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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 KERTA 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

Kad Pem eriba

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Jumlah

I

Bahagian

A

B

Markahl'enuh16

12

1212

Soalan12

I

2

MarkahDiperolehi

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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 brr hu~ 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 un tuk mengkuji hubzrngat~ i atlturu .\it7 .sridurtuju, dun sin sudul hiasan,r bagi suatu blok h a .Susun an 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~ rotrak/o r. Bocrinn .\lrrlutbiasan, r yang sepad an ditunjukkan pada Ru jah I . 1 pada halaman 5.Ekspe rimen ini diulangi dengan mengubah sudut tuju, i, kepuda 3@, 45", 60 " don 75".Bacaan 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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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 ) Th e responding variablePem bolehubah bergerukbulus

[ 1 mark]......................................................................................(iii) Th e 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 of 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 and a nrt.rrer~lukatr ~c ei.ut~ atr!rgi.

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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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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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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 of apparatus such as capillary tube with and other apparatu s, 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.MOZ@C

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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 rim 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.

C prlngcradle springcradle

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 IPNJMOZ@C

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( i i ) Variables in the experiment,Pemholehubah yang terlibat dalam eksperimen,( 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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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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MARKNo.

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

iGSCHEME PHYSICS PAPER 3 (2008)Answer

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

NO I ANSWER

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)

SULIT

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 pow er supply so that the heater will heat the water.3. Read thermometer when the temperature reach 30C.4. At the same 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 periodMOZ@C

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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 watch4. Experiment is repeted with mass 1OOg, 150g,200g and 250 g

(vi)

(vii)

1Masslg50100150200

I 250I1 TJs1/g

TOTAL

Period Is

1

12

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