1. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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SET 1
1 Diagram 1.1 and Diagram 1.2 shows the image formed by a convex lens when
the object is placed at different distance.
Rajah 1.1 dan Rajah 1.2 menunjukkan imej yang terbentuk apabila objek
diletakkan pada jarak objek yang berbeza.
object
image
Diagram 1.1
Rajah 1.1
object
image
Diagram 1.2
Rajah 1.2
(a) Based on Diagram 1.1 and Diagram 1.2, state the hypothesis of the
experiment.
Berdasar Rajah 1.1 dan Rajah 1.2, nyatakan hipotesis bagi eksperimen
ini.
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[ 1 mark ]
(b) Measure and write down the size of the image formed in Diagram 1.1
Ukur dan tulis saiz image yang terbentuk dalam Rajah 1.1
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2. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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Size :…………………………cm [ 1 mark ]
(c) Predict the size of the image if object is placed at 3F.
Ramalkan saiz imej jika objek diletakkan pada 3F.
……………………………………………………………………………….
[ 1 mark ]
(d) Give two characteristics of the image formed in Diagram 1.2.
Beri dua ciri imej yang terbentuk dalam Rajah 1.2.
1………………………………………………………………………………
2………………………………………………………………………………
[ 2 marks ]
(e) Mark (√ ) the optical device which use the lens as in Diagram
1.1 and Diagram 1.2
Tandakan (√ ) pada alat optik yang menggunakan kanta seperti Rajah
1.1 dan Rajah 1.2
Hand lens Periscope Camera
Kanta tangan Periskop Kamera
[ 1 mark ]
2 Diagrams 2.1(a) and 2.1(b) show an experiment to study the hardness of copper
block and bronze block when the weights are dropped onto a steel ball.
Rajah 2.1(a) dan 2.1(b) menunjukkan satu eksperimen untuk mengkaji kekerasan
blok kuprum dan blok gangsa apabila pemberat dijatuhkan ke atas bola keluli.
Weight
Pemberat
( 5 kg )
Steel ball
Bola keluli
Bronze block
Blok gangsa
Copper block
Blok kuprum
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3. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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DIAGRAM 2.1(a) DIAGRAM 2.1 (b)
RAJAH 2.1(a) RAJAH 2.1(b)
The effects on the copper block and bronze block are shown in Diagram 2.2(a)
and 2.2(b).
Kesan pada blok kuprum dan blok gangsa ditunjukkan dalam Rajah 2.2(a) dan
2.2(b).
Dent
Lekukan
X 0.6 cm
Copper block Bronze block
Blok kuprum Blok Gangsa
DIAGRAM 2.2 (a) DIAGRAM 2.2 (b)
RAJAH 2.2(a) RAJAH 2.2(b)
(a) Based on Diagram 2.2 (a), measure the diameter of the dent X and
complete Table 1.
Berdasarkan Rajah 2.2(a),ukur diameter lekukan X dan lengkapkan
Jadual 1.
Block Diameter of the dent / cm
Blok Diameter lekukan / cm
Copper
Kuprum
Bronze
0.6
Gangsa
TABLE 1
JADUAL1
[ 1 mark ]
(b) State the hypothesis for this experiment?
Nyatakan hipotesis untuk eksperimen ini?
……………………..……………………………………………………………
…………………………….……………………………………………………..
[ 1 mark ]
(c) State the variables in this experiment.
Nyatakan pembolehubah dalam eksperimen ini.
(i) Constant variable:
Pembolehubah dimalarkan:
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4. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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.…………………………………………………………………………..
(ii) Responding variable:
Pembolehubah bergerak balas:
…….…….………………………………………………………………
[ 2 marks ]
(d) Bronze is an alloy. State the operational definition for an alloy.
Gangsa adalah sejenis aloi. Nyatakan definisi secara operasi bagi aloi.
………………….………………….…………………………………………….
………………………………………………….…………….
………………….
[ 1 mark ]
3 Diagram 3 shows an experiment to study the difference betweeen vulcanise
rubber and natural rubber when a weight with the same mass is hang
Rajah 3 menunjukkan satu eksperimen untuk mengkaji perbezaan antara getah
tervulkan dengan getah asli apabila digantung dengan pemberat yang sama
jisim.
Vulcanise rubber Natural rubber
Getah tervulkan Getah asli
Weight
Pemberat Weight
pemberat
Diagram 3
Rajah 3
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5. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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(a) Based on Diagram 3, complete Table 2
Berdasarkan Rajah 3, lengkapkan Jadual 2
Length of rubber after weight is
Type of rubber Initial length of rubber hang (cm)
Jenis getah Panjang awal getah (cm) Panjang jalur getah apabila
digantung pemberat (cm)
Getah tervulkan 7
Getah asli 7
Table 2
Jadual 2 [ 2 marks ]
(b) Write down one inference based on the above observation
Tuliskan satu inferens berdasarkan pemerhatian di atas.
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[ 1 mark ]
(c) State the constant variable in this experiment.
Nyatakan pembolehubah yang dimalarkan dalam eksperimen ini.
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[ 1 mark ]
(d) What is the operational definition for vulcanise rubber?
Apakah definisi secara operasi bagi getah tervulkan?
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[ 1 mark ]
4 In an experiment, the velocity of a toy car is recorded in Table 3.
Dalam satu eksperimen, kelajuan kereta mainan direkodkan dalam Jadual 3
Time /s Velocity/ m/s
Masa/s Halaju /m/s
0 0
1 3
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6. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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2 6
3 8
4 9
5 9
Table 3
Jadual 3
(a) Using the data in Table 3, draw a graph of velocity against time.
Menggunakan data dalam Jadual 3, lukis satu graf halaju melawan masa.
[ 2 marks ]
(b) Based on the graph in 4(a), what is the relationship of time and velocity
on the first 2 seconds.
Berdasarkan graf dalam (a), apakah hubungan antara masa dengan
halaju pada 2 saat yang pertama.
…………………………………………………………………………………..
…………………………………………………………………………………..
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7. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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[ 1 mark ]
(c) Based on the graph in 4(a), what is the velocity of the toy car at 2.5
seconds?
Berdasarkan graf dalam 4(a), apakah halaju kereta mainan pada 2.5
saat.
……………………………………………………………………………………
[ 1 mark ]
(d) State the hypothesis of this experiment.
Nyatakan hipotesis bagi eksperimen ini.
……………………………………………………………………………………..
……………………………………………………………………………………..
[ 1 mark ]
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8. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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Set 1
Question
Marking scheme Marks
∑
Number Marks
1 (a) The further the object distance, the smaller 1 1
the size of image form.
`
(b) (please measure to get the answer) 1 1
(c) Any relevant value less than answer in (b) 1 1
(d) 1. Real
2. Inverted 2 2
3. Size bigger than object
Note: Any 2 observations
(e)
Hand lens Periscope Camera 1 1
 
TOTAL 6
2 (a) Diameter of dent X = .............+ 0.1 (cm) 1 1
(Measure to get the accurate answer)
(b) The diameter of the dent formed on the copper
block is bigger/ larger //
The diameter of the dent formed on the bronze 1 1
block is smaller //
Note : Negative hypothesis is accepted :
The diameter of the dent formed on the copper
block is smaller //
The diameter of the dent formed on the bronze
block is bigger/ larger //
The diameter of the dent formed depends on
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9. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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the type of metal block
(c) (i) Constant variable:
height of weight 1
mass of weight
diameter/ size of steel ball
Reject: Size of block
1 2
(ii) Responding variable: diameter of dent
(d) Alloy is a material /substance which form/ has a 1 1
smaller dent (when a weight is dropped onto it).
TOTAL 5
3 (a)
Vulcanise rubber 8 1
Natural Rubber 9 1 2
(b) Natural rubbel can stretch more (easily) than
vulcanise rubber// vise versa
. 1 1
Reject: more soft/ hard
(c) Thickness/ length of rubber// Mass of weight
1 1
(d) Vulcanise rubber is a rubber that stretchess
less when a weight is hang.
1 1
TOTAL 5
4 (a)
2 2
Note:
1. Transfer of all points correct – 1 mark
2. Smooth graph - 1 mark
(b) When the time increases, the velocity increases// 1 1
Velocity is directly proportional to time
(c) 7 (m/s) 1 1
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10. Program Galus Sains SPM SMK Kuala Pegang 2009
Latihan Pengukuhan – Set 1
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(d) As the time increases, the velocity increases//
Velocity increases with time
1 1
TOTAL 5
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