6026199 Pahang Percubaan Pmr 2008 Science Paper 2 Answers Attached
Transcript of 6026199 Pahang Percubaan Pmr 2008 Science Paper 2 Answers Attached
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SULIT sce paper 2 trial1PMR PHG 2008 55/2
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Section A
Bahagian A
[40 marks]
[40 markah]
Answer all questions
Jawab semua soalan
For
Examiner
s use
1 Diagram 1.1 shows cells M and N.
Rajah 1.1 menunjukkan sel M dan N.
Q
R
S
M: N:
Diagram 1.1Rajah 1.1
Rajah
1(a) (a) Name cells M and N in the space provided in Diagram 1.1
Namakan sel-sel M dan N dalam ruang yang disediakan pada Rajah 1.1
[2 marks][2 markah]
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Examiners
use
1(b)
(b) P is where photosynthesis takes place. Label P in Diagram 1.1
P ialah tempat di mana fotosintesis berlaku. Labelkan P dalam Rajah 1.1
[1 mark][1 markah]
(c) Draw lines to match the structures of the cell and their functions.
Draw the lines as shown below.
Padankan struktur sel dengan fungsinya dengan melukis garisan seperti
yang ditunjukkan.
StructureStruktur
FunctionFungsi
Regulates the movement of
substances in and out of the cell
Mengawal pergerakan bahan-
bahan masuk dan keluar dari selQ
Protects and maintains the shape
of the cell
R Melindungi dan mengekalkanbentuk sel
1(c)S
Controls all activities of the cell
Mengawal segala aktiviti sel
Contains cell sap
Mengandungi sap sel
[2 marks][2 markah]
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1(d)
Total
(d) Name one similar structure that can be found in both cells M and N.
Namakan satu struktur sama yang terdapat di kedua-dua sel M dan N.
[1 mark]
[1 markah]
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2 Diagram 2.1 shows the flow of energy in a simple food web.
Rajah 2.1 menunjukkan aliran tenaga dalam satu siratan makanan ringkas.
Organism A
Organisma A
Organism D
Organisma D
Organism B
Organisma B
Organism C
Organisma C
Diagram 2.1
Rajah 2.1
(a) (i) Which organism is the producer?
Organisma yang manakah ialah pengeluar?
.
[1 mark][1 markah]
(ii) Why is the organism mentioned in 2(a)(i) called the producer?
Kenapa organisma yang disebut di 2(a)(i) dikenali sebagai pengeluar?
2(a)...
...
[1 mark][1 markah]
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(b) Diagram 2.2 shows a food web that consists of several interrelated food
chains.
Rajah 2.2 menunjukkan satu siratan makanan yang mengandungi beberapa
gabungan rantai makanan.
Eagle
Helang
Lizard
Cicak
Snake
Ular
Rat
Tikus
Rabbit
Arnab
Grasshopper
Belalang
Paddy
Padi
Diagram 2.2
Rajah 2.2
(i) How many food chains are there in the food web shown in Diagram 2.2?
Berapa rantai makanan yang terdapat dalam siratan makanan pada
Rajah 2.2?
[1 mark]
[1 markah]
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2(b)
2(c)
2 (d)
2(e)
Total
(ii) Give one example of food chain that you can find in the food web in
Diagram 2.2.
Berisatu contoh rantai makanan yang terdapat dalam siratan makanan
dalam Rajah 2.2.
..[1 mark]
[1 markah]
(c) What will happen if an extreme drought season wipes out most of the
paddy plants?
Apa akan berlaku jika satu musim kemarau menghapuskan semua
pokok padi?
..
. ..[1 mark]
[1 markah]
(d) Predict what will happen if the population of rats is suddenly increased.
Ramalkan apa akan berlaku jika populasi tikus bertambah dengan tiba-
tiba.
... [1 mark]
[1 markah]
(e) What is the source of energy for the food chain and the food web?
Apakah sumber tenaga bagi rantai dan siratan makanan ini?
[1 mark]
[1 markah]
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For
Examiners
use
3 Diagram 3.1 shows an activity carried out to study how the products
of photosynthesis are transported in a plant.
Rajah 3.1 menunjukkan satu aktiviti yang dijalankan untuk mengkaji cara
hasil fotosintesis diangkut dalam tumbuhan.
Diagram 3.1
Rajah 3.1
3(a)
3(b)
(a) What happens to the part of the branch above the ring after two weeks?
Draw your observations in the space provided in Diagram 3.1.
Apa akan berlaku pada bahagian atas gelangselepas dua minggu?
Lukiskan pemerhatian anda di ruang yang disediakan dalam Rajah 3.1.
[1 mark][1 markah]
(b) Name the tissues that are removed from the branch.
Namakah tisu yang dibuang dari batang.
P..PQQR.R
[1 mark][1 markah]
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3(c)
(c) Explain what happens in (a).
Terangkan apa yang berlaku di (a).
..
[2 marks][2 markah]
(d) Diagram 3.2 shows a cross-section of a stem. Mark X on the part
mentioned in (c).
Rajah 3.2 menunjukkan satu keratan rentas batang tumbuhan.
Tandakan Xpada bahagian yang disebut di (c).
[1 mark][1 markah]
3(d)
Diagram 3.2
Rajah 3.2
3(e)
Total
(e) What conclusion can be made from this activity?
Apakah yang dapat dirumuskan dairpada aktiviti ini?
.
. .
[1 mark}[1 markah]
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4 Diagram 4.1 shows the arrangement of marbles in three sections of a
container to show the states of matter.
Rajah 4.1 menunjukkan susunan guli-guli dalam tiga bahagian dulang untuk
menunjukkan keadaan jirim.
P Q R
Diagram 4
Rajah 4
(a) Based on Diagram 4, which state of matter do the marbles show in
Berdasarkan Rajah 4, apakah keadaan jirim yang digambarkan oleh guli
di bahagian
4(a) P: ..
Q: .
R:..
[3 marks][3 markah]
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Matter
Jirim
Property
Ciri-ciri
P
Q
For
Examiners
use
(b) State one property for P and Q.
Nyatakan satu ciri P dan Q.
4(b)
[2 marks]
[2 markah]
(c) State one example of substance that has similar property as Q.
Nyatakan satu contoh bahan yang mempunyai ciri serupa dengan Q.
4(c)
4(d)
...
[1 mark][1 markah]
(d) Suggest one way how the state of matter R can be changed to Q.
Cadangkan satu cara bagaimana rupabentuk R boleh ditukar kepada Q.
.
[1 mark][1 markah]
Total
5 Diagram 5.1 shows how some crude petroleum is heated to different
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For
Examiners
use
temperatures.
Rajah 5.1 menunjukkan bagaimana minyak mentah dipanaskan pada suhu-
suhu yang berbeza.
ThermometerTermometer
Porcelain chips
Serpihan
porcelain
PetroleumPetroelum
Delivery tubeTiub penghantar
Water
Air
Petroleum
fraction
Pecahan
petroleum
Diagram 5.1
Rajah 5.1
5(a)
(a) Name the process used in Diagram 5.1 to obtain the petroleum fractions
Namakah proses yang digunakan dalam Rajah 5.1 untuk memperoleh
pecahan petroleum.
.
[1 mark][1 markah]
(b) Table 5.2 shows the four fractions of petroleum collected in four separate
test tubes according to different temperature.
Jadual 5.2 menunjukkan empat pecahan petroleum yang dikumpulkan
dalam tabung uji yang berasingan mengikut suhu yang berbeza.
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Distilled oil
Hasil penyulingan
Range of boiling point
Julat takat didih
Colour
Warna
P 30-800C Colourless
Jernih
Q 80-1200
C YellowKuning
R 120-1600C Orange
Jingga
S 160-2000C Red
Merah
For
Examiners
use
Table 5.2
Jadual 5.2
5(b)(i)
5(b)(ii)
(i) What is the relationship between P and S in terms of their boiling points
and the colour of the distillate?
Apakah hubungan di antara P dan S dari segi takat suhu didih dan warna
hasil penyulingan?
.
[1 mark][1 markah]
(ii) Using the words given below, name fractions P, Q, R and S.
. Namakan hasil penyulingan berdasarkan yang berikut.
Kerosene Diesel Petrol Lubricating oilKerosin Diesel Petrol Minyak pelincir
P: ..Q: ..R: .S: ..
[2 marks][2 markah]
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Examiners
For
use(c) (i) State one use of P.
Nyatakan satu kegunaan P
..
[1 mark][1 markah]
5(c)
(ii) Explain why we have to use P wisely.
Terangkan kenapa kita perlu gunakan P dengan bijaksana.
..[1 mark]
[1 markah]
Total
For
Examiners
use
6 Diagram 6.1 shows the apparatus used in an experiment to study the
relationship between current and resistance.
Rajah 6.1 menunjukkan alatan yang digunakan dalam satu eksperiment untuk
mengkaji hubungan di antara arus dan rintangan.
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.Nichrome wire
Dawai nikrom
Metre rule
Pembaris meter
Jockey
Joki Dry cell
Sel kering Ammeter
Ammeter
nikrom
Diagram 6.1
Rajah 6.1
Table 6.2 shows the result of the experiment.
Jadual 6.2 menunjukkan keputusan eksperimen.
Length of nichrome wire (cm)
Panjang dawai nikrom (cm)
Current (Ampere)
Arus (ampere)
30 0.54
40 0.52
50 0.5060 X
70 0.46
(a) Diagram 6.3 shows the reading of X when the length of nichrome wire is60 cm.
Rajah 6.3 menunjukkan bacaan X apabila panjang nikrom wire itu ialah 60cm.
For
Examiners
use
6(abc)SMS Muzaffar Syah , Melaka SULIT
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Diagram 6.3
Rajah 6.3
Reading of X
Bacaan X= .
[1 mark][1 markah]
(b) Based on the results in Table 6.2, what happens to the ammeter reading
when the length of nichrome wire increases?
Berdasarkan keputusan dalam Jadual 6.2, apa berlaku kepada bacaan
ammeter apabila panjang dawai nikrom bertambah?
.
[1 mark][1 markah]
(c) Predict the ammeter reading if the length of nichrome wire is 80 cm.
Ramalkan bacaan ammeter jika panjang dawai nikrom ialah 80 cm.
.[1 mark]
[1 markah]
6(d) (d) What conclusion can you make from this experiment?
Apakah kesimpulan yang anda dapati daripada eksperimen ini?
..[1 mark]
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[1 markah]
(e) Choose the correct symbols of the electrical components used in Diagram
6.1.
Pilih simbol komponen elektrik yang digunakan dalam Rajah 6.1.Tick ( ) in the box provided.
Tandakan ( ) dalam petak yang disediakan.
6(e) A
Diagram 6.3
Rajah 6.3[ 2 marks]
[2 markah]
(f) Diagram 6.4 shows the reading on the ammeter when the voltage is 0.6 V
Rajah 6.4 menunjukkan bacaan ammeter apabila bacaan voltan 0.6V
Diagram 6.4
Calculate the resistance by uRsianjgahth6e.4information in Diagram 6.4.
Use the formula given below.
Hitungkan rintangan dengan menggunakan maklumat yang diberikan
dalam Rajah 6.4.
Gunakan rumus yang dibeikan.
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6(f)
Resistance = VoltageAmpere
Rintangan = Voltan
Ampere
[2 mark][2 markah]
Total
Section B
[20 marks]
[20 markah]
Answer all questions
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Jawab semua soalan
For
Examiners
Use
Diagram 7 shows the arrangement of particles in four substances.
Rajah 7 menunjukkan susunan zarah-zarah dalam empat bahan
JK
Oxygen
Oksigen
Sodium chloride
Natrium klorida
L M
Sulphur
Sulfur
Water
Air
Diagram 7
Rajah 7
(a) Observe Diagram 1.
Based on your observation, state one property of J, K, L, and M.
Perhatikan Rajah 1.
Berdasarkan pemerhatian anda, nyatakan satu ciri bagi J, K, L, dan M
For
Examiners
Use
7(a)
J : .
K : .
L : .
M : .
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[4 marks][4 markah]
b) Classify J, K, L, and M in Diagram 7 into two groups based on common
properties. Write the letters of the substances belonging to each
group.
Kelaskan J, K, L, dan M dalam Rajah 7 kepada dua kumpulan
berdasarkan ciri sepunya. Tuliskan huruf-huruf yang mewakili bahan itu
bagi setiap kumpulan.
Oxygen, Sodium chloride, Sulphur, Water
Oksigen, Natrium klorida, Sulfur, Air
Common property
Ciri sepunya
7(b)
Name of substance
Nama bahan
Total
ForExaminers
Use
[4 marks][4 markah]
8. (a) Diagram 8.1 shows two shirts of different colours which are being dried
under the same conditions.
Rajah 8.1 menunjukkan dua helai baju yang berlainan warna dijemur di
Blabcakwsahhirtkeadaan yang sama.
Baju hitam
Situation A
Situasi A
White shirt
Baju putih
Situation B
Situasi B
SMS Muzaff
D
a
i
r
a
S
g
y
ra
a
m
h ,
8
M
.1
elaka
Rajah 8.1
SULIT
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(i) Based on your observations in Figure 8.1, state the difference in
the time taken for the shirts to dry in Situation A and Situation B.
Berdasarkan pemerhatian anda dalam Rajah 8.1, nyatakan perbezaan
masa yang diambil untuk mengeringkan baju dalam keadaan A dan
keadaan B.
8(a)(i)
For
Examiners
Use
8(a)(ii)
[1 mark]
[1 markah]
(ii) What inference can be made based on Situation A and Situation B
in Diagram 8.1?
Apakah inferens yang boleh dibuat berdasarkan Situasi A dan Situasi
B dalam Rajah 8.1.
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....
.. [1 mark]
[1 markah]
8(a)(iii)
(iii) State one hypothesis based on your observations in Figure 8.1.
Nyatakan satu hipotesis berdasarkan pemerhatian dalam Rajah 8.1.
..
.
[1 mark][1 markah]
(b) A student carried out an experiment to investigate the absorption of heat
by different types of surfaces. The initial temperature of the flasks were
taken. The flasks were then heated for 5 minutes before the final
temperature of the flasks were taken.
Seorang pelajar menjalakan satu eksperimen untuk menyiasat
penyerapan haba oleh jenis permukaan yang berlainan. Suhu awal
kelalang kon diambil. Kelalang-kelalang kon itu dipanaskan selama 5
minit sebelum suhu akhir diambil.
For
Examiners
Use
Thermometer
Termometer
Conical flaskKelalang kon
10 cm
Black, dullsurface
Permukaan hitampudar
Conical flaskKelalang kon
10 cm
White, shinysurface
Permukaan putih
ThermometerTermometer
PSMS Muzaffar Syah , Melaka
Diagram 8.2
Rajah 8.2
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(i) Diagram 8.3 shows the final reading of thermometers P and Q.
Record the readings in Table 8.4 and calculate the rise in
temperature in each flask.
Rajah 8.3 menunjukkan bacaan akhir thermometer P dan Q.
Rekodkan bacaan dalam Jadual 8.4 dan kira peningkatan suhu dalam
setiap kelalang kon.
40 40
30 30
20 20
For
Examiners
Use
P Q
Diagram 8.3Rajah 8.3
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P Q
Initial temperature (oC)
Suhu awal (oC)
28 28
Final temperature (o
C)Suhu akhir (oC)
Rise in temperature (oC)
Kenaikan suhu (oC)
Riseintemperatu
re(oC)
Kenaikansuhu(oC)
8(b)(i)
Table 8.4Jadual 8.4
[2 marks][2markah]
(ii) Based on Table 8.4, draw a bar chart to show the rise in
temperature in P and Q.
Berdasarkan Jadual 8.4, lukiskan satu carta bar untuk menunjukkan
kenaikan suhu dalam P dan Q.
8
6
For
Examiners 4Use
2
SMS Muzaffar Syah , Melaka
Conical FlaskKelalang kon
SULIT
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8(b)(ii)
[2 marks][2 markah]
8(b)(iii)
For
Examiners
Use
8(b)(iv)
(iii) Based on the bar chart, what can you say about the rise in
temperature in the conical flasks?
Berdasarkan carta bar, apakah yang boleh dinyatakan tentang
kenaikan suhu didalam kelalang-kelalang kon itu?
.
.
[1 mark][1 markah]
(iv) What is the relationship between the colour of the surface and the
rate of heat absorption?
Apakah hubungan antara warna permukaan dengan kadar
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Manipulated
variable:
Pembolehubah
yang dimanipulasi
..
Responding
variable:
Pembolehubah
yang berak balas
..
Fixed variable:
Pembolehubah
yang ditetapkan
..
penyerapan haba?
..
..
[1 mark][1 markah]
(c) State the variables involved in this experiment.
Nyatakan pembolehubah dalam eksperimen ini.
8(c)
Total
marks][3
[3 markah]
END OF QUESTION PAPER
KERTAS SOALAN TAMAT
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SKEMA JAWAPAN
PEPERIKSAAN PERCUBAAN PMR SCIENCE PMR 2008
No. Skema Markah Jumlah
1(a)
1(b)
M: Plant cellN : Animal cell
1 mark for each correct answer
Q
1 mark
1 mark
2 marks
1 mark
R
S
P
1(c)Structure
StrukturFunction
Fungsi
Regulates the movement of
Q substances in and out of the cell
1 mark 2 marks
Protects and maintains theshape of the cell
R
Controls all activities of the cell
SContains cell sap
1 mark for each correctly matched pair
1(d) Nucleus//Cytoplasm// Cell Membrane
1 mark(either one)1 mark 1 mark
Total 6 marks
2(a)(i) Organism B 1 mark 1 mark
2(a)(ii) Because it makes its own food. 1 mark 1 mark
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2(b)(i) Four// 4 1 mark 1mark
2(b)(ii) PaddyplantGrasshopperLizardEaglePaddyplantRatSnakeEaglePaddyplantRatEaglePaddyplantRabbitEagle
1 mark (either one answer)
1 mark 1 mark
2(c) The other animals in the food chain will starve and
reduce in numbers
1 mark 1 mark
2(d) There will be a decrease in the paddy population// There
will be an increased in snake population
1 mark 1 mark
2(e) The sun 1 mark 1 mark
Total 7marks
3(a)
1 mark 1 mark
3(b) Phloem tissues 1 mark 1 mark
3(c) The removal of phloem cells/tissues stop
manufactured food from moving downwards
thus food accumulates in the region above the
ring.
The manufactured/synthesized food is unable to
move downwards thus food substances
accumulate in the regions above the ring
2 marks 2 marks
3(d)
X
1 mark 1 mark
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sce paper 2 trial PMR PHG 2008
SMS Muzaffar Syah , Melaka
3(e) Phloem tissues/ cells transport
manufactured(synthesized) food from the leaves to the
stem and roots//Phloem tissues/ cells transport
manufactured(synthesized) food from the leaves to allparts of the plants
1 mark 1 mark
Total 6marks
4(a) P: Solid
Q:Gas
R:Liquid1 mark for each correct answer
1 mark 3 marks
4(b) P:Arrangement of particles are compact and orderly //
closely packed // particles vibrate in their respective
positions
Q:Arrangement of particles are very loose anddisorderly // particles move randomly //particles movefast // particles move freely
1 mark
1 mark
2 marks
4(c) Any suitable answers: Oxygen ; Carbon dioxide ;
Nitrogen, etc
1 mark 1 mark
4(d) By heating 1 mark 1 mark
Total 7marks
5(a) Fractional Distillation of Petroleum 1 mark 1 mark
5(b)(i) The higher the boiling point of a fraction, the darker its
colour
1 mark 1 mark
5(b)(ii) P:PetrolQ:Kerosene
R:DieselS:Lubricating oil
Any two correct answers
2 marks 2 marks
5(c)(i) Fuel for motor vehicles and airplanes. 1 mark 1 mark
5(c)(ii) Because P is a non-renewable form of energy 1 mark 1 mark
Total 6marks
6(a) Reading of X = 0.48 A 1 mark 1 mark6(b) The ammeter reading will decrease. 1 mark 1 mark
6(c) 0.44 A 1 mark 1 mark
6(d) The current flow in a circuit decreases as the resistance
increases // As the resistance in a circuit increases, the
current flow in a circuit decreases.
1 mark 1 mark
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sce paper 2 trial PMR PHG 2008
SMS Muzaffar Syah , Melaka
6(e)
1 mark for each correct answer
1 mark 2 marks
6(f) Resistance (R) = Voltage(V)
Ampere (A
R = V
IR = 0.6V
0.2A= 3.0 Ohm // 3.0
1 mark for correct substitude of numbers
1 mark for the correct answer
1 mark 2 marks
Total 8marks
7(a) J: Made up of two particles//made up of one type of
particles//K:Made up of two particles//made up of two different
types of particles
L:Made up of eight particles//made up of one type of
particlesM:Made up of three particles//made up of two different
types of particles
1 mark for each correct answer
1 mark 4 marks
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sce paper 2 trial PMR PHG 2008
SMS Muzaffar Syah , Melaka
7(b)
Oxygen, Sodium chloride, Sulphur, Water
Oksigen, Natrium klorida, Sulfur, Air
Made up of more than Made up of one type ofone type of particles particles
Sodium chloride and
waterOxygen and sulphur
Oxygen, Sodium chloride, Sulphur, WaterOksigen, Natrium klorida, Sulfur, Air
Made up of two Made up of more thanparticles two particles
Oxygen and sodium
chlorideSulphur and water
1 mark for each box.
1 mark 4 marks
Total 8marks
8(a)(i) (Shirt in) Situation A takes a shorter time to drycompared to the (shirt in) Situation B// (Shirt in)Situation A dries faster than (shirt in) Situation B(Shirt in) Situation B takes a longer time to drycompared to (shirt in) Situation B// (Shirt in) Situation Bdries slower than (shirt in) Situation A
1 mark 1 mark
8(a)(ii) Black shirt absorbs heat better/faster than white shirt//White shirt absorbs heat slower than black shirt//
Absorption of heat depends on the colour of the shirt
1 mark 1 mark
8(a)(iii) Black shirt absorbs heat better than white shirt//Black surface absorbs heat better than white surface//The darker the colour, the faster the shirt dries//The darker the surface, the faster it absorbs heat
1 mark 1 mark
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sce paper 2 trial PMR PHG 2008
P Q
Final
temperature
(O
C) 35O
C 31O
CRise in
temperature
(OC) 7 OC 3 OC
Riseintemp
erature(oC)
8(b)(i)
2 marks
1 mark
1 mark
8(b)(ii) 2 marks 2 marks
8
6
4
2
8(b)(iii)
The rise in temperature in P is higher than Q//The rise in tempeP ture in P anQd Q are different
1 mark 1 mark
8(b)(iv) The darker the surface, theChoignhicearltFhleasrakte of heatabsorptionA dark/black coloured surface absorbs heat faster thana light/white coloured surface
1 mark 1 mark
8(c) Type of surfaceRise in temperature//Final reading of thermometerDistance of flask from Bunsen burner//Size of flask
1 mark1 mark
1 mark
1 mark1 mark
1 mark
Total 12marks