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PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI
SCIENCE
FORM 3
MODULE 8
PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI
GENERATION OF ELECTRICITY
MINISTRY OF EDUCATION MALAYSIA
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MODULE 8: GENERATION OF ELECTRICITY
Arahan Kepada Guru:
1. Modul ini mengandungi tiga puluh enam soalan.
2. Modul merangkumi enam konstruk yang diuji
K1 - Memahami soalan dalam bahasa Inggeris
K3 - Memahami istilah sains dalam bahasa Inggeris
K5 - Menguasai konstruk pengetahuan
K6 - Menguasai konstruk kefahaman
K7 - Menguasai konstruk kemahiran
K10 - Memahami pengajaran dan pembelajaran dalam bahasa Inggeris
3. Guru hendaklah memastikan murid menulis maklumat diri dalam kertas jawapan objektif yang disediakan.
4. Guru memastikan murid menghitamkan pilihan jawapan (objektif) pada kertas jawapan objektif yang disediakan
5. Guru hendaklah menyediakan kertas jawapan yang berasingan bagi soalan-soalan subjektif.
6. Guru MESTI membaca arahan dan soalan bagi Soalan 32 hingga 36 dengan jelas. Guru boleh mengulang membaca soalan
jika perlu. Guru hendaklah mengarahkan pelajar menjawab dengan menghitamkan pilihan jawapan bagi soalan tersebut padakertas jawapan objektif.
7. Guru hendaklah menanda jawapan murid diakhir ujian dan merekod jumlah bilangan soalan salah bagi setiap konstruk di
kertas jawapan objektif (OMR) murid. Guru dikehendaki mengumpul kertas jawapan objektif (OMR) semua murid mengikut
kelas masing-masing dan mengikut arahan selanjutnya seperti di dalam manual prosedur pengendalian ujian diagnostik.
Modul ini mengandungi 23 halaman bercetak
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MODULE SUMMARYSCIENCE FORM 3 - GENERATION OF ELECTRICITY
Konstruk Penerangan konstruk No. Soalan JumlahSoalan
Bil soalan gagal dijawab(untuk pemulihan)
sekurang-kurangnya
K1 Memahami soalan dalam Bahasa Inggeris 1, 2, 3, 4 4 3
K3 Memahami istilah sains dalam Bahasa Inggeris 5, 6, 7, 8 4 3
K5 Menguasai konstruk pengetahuan 9, 10, 11, 12, 13, 14, 15,16, 17, 18, 19, 20
12 7
K6 Menguasai konstruk kefahaman 21, 22, 23, 24, 25 5 3
K7 Menguasai konstruk kemahiran 26, 27, 28, 29, 30, 31 6 4
K10 Memahami pengajaran dan pembelajarandalam Bahasa Inggeris
32, 33, 34, 35, 36 5 3
JUMLAH 36
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Soalan Item Diagnostik Jika pelajar gagal menjawab
soalan ini pelajar menghadapi masalahberikut:
S1 The table shows the functions of transformers.
Type of transformer Function
Step-down transformer To decrease the voltageStep-up transformer To increase the voltage
What is the function of a step - down transformer?
A To lower the voltageB To step-up the voltageC To distribute power
D To generate voltage
Answer : A
Tidak memahami perkataan“step-up” dalam arahan soalan
Cadangan Pemulihan :
• Menggalakkan penggunaankamus
• Dwibahasa
• Glossari
• ”Learn a word a day”
• Dengan mempamerkanterminologi yang seringdigunakan dalam p & p .
S2 A 3-pin plug consists of brown, blue and yellow with green stripes wires.How many coloured wires does a 3-pin plug have?
A OneB TwoC ThreeD Four
Answer : C
Tidak memahami perkataan“coloured”
Cadangan Pemulihan :
• Menggalakkan penggunaankamus dwibahasa
• Glossari
• ”Learn a word a day”
• Melabel 3 – pin plug
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S3 The table shows types of generators and their sources.
Type of generator SourceHydroelectric generator Water
Thermal generator Fossil fuel
Which of the following generator of electrical energy uses water as a source?
A Thermal generator B Gas turbine generator
C Nuclear generator D Hydroelectric generator
Answer : D
Tidak memahami perkataan“sources” dan “generator of
electrical energy”
• Cadangan Pemulihan :
• Menggalakkan penggunaankamus dwibahasa
• Glossari
• ”Learn a word a day”
dengan mempamerkanterminologi yang seringdigunakan dalam p & p.
S4 The figure shows a 3 - pin plug Tidak memahami perkataandalam rajah.
Cadangan Pemulihan :
• Glossari
• ”Learn a word a day”
• Melabel wayar denganwarna sebenar
• Menggunakan kamus
dwibahasa
earth wire( yellow with green stripes )
fuse
live wire( brown )
neutral wire( blue )
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The colour of a live wire is __________
A yellow with green stripesB blueC brownD white
Answer : C
S5 Alternative sources of energy that come from the plant fibre, husks, paddy straws,coconut and oil palm husks are called _____________ .
A solar energyB heat energyC biomass energy
D potential energy
Answer : C
Tidak memahami istilah” sources of energy ”
Cadangan Pemulihan :
• Jadualkan istilah sains
dalam bahasa Inggerismengikut topik danpamerkan dalammakmal/kelas
• Pengenalan kepada istilahsains dalam Bahasa Inggerisdengan menggunakan kadimbasan
• Kuiz istilah
• Kamus istilah
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S6 Name the wire that allows excess current to escape directly to the earth to
prevent electric shock.
A Live wireB Earth wireC Neutral wire
Answer : B
Pelajar tidak memahami istilah“earth wire, live wire andneutral wire”
Cadangan Pemulihan :
• Jadualkan istilah sainsdalam Bahasa Inggerismengikut topik danpamerkan dalammakmal/kelas
• Pengenalan kepada istilahsains dalam Bahasa Inggerisdengan menggunakan kadimbasan
• Kuiz istilah
• Kamus dwibahasa
• Pertandingan mewarnawayar 3 – pin plug
S7 A current produced by a battery and flows only in one direction is known as a / an _________
A alternating currentB direct current
C excess current
Answer : B
Tidak mengetahui istilah“ alternating current dan directcurrent”
Cadangan Pemulihan :
• Jadualkan istilah sainsdalam Bahasa Inggerismengikut topik danpamerkan dalammakmal/kelas
• Kuiz istilah
• Kamus istilah
• Glossari
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S8 The current that flows through a shorter path with a lower resistance is known as
a ___________
A complete circuitB series circuitC short circuitD parallel circuit
Answer : C
Tidak mengetahui istilah“resistance, current dan circuit “
Cadangan Pemulihanl :
• Jadualkan istilah sainsdalam Bahasa Inggerismengikut opic danpamerkan dalammakmal/kelas
• Pengenalan kepada istilah
sains dalam Bahasa Inggerisdengan menggunakan kadimbasan
• Kuiz istilah
• Kamus dwibahasa dankamus istilah
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S9 Identify a step-down transformer.
Answer : D
Tidak memahami rajahtransformer.
Cadangan Pemulihan :
• Pengenalan kepada istilahsains dalam Bahasa Inggerisdengan menggunakan kadimbasan
• Kuiz istilah
• Melabel rajah transformer • Pemahaman istilah yang
berkaitan dengantransformer
inputoutput
a.c supply
a.c supply
outputinput
a.c supply
outputinput
A
B
C
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S10 The figure shows a transmission system. Which part represents the National Grid
Network?
Answer : C
Tidak mengetahui istilah“ transmission system ”
Cadangan Pemulihan :
• Jadualkan istilah sainsdalam Bahasa Inggerismengikut topik danpamerkan dalam
makmal/kelas• Kamus dwibahasa
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S11 A fuse is connected to the ____________
A earth wireB neutral wireC live wire
Answer : C
Tidak dapat mengingatbagaimana wayar di sambung
Cadangan Pemulihan :
• Latihtubi
• Kuiz
• Pasangkan 3 – pin plugsecara hands on
S12 At the hydroelectric station, the turbine is rotated by
A gasB water C pistonD steam
Answer : B
Tidak mengetahui maksud“hydroelectric station” danturbine
Cadangan Pemulihan :
• Latihtubi
• Kuiz
• Kamus istilah dan kamusdwibahasa
S13 Which wire is correctly matched with its colour?
Wire Colour
A Neutral BlueB Earth Brown
C Live Green
Answer : A
Tidak mengenalpasti warnaberkaitan dengan jenis dawai.
Cadangan Pemulihan :
• Latihtubi
• Kuiz
• Pasangkan 3 – pin plugsecara hands on.
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S14 A fuse is made of a material that has a __________________
A low melting pointB low freezing pointC low boiling point
Answer : A
Tidak mengetahui maksud“melting point”
Cadangan Pemulihan :
• Latihtubi
• Kuiz
• Kamus istilah
S15 Which of the following electrical generators uses a renewable energy source?
A Thermal generator B Hydroelectric generator C Diesel generator D Gas turbine generator
Answer : B
Tidak mengetahui jenis – jenispenjana elektrik.
Cadangan Pemulihan :
• Latihtubi
• Kuiz
• Lawatan ke stesen penjanaelektrik yang berkenaan
S16 Which of the following is correctly matched?
Wire Function
A Neutral Carries electric current back to the earth
B Earth Carries the electric current back to its sourceC Live Carries electric current from substation to the house
Answer : C
Tidak dapat mengingat fungsidawai elektrik
Cadangan Pemulihan :
• Latihtubi
• Kuiz
• Penerangan tentang fungsimenggunakan ”power -point”
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S17 What is the value of voltage supplied to our homes?
A 240 VB 1100 VC 1500 VD 33000 V
Answer : A
Tidak mengetahui nilai voltanyang digunakan di rumah.
Cadangan Pemulihan :
• Kuiz
• Meneliti peralatan elektrik dirumah
S18 Which device is used at homes to prevent short circuit?
A SwitchB PlugC FuseD Transformer
Answer : C
Tidak mengenal nama-namakomponen dalam litar elektrik.
Cadangan Pemulihan :
• Melabel / menamakankomponen elektrik
• Kuiz
• Glossari
S19 What happens to the earth wire when a short circuit occurs ?
A It meltsB It breaks the circuitC It blows the fuse in a 3 - pin plugD It directs the leaked current to the ground
Answer : D
Tidak mengetahui cara ”earthwire” menghalang pengaliran
arus.
Cadangan Pemulihan :
• Kuiz
• Latih tubi
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S20 The amount of electrical energy used at home depends on ______________
I power II resistanceIII time
A I onlyB I and IIC I and IIID II and III
Answer : C
Tidak tahu menggunakanformula berkaitan untuk
menyelsaikan masalah
Cadangan Pemulihan :
• Menulis formula danpamerkan di dalam makmaldan kelas
• Latihan mengira• Kamus istilah
• Glosari
S21 The function of a fuse in the fuse box in an electrical wiring system is to _______
A measure the amount of electrical energy used.B decrease the voltage of the current supplied to homes.C increase the voltage of the current supplied to homes.D cut off the current supply when the current exceeds a certain value.
Answer : C
Pelajar tidak dapatmengenalpasti fungsi ”fuse”
Cadangan Pemulihan :
• Latihtubi fungsi ”fuse”
• Kuiz
S22 Why does the fuse in a 3-pin plug melt when it is connected to an electric iron?
A The live wire is too thinB The fuse is connected to the Earth wireC There is excess current flowing in the circuitD The neutral wire has a very high melting point
Answer : C
Tidak mengetahui cara fuseberfungsi
Cadangan Pemulihan :
• Pamerkan kedudukan fusedalam 3 – pin plug
• Demonstrasi bagaimana
fuse terbakar
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S23 A circuit is set up as shown. Where should a fuse be placed in order to prevent
excess current from flowing through the circuit?
Answer : B
Tidak dapat kenalpasti jenis-
jenis litar.
Tidak dapat tentukankedudukan fuse
Cadangan Pemulihan :
• Melukis jenis-jenis litar
• Memasang litar secarahands on
• Kuiz• Kamus istilah
C
D
A B
Neutralwire
live wire
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S24
What is the device shown in the figure?
A Primary coil
B Secondary coilC Step-up transformer D Step-down transformer
Answer : D
Tidak dapat mengenalpastirajah jenis transformer
Cadangan Pemulihan :
• Latihan mengenalpasti jenistransformer
• Latihan menentukan primarycoil dan secondary coil
• Kamus istilah• Glosari
S25
The device that has the above characteristics is a ________
A transformer B power distributor C step-up transformer D step-down transformer
Answer : C
Tidak memahami ciri-ciri step
up transformer
Cadangan Pemulihan :
• Menggalakkan pelajar menjalankan eksperimendengan merangka dan
merancang penyediaan alatradas
• Kuiz
• Menamakan komponen-komponen dalamtransformer
• Used to increase voltage
• Output voltage is greater
• Secondary coil is more than the primary coil.
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S26 Kampung Sentosa is located in a rural area. There is a river flowing through the
village. Which of the following is more economical to generate electricity for the
village?
A Diesel power stationB Thermal power stationC Gas turbine power stationD Hydroelectric power station
Answer : D
Tidak dapat ”visualise”pernyataan yang diberikan
Tidak dapat menganalisasituasi yang diberi
Cadangan Pemulihan :
• Kuiz dan latih tubimengenalpasti sumber bagi
jenis-jenis penjana elektrik
• Kamus istilah• Glosari
S27 A transformer has a voltage of 4.0 V in the primary coil and 2.0 V in thesecondary coil.Which diagram represents this transformer?
Tidak mahir mengenalpastikomponen dan fungsi setiapkomponen transformer
Cadangan Pemulihan :
• Kuiz
• Glosari
• Kamus istilah
• Melukis dan melabel
step – up dan step – downtransformer
A
B
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Answer : B
S28 An electric light bulb is labelled 120 W, 240 V.
What is the amount of current flowing through the bulb?
A 240 AB 120 AC 2.0 A
D 0.5 A Answer : D
Tidak berkemahiran mengiradengan menggunakan formula
Cadangan Pemulihan:
• Latih tubi menyelesaikan
masalah denganmenggunakan formula
S29 An electric appliance labelled 1000 W is supplied with a voltage of 250 V .What is the rating value of a fuse that is suitable to be used?[ Given that, P= VI]
A 3 AB 4 AC 5 A
Answer : C
Tidak berkemahiran mengiradengan menggunakan formula
Tidak dapat menggambarkanpernyataan / situasi yang diberi
Cadangan Pemulihan:
• Latih tubi menyelesaikanmasalah denganmenggunakan formula
• Latihan menggambarkansituasi – situasi yangdiberikan.
C
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S30
Based on the information above, which of the following consumes the highestcost of electrical energy?
Electricalappliance
Power (W) Time used (h)
A Iron 1000 ½B Electric kettle 1500 ½
C Rice cooker 450 1
D Table fan 45 5
Answer : B
Tidak berkemahiran mengiradengan menggunakan formula
Cadangan Pemulihan:
• Latih tubi menyelesaikanmasalah denganmenggunakan formula
• Kuiz mengira
Electrical energy (kWh) = power X time
Cost for 1 kWh of electrical energy = 20 cents
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S31 The diagram shows three similar bulbs connected to transformers A, B and C.
The number of turns in the primary coils for each transformer is the same.Which transformer A, B or C has highest number of turn of the secondary coil?
Answer : C
Tidak dapat menggambarkanpernyataan yang diberi.
Tidak dapat membezakan rajahstep – up dengan step – downtransformer.
Cadangan Pemulihan :
• Latihan membina step – up /
step – down transformer menggunakan komponen –komponen yang diberi (hands on )
• Kuiz
• Latih tubi
12 V
12 V
12 V
A
B
C
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S32
Teacher reads
Which of the following causes turbine to rotate?
A Coal
B OilC Steam
Answer : D
Tidak memahami P & P danperkataan dalam BahasaInggeris
Cadangan Pemulihan:
• Penggunaan kamusdwibahasa
• Cooperative learning
• Peer learning
S33
Teacher reads
How many coils are there in a simple transformer?
A One
B TwoC Three
Answer : B
Tidak memahami pengajarandan perkataan dalam BahasaInggeris
Cadangan Pemulihan:
• Penggunaan kamus
dwibahasa• Cooperative learning
• Peer learning
In power station that use thermal generators, fuel such as coal or oil
are burned in a boiler to produce steam. The steam, under greatpressure, flows through pipes and valves and rotates the turbine at high
A simple transformer consists of a soft iron core with two coils that are
primary coil and secondary coil.
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S34
Teacher reads
What determines the output voltage in a transformer?
A The number of turns in primary coil onlyB The number of turns in secondary coil onlyC The number of turns in primary and secondary coil only
Answer : C
Tidak memahami pengajarandan perkataan dalam BahasaInggeris
Cadangan Pemulihan:
• Penggunaan kamusdwibahasa
• Peer learning
• Cooperative learning
S35
Teacher reads
The electrical wiring system at homes includes
A circuit breaker and electric cableB transformer and electric metreC fuse box and main switch
Answer : C
Tidak memahami pengajarandan perkataan dalam BahasaInggeris
Cadangan Pemulihan:
Penggunaan kamus dwibahasaProgram Mentor – menteeCooperative learning
In a transformer, the number of turns of wire in primary coil isdifferent from secondary coil. The number of turns of wire inthe primary and secondary coil determines the output voltage.
The electrical wiring system at homes consists of a fuse box, electric
meter, main switch, circuit breaker, main electrical panel, live wire,
neutral wire and earth wire.
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S36
Teacher reads
What is the colour code for a live wire?
A Brown
B BlueC Yellow with green stripes
Answer : A
Tidak memahami pengajarandan perkataan dalam BahasaInggeris
Cadangan Pemulihan:
• Penggunaan kamusdwibahasa
• Cooperative learning
• Peer learning
The wires used in a 3-pin plug are identified by using the international
colour code. The colour of the live wire is brown, the neutral wire isblue and the earth wire is yellow with green stripes.