1. sains k1 soalan

8/13/2019 1. SAINS K1 SOALAN

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IN($R"ATI$N ($R &ANIATES

MAKLUMAT UNTUK CALON

1. This question paper consists of ! question.Kertas soalan ini mengandungi 50 soalan.

2. "nswer a))question.

Jawab semua soalan.

3. "nswer each question b# blackening the correct space on the objecti$e answer sheet.

Jawab dengan menghitamkan ruangan ang betul !ada kertas "awa!an ob"ekti#.

%. &lacken onl# *nespace for each question.

$itamkan satu ruangan saha"a bagi setia! "awa!an.

. 'f #ou wish to change #our answer( erase the blackened mark that #ou ha$e made. Then blacken

the space for the new answer.

%ekirana anda hendak menukar "awa!an& !adamkan tanda ang telah dibuat. Kemudian

hitamkan "awa!an ang baru.

). The diagrams in the question pro$ided are not drawn to scale unless stated.

'a"ah ang mengiringi soalan tidak dilukis mengikut skala ke(uali dinatakan.

*. +ou ma# use a non,programmable scientific calculator.

Anda dibenarkan menggunakan kalkulator sainti#ik ang tidak boleh de!rogram.

1511/2 +Lihat sebe)ah,


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1. -iagram 1 shows a t#pe of neurone.'a"ah ) menun"ukkan se"enis neuron.

-iagram 1 'a"ah )

hat is the function of this neurone/A!akah #ungsi neuron ini*

" Carries an impulse from receptor to central ner$ous s#stemMembawa im!uls dari rese!tor ke sistem sara# !usat

Carries an impulse from effectors to central ner$ous s#stemMembawa im!uls dari e#ektor ke sistem sara# !usat

Carries an impulse from central ner$ous s#stem to effectorsMembawa im!uls dari sistem sara# !usat ke e#ektor

Carries an impulse from central ner$ous s#stem to receptorMembawa im!uls dari sistem sara# !usat ke rese!tor

2. The following information shows the parts that are in$ol$ed when a student immediatel# jerksawa# his hand when it is pricked b# a sharp needle.

Maklumat berikut menun"ukkan bahagian ang terlibat a!abila seorang !ela"ar menentak tanganna dengan

segera a!abila terkena "arum ang ta"am.

hich of the following impulse pathwa#s is correct /Antara laluan im!uls ang berikut& ang manakah betul *

". 0 4

&. 4 0


0 , 5ffector

+#ektor

4 , 6eceptor 'ese!tor

, Sensor# neurone Neuron deria

, 0otor neurone Neuron motor

, 6ela# neurone

Neuron !erantaraan


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C. 4 0

-. 4 0

3. -iagram 2 shows a structure of human brain 'a"ah , menun"ukkan struktur otak manusia.

-iagram 2 'a"ah ,

hich part of the brain controls the peristalsis process/ Antara berikut& bahagian manakah ang mengawal !roses !eritalsis*

%. -iagram 3 shows endocrine glands.'a"ah - menun"ukkan kelen"ar endokrin.

-iagram 3 'a"ah -

hich of the following glands "(&( C and - secretes hormones when one is in danger/Manakah antara kelen"ar A& & C dan / merembeskan hormon a!abila seseorang dalam bahaa*

. -iagram 1! shows the different stages in cell di$ision in meiosis.


A

B&

A

B

&


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'a"ah )0 menun"ukkan !eringkat!eringkat dalam !embahagian sel se(ara meiosis.

hich stage shows crossing o$er process/1eringkat manakah menun"ukkan !roses !indah silang

). The gene for curl# hair 7C8 is dominant to the gene for straight hair 7c8. hich of the following

is the genot#pe of a person who has straight hair/2en bagi rambut kerinting3C4 adalah dominan ke!ada rambut lurus3(4. Manakah antara berikut adalah genoti!

bagi seseorang ang mem!unai rambut lurus*

" cc& Cc

C cC- CC

*. -iagram shows how a se9 of an offspring is determined in humans.'a"ah 5 menun"ukkan bagaimana !enentuan seks anak !ada manusia

-iagram 'a"ah 5



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:. hich of the following is caused b# gene mutation / Antara berikut& ang manakah disebabkan oleh mutasi gen *

" "lbinism Albino

& -own;s S#ndrome%indrom /own

C Turner;s S#ndrome %indrom Turner

- Klinefelter;s S#ndrome %indrom Kline#elter


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E)ement Nu-)e*n

number

Number *.

r*t*ns

Number *.

neutr*n

5 12 ) )

? 13 ) *

@ 1% * *A 1) : :

" 5 and ?

& ? and @

C @ and A

- 5 and A

11. The figure below shows the locations of elements ( ( 6 and S in the eriodic table.'a"ah di bawah menun"ukkan lokasi unsur 1& & ' and % dalam Jadual erkala.

hich two elements possess similar chemical properties//ua unsur manakah menun"ukkan si#at kimia ang sama*

" and

& and 6

C and S- 6 and S

12. -istillation can be used to separate1enulingan boleh digunakan utuk memisahkan

" water from the saltair dari!ada larutan garam


6


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& iron from the mi9ture of iron and sandbesi dari!ada (am!uran besi dan !asir

C salt from the mi9ture of sand and saltgaram dari!ada (am!uran !asir dan garam

- alcohol from the mi9ture of alcohol and wateralkohol dari!ada (am!uran alkohol dan air

13. The figure shows the arrangement of apparatus for electrol#sis molten lead 7''8 bromide

'a"ah menun"ukkan susunan radas untuk elektrolisis leburan !lumbum 3664 bromida.

hat could be obser$ed at the cathode/A!a ang akan di!erhatikan di katod*

" The cathode decreases in massJisim katod berkurang

& &rown $apour is gi$en off 7a! kelabu terhasil

C Colourless gas is gi$en off2as tidak berwarna terhasil

- " la#er of shin# sil$er solid is depositedLa!isan !e!e"al !erak berkilat termenda!

1%. The diagram shows an e9periment set up to purif# cooper sheet

'a"ah menun"ukkan susunan eks!erimen untuk menulenkan ke!ingan ku!rum


Switch

suis

Carbon electrodes

+lektrod karbon

-r# cells

%el kering

0olten lead 7''8bromide

Leburan !lumbum 3664 bromida

Beat

$aba

&atter#

ateri


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and +( and solution respecti$el#.A!akah ang diwakili oleh elektrod 8& 9 dan larutan :*

5lectrode > 5lectrode + Solution

'mpure cooperKu!rum tak tulen


Cooper 7''8 sulphateKu!rum 3664 sul#at


ure cooperKu!rum tulen







inc chloride:ink klorida

1. The diagram shows the apparatus used to stud# the reaction of calcium with water.

'a"ah menun"ukkan radas ang digunakan untuk mengka"i tindak balas kalsium dengan air.

?as >

" turns lime water cloud#mengeruhkan air ka!ur

& turns red litmus paper bluemenukarkan kertas litmus merah ke!ada biru

C will burn the glowing wooden splintermenalakan kau u"i berbara

- gi$es a Dpop; sound when tested with lighted wooden splintermenghasilkan buni ;!o!< a!abila diu"i dengan kau u"i menala


Switch

suis

Solution

Aarutan

"mmeter

> +

?as >

Calcium

Kalsium

Test tube

Tabung u"i

Eilter funnel

Corong turas


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1). -iagram 1shows the effect of an electrical charge on radioacti$e radiation.

'a"ah ) menun"ukkan kessan (as elektrik ke atas sinaran radioakti#.

hat is the t#pe of radiation shown abo$e/A!akah "enis sinaran ang ditun"ukkan di atas*

" "lpha ra#%inar al#a& ?amma ra#

%inar gama

C &eta ra#%inar beta

- >,ra#%inar8

1*. hich of the following is the effect of long,term e9posure to radioacti$e substances/

Manakah antara berikut meru!akan kesan "angka !an"ang "ika terdedah ke!ada bahan radioakti#*

" -iabetes& Stroke

C "lFhemer

- Cancer

1:. The figure shows a nuclear reaction

'a"ah menun"ukkan tindak balas nu(lear.


,

=

6eleased neutrons

1embebasan neutron

Aighter nucleusNu(leus ringan

Bea$# nucleusNu(leus berat

4eutron

Aighter nucleusNu(leus ringan


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4ame the t#pe of nuclear reaction that is taking place.Namakan "enis tindak balas nu(lear ang terlibat.

" Eission of h#drogen1embelahan hdrogen

& Eission of uranium1embelahan uranium

C Eission of lead1embelahan !lumbum- Eusion of h#drogen

1elakuran hdrogen

1


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hat is the distance between the lens and the word &'??56 so that the image formed will be as

abo$e diagram/

A!akah "arak antara kanta dengan !erkataan 622+'su!aa ime" terbentuk se!erti ra"ah diatas*

" Twice the focal length/ua kali "arak #o(us kanta

& Same as the focal length%ama dengan "arak #o(us kanta

C Aonger than the focal lengthLebih besar dari!ada "arak #o(us kanta

- Shorter than the focal lengthLebih !endek dari!ada "arak #o(us.

22. -iagram shows a pinhole camera

'a"ah menun"ukkan sebuah kamera lubang "arum.

object image

hat happens to the image if the distance of the object is decreased/A!akah ang berlaku !ada ime" "ika "arak ob"ek dikurangkan*

" &ecome smaller %emakin ke(il

& &ecome bigger %emakin besar

C 4othing happensTiada !erubahan

- GprightMenegak

23. 6ahmah wears a red blouse and green trousers walks under a red light. hat are the colours of

her blouse and trousers/

'ahmah memakai ba"u merah dan seluar hi"au ber"alan di bawah (ahaa merah. A!akah warna ba"u danseluarna.

B)*use%Baju ' Tr*users %Seluar'

" +ellowHKuning ?reenH$i"au

& 6edHMerah +ellowHKuning

C 6edHMerah &lackH$itam

- &lackH$itam 6edHMerah



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2%. The diagram shows the word equation of the Baber process. 'a"ah menun"ukkan !ersamaan !erkataan bagi !roses $aber.

'ron Catal#stHMangkin esi

Temperature H %uhu&%!IC

hat is the use of ammonia in indusrt#/A!akah kegunaan ammonia dalam industri

" To produce fertiliFer Membuat ba"a

& To produce sulphuric acidMembuat asid sul#urik

C To produce h#drochloric acidMembuat hidroklorik asid

- To produce chlorofluorocarbonMembuat kloro#lorokarbon

2. Chose the correct match between industrial wastes and the method of controlling them. 1ilih !adanan ang betul antara bahan sisa industri dengan (ara !engawalanna.

'ndustrial wastesH %isa industri 0ethods of controllingHCara !engawalan

il palm wastesH %isa minak sawit pen burningH1embakaran terbuka

To9ic wastesH%isa toksik Elow out to the ri$erHalirkan ke sungai

6adioacti$e wastesH%isa radioakti# 6ec#cleHKitar semula

Soot and dust=Jelaga dan /ebu 5lectrostatic precipitatorsH1emendak elektrostatik

2). 0icroorganism8 is found in the intestine of termites to secrete cellulase enF#me for digestion of

cellulose into glucose. hat is microorganism8/Mikrookganisma 8 di"um!ai dalam usus anaianai untuk merembeskan en>im selulase untuk men(ernakan selulosa

ke!ada glukosa. A!akah mikroorganisma 8*

" EungiHKulat

& JirusH?irus

C "lgaeHAlga

- rotoFoaH1roto>oa

2*. -iagram % shows the result of an e9periment to stud# the effect of temperature on bacterial

growth.'a"ah @ menun"ukkan ke!utusan suatu eks!erimen untuk mengka"i kesan suhu terhada! !ertumbuhan bakteria.


"mmoniaH

Ammonia

B#drogenH$idrogen

4itrogenHNitrogen

=


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iaram Rajah 4

hat is the optimum temperature for bacterial growth/A!akah suhu o!timum untuk !ertumbuhan bakteria*

" !C

& 2!CC 3*C

- %C

2:. -iagram < shows the changes of antibodies le$el in blood.'a"ah menun"ukkan !erubahan aras antibodi dalam darah.

-iagram

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