pengangkat hidraulik digunakan untuk mengangkat beban
200 N dan 800 N di atas omboh Q dan R masing-masing.
Tekanan yang dikenakan ke atas omboh P ialah 1000 N m-2
. Luas keratan rentas omboh Q
dan R ialah 0.2 m2 and 0.8 m
2 masing-masing.
DIAGRAM 9.1
(a) (i) What is meant by pressure?
Apakah maksud tekanan?
[1 mark]
(ii) With reference to Diagram 9.1, calculate the pressure exerted by the liquid M on
the piston Q and piston R.
Merujuk kepada Rajah 9.1, hitungkan tekanan yang dikenakan oleh cecair M ke
atas omboh Q dan omboh R.
Compare the pressure exerted on the piston P, Q and R..
Relate the pressure exerted by piston P on the piston Q and R with the liquid M.
Bandingkan tekanan yang dikenakan ke atas omboh P, Q dan R.
Hubungkaitkan antara tekanan yang dikenakan oleh omboh P ke atas omboh Q dan
CONFIDENTIAL 21 4531/2
/2 [turn over
CONFIDENTIAL
R dengan cecair M.
[5 marks]
(b) Diagram 9.2 shows the toothpaste flows out of it’s tube while squeezing at the bottom
end.
Rajah 9.2 menunjukkan ubat gigi mengalir keluar daripada tiubnya apabila dipicit
bahagian hujung bawahnya.
DIAGRAM 9.2
Explain how the toothpaste flows out and name a physics principle related to it.
Terangkan bagimana ubat gigi itu mengalir keluar dan namakan prinsip fizik yang
berkaitan dengannya.
[4 marks]
(c) Diagram 9.3 shows a hidraulic jack which can lift up a maximum mass of 1 metric tonne.
Rajah 9.3 menunjukkan sebuah jek hidraulik yang boleh mengangkat jisim maksima 1 ton
metrik.
CONFIDENTIAL 22 4531/2
/2 CONFIDENTIAL
DIAGRAM 9.3
Using suitable physics concepts, explain the modification that needs to be done to the
Menggunakan konsep fizik yang sesuai, terangkan pengubahsuaian ke atas
i. size of the piston,
saiz omboh,
ii. material of the body,
bahan untuk membina badan,
iii. type of liquid used,
jenis cecair yang digunakan,
iv. handle and
pemegang dan
v. ability to reset the piston position easily
kebolehan untuk mengembalikan omboh kepada kedudukan asal
of the hidraulic jack to enable it to lift mass of greater quantity.
jek hidraulik untuk membolehkannya mengangkat jisim yang lebih besar.
[10 marks]
CONFIDENTIAL 23 4531/2
/2 [turn over
CONFIDENTIAL
Switch
Ammeter
R R
Voltmeter
Battery
Switch
Ammeter
R
R
Voltmeter
Battery
10 Diagram 10.1 and Diagram 10.2 show two identical resistors which has resistance R
connected to the ammeters, voltmeters, switches and batteries with different ways.
Rajah 10.1 dan Rajah 10.2 menunjukkan dua perintang serupa yang mempunyai rintangan R
disambungkan kepada ammeter, voltmeter, suis dan bateri dengan cara yang berbeza.
DIAGRAM 10.1 DIAGRAM 10.2
When the switch is on, the ammeters and the voltmeters show a reading.
Apabila suis dihidupkan, ammeter dan voltmeter menunjukkan bacaan.
(a) What is meant by current?
Apakah yang dimaksudkan dengan arus?
[1 mark]
(b) With reference to Diagram 10.1 and Diagram 10.2, compare the type of circuit
connections, the reading of ammeters, the reading of voltmeters and the effective
resistance of the circuits.
Relate the current flows in a circuit with the effective resistance to make a deduction
regarding the relationship between type of a circuit connection and the effective
resistance.
Merujuk kepada Rajah 10.1 dan Rajah 10.2, bandingkan jenis sambungan litar,
bacaan ammeter, bacaan voltmeter dan rintangan berkesan bagi litar-litar.
Hubungkaitkan arus yang mengalir dalam litar dengan rintangan berkesan untuk
membuat satu kesimpulan tentang hubungan antara jenis sambungan litar dengan
rintangan berkesan.
[6 marks]
(c) One identical resistor is connected parallel to the resistors in Diagram 10.2. Explain
what happens to the reading of ammeter and voltmeter.
Satu perintang yang serupa disambung selari dengan perintang-perintang dalam
Rajah 10.2. Terangkan apakah yang terjadi kepada bacaan ammeter dan voltmeter.
[3 marks]
CONFIDENTIAL 24 4531/2
/2 CONFIDENTIAL
(d) Diagram 10.3 shows the lamps in a domestic lightning circuit are connected in
parallel.
Rajah 10.3 menunjukkan lampu-lampu di dalam litar pencahayaan rumah yang
disambung secara selari.
DIAGRAM 10.3
The circuit is not complete and not efficient for electrical energy consuming and less
safety.
Suggest modifications that need to be done to the circuit to improve safety, produce the
lamps lights up with normal brightness and to increases the efficiency of electrical
energy consuming.
Litar ini tidak lengkap dan tidak cekap bagi penggunaan tenaga elektrik serta kurang
selamat.
Cadangkan pengubahsuaian yang perlu dilakukan kepada litar ini untuk meningkatkan
keselamatan, menghasilkan lampu yang menyala dengan kecerahan normal dan
meningkatkan kecekapan penggunaan tenaga elektrik.
[10 marks]
To
another
lamps
Live
Neutral
EarthMeter
240 V metal
lamp fitting
120 V room
lamp
220 V dinning
room
Consumer unit
(Fuse box)
CONFIDENTIAL 25 4531/2
/2 [turn over
CONFIDENTIAL
Section C
Bahagian C
[ 20 marks ]
[20 markah]
Answer any one question from this section.
Jawab mana-mana satu soalan dalam bahagian ini.
The time suggested to answer this section is 30 minutes.
Anda dinasihatkan memperuntukkan 30 minit untuk bahagian ini.
11 Diagram 11.1 shows a small aircraft. Diagram 11.2 shows a cross section of the aircraft’s
wings.
Rajah 11.1 menunjukkan sebuah kapal terbang kecil. Rajah 11.2 menunjukkan keratan rentas
sayap kapal terbang tersebut.
DIAGRAM 11.1 DIAGRAM 11.2
(a) Name the shape of the cross sectional of the aircraft wings.
Namakan bentuk keratan rentas bagi sayap kapalterbang
[1 mark]
(b) The aircraft obtains its lift when flying due to a difference in pressure of the air
between the upper and bottom sides of the wings.
Kapalterbang kekal terapung semasa terbang kerana disebabkan adanya perbezaan
tekanan udara di antara bahagian atas dan bawah sayapnya.
(i) Explain how this difference in pressure is produced.
Terangkan bagaimana perbezaan tekanan ini terhasil
[3 marks]
CONFIDENTIAL 26 4531/2
/2 CONFIDENTIAL
(ii) Name the principle involved in your answer to(b)(i)
Namakan prinsip yang terlibat dalam jawapan anda untuk(b)(i)
[1 mark]
Table 11 shows characteristic of four design of the aircraft wings.
Jadual 11 menunjukkan ciri-ciri bagi empat rekabentuk bagi sayap kapal terbang.
Design
Rekabentuk
Shape of cross section of wing
Bentuk keratan rentas sayap
Area of
wing
Keluasan
sayap
/m2
Density of
wing material
Ketumpatan
bahan sayap
/Kgm-3
Difference in
speed of air
above and
below the wing
Perbezaan laju
udara diantara
bahagian atas
dan bawah
sayap
/ m s-1
P
40.0
2100
10.0
Q
41.5
2300
0.0
R
42.5
2000
0.0
S
38.2
2050
8.0
TABLE 11
(c) You are requested to choose a suitable wing to be installed with the body of the aircraft.
Anda dikehendaki memilih sayap yang sesuai untyuk dipasang bersama badan
kapalterbang
By referring to the information given in Table 11, explain the suitability of each
characteristic and suggest the most suitable wing to be installed with the body of the
aircraft.
Dengan merujuk kepada maklumat yang diberikan dalam Jadual 11, terangkan
kesesuaian setiap ciri dan cadangkan sayap yang paling sesuai untuk dipasang bersama
badan kapal terbang tersebut.
CONFIDENTIAL 27 4531/2
/2 [turn over
CONFIDENTIAL
[10 marks]
(d) An aircraft installation department chooses wing P to be installed with its aircrafts which
has maximum mass 800 kg.
Sebuah syarikat pemasangan kapal terbang memlih sayap P untuk dipasang pada
pesawatnya yang berjisim maksimum 800 kg.
(i) If the air pressure below the wing is more than the air pressure above the wing by
500 N m-2
, calculate the force that exerted from below of the wing.
Jika tekanan udara di bawah sayap melebihi tekanan udara di atasnya sebanyak
500 N m-2
, kirakan daya yang bertindak dari bawah sayap kapal terbang tersebut.
[2 marks]
(ii) Determine the resultant force and its direction that exerted to the wing of the
aircraft.
Tentukan daya paduan dan arahnya yang bertindak terhadap sayap kapal terbang
tersebut.
[2 marks]
(iii) Calculate the vertical acceleration of the aircraft.
Kirakan pecutan menegak kapal terbang tersebut.
[1 mark]
CONFIDENTIAL 28 4531/2
/2 CONFIDENTIAL
12 Diagram 12.1 shows an electric bell.
Rajah 12.1 menunjukkan loceng elektrik.
DIAGRAM 12.1
(a) (i) State the energy transformation that takes place when an electric bell rings.
Nyatakan perubahan tenaga yang berlaku apabila loceng electrik berbunyi
[1 mark]
Hammer
Penukul
Switch
Suis
Gong
Soft iron core
Teras besi
lembut
CONFIDENTIAL 29 4531/2
/2 [turn over
CONFIDENTIAL
(ii) Based on the Diagram 12.1, explain the working principle of how an electric
bell rings when the switch is on.
Berdasarkan pada Rajah 12.1, terangkan bagaimana loceng elektrik itu
berbunyi apabila suis dihidupkan.
[4 marks]
(b) An electric bell in Diagram 12.1 is able to produce a louder sound .
Loceng elektrik pada Rajah 12.1 dapat menghasilkan bunyi yang kuat..
Table 12 shows the characteristics of electric bells P,Q,R,S and T which could
produce a loud sound.
Jadual 12 menunjukkan ciri-ciri pada loceng eletrik P,Q,R,S danT yang boleh
menghasilkan bunyi yang kuat.
Electric Bell
Loceng
Elektrik
Size of the
hammer
Saiz penukul
Distance between the
hammer and the
gong/cm
Jarak antara penukul
dengan gong/cm
The number of turns
of the coil around
soft iron core
Bilangan lilitan
pada teras besi
lembut
Curvature of
the gong
Kelengkungan
gong
P Big
Besar 2.0 50
High
Tinggi
Q Big
Besar 5.0 100
High
Tinggi
R Big
Besar 5.0 100
Low
Rendah
S Small
Kecil 5.0 50
Low
Rendah
T Small
Kecil 2.0 100
Low
Rendah
You are asked to study the electric bells P,Q,R,S and T.
Explain the suitability of each characteristic of the electric bell in Table 12 and
hence, determine which electric bell is able to produce the loudest sound.
Justify your choice.
Anda ditugaskan untuk mengkaji ciri-ciri pada loceng elektrik P,Q,R,S dan T.
Terangkan kesesuaian setiap ciri-ciri pada loceng elektrik dalam Jadual 12 dan
seterusnya tentukan loceng dapat menghasilkan bunyi yang paling kuat.
CONFIDENTIAL 30 4531/2
/2 CONFIDENTIAL
Berikan sebab untuk pilihan anda.
[10 marks]
(c) Diagram 12.2 shows an electric bell 12 V,10 W is connected to the output of a transformer
The efficiency of the transformer is 80%.
Rajah 12.2 menunjukkan loceng elektrik 12 V,10 W disambung kepada output transformer.
Kecekapan transformer itu ialah 80%
Calculate
Hitung
(i) the electric current in the electric bell
arus elektrik pada loceng elektrik
(ii) the electric current in the primary coil
arus pada gegelung primer
[5 marks]
240 a.c 12 V, 10 W
Electric bell
CONFIDENTIAL 31 4531/2
/2 [turn over
CONFIDENTIAL
END OF QUESTION PAPER
SPACE FOR ANSWER RUANG UNTUK JAWAPAN
Section Bahagian :………………………. Question No.No. Soalan:…………………..
CONFIDENTIAL 32 4531/2
/2 CONFIDENTIAL
SPACE FOR ANSWER RUANG UNTUK JAWAPAN
Section Bahagian :………………………. Question No.No. Soalan:…………………..
CONFIDENTIAL 33 4531/2
/2 [turn over
CONFIDENTIAL
SPACE FOR ANSWER RUANG UNTUK JAWAPAN
Section Bahagian :………………………. Question No.No. Soalan:…………………..
CONFIDENTIAL 34 4531/2
/2 CONFIDENTIAL
SPACE FOR ANSWER RUANG UNTUK JAWAPAN
Section Bahagian :………………………. Question No.No. Soalan:…………………..
CONFIDENTIAL 35 4531/2
/2 [turn over
CONFIDENTIAL
SPACE FOR ANSWER RUANG UNTUK JAWAPAN
Section Bahagian :………………………. Question No.No. Soalan:…………………..
CONFIDENTIAL 36 4531/2
/2 CONFIDENTIAL