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Modul Jom Lulus Fizik (Bahagian C) 201

5

CONTOH SOALAN KERTAS 2: BAHAGIAN B (SOALAN 9 /10)

1) Diagram 1 below shows a thermometer.

Diagram 1/ Rajah 1

You are required to give some suggestions to design an efficient alcohol thermometer to be

used in physics research expedition at North Pole. Using your nowledge about heat and

properties of materials! explain how to build a thermometer which can function effectively

based on the following aspects"

#i$ %trength of thermometer

#ii$ %ensitivity of thermometer

#iii$ Design of the thermometer so that the scale can easily be read

#iv$ &ree'ing point of the liquid

#v$ (hicness of the glass bulb)s wall

[10 mark / markah!

DISEDIAKAN OLEH : PN ROHAIDA BINTI ABDUL HAMID SMK

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2) Diagram * below shows a rocet.

Diagram 2 / Rajah 2

You are required to give some suggestions to design a rocet which can travel in the outer

space with higher acceleration. Using the nowledge on forces and motion and the

properties of materials! explain the suggestions based on the following aspects"

#i$ the shape of the rocet

#ii$ the material used to build the rocet

#iii$ additional supply needed that enable the rocet to move in outer space

#iv$ the structure of the rocet to accelerate.

#v$ si'e of the combustion chamber

[10 mark / markah!


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") (he manager of a carnival near your home sees your advice on handling a hot air

balloon. (he balloon should be able to rise to about the height of a five+storey

building! carry up to three people and can be brought down to the same spot after acertain time.

Diagram " / Rajah 3

,xplain your suggestion taing into account"

#i$ %i'e of the envelope

#ii$ -haracteristic of the materials used for the envelope

#iii$ ,quipment required to rise up the balloon.

#iv$ -haracteristics of the material used for the baset!

(v) (he best times in a day to launch the balloon

[10 mark / markah!


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#) Diagram shows a cross+section of thermal flas that is used to eep a hot coffee.

Rajah 4 menunjukkan keratan rentas satu termos untuk menyimpan air kopi

panas.

Diagram #/ Rajah 4

Using the suitable physics concepts! suggest modifications that can be made to the

thermal flas so that it can eep the coffee hot for a longer period and also available

to eep cold drin. Your answer should include the following aspects"

Menggunakan prinsip fizik yang sesuai, terangkan pengubahsuaian yang perlu

dilakukan kepada termos supaya air kopi tersebut dapat mengekalkan kepanasan

pada masa yang lebih lama dan ia juga sesuai untuk menyimpan air minuman sejuk.

Jawapan anda hendaklah merangkumi aspek-aspek berikut:

+ type of material used as the cap of the thermal flas

jenis bahan yang digunakan sebagai penutup termos

+ type of inner wall and outer surface.

jenis dinding dalam dan luar

+ the density of material used

ketumpatan bahan yang digunakan

+ thermal strength of the flas

ketahanan terma termos

[10 mark/ markah !DISEDIAKAN OLEH : PN ROHAIDA BINTI ABDUL HAMID SMK

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Hot cof

Ko i anas

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$) (o attract more tourist to the island as in figure /! a contractor wants to build a beach

resort .0s a consultant you are ased to give suggestions on the proposed proect

based on the following aspects"

agi menarik pelan!ong ke pulau yang di tunjukkan dalam Rajah ".4, seorang

kontraktor ingin membina sebuah pusat peranginan .

#ebagai seorang perunding anda ditugaskan untuk memberi beberapa !adangan

mengenai projek yang merangkumi aspek $ aspek berikut%

#i$ (he location of the resortlokasi pusat peranginan

#ii$ &eatures to reduce the erosion of the shore pembinaan yang dapat mengurangkan hakisan pantai

#iii$ &eatures to enable children to enoy swimming in calm water. pembinaan kawasan di mana air laut yang tenang dan kanak $ kanak dapatberenang

Diagram $/ Rajah 5

[10 mark/ markah !


TAMAN DAYA

!

Ca"

Tanjung

Ba#

Teluk

Chalt

Rumahtumpan

gan

Boats

Bot -bot

$tt

#

Jeti

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%) Diagram 2 shows the new hall in %eolah 3enengah 4ebangsaan %ungai Pera. 0musical concert will be held at the hall in a few months time.Rajah & menunjukkan sebuah dewan baru di #ekolah Menengah #ungai 'erak. #uatu

konsert muzik akan diadakan di dalam dewan tersebut dalam masa beberapa bulan yang

akan datang.

Diagram 15.6Rajah "(.)

Diagram %/ Rajah 6

7bserve Diagram 2 carefully! there are some improvements can be made to enhance the

sound effect.'erhatikan Rajah & dengan teliti, terdapat penambahbaikan yang boleh anda lakukan untuk

meperbaiki kesan suara.

Using appropriate physics concepts! explain the use of suitable equipment and furnishings to

improve the sound effect of the concert.*engan menggunakan konsep fizik yang sesuai, terangkan kegunaan peralatan dan

pemasangan perabot yang sesuai untuk memperbaiki kesan suara konsert tersebut.

Your answer should include the following aspects"Jawapan anda hendaklah merangkumi aspek-aspek berikut:

#i$ Distance between of two stereo speaersJarak antara dua pembesar suara stereo


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&"ak'

Pembesar

suaraMic'o"hons

&tag

Penta

s

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#ii$ Positioning of speaers and microphones

+edudukan pembesar suara dan mikrofon

#iii$ &urnishings of the hall and other aspects'emasangan perabot dewan dan aspek lain

[10 mark/ markah] &)

Diagram &/ Rajah 7

During transmission and reception of electrical power! pylons such as shown by

diagram 8 play an important role. 9ased on diagram 8! your nowledge about

transmission of electrical power and other related physics concept! explain"

#emasa penghantaran dan penerimaan tenaga ele!trik, tiang-tiang seperti pada rajah

, memainkan peranan yang sangat penting. erdasarkan rajah pengetahuan anda

tentang penghantaran kuasa elektrik dan konsep fizik lain yang berkaitan, terangkan:

(i) the characteristics of materials used to build the pylons. !iri-!iri bahan yang digunakan untuk membina tiang-tiang tersebut.

(ii) the design of the pylons. rekabentuk tiang-tiang.

#iii$ the characteristics of the cable used in the electrical power

transmission. !iri-!iri kabel yang digunakan untuk penghantaran

tenaga elektrik

[10 mark/ markah!


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') Diagram : shows the condition in a closed room with unsuitable installation of lamp.

Diagram '/ Rajah 8

Using appropriate physics concepts! explain suitable modification to the room and the lamp

so that the room condition becomes brighter and more comfortable. Your answer should

include the following aspects"

#i$ type of the lamp

#ii$ the energy efficiency of the lamp

#iii$ safety feature of the lamp

#iv$ wiring system for the lamp

[10 mark/ markah!

9) Diagram ; shows an electric bell.

Diagram 9/ Rajah 9DISEDIAKAN OLEH : PN ROHAIDA BINTI ABDUL HAMID SMK

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(he electric bell is found to be unable to hit the gong continuously. %uggest and explain the

modifications that need to be done on the electric bell to increase its efficiency.

Your answer should include the following aspects

#i$ shape of the core

#ii$ number of turn of coil

#iii$ material used for the core

#iv$ additional material

[10 mark/ markah!

10) Diagram 15 shows an underground water pipe which has a lea.

DIAGRA 10 / Rajah 10

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CONTOH SOALAN KERTAS 2: BAHAGIAN C (SOALAN 11 /12)

1)

Diagram 1 shows a parachute attached to a man)s body whose weight is 2/ g when he

umps off from the plane. (he ropes used are very light! strong! 6./ m long and do not

occupy a big space. (he table 1 below shows a few types of ropes which could be used to

mae the parachute.

Rajah " menunjukkan seorang lelaki dengan jisim & kg terjun dari sebuah kapal terbang

menggunakan sebuah payung terjun. ali yang digunakan adalah sangat ringan, kuat,

mempunyai panjang ). m dan tidak memerlukan ruang yang besar. Jadual " di bawah

menunjukkan beberapa jenis tali yang boleh digunakan untuk membuat payung terjun.

You are required to state the most appropriate characteristics of the rope to be used for the

parachute. (hen! determine which rope from the table above perfectly fits the characteristics

that you have given. >ustify your answer.

/nda diminta untuk menentukan !iri-!iri tali yang paling sesuai untuk membuat payung

terjun. +emudian, tentukan tali yang dapat memenuhi keseluruhan !iri-!iri yang telah anda

berikan.

[10mark/ markah!


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2) %pring is widely used in suspension system of vehicles such as car and motorcycle.(his is because of the elasticity of the spring. Diagram * below shows how a spring is

used in suspension system of a motorcycle.

#pring telah digunakan dalam system suspensi kenderaan seperti kereta dan juga

motorsikal. 0ni kerana sifat kekenyalan yang ada pada spring. Rajah 1 menunjukkan

bagaimana spring digunakan dalam sistem suspensi motosikal.

Diagram 2 / Rajah 2

(able below shows the characteristics of four types of spring to be installed as the

motorcycle spring.

Jadual below menunjukkan !iri-!iri bagi empat jenis spring yang akan dipasang sebagai spring motosikal.

%pring Diameter ? cm ,lastic limit ? N%pring

constant ? Nm+1

Natural

frequency ? @'

0 15.5 *55 */5 5.1

9 1*.5 255 885 /.5

- :.5 855 15*5 15.5

D 2.5 1155 6655 1.5

You are ased to choose a spring to be installed at the motorcycle .(he maximum mass

of the rider and the pillion rider is 155 g. ,xplain the suitability of the characteristics and

choose the most suitable spring. >ustify your choice.

/nda ditugaskan untuk memilih spring yang akan dipasang pada sebuah motosikal.

Jisim maksimum penunggang dan pembon!eng motosikal ialah "((kg. erangkan

kesesuaian setiap !iri dan tentukan spring yang paling sesuai. eri sebab bagi pilihan

anda.

[10 mark/ markah!


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%pring in suspension system.

#pring dalam sistem suspensi

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") You are given four choices of metals P! A! < and %. (he table below shows thecharacteristics for the four metals. /nda di berikan empat jenis logam ',2,R dan #. Jadual di bawah menunjukkan !iri-

!iri logam tersebut.

MetalLoga

m

ShapeBentuk

DensityKetumpatan/

kgm 3−

Specifc HeatCapacity

Muatan haatentu

StrengthKekuatan

P&t'amlind

Larus

*++ Lo, High

Q-valBujur

4!2 High High

RCi'clBulat 3 Lo, High

S

&t'amlind

Larus !++ High High

9ased on table givenerdasarkan jadual yang diberi,

,xplain the suitable characteristics of the metal to be used as the material to mae

the boat. @ence! determine the most suitable metal to be used as the material to

mae the boat and give yaur reasons

erangkan !iri-!iri logam yang sesuai yang digunakan untuk membuat bot.

entukan logam manakah yang paling sesuai untuk membuat boat d an berian

sebab anda.

[10 mark/ markah!


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4) Diagram shows four different stove designs and the pots used in the four solar

cooers P! A! < and %.

Rajah 4 menunjukkan empat rekabentuk dapur yang berbeza dan periuk yang digunakandalam dapur solar ',2,R dan #.

%olar cooer

*apur solar

%tove design

Rekabentuk dapur

Pot used in the box

'eriuk yang digunakan

P

A

<


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Dar aluminium pot

'eriuk aluminium gelap

Dar glass lid

'enutup ka!a gelap

Double reflectors

'emantul berganda

Plastic window

ingkap plastik

Blass window

ingkap ka!a

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%

You are required to determine the most suitable solar cooer for efficient cooing. %tudy the

specifications of all the four solar cooers based on the following features"

/nda dikehendaki menentukan dapur solar yang paling sesuai digunakan untuk memasak

dengan paling !ekap. +aji spesifikasi keempat-empat periuk solar itu berdasarkan aspek

berikut

+ type of window jenis tingkap

+ number of reflectorsbilangan pemantul

+ type of lid jenis penutup

+ arrangement of the aluminium potkedudukan periuk aluminium

,xplain the suitability of each feature. >ustify your choice.erangkan kesesuaian aspek-aspek itu. eri sebab bagi pilihan anda.

[10 mark/ markah!


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Double reflectors

'emantul bergandaBlass window

ingkap ka!a

Diagram # / Raa* #

Cla' glass lidPenutup kaca cerah

Dar aluminium pot suspended in a

clear pot ? 'eriuk aluminium gelap di

tindihkan di atas periuk !erah

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5) (able / shows / materials which can be used to mae an optical fibre.Jadual menunjukkan jenis bahan yang boleh digunakan untuk membina serabut optik.

3aterial

ahan

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%) You are a coach responsible to choose a student to oin the school baset ball team. 0

basic physical fitness test was carried out and the results based on certain

characteristics are as shown in table below.

/nda adalah seorang jurulatih yang ditugaskan untuk memilih seorang pelajar untuk

menjadi pemain bola keranjang sekolah. #atu ujian daya tenaga asas telah dijalankan

dan keputusannya berdasarkan !iri-!iri tertentu yang ditunjukkan dalam jadual di bawah.

Cha'act'isticsCi'i

&tudnts.la$a'

Mass Jisim(kg)

Hight

Tinggi

(m)

/s"ondingtimMasa

Tindak balas(s)

.o,' ( 0im takn tot'ans' !+ 'icks toa distanc o ! m)

Kuasa ( masa diambiluntuk memindahkan! batu bata pada

jarak m)

0im taknto com"lt1++m 'un

MasaLarian

"!!m (s)

+ 13+ ++14 minuts 5 minit

11+

B %! 1!+ +2+3 minuts 5 minit

1+%

C !+ 1+ ++1 2 minuts 5 minit 1+!

6 %+ 14+ ++! 2 minuts 5minit 112

7 4+ 1%+ ++4 1 minuts 5minit 124

9ased on table! explain the suitable characteristics of the student to be in the baset

ball team. -hoose which student will be in the basetball team and explain your

choice.

erdasarkan !iri-!iri dalam jadual, terangkan bagaimanakah anda menggunakan !iri

-!iri itu untuk memilih pelajar yang dikehendaki. 3yatakan pelajar yang manakah

akhirnya menjadi pilihan anda dan berikan sebabnya.

[10 mark/ markah!


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&)

-.+

Model

D+i -3 *+

,-i / kg m4"

Ketumpatan

eelun ! k

m"3

N5m6+r -3 5r mag+

#ilanan lilitan

eelun

Sr+g* -3 mag+

Kekuatan

manet

N5m6+r -3

+gm+ i *+

,-mm5a-r

#ilanan semen

dalam komutator

P ;*55 555Eow

Rendah

* segments

1 segmen

A 11255 ;555@igh

inggi

segments

4 segmen

< :;25 :555@igh

inggi

: segments

segmen

% 15/55 /5553edium

#ederhana

: segments

segmen

Ta6+ &/ $adual 7


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(able 8 shows the features in the design of four direct current motors! P! A! < and %.Your are required to determine the most suitable motor to lift a heavy obect smoothly.

Jadual menunjukkan !irri-!iri dalam rekabentuk empat buah motor arus terus, ', 2,

R, dan #. /nda dikehendaki menentukan motor yang paling sesuai digunakan untuk

mengangkat sesuatu objek berat dengan lan!ar.

%tudy the features of all the four motors" +aji !iri-!iri keempat-empat motor itu:

(i) the density of the wires of the coiletumpatan bagi wayar dalam gegelung

#ii$ the number of the coil

bilangan lilitan gegelung

#iii$ the strength of the magneteuatan magnet

#iv$ the number of segments in the commutator bilangan segmen dalam komutator

,xplain the suitability of the features and ustify your choice.erangkan kesusaian !iri-!iri itu.eri sebab bagi pilihan anda.

[10 mark/ markah!


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')

Ta6+ ' / $adual 8

(able : shows the specifications for four wires of the same diameter that can be used as a heating element of a bulb.

Jadual menunjukkan spesifikasi empat dawai berdiameter sama yang bolehdigunakan untuk membuat elemen pemanas sebuah mentol elektrik .

You are required to determine the most suitable wire and explain the suitability of the

aspects in (able :. /nda diminta mengenalpasti dawai yang paling sesuai dan terangkan kesesuaian

aspek-aspek di Jadual .

[10 mark/ markah!


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9) Diagram ; shows cross sectional shape and the characteristic of the four thermoses

You are required to determine the most suitable thermos which is able to maintain thetemperature of the hot drin for a long time and can be easily moved from one place to

another.

%tudy the characteristics of the four thermoses from the following aspects" + stopper +

material to mae the double layer wall + density + material in between the double wall

,xplain the suitability of the aspects. >ustify your choice.


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[10 mark / markah!


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10) 0s a researcher! you are assigned to investigate the characteristics of certainradioactive isotope that could be used to detect the thicness of paper in paper

factory. #ebagai seorang penyelidik, anda ditugaskan untuk mengkaji !iri-!iri bagi beberapaisotop radioaktif untuk digunakan sebagai bahan pengesan ketebalan kertas di sebuah kilang kertas.(able 15 below shows the characteristics of five radioisotopes.

Jadual "( di bawah menunjukkan !iri-!iri bagi lima jenis radioisotop.

6. (bahagian c)

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