Teacher's Copy Module 8

8/6/2019 Teacher's Copy Module 8

http://slidepdf.com/reader/full/teachers-copy-module-8 1/23

PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI

SCIENCE

FORM 3

MODULE 8

PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI

GENERATION OF ELECTRICITY

MINISTRY OF EDUCATION MALAYSIA



2

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



3

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



4

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”


• Menggalakkan penggunaankamus dwibahasa

• Glossari


• Melabel 3 – pin plug



5

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


dengan mempamerkanterminologi yang seringdigunakan dalam p & p.

S4 The figure shows a 3 - pin plug Tidak memahami perkataandalam rajah.


• Glossari


• Melabel wayar denganwarna sebenar

• Menggunakan kamus

dwibahasa

earth wire( yellow with green stripes )

fuse

live wire( brown )

neutral wire( blue )



6

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 ”


• Jadualkan istilah sains

dalam bahasa Inggerismengikut topik danpamerkan dalammakmal/kelas

• Pengenalan kepada istilahsains dalam Bahasa Inggerisdengan menggunakan kadimbasan

• Kuiz istilah

• Kamus istilah



7

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”


• Jadualkan istilah sainsdalam Bahasa Inggerismengikut topik danpamerkan dalammakmal/kelas


• 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”


• Jadualkan istilah sainsdalam Bahasa Inggerismengikut topik danpamerkan dalammakmal/kelas

• Kuiz istilah

• Kamus istilah

• Glossari



8

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



9

S9 Identify a step-down transformer.

Answer : D

Tidak memahami rajahtransformer.



• 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



10

S10 The figure shows a transmission system. Which part represents the National Grid

Network?

Answer : C

Tidak mengetahui istilah“ transmission system ”


• Jadualkan istilah sainsdalam Bahasa Inggerismengikut topik danpamerkan dalam

makmal/kelas• Kamus dwibahasa



11

S11 A fuse is connected to the ____________

A earth wireB neutral wireC live wire

Answer : C

Tidak dapat mengingatbagaimana wayar di sambung


• 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


• 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.


• Latihtubi

• Kuiz

• Pasangkan 3 – pin plugsecara hands on.



12

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”


• 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.


• 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


• Latihtubi

• Kuiz

• Penerangan tentang fungsimenggunakan ”power -point”



13

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.


• 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.


• 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.


• Kuiz

• Latih tubi



14

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


• 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”


• 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


• Pamerkan kedudukan fusedalam 3 – pin plug

• Demonstrasi bagaimana

fuse terbakar



15

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


• Melukis jenis-jenis litar

• Memasang litar secarahands on

• Kuiz• Kamus istilah

C

D

A B

Neutralwire

live wire



16

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


• 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


• 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.



17

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


• 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


• Kuiz

• Glosari

• Kamus istilah

• Melukis dan melabel

step – up dan step – downtransformer

A

B



18

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 dapat menggambarkanpernyataan / situasi yang diberi

Cadangan Pemulihan:

• Latih tubi menyelesaikanmasalah denganmenggunakan formula

• Latihan menggambarkansituasi – situasi yangdiberikan.

C



19

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


Cadangan Pemulihan:

• Latih tubi menyelesaikanmasalah denganmenggunakan formula

• Kuiz mengira

Electrical energy (kWh) = power X time

Cost for 1 kWh of electrical energy = 20 cents



20

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.


• 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



21

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.



22

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


Cadangan Pemulihan:


• Peer 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


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.



23

S36

Teacher reads

What is the colour code for a live wire?

A Brown

B BlueC Yellow with green stripes

Answer : A


Cadangan Pemulihan:



• 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.

Documents

Teacher's Copy Module 8