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FizikKertas ISeptem ber20081 'A jam

ANCKA (;II ,IRANLA*

JABA'I'AN PELAJARAN NEGEKI JOHOK

PHYSlCSKertas 1

Salu jam li~ na elas miriit

JAN GA N BlJKA KEKTAS SOALAN IN1 SE l i lN GG A I)IBEHITAfllJ

I . Ker-ras soalan ini rrrengrrrrilrrngi50 .roulur~

Kertas soalan in i merigaridungi 36 halaman bercetaliJohor Trial SPM 2008

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SULTTEach question isfollowed by eifher three, four or five opfions. ('lloose rhe besf optionforeach quesfion hen blacken the correcf space on [he answer sheer.Tiap-fiupsoalan diikuti oleh soma ada tiga, empnt afau lima pilihan jmnvcipan. I'ilih satujcrwapun yang ferbaik bagi seriap soalun dan hifamkun ruongan yang betul pudu kertas

jmvapan anda.I Wh ich o f the following is a base quantity and its SI unit ?

Anfara berikzit yang mancrkuh kuanfilia.sc1.s dun unit S I nyrr?A M a s s I g B T i m e 1 h

Jisinr / g Masa I ,jC Current I mA D Temperature I K

Arus 1 mA Suhu 1 K

2 Diagram I shows a brick is placed on a balance X and then on b alance YRajah 1 menunjukkun safu bafu bafa dilefakkunpadapenimbang X dun kerriudianpada penimbang Y.

Balance X

brick

Balance Y

brick

What is measured by each balance'?Apakah yang clisukar oleh seriap penimbung?

Balance X- Balance YA weight mass

beraf jisimR niass weight

jisirn berarC mass massjivirn j is i rnD weight weightberaf berut

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SULIT 5 453111

3 W hich of the follow ing instruments is most accurate to measure the internaldiameter of a water pipe?Anta ra alat pengukuran beriku f, yang manaknh paling jitu digunakan untukm e n p k u r diameter dalam sebatang paip air?A meter rule

pembaris meterB measuring tape

pita p e n g u h rC vernier calliper

angkup vernierD micrometer screw gauge

fo lok skru mikrometer

4 Diagram 2 sh ow s the pattern of oil dripping at a constant rate from a moving car .Rajah 2 menunjukkan corak minyak menitis pada kadar seragam dari kerefa yang sedangbergerak.

Diagram 21aiah 2Direction of movem entArah gerukan

Wh ich of the following describes the m otion of the car?An fara yang berikuf, yang rnanakah menghlrraikan gerakan kereta fersebut?A Acceleration followed by constant velocity

Pecutan diikuri dengan halaju seragamB Deceleration followed by constant velocityNyahpecutan diikuti dengan halaju seragamC Constant velocity followed by acceleration

Halaju seragam diikuti dengan pecutanD Constant velocity followed by deceleration

Huluju seragarn diikzrri dengan tlyuhpecutan

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SULIT 65 Diagram 3 is a displacement-time graph showing the motion of a toy car.

Rajah 3 ialah graf sesaran-masayang menunjukkan pergerakan sebuah keretamainan.

Displacement 1mSesaran / m

TimeIMara / s

Diagram 3Rajah 3

Which of the following parts of the graph shows that the toy car is stationary?Anrara bahagian graf berikut, yang manakah menunjukkan kereta mainan itupegun?

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SULIT

6 Diagram 4 show s a heavy steam roller.Krljmh 4 rnenlrnjirkktrn sebzctrh [r ek lo rp en gel ek .slinr yang be ra t.

I t is difficult to change the direction of this vehicle.Arialah srrknr unluk rnenukur ara h ken dera an ini.This s tateme nt is refers tof'ernyataan ini udaluh nlerujuk kepaduA the con cept of inertia

konsep inersirrB the conce pt of balanced forces

konsep kese imbangan day aC the principle o f conservation of energy

prinsip keabaciian renagclD the principle of conservation of mom entum

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SULIT 87 Diagram 5 shows a boy pulling a box.

Rajah 5 menurijukkan seorang budak sedang menarik sebuah korak.

Diagram 5Rujah 5Calc ulate the acceleration of the box.Hitungkun pecutan kotak itu.A 5 . O O r n ~ - ~ R 6.67 m s"C 1 1 . 6 7 m ~ - ~ D 13.33 m s"

8 Diagram 6 show s a ball with a mass of 1500 g moving at a speed of 4 m s -bein g kicked by a football player. Th e ball rebounds at a speed of 5 m s - ' . Thetime of contact of the ball with the player is 0.05s.Rajah 6menunjukkan seb gi b ola beriisim 500 g sedang bergerak dengan kelajuan4 m s - di sepak oleh pem ain bola. Bola itu melantun dengan kelajuan 5 m s - '.Ma sa sentuhan bola dengan peniain itu ialah 0.05s .

What is the impulsive force on the ball7Berapukah duym impuls yung b er ti d ak Re ar m bola?A 3 0 NB 1 2 0 NC 1 5 0 ND 2 7 0 N

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SULIT 9

9 Why must the safety belts of a car be broad and able to lengthen slightly'?Kenapa lal ipinggan gan krselama~ an ehuah kerera n ~e st iebar dun bolehdiperpanjangkun sediki~?A T o decrease pressure and increase impact time

Unflrk mengur(rrrgkcm fekanan dun menam bahkun tnasa he nfm n~ a~ rB 'To increase pressure and decrease impact time

(Jnfukrn en am bo hh n rekanan dun m engurangka n mastr henranranC '1'0 decrease pressure and impact time

D 'To increase pressure and impact time

10 Diagarn 7 shows an aeroplane flying horizontally with increasing velocity.Ra j~ i h menunjukkan sebuah h p u l ~erban g e r i ~ ~ n gerbung secara tnet~tifrffrrrlengrm halrrjzr yang ber~nmbah

Lif tTujuIr ke UIU.Yt

Thrust DragTujnh ke deprrn Rirrlangmr~ rdarlr- __I+Thrust ITujnh ke deprrn Rirrlangmr~ rdarlr-

1WeightBeraf

Which of the following statement is correct?Anfaraper nyu farln berikur, yang tntlnuknh berul:?A Weight > Lift

Berar > Tuioh ke U[(I.FB L i f t > WeightTzijah > BernrC Drag =Thrust

D Thrust > Drag

Diagram 7R ~ l j u l ~

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SULIT- 1011 Diagram 8 shows a box being dropped from a helicopter.Rajah 8 rnenunjukkun sebuah korak dijatuhkan dari sebuah he licopter.

Diagram 8Rajah 8

Which of the following quantities remains unchanged during the fall?Antara kuan~iti erikut, yang mana ridak berubah semasa dijaruhkan?A Potential energy of the box

Tenaga keupayaan kotak.B Velocity of the box

Halaju korakC Acceleration of the box

Pecutan kotakD Displacement of the box

Sesaran kotak

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SULIT 11

12 Diagram 9 shows a graph of force, F, against the extension, x , forsprings R and S.Rajah 9 men i~njukkan raf daya F , melawanpemanjangan, x , untukspring R dun S.

R

Diagram 9Rajah 9

What is the conclusion derived from the graph?Apakah Resimpulan yang diperolehi daripada graf itu?A Spring R is longer

Spring R lebih panjangB Th e wire of the coils of spring R is thicker

Wayar gegelung spring R lebih tebalC Both spring are made of the same material

Kedua-dua spring diperbuat daripada bahan yang samaD Th e diam eter of the coils of spring R is bigger

Diam eter gegelung spring R lebih besar13 If the force is decrease while the surface area is kept constant, pressure exerted

willJ i h daya dikurangkan mana.hla luas permukaan d i k e h l h n , rekanan yangdikenakan akanA increases

bertambahB decreases

mengurangC remains constant

tidak berubah

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SULIT 12 4531/1

14 A manometer is being used to measure ttie pressure o t tllz gas I I I S I ~ C tai~l i .4, H ,C and D sho w the situation of the manom eter at different times.Sutu munorneter secii-mg drgunakan unruk merlgzikur trkanun gu.\ ci~rlrrnr c h o ' ~ / itungki. A, 8 ,C and D menunjukkan keuducm mnnotneter r t l i pncicl mrr\cr-nlrc\c:yrrng berluinun.At which time is the gas pressure inside the tank greatest')Pada mcutr b i l ahh lekannn gas dularn tangki puling besur?

15 Which of the following situations obe ys Pascal's pririciplc'?Aritrlrrz si(uasi berikwt, yc1n.g nrr~nukuh ~emcrtlrlii r in . r~~)'mcul?

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SULIT 1316 Diagram I 0 sho ws a man on a boat.

Rajah I0 tnenlinjztkkan seorang lelaki h l n m seblrah sampan.--

Diagrarrr 10Rajah 10

Which of the following statements is correct?A~~ta i~mpernyaraanerikut, y a tg manakah bcrul:)A We ight o f the water displaced = Weight of the m an + Weight of the boat

Berut a ir tersesar = Berut lelaki + Berai sampanB Weight o f the w ater displaced + Weight of the man = Weight o f the boat

Hertrr air tersesar + Berat lelc~k i- Berm sampanC W eight of waler displaced + Weight o f the boat = Weight of the man

Bet-ur riir tersesur + Berat sumnpuw = Berar IelukrL) Weight of the water displaced -Weight o f the boat - Weight o f the manBercrl air lersesur = Beroi sampa n - Brral lelaki

17 Diagram I I s l~ o w s stationary lorry and a moving lon y.Rajah 1 1 rncnunjukkun sebliah lo r; pegun don sebuah lor;yang sedang bergerak.

CanopyKanopi CanopyKar~opi

Diagram 1 1Rajah 1 1

W hich principle explain s the situation above?Prinrip yung n~crnuknhmener~~ngkr insilucui rfi alru.?A ArchimedesB BernoulliC Pascal

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18 Diagram 12 shows two m etal blocks touching each other.Rajah 12 menunjukkan dua blok logam menyentuh s atu sam a lain.

Diagram 12Rajah 12

Therm al equilibrium is reached when both of them have the sameKeseimbangan terma tercapai apab ila kedua-duanya samaA mass

jisimB density

kerumparanC volume

suhu

19 The specific heat capacity of aluminium is 1200 J k g - l o ~ "Muatan haba tentu bagi aluminium ialah 1200 J kg""c-'.Calculate the heat energy required to raise the temperature of 2 kg of aluminiumby 1OC?Hitung ten ag a haba yang diperlukan untuk menaikkan suhu 2 kg aluminiums e b a w a k 1 0C.A 1 200 J

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SULIT20 Diagram 13 show s a process in which water is changed to steam.

WaterFl StimDiagram 13Rajah 13

T h e heat absorb ed during the process is calledHaba yang diserap semma proses ini dikenali sebagaiA specific heat capacity

njuatnn haba tentuB latent heat of fusion

haba pendam pelakuranC latent heat o f vaporisation

haba pendam pengewapanD latent heat of condensation

haba pendam kondensasi21 Diagram 14 show s the condition of the air bubbles releases by a diver.

. - - ? '. 0Diagram 14

Rajah 14

T he abo ve situation can be explained bySituasi di atas dapat diterangkan olehA pressure law

hukum tekiznanB Boyle's law

huhrm BoyleC Charles's law

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SULIT 16

22 Diagram 15 shows the path of light from P to 0 .Rajah I 5 menunjukkan lintusan cuhc ya dari P ke 0.

con vex ' mirrorCermin cembung

Diagram 15Rajah 1 5Which is the correct reflected ray from the convex mirror?Sinar pantlrlan yang manakah betul dari oermin ce n~ bu ng tu?

23 Diagram 16 shows an observer looking at a fish swimming in a pond.Rajah 16 menunjukkun seorrrng pemerhati sedan g melihal seekor ikon berenungdalam sebuuh kolam. observer's eye4 mala pemerhalii1 5 cm

Diagram 16Rajah 16

4Th e refractive index of the water is - What is the distance between the observer3and the image of the fish?

4Indek biasan air ialah - Berapakuh jarak antar apem erhu li dengan imej ikan3itu?C 3 7 c m D 41c m

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SULIT 1724 Diagram 17 shows a fibre optic.

Rajah 17 rn en u n ju h n saru gentian optik.outer cladding

Diagram 17Rajah 17Which of the following statements is correct?Antara pernyataan berikut, yang manakah betul?A Refractive index of outer cladding = Refractive index of inner core

Indeks biasan lapisan luar = Indeks biasan (eras dalamB Refractive index of outer cladding > Refractive index of inner coreIndeks biasan lapisan luar > Indeks biasan te rm &lam

C Refractive index of outer cladding

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26 Diagram 18 shows a graph of wave motion.Rajah 18 menunjnkkan satu grafperam batan gelombang.

displacementsesaran

Diagram 18Rajah 18Which quantities are shown by distances P and Q?Apakah kuantiti yang ditunjukkan oleh arak P dun Q ?

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A

B

C

D

SULIT

Pamplitudeamplitudamplitudeamplitud

wavelengthjarak gelombang

wavelengthjarak gelombang

Qperiodtempoh

wavelengthjarak gelombang

periodtempo h

frequencyfrekuensi

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SULIT I9 453111

27 Diagram 19 sho ws a sound wave reflected from a barrier. Comp are with theincident wave, the reflected wave h asRajah 19 mrnun jukka n suru grlombang bunyi dipantulkan daripada sarupengha lang. Berbanding dengan gelombang fuju, gelombang rerpanrulmempunyai

Diagram 19* Rajah 19A a sm aller velocity B the same frequency

htrluju yang lebih kecil frekuensi yang samaC a bigger amplitude D a shorter wav elength

amp litud yang Iebih besar jarak gelombang yang lebih pendek

28 Diagram 20 show s a water wave in a ripple tank.Rr$ah 20 men~rnjukkan~ralli elambang air dalanr tangki riak. Diagram 20Rqal i 20Th e wave has a speed of 24 cm s-' at R.T he w ave crosses a boundary PQ where the distance between the crests cha nge sfrom 3.0 cm to1.5 cm.Gelom bang iru mempunyai halaju 24 cm s-'c/i R.Ge lom ban g ilu rnelepcisi sempadan PQ di mana arak anrara punoak-puncakberubah duri 3.0 cm ke 1.5 cm.Wh at is the frequency of the wave at point S?Berapakahj-ekuensi gelombang i t u p o h ririk S ? 453 1/10 2M8 Hak Ciptn JPNJ [Lihat sebelahSULIT Jo or Tria SPM 2008http://edu.joshuatly.com/ http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 18/86 SULIT 20 4531/129 Diagram 21 s ho ws radio wav es being received at a house at the bottom o f a hill. Raja h 21 menunjukkan gelombang radio sedang diterinra oleh sehuah rumah dikaki hukit.- A A 7 House-umahI . - .HillsBuki~ Radio stationSiesen Radio This phenomenon is due toFenontena ini disebabkan olehA reflection pantulanC diffraction pembelauan Diagram 2 1Rujah 21 B refractionpen1 biasan D interferenceinterferer 30 Diagram 22 sho w s the interference pattern o f water waves from tw o coherentsources SI and S2 in a ripple tank.Rujah 22 menunjukkan corak interferen gelombang air dar i dua sum ber koherenS , dan S1dalant sebua h tangki riak.Which of the following points has minimum amplitude?Anta ra titik-titik berikut, yang manakah mempunyai am plitud n~inintum? Diagram 22Rajuh 22 453111 0 2008 Hak Cipu JPNJ SULITJo or Trial SPM 2008 http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 19/86 SULIT 21 4531113 1 Diagram 23 show s a climber starting a stopwatch as he shouts. An echo is heardafter 1.5 s. Veloc.ity of sound is 340 m s-'. Raja11 2 3 rnenunjukkan seoran g pendaki memulakan a m randik sambil tnenjerir.G em a terdengar selepas 1.5 s. Halaju bzrnyi ialah 340 rn s". Diagram 23Rajah 23 What is the width of the valley'?Berapak ah lebar gaung itu P 32 Which of the following diagrams show the electric field correctly?Antara raj ah berikur, yang manakah menunjukkan dengan betul m edan elek trikitu? 4531/10 2008 Ilnk Cipta JPNJ [Lihat sebelahSLTLITJohor Trial SPM 2008 http://edu.joshuatly.com/http://www joshuatly com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 20/86 SULIT 22 45311133 Diagram 24 shows a constantan sheet.In which d irection should the current flows, when the resistance o f the sheet is thesmallest? Rajah 24 menunjukkan saru kepingan konsranran.Dalam arah manakah, a m s hams mengalir apabila rintangan kepingan iru adalahpaling rendah? B Diagram 24Rajah 24 34 Diagram 25 sh ows an electric circuit.Rajah 25 menu njukhn saru lirar elekrrik e.m.f I .g.e =3.0 Vinternal resistance 1rintangan daiamr = 2 R Diagram 25Rajah 2 5What is the reading of the voltmeter when the switch is opened?Apakah bacaan voltmeter bila suis dibuka?A zeroB 3.OVC less than 3.0 VD m o r e t h a n 3 . 0 V 4531110 008 Hak Cipta JPNJ SULITJo or Trial SPM 2008 http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 21/86 SULIT 23 35 Four bulbs are labelled '8 0 W 240 V'.Empat mentol dilabelkan '80 W 240 V'In which circuit are all the bulbs lighted at normal brightness7Dalam litar rnanakah. .semua mentol dinyalakan pada kecerahan normal? 4531110 2008 ilak Cipta JPNJ [Lihat sebelahSULITJo or Trial SPM 2008http://edu.joshuatly.com http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 22/86 36 Whic h o f the followin g electrical appliances consumed the most energy?Antcrra alatan el eh rik berikut yang manakah menggunakan paling hanyak trnagu')A B Kettle240 V 600 W15 minute sCerek240Y 60 0 W240 V 300 W OvenFan 240 V 1500W240 V 200 W 20 minutes3 hours KerzrharKipas 240 V 1500 W240 Y 200 W 2 0 ntinit3 ja m 37 Diagram 26 shows a simple electromagnet .Rajah 26 menunjukkan saiu e leklron ~agn et ingkas.Sol? iron coreswitch Insulated wireD C supply, / v y a r berlehat Diagram 26Rajah 26v Wha t chan ges should be done to increase the strength of the electromagnet'?Apakah perubahan yangper lir dilakukun untuk rneningkatkan kekzralanelektromagnet ?A remo ve th e soft iron core keluarkan te rm besi lembutB decrea se the number of coils C increas e the number of battery D decrease the diameter o f the wirekurangkan diameter wa yar 453111 0 2008 HakCipta JPNJ Jo or Trial SPM 2008http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 23/86 SULIT 25 45311138 Diagram 27 shows a wire suspended between the poles of two magnets. Rajah 27 menunjuRRan satu wayar yang tergantung antara kutub-kutub duamagnet. A.C power supply2 / bekalan arus ulang alik Diagram 27Rajah 27Which direction will the wire move?Ke arah manaRah wayar itu akan bergerak?A up only atas sahajaB right only Ranan sahajaC up and down atas dun bawahD left and right kiri dan kanan 4531110 2008 Hak Cipra JYNJ [Llbat sebelabSULITJo or Trial SPM 2008 http://edu.joshuatly.comhttp://www joshuatly com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 24/86 39 Diagram 28 shows an alternating e.m.f. produced by a simple a.c. genemtor.Rajah 28 m en u n ju h n d.g.e ulang alik yang dihasilkan oleh p ey an a a.u yangr i n g h .e.m..f 1Vd.g.eN rime Is0 masa /s-1 .o Diagram 28Rajah 28 The speed o f the generator is then doubled.Kelajuan penjana kemudian digandakan.Which o f the following graphs best represents the new output?Antara graf berikut, yang manakah paling sesuai mewakili oulput yang bum? 453111 0 2008 HakCipta JPNJ SULITJo or Trial SPM 2008 http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 25/86 SULIT time Ismusa 1s - 1 . time Ismasa Is -1.0 4531110 2008 Hak Cipta JPNJ [Lihat sebelahSULIT Jo or Trial SPM 2008http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 26/86 SULIT 28 45311140 Which of the following transfomiers will light up the 12 V bulb at its normalbrightness? . Antara trans&ormer berikur, yang manakuh akan menyalakan men101 12 V padakecerahan normal? 240 V 1600 turns 240V1600 turns 453111 0 2008 Hak Ciptn JPNJ SULITJo or Trial SPM 2008 http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 27/86 41 The advantage of an alternating current supply is thatKelebihan bekalan arus ulang alik ialahA alternating current is easier to generate arus ulang alik lebih mudah dijanaB the voltage of the alternating current can be changed easily volran arus ulang alik boleh diubah dengan mudahC the frequency of the alternating current can be changed easily t h e f i e h e m i arus ulang alik boleh diubah dengan mudahD the power o ft h e supply can be maintained at a constant value kuasa bekalan boleh dikekalkan pada satu nilai yang tetap42 Diagram 29 shows two identical bulbs X and Y which will light up with the samebrightness when the switch is turned off. Rajah 29 menunjukkan dua mentol serupa X dan Y yang akan bem yala dengankecerahan yang sama bila suis dimatikan. Diagram 29Rajah 29What will happen to the bulbs X and Y if the switch is on?Apa yang akan berlaku kepada menrol-mentolX dan Y jika suis itu dihidupkan?A no changes riada perubahanB X is brighter than Y X lebih rerang dari YC X is dimmer than Y X lebih malap dari Y 4531110 2008 Hak Cipta JPNJ [Lihat sebelahSULIT Johor Trial SPM 2008http://edu.joshuatly.com/ http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 28/86 SULIT-43 Diagram 30 shows an automatic switch circuit to light up a bulb at night.Rajah 30 menunjlrkRan lirar suis automatic urtluk menyalakan mertlol pada wakru Diagram 30Rajah 30The hnctions of R1 and Rq areFungsi RI un Rz ialah RLA to limit base current menghadkan a m apakB as a voltage divider sebagai pembahagi voltanC as a voltage divider se bagai pembahagi voltanD to limit base current menghadkan arus tapak ISzto limit collector currentmenghadkan arur pengumpulto limit base currentmeng-n arus tapakto limit collector currentmenghadkan arus pengumpulas a voltage dividersebagai pembahagi voltan 453 1 1 0 008 Hak Cipta JPNJ SULITJo or Trial SPM 2008 http://edu.joshuatly.com/ http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 29/86 44 Th e truth table for. wo logic gates P and Q are as shown.Jadual kebenaran bagi dua get logic P dun Q adalah seperti dimnjukkan. Truth table of logic gates 1Jadual kebenaran get logikOut ut Out ut Ou tput of logic gate P is connected to the input of logic gate Q. This combinationform aOutput get logik P disambungkan Repada input get logik Q.Kombinasi inimenghasilkanA OR gate get ATAUB NOR gate get TAKATAUC AND gateget DAND NAND ate get TAKDAN 4531110 2008 Hak Cipta JPNJ [Lihat sebelahSULITJohor Trial SPM 2008 http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 30/86 SULIT- 3245 Diagram 3 1 shows a logic gate circuit with input signals X and Y.Rajah 3 1 menunjukkan satu litar get logik dengan signal input X dun Y .Diagram 3 1Rajah 3 1 Which output signal is produced by the logic circuit?Yang mana kah signal output yang dihasilkan oleh litar logik ini? 4531/1 0 008 Hak Cipta JPNJ SULITJo or Trial SPM 2008 http://edu.joshuatly.com/http://www.joshuatly.com • 7/27/2019 Physics Johor SPM Trial 2008 [Edu.joshuatly.com] 31/86 SULIT46 Atom P and Q are isotopes. Afonr P dun Q adalah isofop .Wh ich of the following comparison between atom P and atom Q is true?Anfaraperbandinganberikuf antara atom P dun atom Q, yang manakah benar:? ( Number of neut rons I Num ber o f electrons I Num ber of protons 1Bilangan neutron Bilangan electron Bilanga n proton A differentIsama I samaIdifferent different different Cberbeza sameberbeza differentI I berbeza I sama I .sama I berbezasame 47 Diagram 32 shows the radioactivity decay graph for a radioactive material.Rajah 32 menunjukkan grafpereputan rad ioa kfv ba gisafu bahan ra dioak~ij: D Radioactivity (cou nt rate I s)Keradioa ktifan (kadar kiraan / s)? Time I sMa s d s same~ a m a Diagram 32Rajah 32W hat is the half-life ;f the radioactive material? samesama Apaka h sepunrh hayat bahan radioaki$itu?

sameama 1

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48 Diagram 33 sh ow s a radioactive source in front of a Geiger-Muller tube. Withoutany ab sorber the average count rate is 742 countsJminute.Rajah 33 menunjukkan satu sumber ra di oa kt fd i hadapan tiub Geiger-Muller.Tunpa penyera p kndar kiraan purara ialah 742 kiraanl m inir.

Geiger Muller tube~ i u b eiger Muller- /source^ absorber countersumber Penyerap pengira

Diagram 33Rajah 33Th en a bsor ber of different materials is placed between the source nnd the tube.T h e results are recorded in the table below.Kem udian penyerap daripada bahan yang berlainan dilefakkan di anrara surnberdengan tiub. Keputusannya di re hd ka n dalam jadual di bawah.

1 Bahan penyerop 1 /kad nipix 1 foil I 1 /plumbum 1Material of absorber1 kadar kiraanpuroru/bilonganper minir ( 740 1 450 1 103 1

thin card

average count rate / counts per minute

What type of radiation does the source emit?Apak ah jenis radiasi yang dipancarkan oleh sumber?A alpha and beta only

alfa dun bef a sahajcrB alpha and gamma only

alfa dun garna sahajaC beta and gam ma only

beta dun gama sahujaD alpha, beta and gamma

alfa, beta da n gama453111 0 2008 Hak Cipta JPNJ

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SULIT- 35 45311149 Which of the following nuclear reactions is an example of fusion?Anfara findakbalm nuklear berikuf,yang manahah confohperlakuran nuklear?50 In a nuclear reactor, the rate of the chain reaction is controlled by

Dalarn sebuah reahor nuklear, Radar tindakbala beranfai dikmval olehA uranium rodsrod-rod uraniumB boron rods

rod-rod boronC graphite co re

term graJtD concrete shield

KERTAS SOALAN T A M T

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NO KAD PENC ENALANANCK A GILIRAN

,JARArI'ANPELAJARAN NEGEHl JOHOH

PEPERIKSAAN PERCUBAANSIJIL PELAJAR AN MALAYSIA 2008Kertas 2September 20082 '9; am Dua jam tiga puluh minit

.JANGAN BUK A KEHTAS SOA1,AN IN1 SEHINGGA DIBERITA HU

I l ' l r i ~ \ k ~ ~ n~ornborkad peogenalan c/nna n g k a giliran rmr1(1 p(1(1(1 1run.y vangclr wclrukun

4. [ . ' ~ J I ( J Y ! ~fihenr~rkdt~ n~rnjcnvclhke.cei'urrriitrrl rriuri .sehnhngicm soalnn. V U I J I L J ,rdij (/r;1~11n(I~I(J .Y(It?ggcri.s I I L J I ~n'l/?tl~vtrM~' l ( l~ '1 l .

.- .- ..-Kerlas soalall ini merrgarrdurrgi 3 1 halarnan bercetak clan 1 lralanian ridak bercetak

[Lihat sebelahSULIT

- Kod PenieriksaBahagia~i

A

MarkatiI'enuti4567881012

Soalan12345678

MarkahDiperoleh

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SULIT 3Section ABahagian.4[60 marks][60markah]

A n ~ w e r ll question in this secrion.Jmvab semua so ah n dalatn hahagian ini.

1 Diagram 1 shows a displacement - time graph o f the oscillation of a loaded sp ring.Rajah 1 nlenunjukkan graf sesaran - masa hagi saru ayunan spring herheban.

Displacement 1crnStsaran 1 cm

Time I sMasa 1 s

Diagram IRajah 1

( a ) Base on Diagram 1 ,Berdusarkan Rajah, 1(i) Label the period using the symbol 7'.

Labelkan rempoh nrenggunakart simbol T .

(ii) Wh at is the period of the oscillation?Bera yakah tenlpoll hagi satu ayunan?

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SLSLIT 4(6) What is meant by amplitude?

Apnkuh yang d im a h d k a n dengan amplitudl.....................................................................................................

[ 1 mark1[ I markuh](c) If the spring is undergoing damping, what will happen to the amplitude of theoscillation?

J i h spring itu mengalami pe lembcpn , apakuh yang a h erlaku kepaduumplitudnya?

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SULIT 52 Diagmm 2.1 shows a driver that is driving under a hot sun, sees a pool of water

appea ring on the road ahea d, but the pool of water disappears as the ca r approach es it.Rajah 2.1 menunjukkan seorang pemandu yang sedang memandu pada hari yang punasternampak tompokun air di hadapan, telapi tompokan uir ilu hilang apabila l~emundu lumenghampirinya.

............................................................................................................Image of the cloudaeen" as a pool of waterImej rnvan kelihatanseperti tompokun air

Diagram 2.1Rajah 2.1

( a ) Na me this natural phenomenon as observed by the driver.Nama kan fenumena semula jadi ini.....................................................................................................

[ I mark][ l markah]( b ) State the physics concept that is involved in this phenomenon.

Nyalakan ko nse pjz ik yang ~e rlib af alam fenomena ini.....................................................................................................

[ l mark][ l markah]

( c ) (i) How is the density o f the cool air compare to the density of the warm air?Ba nd ing km ketumpafan udara sejuk dengan udara suam.............................................................................................[ l mark]

[ l markuh](ii) When light rays propagates from a denser medium to a less dense medium,state what happen to the direction of the refracted rays.

Apabila cahaya merambal dari medium lebih turnpat ke medium kurangtunrpal, apakuh yang akun berlaku kepada arah perambalun gelombangcahaya yang ferbias.............................................................................................[ l mark]

[ l markah]

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SULIT 6(iii) Complete Diagram 2.2 to show the formation of the natural phenomenon asshown in Diagram 2.1.

Lenghphn Rajah 2 .2 bagi rnenunjukkan kejadian .semula ,jadi yongditunjukkan &lam Rajah 2.1.

Light from the cloudCuhaya dari awanLight to driver's eyesCahuya ke mata pernandu

Cool air

, ...",.." Udara panm/ / ~ o a d //Jalan

Image of the cloudseen as a pool or .laterImej w a n kelihatanseperti fompokan airDiagram 2.2

Rajah 2.2

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SIJ1,IT 73 Diagram 3.1 sho ws a cheetah ch asing a deer in a wild w orld. ( 3 i ~ c n hat thc niits.; ~ l n dvelocity o f the cheetah and the deer are 60 kg , 20 ni s v ' and 70 kg , 15 m s ~ 'espectively.Diagram 3.2 show s the cheetah successfully landed il's jaws on thc deer and b o ~ h f rhcmare movin g with a same velocity o f v m s" .Ktljirlr 3.1 tnenlin~rikkun eekor /~ t~r i t i i t~t iin~titigrri/tiiig nreiigt

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SULIT 8(4 ( i ) Name the Physics principle that is involved in the above hunting.Namakan pr im @ Fizik yang terlibat dalam pemburuan di arm.............................................................................................

[ l mark][ l markah]

(ii) Define the Physics principle that you mension in (d)(i).TaknjRan pr im @ Fizik yang anda nyatakan dalam (dXi).............................................................................................

mark1[ I markah]

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SULIT 94 Diagram 4.1 shows a SONAR waves is sent by transmitter at the lower part of the boat andthe echo es are detected by hydrophone.Diagram 4.2 sh ow s the trace on the screen of oscilloscope.

Rujuh 4.1 menunjukhn gelombang SONAR yang dihuntar melmlui transmitter ke cla.var /nutdun gem0 dikesan oleh hidrofon.Rajah 4.2 menu njukkan surihan gelombang yang dipaparkan oleh skrin osilo.skop

Diagram 4.1Rajah 4.1

Diagram 4.2Rajah 4.2

( a ) What is meant by wavelenght?A pa hl z yang dimaksudkan dengan panjang gelombang?.............................. . . . . . , , . . , . . . . . . . . . , . . . . . . , . . . . . . . . . , . . . . ' . . . . . . . . . . . . . . . . . . . . . 3 . . . . . . . . [ I mark][I m arkah]

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SULIT 10( b ) Sound waves with fiequency of 5.8 x 10' Hz are used to determine the depth ofthe sea. The speed of sound w aves in sea water is 1250 ms-I. The time-base o f theoscilloscope is adjusted at 50 ms cm-I. If the time interval between the transm ittingand receiving a pulse of waves is 1.2 s. Calculate

Gelombang bunyi ber /e ku en ~i .8 x 10' Hz digunakan untuk mene ntukankedalam an laut. Laju gelombang air ialah 1250 m i l . Dasar- masa bag iosiloskop dilaraskan pada 50 ms cm-I. Jika sela m asa di antara den yutangelom bang tuju dun gelombang yang diterima adalilh 1.2 s. Hitung

(i) the depth of the sea.kedalaman laut

[ 2 marks][2 markahj

(ii) the wavelength of the sound wave.panjang gelombang bagi gelombang bunyi

[2 marks][ 2 markahJ

(c ) Observe the Diagram 4.1 and 4.2.Pevhatikan Rajah 4.1 dun Rajah 4.2

( i ) Com pare the am plitude of the reflection waves.Bandingkan am plilude gelombang panlulan yang dihasilkan

........................................................................................[ 1 mark][ l markah](ii) Explain your answer in (c) (i )

.ielaskan jcnvapan anda d i (c)(i).......................................................................................

[ I mark][ 1 markah]

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S J I . , IT 1 15 Diagram 5.1 shows a load placed on an ice block.

Diagram 5.2 show s an ice block withot11 he load.Rtrjoh 5 .1 rncr7zrr?jukk~ln e b~ ln il e~ ok ko nli ufns hlok oic.Rqjali 5.2 ~?rerrllnjltkkn~rlok 0i.c tn np a hebun tli Lrr~c.vn>,tr

I.oadBebon ................................................Ice block ...............................................A i r hlok

(,u) What is mean1 by iiensily?

. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .. . . . .[ I mark]

[ I / I I ( I I . ~ L I ! I \( h ) f:splain \ \ h y [he ice block float in water.

J e l ~ n k u n cjngrr/,tr bl ok r1i.r teralpzrrlg rlultnn ~rir ..

) What a re the forces ac t i ~ ~ gn the ice block?/Iptrkrllr ~/crj~c~-tlrr~tr~1trgerlr~rtltrk t, rl~rrs lok err\'!

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SULIT 12(4 Base on Diagram 5.1 and Diagram 5.2,Berdusarhn Rajah 5.1 dan Rajah 5.2,

( i ) compare the volume of water displaced.handinghn isipadu air yung tersesar.

............................................................................................[I mark][I markah](ii) compare [he weight of water displaced.

handingkan berat air yung tersesar...........................................................................................[I mark][ I markah]

(iii) Co mp are the buoyant force.bandinghn daya ulangan.............................................................................................[ I mark][ I markah]

(iv) State the relationship between buoyant force and the weight of waterdisplaced.Nyatakan hubungarr dinntara dnya julangan dan berat air yang tersesar..............................................................................................[ I mark][ 1 markah]

( v ) Nam e the principle of physics involve.Nuniukan prinsipfizik yang terlibut

............................................................................................[ I mark][ I markah]

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SULIT 136 Diagram 6 shows a series of observation and record made by a student on a melting icecube that is put in a metal plate.

Rajah 6 mrn unjukk an satu siri pemerhaliun cian cataran yang dibuat o leh seoran g pelajarlentan gpele bura n seketul ais di dalam satu bekas logam.

The ice starts to melt All the ice has

Metal plateBrkas logam

Mass of ice = 20 gJisim ais = 20 gTemperature o f ice = 0CSuhu ais = OC

Tem peratu re of the metal plate = 20CSuhu bekus logum = 20C

Metal plateIce water

Cecair ais Water droplet

Mass of ice water = 20 gJisim cecair ais = 20 gTemperature of ice water = 0CSulilc cecair ais = OCTime = 60 sMasa = 60 sWater droplets form on the metal plateTitisan air terbentuk di b e km logam

I

Diagram 6Rajah 6( a ) Na me tw o sources where the ice cube obtained the heat to change into ice water

Numukun dua pzrnca di mana ketulun ais itrr menabput liabu untuk nlenlrkar menjud;cecair ais......................................................................................................

[2 marks][2 markah]( b ) State the change in physical state when the ice cube is melted into ice water.

Nyatnkun perubalian keada anJzik apubila ke ~ ul a n is itu rnelebrrr nrenjadi cecairais......................................................................................................

[ I mark][I markah]

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SULIT 14(c ) (i ) Nam e the physics quantity that is involved w hen ice cube cha nge to water atconstant temperature.

Nam akun kuantiti fizik yung terlibat upabila ais bertukur m enjad i air padasuhu tetap..........................................................................................

[ l mark][ I markah](ii) Why the temperature is remain constant when ice melts to water?

Mengapa suhu kekul tidak berubah apabila ais be rt uh r menjadi air?..........................................................................................

[ l mark][ l markuh]

(4 If the amount of heat absorbed by the ice cube is 6.72 x lo3 1, calculate the specificlatent heat o f fusion.J i h umlah haba yang diserap oleh kefulan ais itu ialah 6.72 x l o 3 1, hitung hubupendam te nfupelakuran.

[2 marks][2 markuh]

( e ) Why water drop lets are formed on the outer surface o f the metal plate?Mengapa titisan air terbenfuk dipermuk uan luar bek m logam itu?.....................................................................................................

[ l mark][ I murkuh]

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SULIT 157 Diagram 7.1 shows a semiconductor transistor.Rajah 7.1 men unjukkm sebuah transistor semikonduktor.

Diagram 7.1Rajah 7.1(a) (i ) Name the type of the transistor.

Namakan enis transistor itu.............................................................................................

[ I mark][ l markah](ii) Transistor has three terminals connected to the emitter, base and collector.Label the emitter, base and collector in Diagram 7.1

Transistor mempunyai tiga kakiyang disambungkan kepada pengeluar, lapakdun pengurnpul. Labelkan pengeluar, tapak dun pengumpul paah Rajah 7.1 .[l mark][ l markah]

(b) Diagram 7.2 shows a transistor circuit.Rajah 7.2 menunjukkm sebuah lilur lransistor,

3v

Potentiometer 3 V

ov

Diagram 7.2Rajah 7.2

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SULIT 16When the sliding contact X is at the 0 V end of the p~tent iom eter ,Apa bila sesentuh X berada padu 0 V di hujung potentiometer,( i ) is there any current flow through the base and emitter circuit?

adakah arus akan nlengalir melalui l i ~ a rapak dan pengeluar?

...........................................................................................[ I mark]

[ I markuh]( i i ) what happened to the transistor and the bulb? Tick in the box.

Transistor

On OffBuka Turup

Bulb l Mentol

On OffMenyala Padam[ l mark][ I markah]

(iii) If the sliding contact X were raised from 0 V end to the 3 V end of thepotentiometer, what happened t o the bulb? Explain your an swerJika sesellruh X ditambah daripada 0 V kepada 3 V dihujung po~ en ~i alm eer ,apaka h yang berlaku kepada mentol? Terangkan uwap an and a

..........................................................................................( 2 marks]

( 2 markuh]

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SULIT 17(c) Diagram 7.3 shows a transistor is used to light up during the day.

Rajah 7.3 menunjukkan tran sis fo r yang digunakan unruk menyalakan men101 padawakru siang.

Diagram 7.3Rajah 7.3( i ) Suggest a modification to light up the lamp at night.

...........................................................................................[ I mark][ I markah]

(ii) A student replaced lamp L with a lamp labelled 240 V 24 W in Diagram 7.3.The bulb is not light up.Seorang murid mengantikan mentol L deng an sebu ah mentol ya ng berlebal240 V,24 W pada Rajah 7.3. Didapari men101 ridak m enyal a

(a) Why the lamp is not light up?Mengapakah mentol tidak menyala?

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SULIT 18(b) An electrical component is connected to the output transistor so thatthe lamp is light up.Nam e the electrical component and state the func tions.Satu komponen elektrik disambung kepada oufp uf ransis for upayamentol ifuboleh menyala.Namakan komponen elektrik &n nyafakan ingsinya........................................,...........................................

[2 marks][2 markah]

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SULIT 198 Diagram 8 show s an electromagnet for a crane. I t is used to l i f t iron scrap in a factory.Rajah 8 menunjukkan sa fu elektromagnef untuk sebunh kren. l a d ig u n a k ~ n lrnflrkrnenprmpul keping an besi ferbuang dalam sebuah kilung.

Diagram 8Rajah 8Table 8 sho ws four cranes with their respective properties.Ja du al 8 m enunjukkun e mpa f enis kren dengan sifat musing-musing

r ~ y p e o f craneJ

I I(

Table 8 / Jaduul8( a ) What is meant by electromagnet'?

Apakuh yang dimaksudkan dengan elecfromagnef?

LM

.....................................................................................................[ I mark][ I markah]

( b ) Base on Table 8, state the suitable properties of the crane to lift iron scrap moreeffectively. Give reason for the suitability of the properties.

Number of turn--]urrent /A1 O2.03 O -4.0

Berdasark~rnJaclual 8 , nyafakan sfat-si fa f kren untuk mengumpril k e p in ~ u n esiferbuang d engan lebih berkesan . Beri sebub mengapa sf i f -s i f af fu sesuai.

Type of coreSoft-lron

Steel

(i) Current / A m s

SoR-lronSteel

Reason / sebab

14

...........................................................................................[2marks][2 markah]

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SULIT 20(ii) Type of core 1 e n i . ~erns

...........................................................................................Reason / sebab...........................................................................................

[ 2 marks][ 2 m a r h h ](iii) Number o f turns 1 Bilangan lilitan geglung

...........................................................................................Reason / sebab...........................................................................................

[2 marks][2 rnarkuh]

(c ) Based on your answers in 8(b) ,determ ine the most suitable crane in Tab le 8 to liftiron scrap in a factory.Berdasarkarl j m a p a n di 8( b), entukan kren dalam Jaduai 8 yangprriing sesuaiuntuk ntengumpul kepingan besi terbuang dalam sebuah kilang.

4 Base on your choice i n 8(c ) ,state the change in the quantity of the iron scrap that canbe lifed when the cylindrical soft iron core is replaced with a U-shaped iron core.Explain your answerBerdasarkan pilihan anda dalam 8(c), nyatakan perubahan kuuntiti kepingan besiterbua ng yang boleh diangkat jika term besi lembrrt berbentuk silinder digantikandeng an teras besi berbentuk U. Terangkan awapan anda

....................................................................................................[2 marks)[ 2 markah]

(e ) A crane P is used to lift 250 kg of iron scrap to a height of 4m in 5 s. Determine theoutput power of the crane P.Sebuuh kren P dapat ntenaikkon 250 kg kepingan besi terbuang seringgi 4 m dalumntnsa 5 s. Kiru kuasa output kren P itti.

[2 marks][2 markah]

SULIT

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SULIT 2 1Section BBahagianB[20 marks][20 rnarkoh]

Anrwer any one questio nfiom this section.Jawab mana-mana satu soalan daripada bahagian in;.9 ( a ) Diagram 9.1 and Diagram 9.2 show a transparent block made of a material with adifferent refractive index. A light ray travel in both blocks with the same incidentangle, i.

Rajah 9.1 dun Rajah 9.2 tnenunjukkan blok lutsinar yang diperbuat daripada bahanyang mempunyai indekr biasan yang berbeza. Sinar cahaya melalui kedua-dua blokpnda sudut tuju yang sa ma, i.

Diagram 9.1Rajah 9.1 Diagram 9.2Rajah 9.2

(i) What is meant by a refractive index? [l mark] .Apakoh yang dim ab ud kan dengan indek biasan. [ I markoh]

(ii) Using Diagram 9.1 and Diagram 9.2, compare the refractive index, refractionangle and critical angle between the two blocks.Base on Diagram 9.1 and Diagram 9.2, relate the refractive index with criticalangle. [5 marks]Menggunakon Rajah 9.1 dun Rajah 9.2, bandingkan indeb biasan, sudutbiasan dun sudut genting antara kedua-dua blok.Merujuk kepada Rajah 9.1 dun Rajah 9.2, hubungkaitkan antara indekr biasandu n sudut genting [5 markah]

( b ) (i ) State two conditions under which light ray would undergo total internalreflection. [2 marks]Ayatakan 2 syarat sinar cahay a boleh mengala mipan tulan dalnnr penuh.[2 markah]

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SULlT 23( i ) refractive index of the inner and outer glass

in d eh biasan bagi kuca dibahagian dalam dan luar.(i i) the properties of material used for optical fibre

sifat bahan yang diguMkan untuk ge ai an optik(iii) the thickness of the glass

k t e ba l an kaca[lo marks]

[ I 0 markah]

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SUL11' : 410 Diagram 1 0 . 1 acd Llisgrain ICl.7 .>iii.w~ h c~:lb: C O I I ~ I ~ . : ; ~ ~ ~ ! !Ir ~ h c i ; i ~ .:c?i.eb. Thc htilbsand tile battery in both tht. store :ire identicnl.

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SLILJT 2 5( a ) (i) What is meant by a potential dif'ferent? [I mar k]

A p a h h y ang d i m ub ud hn dengan beza k upay aan? [ I murkah](ii) D ra w a c i r c ~ ~ i tiagram for each circuit and label the rype o f circu it. [4 marks]

Lu kis l i ta r bagi setiap diagra m da n lnbelkan enis l i ta r tersebur.[ 4 markah]

( h ) Using Diagram 10.1 and 10.2, comp are the brightness o f the bulbs. Relate thebrightness of the bulb, the potential dif'ferent and the current flow for the bulbs todeduce a relevant physics concept.

[ 5 marks]Menggunrrkan Rajah 10.1 dun 10.2, bandingkan kecerahan mentol-mentol.Hubu ngkai lkun kecerahan mentol, beza keupayaan dun a m ang mengrrl ir melalu imentol unruk ~len yimp ulkan atu ko nse pjz ik yang relevan.

[ 5 markah](c) Diagram 10.3 shows an electric kettle which is a rated at 24 0 V, 2 000 W andcon nect ed by a flexible cabl e to a three-pin-plug.

Rajah 10.3 menunjukkan sebuah cerek elektrik berlabel 240 V , 2 000 W r h ndi.scrmhungkan ole h kabel mudah a lih ke plug- tiga -p in.

Electric kettleCerek elektrik

Flexible cableKabel mridah al ih

Diagram 10.3Rajah 10.3

Heating elementElemell pemanas

Sug ges t modifications that can be made to the electric kettle in Diag ram 10.3 so that itcan boil water faster and has better safety. [ l o marks]C a d a n g h n pengubahsuaian yang boleh d i la ku h n pada cerek elektr ik &lam Rajah10.3 supuyu clapat mendidihkan a ir dengan lebih cepat dun lebih selamat.[ 10 markah]

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SULIT 26Section CBahagianC[20 marks][20 tnmrkah]

Answer any one quesrionfrorn this section.Jcnvab rnunu-manu satu .~o al un uriparfa buhagian ini.1 1 ( a ) Whpt is meant by tempe rature? [ I mark]

Apukuh yung ~ Iiniuk~ udku nengun suhu'? [ tnarkulr]( h ) Explain how a new thermometer can be calibrated. [4 marks]

Terungkun bagaitnarra jang ka.~u hubaru boleh disenggatkan. 14 mclrhh]

FinsSirip

Diagram I I . IRajah 1 1 . 1

Diagram I 1.1 sho ws a cooling system o f a motorcycle engine.You a s a mechanical engineer is given a task to study characteristics of metal shownin the Table 11.2 lo be used as etfective fins in the cooling system of the motorcycleengine.Rajah I 1 . m e n u n j ~ r k h nisrern penyejukurr ergin rnotosikal.A d a sebugai juruteru mekanikal diberi rugasan untuk tnengkaji ciri-c iri logarn yungditunjukkan dalam Jadual 11.2 untuk d ig m ak an sebagai sir* enjin niotosikal yarrgefekt i

'I'ypes of Spe cific heatmetal capacityJ ~~ " " c - 'logurn Muatan habu tent147 ~ ~ - ' O C ? '300- .- --.-360

--3 l lMelting point"C

Takut lebur"(2

1020

, Moderate ,Baik I Se:rhana7001600720

Moderate HighSecferhrmu I YngsiGood oder rateSederhana

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SUL,IT 27( i ) State suitable characteristics o f metal that is used as fin s in the mo torcy cleengine.

,Yvutak~i t~~~s v s u n ia niri-ciri logrim yang sesuui cligunake~nebrigai .siripyeny ejuk clalam enjin mole sikal.( i i ) Dete rmin e the mo st suitable me tal that can be used as fins G iv e reasons foryou r choice.

E n lu k a n logan1 yang puling sesuai cjigunakan lrnfuk sirip p en ~ ~ ej u k.erikunsebab kepada pilihun anda.[ I 0 marks]

( I markah](4 ( i ) :\ piece o f t in in the engine of a motorcycle wi th a mass of 0 .5 k g made Srommetal R. If the temperature increased by 10C in one hour, how much of

energy be ing absorbed by the tin..Yekcping sirip pudu enjirl rnolosikul herjisirn 0.5 k g dibu af ciuriyuda logunl RJ i h ~uiru meningkaf sebanyak 1O'C dalam sa fu am , berapakcrh lenngri i u b urelezh tlrserap oleh sirip fersebul?

[ 3 marks][ 3 murkuh]

( i i ) If 10 fin s identical to the one i n (d)(i) are used i n the mo torcy cle engine, h owm uc h energy is lost by the engine in one hour?.Jjka terdapaf 10 keping sirip-sirip yung serupa seperti (d)(i)yuda enjinrnofosikol, berapakoh jurnlah fenag a yang hilang oleh engin itu cic~lam ejurn

[ 2 marks][2 rnnrkali]

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Sl 11 ,l'T ?812 I)iagra~n 12.1 shows t l ic Dcad Sea Scrolls aged I000 years oid. All ; i ~ c I ~ a c i l l ~ ) g i s rsctlradioisotope [I, cs~imat i .agc o i t h e anciont artefact.

( ( I ) ( i ) W h a t is meant b y radioisotope'? ( I N I O I . ~ ]

( , i i ) ( ' ; r r h o ~ i - I is u radioiso~t)pc. 'splai i~\ (I \ \ . C'arl:o11.i4 :A [ : hi' ~ ~ x c ~ l(1 i . s ~ i~~ i : i t~ h c .lgc o i a cioad plant \v!licll conlain carbon. 1 ?, / , jai l k. )

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SULIT 29( b ) ( i ) Table 12.2 shows the characteristics of the five radioisotopes. P, Q, R, and T,that can be used to detect the brain tumour.

Jadual 12.2 menunjukkan ciri-ciri lima radioisolop, P , Q , R , S dun T, yangholeh digunakan unluk mengesan ketumbuhan didalam orak.--j-- !-adioactive1 Half-life rlonisingRadioisotope 1r I 1 radiationERodioisotop Seporuh- Kuaso i Sinomn rudiouktif1 hoyot I pengionon II

8 daysQ 8 hari Alpha

6 hoursR 6 jam GammaRendah

5'27 years ModerateI S 5 '27 Sederhana BetaTable 12.2 / Jadual 12.2

As a medical officer, you are required to determine the most suitableradioisotope that could be used to inject into the blood of a patient to detect thelocation of a brain tumour. Study the characteristics of all five radioisotopesbased on the fbllowing aspects:Sebagai seorarlg pegawai yenrbalan, anda dinlinla urrrlrk mengencll yasriraclioisorop yang paling sevuai unluk clisunlik ke dalam darah pesakil hug;rnengesan kedtrdukan ketumbuhan di olak. Kaji ciri kelima-lirna radioisotopifzr herdasarkan asp ekvang herikul:- The Half-life

Separuh hayc~l- The ionasing power

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SU L l T 30Explain the suitability of the aspects.Justify your choice.Terangkan keseslroian aspek-mpek ituBeri sehah hagip ilihan nnda. [8 mnrkuh]

(ii) Kame the most suitable detector can be used to detect the radioactive radiationfrom the body of the patient.Give your reason. [3 murky]Nam akon alar pengesan yang paling sesuai lrntuk me ngesan sin aran radioaktQyan g dipancarkan dari badan pesukit.Berikan a lusur~ ia tm pemilihan ancia. 13 m a r h h ]

( c ) In a nuclear reactor, 3.5 x 10 4 g of Uranium is change into energy in 1.5 ms. Giventhat the velocity of light, c = 3 x 10' ms ' I .Di dalam reakfo r nukelar, 3.5 x 10 g Uraniunt relah bert~rk armenjadi tenagadaiam musa 1.5 ms. Diberi halaju cahuya, c = 3 x 10' ms -'.

CalculateHirung

(i) the total energy released.,jumlak lenaga ynng dibehaskan

( i i ) the power generated by this reaction.kuasa yang dijcrnakun hussil rinduk ba las ini.

END OF QUESTIO N PAPERKER TAS SOALAN TAMA T

[ 5 tnarks[ 5 marknh]

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SULIT 22(ii) Diagram 9.3 shows a light ray is inciderit on a piece of Crown Glass of criticalangle 42".Draw the light ray to show how a ray emerging from the Crown G lass

Rajah 9.3 menunjukkan sinar tuju pad a kaca Cr ow n yang mempunyai sudutgen t ing 42'.I .ukiskan sinar cahaya untuk menunjukkan bagciimana s i m r cahayumerambat b l u a r dar i kaca Crown.

Diagram 9.3Ra jah 9.3

(c) Diagram 9.4 sho ws the structure of an optical fibre used in telecommunications.Ra juh 9.4 menunjukkan struktur gent ian opt ik yang digunukan untuk perhubungan

Inner core Light rayBahagian c ia lam Sinar c a h q aqiagram 9.4 OuterahagianladdinguavRajah 9.4Optica l fibres are made o f fine strands of glass. Each single glass fibre (inner core) is

coated with a thin layer of another type of glass (outer cladding).You are required togive some suggestions in designing an optical fibre which can carry moreinformation.Explain your suggestions base on the following aspects:Gentian optic d@erbuat dari kaca. Setiap lapisan gentian kacn (bahagian dalam)di la pis dengan lapisan nipis kaca (bahagian luar). Anda d ik e h e r h k i mernberibebe rapa cadangan untuk mereka bentuk gentian kaca yan g boleh membmva banyakmaklumat.Terang kan cadangan anda berdasnrkan aspek-aspek berikut:

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SULIT453113FizikKertas 3September20081 % j a m

NO KAD PENGENALAN[II 1 11 1 --j-I-T~T-

JABAT AN PELAJARAN NEGERI JOHORPEPERIKSAAN PERCUBAANSIJIL PELAJARAN MALAYSIA 2008

PHYSICSKertas 3

Satu jam tign puluh m init

JANGA N RUKA K ERTA S SOALAN IN1 SEHINGGA DIRERITAHUI . Titlis nombar h r l pengenalan duna n g k ~ iliran and a pada ruang yangciisediakan.

3. Soalan di bahag ian a fu s rlcrlambahasa Inggeris. S oalan rii bahagianhcnvah yang sepa dan ricllam bah asc~Melayu.4. C'ulon riihenarkan menjmvahkeseluruhun uruu sebuhugion sualuns um u ad u d ula m b n h u nggerisatou buhasa Meluyu.5. C ' L J ~ O ~ikehendaki metnbucurnnkllrmaf di halanlctn 2 ntau 3.

Kertas soalan ini rnengandungi I2 haiaman bercetak

45321.3 : ' W.8 llak C I ~PNJ

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Jumlah

I

Bahagian

A

B

Markahl'enuh16

12

1212

Soalan12

I

2

MarkahDiperolehi

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SULIT

Section ABahagian A[28 marks][28 markah]

Answer al l que stions in this section. Suggested tinie to answer this section is 60 m inutesJawab semua soalan dalam bahagian ini. Masa yang dicadangkun untuk merljawab brrhu~ ionini ialah 60 minit.1 A student carries out an experiment to investigate the relationship between thesine of the ang le of incidence, i and the sine of the angle of refraction, r of a glassblock.Th e arrang eme nt of the apparatus for the experiment is shown in Diagrani 1.0

Seorang pelajar menjulankan eksperimen untuk meng kuji hubzrngat~ i atlturu .\it7 .sridurtuju, dun sin sudul hiasan,r bagi suatu blok h a .Susuna n alat radas eksperimen seperti yang dilunjukkan padu Rajah I 0

SitlprWt.3

GlassblockBomgkrh kacu

!NR s t h c t e d ray

SiMV biastanDIAGRAM 1.0 IRAJAH 1.0

A ray o f light is directed along the angle of incidence, i = 15"and forms the angleof refraction, r. The angle of refraction is measured by using a protractor. Th ecorrespo nding reading of r , is shown in Diagram 1.1 on page 5.Th e experiment is repeated by varying the angle of incidence, i , to 30, 45', 60'and 75'. The corresponding angles of refraction, r a r e also shown in Diagram 1.2, 1.3,1.4 and 1.5 on pages 5.Satu sinar c ahaya ditujzrkun ke bongkah kaca pudrr sudzit tuju, i = 15' dcin mt.mht,rrtitksudut biasan, r. Sudut biasan d iukur deng an tnen ggu nak at~ rotra k/or. Bocrinn .\lrrlutbiasan, r yang sepada n ditunjukkan pada Ru jah I . 1 pada halaman 5.Eksperim en ini diulangi dengan mengubah sudut tuju, i, kepuda 3@, 45", 60 " don 75".Baca an bag; sudul biasan, r yang sepadan dilunjukkan jugo pudu Krdnh 1.3, 1.3. 1.4 dutr1.5 pada halaman j.

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SULIT

D~agrarn 1Rajah 1 1

Diagram 1.3R@ah .3

Diagram 1.5Rajah 1 5

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(a) Fo r the experim ent described abov e, identify:Da ripad ape nera nga n eksperimen di alas, kenalpasri:( i ) The manipulated variablePem bulahubah rnanipulmi

..................................................................................... 1 mark]( i i ) T he respond ing variablePem bolehubah bergerukbulus

[ 1 mark]......................................................................................(iii) T he constant variablePembolehubah difefa pkn n[ 1 mark]....................................................................................

(b) Based on diagram 1.1, 1.2, 1.3, 1.4 and 1.5,determine the ang le of refraction, r, and siner , when angle of incidence, i is equal to 1So, 3 0 , 45' , 60" and 75".Berdasurkan Rajuh I. I, 1.2, .3, 1.4dun 1.5 renrukan nilai sudur yernhiasun,r dan sinr apabila sudur ruju,i ialah 154 30, 45", 0" un 754

Tabulate the values o f i, sine i , r andsine r in the space below.Jadualkan rlilai-nilai bagi i, sin i, r dun sin r pada ruangan di bawuh.

[6 marks](c) On the graph paper, plot a graph o f sine r against sine i.Di alas ke rfas gruj-plotkun &.sin r rnelawan sin i.

[ 5 marks](d ) Based on your graph, state the relationship between sin ra n d sine i.Berdusurkun graf anda, nyafakan perhub ungan di unruru sin r du n sin r....................................................................................................[ 1 mark](e ) State one precaution that should be taken to obtain the accurate result.Nyarukan safu langkah berjaga-jaga yang perlu diambil unruk mendupat kepurusanyang lebih itu....................................................................................................

[ 1 mark]

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2 A student carries out an experiment lo invest~gatehe relationship behveen theelectro motive force, E and internal resistance, r of a dry cell. The result of the1experiment is shown in the graph Resistance, K against inverse currcnt, -- as in1

Diagram 2.1 on page 9.Seora ng murid sedang menjalankim sa fu ekspc?rimrnutlrtrk mengktrji l ~ u b u t ~ g u r ~di un ~a ra aya gerak elektrik, E don rinfangun &am, r unfuk sebiji hafe ri kerir~ g.1Keputusan eb pe rim en di tu nj uk hn oleh graf Rinrangun, R meluwclt~ per aru.s, --Ipada rajah 2.1 di halaman 9.

(a) Based on the graph i n DiLig~am .1Berd asarh n graf pads rajah 2. I(i) What happen to K when 1 decrease'!Apakuh yang b erl~k lr epadu K apubiltr I hrrkurrrr~g

(ii) Determine the value of 1 when R = 5 C 1 . Show on (11c graph how y , ) udetermine value of I.Tenrukan nrlui I upabrlu R = 5fL 7bn1uRk~rt1ads gruj h~~~y (rivrt~nrlanda n~e nen~ ukanril~ri.

@)The resistance, R is given by Lhe forlnulaRir~ fanga n, dlberi olch runlus

Where E is electromotive force and r is internal resistance.Dimana E ialah duya geruk elekrrik dun r ialah rlnfur~ ga n~lrirtr1( i ) Calculale the gradient of graph K against - . Show on the graph horiIyou determine the gradient of graph.

Iliru,,gkm kecerunan graf bogi H rn~l'nrisi ' 1u ~ ! / u k k u r ~' ~ ( ! ~ iv ! /1hugaimanu anda nrt.rrer~lukatr ~c ei.ut~ atr!rgi.

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SULIT

IGraph of R against - Graf l? lawan !-I

' I ! ; I "1 : , II ' ' '+ - t i - . ! L . -+ - - +-r--; A *: I . j j I, , . ,

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SULIT

E(ii) By using the formula R = - rand the value obtained in b ( i ) .1Calculate the electromotive force, E.EDengan mengunakan rumus R = - r dun nilai kecerunan di b(i) .1Hitung daya gerak elekm'k, E .

E(iii) By using the formula R = - r and the intercept R-axis, find the valueIof internal resistance, r.

EDengan mengunakan rumus R = - r dun pinrasan pabi R, renrukunInilai rintangan dalam , r.[2 marks]

[2 markah](c) State one precaution that should be taken during this experiment.NyataAan satu langkuh berjaga-jagayang perlu diambil semasa ebperimenini dilakukun.

..........................................................................................[I marks][I markah]

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SULIT

Section BBahagian B

[12 marks][I2 markuh]Answer any one question.J w a b m anu-m ana salu soalan.

Th e time suggested to answer this section is 30 minutes.Masa yang dicadangkon u nfu k menjmvab bahagian ini ialah 30 minit.3 Diagram 3.1 show s a cake before being b ake d. Diagram 3.2 show cak e after being bakedRajah 3.1 m en un ju kh n sebiji kek yang belum dimasak. Rajah 3.2 menunjukkan kek selepasdimasak.

Ca ke before being baked Cake after being bakedKek sebelum dibakar Kek selepas dibukur

Diagram 3.1Rajah 3.1

Diagram 3.2h j a h 3 .2

Based on the information and observation above:Berdnsa rkan maklzrmaf dun pemerhatian di atas:(a ) State one suitable inference.

N ya fa ka n sat11 inferens yung sesuai. [ l mark](b) State one suitable hypothesis.N y a f a h n safu hipofesisyang sesuai.

[ l mark](c) With the use o f apparatus such as capillary tube with and other app arat us, describe anexp erim ent fram ework t o investigate the hypothesis stated in 3(b).Derrgan mengunakan alat radas seperti Tolok Bardon don lain-lain radas, ferangkan

sotu rangku kaksperimen un fuk me&iara( hipolesis yang anda nyatakun di 3(b)In your description, state clearly the following;Dtrlam penerangan antla sila nya la dengan je1a.y perkara-perkura beriklrt(i) Aim o f he experiment.Tujuan eksperimen.(ii) Va riabl es in the experimen t.Pembolehubah dalam eksperimen.

(iii) List o f apparatus and materials.Senara i radas dun bahan.(iv) Arrang emen t of the apparatus.Susunan rtrdns.Jo or Trial SPM 2008

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(v) Th e procedure of the experiment which include the method o f controlling themanipulated variable and the method o f measuring the responding variable.Pr os ed w eh pe ri m en rermasuk kaedah nzengrnval pemboleh ubahdimanipulclsikan dun kaed ah rnengukur pem bolehu bah bergern k bn1n.s(vi) T he w ay you would tabulate the data.

Cara anda akan menjadualkan data.(vii) T he way you would analyse the data.C ara artda a h engana1isi.s data .

4 Dia gram 4.1 sh ow s a cradel with a baby in it is oscillating vertically. Dia gram 4.2sh ow s ano ther identical cradel with a heavier baby in it is oscillating vertically. It isobserved that the cradel with a heavier mass baby oscillates at a higher frequenc y.

Diagram 4.1Rajah 4.1

Diagram 4.2Rajah 4.2

Based on the situation above,(a) State one suitable inference.Nyarakan satu inferens yang sesuai [ l ~ n a r k ](b) State one appropriate hyp othesis that could be investigated.Nyatakczn satu h@oresisyang sesuai dun boleh disiasat. [ I mark](c) With th e use o f apparatus such a s spring,slotted weight and oth ers apparatus.desc ribe an e xperiment to investigate the hypothesis stated in 4 (b)

Dengun menggunakan ra dm seperli spring, jisim berbeban dun ra d m lain,terang kan satu eksperimen untuk menyiasat hipotesis yang dinyarakan di 4 f i )In y ou r description, state clearly the following;Dalam penerangan anda jeiaskan perkara berikut;(i) Aim o f the experiment,Tujuan eksperimen,

453113 02W8 Hak Ctpm IPNJ

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( i i ) Variables in the experiment,Pemholehubah yang terlibat dalam eksperim en,( i i i ) List of appa ratus an d materials,

.Senarai radas dan bahan.(iv) Arrangement of the apparatus,Susunan radas.(v) Th e procedure o f the experiment, which includes the method of controllingthe manipulated variable and the method of measuring the respo ndingvariable,Procedur eksperimen termasuk kaedah mengawal pembolehubahdimasipulasi dan kaedah mengukur pembolehubah bergerak ba lm .

(vi) Th e way to tabulate the data,Ca ra untuk menjadualkan data,

(v) The way to analyse the data.Ca ra untuk menganalisis data.[ I 0 marks]

END OF QUESTION PAPERKERTAS S OALAN T A M T

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Answers for paper 1 Physics 2008

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S ~ I T531/2(PP)FizikKertas 2September2008

JABATAN PELAJARAN NEGERI. JOHORPEPERIKSAAN PERCUBAAN

SIJIL PELAJARAN MALAYSIA 2008FIZIKKertas 2

PERATURAN PEMARKAH AN

Kertas jawapan ini mengandungi 8 halaman bercetak .4531/2(PP)@~akipta JPNJ [Lihat sebelahSLTLIT

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SULIT 2 4531/2(PP)

(i)(ii)

(iii)

Total

111

(b)(c)

Mirage

(ii) 10.2sAm plitude of a wave is the maximum displacement of a mediumparticle fiom its mean (stationary) position.Decreases with time

Total internal reflectionDensity o f the cool air is greater than the density of thewarm airThe light rays will be refracted away from th e normal

TotalMomentumKinetic energy

Principle of Conservation of M omentum IIn the absence of external forces, the total momentum of a ~system remains unchangeTotal

4marks

5 marks1

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' SULIT 3 4531/2(PP)

[Lihat sebelahSULIT

II

4

5

I

6

122

1

17 marks1

'1-51

-" " 11111

Total 8 marks

(a )(b)

(c)

(a )(b)(c)(d)

(i )(ii)

(i )(ii)

The distance between two points of the same phase.d = 1250 x 0.6 = 750.0 mf = 5.8 x l o 5 H zv = 1250 ms-'X = 0.00215 m / 2.15 x 10" m

The amplitude of the reflection wave in Diagram 4.2 ishigher.When the depth increases, the energy lost inceases Total

11111

1Total 8 marks

Heat from the surroundingHeat from the metal plateSolid to liquidSpecific latent heat o f fusionHeat absorbed is used to overcom e the forces of attractionbetween the molecules of the ice

6'72x1O3 = 3.3(jxl 05 J kg-11 = 20x10-'kgCondensation of water vapour on coo l surface

(a )

(b)(c)

( 4

(e)

Mass per unit volumeDensity o f ice block is less than density of waterWeight and buoyant force

(i )(ii)

(i)(ii)(iii)(iv)(v)

The volume of water displaced in Diagram 5.1 is more thanin Diagram 5.2.The weight of water displaced in Diagram 5.1 is more thanin Diagram 5.2.Buoyant force in diagram 5.1 is greater diagram 5.2Buoyant force = weight o f water displacedArchimedes' Principle

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SULIT- 4 4531/2(PP)(a)(b )

(iii)On Off Light up Not light up ~Buka Tuiup Menyala Padam

Bulb does not light up.No current flows in the base and emitter circuit.(c)

1

1

1

1

0 )(i i)

(i )(i i)

(d )

I I produced by the flow of electric current.

n-p-n +Collector

Emitter

YesTransistor Bulb l Meniol

Interchange the position of LDR and R2

(a)

1

(i )(ii)

/(b)) ncrease the current.Th e strength of an electromagnet increases

Because collector current is too sm all

11

(ii)

1

,Magnetic relay / ~ e j ; ~witchUsing sm all voltage to sw itch on the second with highvoltageTotal

(iii)

4531/2(PP) SULIT

11

10marksAn electromagnet is a magnet in w hich a m agnetic field is

Soft-Iron coreEasily magnetised and demagnetised

(d)

1

11

Increase the number o f turns.The strength of an electromagnet increases

11

Increase // MoreThe po les for a U-shaped electromagnet are closer together 11Jo or Trial SPM 2008

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SULIT 5 4531/2(PP)

[Lihat sebelahSULIT

(el P'E.Xh_t= 2 5 0 x 1 0 x 45= 2000 W

Total

11

12 marks9 (a)

(b)

(c)

(i)(ii)

(i)

(i i)

1111211

2

SECTION BRatio sin of incidence angle and sine o f refraction angleRefractive index riigram9.2 larger than diagram 9.1Refraction angle diagram 9.2 is smaller than diagram 9.1Critical angle diagram 9.1 larger than diagram 9.2When the refractive index is large, the critical angle is small1. the angle of incidence is greater than critical angle2. the light travel from medium high density to low density

-I

22222

marks

Aspect1. An/ nner core of higherrefractive index2. Ou ter layer of medium with alower re h ct iv e index

3. Lower density4. The thickness of the glass isthin5. Strong and flexible

ReasonLight ray is reflected more easilythrough total internal reflectionLight ray is reflected more easilythrough total internal reflectionThe optical fibre will be lighterSave pace I can be used in narrowspaceDoes not break easily and theshape can be adjusted Total 20

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SULIT 6 4531/2(PP)

Series circuitDiagram

(a)

I

Parallel circuitDiagram10.2

1. Th e bulb in parallel circuit /I Diagram 10.2 is brighter than thosein series circuit // Diagram 10.12. T he potential difference ac ross each bulb in the parallel circuitis the sam e a s that o f the battery I/ dry cell.3. The potential d ifference ac ross each bulb in the series circuit

is smaller than that of the battery 11dry cell.4. Th e current flowing through each bulb in the parallel circuit ishigher than th e current flowing in the series circuit.5. Wh en the potential difference across each bu lb is higher, thecurrent flowing through it is also higher and the bulb is

(i)( i i)

Work done in moving on e coulomb o f charge from o ne point toanother

brighter.1 Suggestion1. Diam eter of wire used esfle\$ble cab le mu st be thicker

ExplanationSo that the resistance will bereduced. A thinner wire has ahigher resistance. If large curren tflows through it, it becomesoverheated and may bum and cause

2. Length of cable is shorter3. Heating element must made

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a fire.So that the resistance is smallerCan produce the higher heat energyof materialwith high resistivitysuch as nichrome4. The kettJe is made of goodheat insulator

5. Use a suitable fuse. Thecurrent flow through the cable is8.33 A. The su itable fuse isbetween 1 1 A to 13A

withsm all current. S O that waterwill boil fasterSo tha t the heat will not loose to thesurroundings and water will boilfaster. It is safer to handleIf there is a short-circuit, a veryhigh current flows and melt thefuse wire. The kettle will not bedamaged.

Total 2 0

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SECTION C1

1. Put the thermometer in inelting ice ,mark the lower part ofmercury thread,lo2. Place the same thermometer in the boiling water, mark the top partof the mercury thread, 1 1003 . Divide the length between the two marks inti 100 equal divisions4. Each division is now equal to 1 O CCharacteristics1 Specific heat capacity is low Reason2. Faster to get hot

1 3. Melting point is high

I I IThe most suitable is P because specific heat capacity is low, melting pointis high, conductor heat is good, rate of expansion is moderate

4. Does not melt easily5. Good conductor of heat7.Rate of expansion is moderate

6. The heat can be lost easily8. The shape of the fin unchange

3

2

( i )

(i i)

12

- after the plants dies, the activity of Carbon-14 will declinesince no new carbon-14 is absorbed.

Q=mceI =0.5x45OxlO= 2250 J

Energy lost = 10x 2250 = 22500 J +

(ii)

- by calculating the activity of carbon-14, the age of thefossil/object can be determined

(a)

[Lihat sebelahSULIT

- Carbon- 14 atom is a radioactive substance which is easilyabsorbed by living plants.(i)

1

Total 20 marksRadioisotopes are isotopes which have unstable nuclei. 1

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SULIT- 8 4531/2(PP)

(ii)

1 characteristics I e in a body for a short

Sustance R is the m ost suitable with short half-life, emitsgamma ray and has m oderate ionising power.

G eiger Muller Tube 1 1 1Has a small in size, it is handy and can be movedaround easily.It is a sensitive instrument, so can detect low I 1ionisationEnergy released E = mcL= 3.5 x x ( 3 x 10')~= 3.15 x lo7 J I

otal 20 marks

1

2IPower obtained P = E/t

= 3.15 x 1071.5 x 1o - ~

= 2.1 x 1ol0W

PERATURAN ERMARKAHAN TAMAT

1

1

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SULIT-53113(PP)FizikKertas 3September2008JABATAN PELAJARAN NEGERI:JOHORPEPERIKSAAN PERCUBAAN

SIJLL PELAJARAN MALAYSIA 2008

FIZIKKertas 3

PERATURAN PEMARKAHAN

-- - -Kertas soalan ini mengandungi 5 halaman bercetak .[Lihat sebelahSULIT

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SULIT

MARKNo.

I (a) (i)(i )(iii)

Incident angle,// i, I / sine iRefracted angle,// r, //sine rRefractive index

iP I rI0 ( Sine i / Sine r15

note: teacher must measure rand culclate sine i and sine r.Tabulate data1. Shows a table which have i, r, sine i and sine r2. State the correct unit for i and r.3. All values of r are correct4. Values of sin i are consistent to 3 decimal places.5. Values of sin r are consistent to 3 decimal places.Draw the graph of sin r against sin i1. The responding variable, sin r at y axis,

the manipulated variable, sine i at x axisStates the unit of the variable correctly2. Both axis with the even and uniform scale3. 5 points correctly plotted4. A smooth best fit straight line5. Miniqum size of the graph is 10 cm x 8 cm

Sine r is increase linearly to sine i

I No of ticksI 7

5,63,421

Put on the curtain to avoid excess light from outside.The position of the eyes must be perpendicular to the readingtaken to avoid ~arallaxrror.

Marks54321

TOTAL

Marks11

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1 . Shows the triangle: with ah acceptable size1minimum size 8 cm x 8 cm2. Substitute correctly=(7-0) I (6-1)3. States the value of gradient and its unit=1.4 V

2 (a) (i)(ii)Increase

1. Show the vertical line fiom R = 5R until touches thegraph, then horizontal line until it touches the 111 axis.2. 1A=4 .63. 1= 0.22A (w unit)

(ii)

SECTIONB

(iii)(c)

Rewrite R = E (111)- corresponding to y = mx + c11 gradient 1 m = E 1E = 1.4V1 . Extrapolation of the graf.2. r = 1.4R1. Do not let the circuit close for a long time to prevent fromincreasing the temperaturelresistance2. All the wire must be connect tightly to prevent current lost3. Use new battery to ensure maximum emf

TOTAL

111

I12

Marks3(a) I Inference : 1( b )

(c)(i)

The volume of the gas depends on the temperature which acts on it.Hypothesis:The larger the temperature, the larger is the volume of a fixed mass of gas. 1The volume of a varies directly with its temperature.Aim :To investigate the relationship between the temperature and volume

(ii)

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1

(iii)

for a fixed mass of gas at a constant pressure.Variables :Manipulated :Gas temperature, TResponding : Gas volurne, V1

1~ i x e d - Gas pressure,P or mass of gas, mApparatus : beaker, stirrer, heater, capillary tube, natrium hydroxide (con),11

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thermometer the ill^^^heater- 11 I I tube

(iv)

stirrer

Natrium

thermom eter, metre rule, water,Arrangement o f apparatus: +hydroxide

Procedure:1. Th e apparatus is set up as shown in the diagram above.2. Switch on the power supply s o that the heater will heat the water.3. Read thermometer when the temperature reach 30C.4. At the sam e time measure the length, l of air trapped inside thecapillary tube. (Tne volume o f air is comply to the length o ft h e airtrapped)5. Stir the w ater continuously, and repeat the experim ent when thetemperature reach 40C, 50C, 60C and 70 OC.

I TemperatureJ I "C / Temperature,T I K I Volume, V 1 cm' I

Volum e o f a fixed m ass of gas is directly proportional to its temperature.TOTAL 12

4(a)( b )

(ii) I Variables : Manipulated : massI

Inference :Period depend to the massHypothesis:(c)(i)

Th e increase of mass, the increase of periodAim :T o investigate the relationship between periodJo or Trial SPM 2008http://edu.joshuatly.com/http://www.joshuatly.com

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1 Responding : period IFixed : original length,spring constant

F i i ) 1 Apparatus : Spring, slotted weight,stop watch, retort stand, I 1Arrangement of apparatus:

Procedure:1. Th e apparatus is set up as shown in the diagram above.2. A 50 g slotted weight is attached to the lower end3. Th e spring is then set to vibrate vertically and the time for 10 com pletevibrations is measure by stop w atch4. Experiment is repeted with mass 1OOg, 150g,200g and 250 g

(vi)

(vii)

1Masslg50100150200

I 250I1 TJs1/g

TOTAL

Period Is

1

12