sains MG

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2

Section B

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[20 marlesJ

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Ansyter all qaestionset 6r, arryligt 8a eirafla 19 6 tO tb alla t u erfk* 6 62Ib

Diagram 1 shows an investigation . A pupil releases a toy car from X down aninclined plane to Y. The time taken for the toy car to travel is recorded. Thesteps are repeated with different heights ofthe inclined plane.ut-Lb 1,gi egrymi-ranoro onu$&anpg. 9(D ollcuremunr-$ o$iinr+cnd-rgeng$rco x ulggrujla5r(Dggl v-rii(s u(6grnqg6 scp efluuur_rgr_allcoenu:nuG' ornirn+ 6Gp or$g erouulrb GDryrir (50pgt er,oroauui_r_lt.$$gL_arqeroo6 entug6rrg$t6b ueirGargl e_uryggeb gL_gg r:rur_ L_g1.

fcy car

ollnnenu:m-G erredne

Height

e-uyrbinclined plane

enu..rpenrb

Diagram I

ul-rh r

Table I shows the result of the investigation.

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Table 1

g{LLOJ6f)66I|T1

Height of inclined plane ( cm)qnLrp6n3S$ein e_ruryrb (cm)

Time taken( second)

o$,pgltii Gtoneiiu, r__ Gsfrbtollannrar10 415 3

20 2

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{a)

3

What is the pqrpose ( aim) of the investigation?

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What is the conclusion from this investigation?

€ttbg 4grynu:anor errqiucrnlunsd Qenniur@ a@6auu@rb gEr$t

(!pl+ol ercwew?

(b) What is the trend of change in tfre time taken for the toy car to travel when the

height of the inclined plane increases?

enupen$$etn e-u:ry6 et$afl$gtb Gungt ollcrnenunr-$ eloinrq

uruaronb SeuuJ 6TG,Fgl Glsn6iiu'rL Cffbsrr ronpgrb oorrein r

(c) State

19flur5l$ei) What is claaged ( manipulated variable) in this investigation,

Spp Srynu:efieb og, rongpuuir_gl,( gpenryq rongff I r

ii) What is observed ( responding variable ) in this investigation.SBp 4rynu:ofteb cr$, sppgflruuur_ugt ( sniq rons I r

td)

Total BI

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Z. Diagram 2 shoq,s an investigation carried out by a pupil. A brick is placed on a piece of

glass. The number of bricks is increased until the glass break. The sleps are repeated on a

rvooden plank and a piece ofconcrete'

uLLb 2 e319 rolr66uloli GropClenciurL e3li e$qnurol?6o66lS enl-$'8trrpgl

€16 8srff66b 9(6 56iiuf66rTn4 5l8irn+5rT Groeb coor6suuG$51npgt

aaiu1euinn4 E-6ot- tr1 Lb ol5'ory Qen'roflaaflor aaimeudfl$eirrs

g}|$sflri;ouu$r6pg €rfpr-olg6eara l.8sidrGltb toryuua)6oa r-o;bELb

oneindrfl r- Groeb gl$guuQ&6nPgl

brick

Qsrruaci)

glass

aaiwerun4

wooden block

rnry& sieiu

Diagram 2

ur-ib z

The nurnber of bricks that each material can support is recorded in Table 2.

JgLL6!6in66uI 2, gerrQeirnq6 Oun6enaqgrb gnrruo'6oa4u-t et$eulel

CI s ru e;$ e afl eui cr niwodfl &anaS 191S r*a u u L $ en srrgt

Table 2

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Type of material

Sunq6enseiflan

or6f}s

Glass

aaimdfmn4

Wooden plank

mryiua)6tr)6

Concrete

onan$flt-

Number of bricks that

can be suPPorted

gnmadi e6ll+tu

Serruapeaflan

eraiurofl6eins

t5

-

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2. Diagram 2 shou,s an investigation carried out by a pupil. A brick is placed on a piece of

gUJs. fhe mrmber of bricks is increased until the glass break. The steps are repeated on a

wooden plank and a piece of concrete'

uLlb 2 g(s rofr6nrTanry GnpQencriurL 63i €sgrulo?6oor& anr-$a6rfpgl

96 Gt6rH56b g(D aaiueironr4 Saiunaan Groeb 6ooj6siuo6mpgt

aaiwournr4 e-finLtj-|tb ol6ory Qd:rrua$aslfl6Tr 6T6furerd'l$ans

er$aflri;ouu$'Spg €rfglol4dcara L8siuTGltb ioryiuoora ro;bELb

onan6}flr- Giosb Pu$guu$S66rpgl

brick

Qenfuaa)

glass

oaiwonn4

wooden block

rory6 oucot-

Diagram 2

ur*Lb z

The number of bricks that each material can support is recorded in Table 2'

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Table 2

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Type of material

Sunqgenoaftein

ol6T)6

Glass

eeiimomn4

Wooden plank

mryuuaroam

Concrete

snan8flt-

Number of bricks that

can be suPPorted

pnrrua& so'tqtt-l

6ternrspoofleilr

ereiiurod?l6ans

15

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(a)

5

What is.thepurpose ( aim) ofthd investigbtion? '

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2d

L_tr

Total 28

(b) State-64flut]l$o

What is changed ( manipulated variable) in this investigation,

EtfE gfmtuotleb crg, ronpguuL_L_grl t ppeniq ton$ ),

What is observed ( responding variable)

in this investigation,

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( c ) Which of the materials tested in this investigation will make a strong building?SIEE gryrni:olleb urfGcn$toeu uLL Gu nqgenoerfteir, a$ e_Et$u:nein

aL-lurb excoro&o o golrbr

1l_

(d) State one relationship between the variable that is changed ( manipulated ) and-

the variable that is observed ( responding)gbenryq mn4fl61grb enryq longffogrn $cor__Gu_r e_en6n egnL_ryeoue

qsSuCI$o.

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J-

6

fne bar chart in diagrgm 3 shows the nurnber o{elephants in jungle from 1998

to 2001.

6gooqg11rb 1ggffo:cnrgerq uurb r+sa-ggril e$6iiurG tlrpcb zoor-egrb €S6iinG

or6arry ruia.i, cunqg$ tu [roratooflor aaincud'tibcoocou-td o nr-Ge eorpbt.

Number of elePhant

u-r nancfi o6rfl6-tr aniueffliiieos

1998 !999 2000

Diagram 3

ULtb 3

(a) What is the tend of change in the number of elephants from year

uls-4rb e5dia$ 1gng5b zoor-4rb e56ii6r$ or6r)ry u:nanecoerflor

eypuu$enen Lonppdt aotgutt

1998 to 20AL?

aefurodl&corsuJleil

(b) State one reason ( inference ) for your answer in (a)

(a) ollecu6enear 96 onrycmg6CIPe i esr$gEcbl €Uflutllt-sqd:

(c) Predict the number of elephants in the year 2A02.

zooz-eir u:neoeuroerflcn aerfmorffi Sroocou-t agU Loncililoeald.

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(d) Statethe relationship between the year and the numberof elep.hants.g6inG@Lb urnancmoeifl* *n""hra-"e.fi 6;;d I_** clgrurq oeircnr

( e ) Give one reason ( inference ) based on the statement above.GroporgtLh oogEinqg 6l$u 96 onrycuuriii6og6 ( ueggeby64Nlur5luopb

The number of elephants increases in the year 2004200+ 4ril €S6.inG' u_lnorncroerflein aeiimolfl6ano ex$lofl$g e_drengl

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-8

-4. Diagram 4 shows three test tubes, S,T and U are,filled with equal vohme of hot

*ut"" The iaitial lemperature of hotwdel in each.test tube is the'same . The test

tubes are wrapped with different typesof materials. The temperature in each test

tube is observed after 30 minutes.

ut--tb 4, SJ,U S$Eu C1p66r$ Genpowr& Eigmfuasr?eil a3C[ Qonenenenal

Gfan$f$yEyriuuuur4g;uucnEo

om-S69g epcurE GenEcarur& EipmLasfian

e3rybu - Qaruu$ano trro exenroor& Qonaimugt. GengeoeoE @grl8cor

Groyituyuqoen AoleirGorg Qunl6coen& Glonnin$ a;ipuut-$enonen. 30

tsrn1_EStp(g fip(6 gorQornE Gengancurri Oprnrllgll6'ncrr Sftetr GoruuScoeu

e-$p4flu:uuLLgt.

plastic

6raS

Test tube

Genpanenth

(5Pndl

tube

Cengotandr

@g)lTtil

newspaper

Dn6'flgp

cotton

u6eTest tube

Genproear&

ggnir

Diagram 4' ui-& a

Table 3 shows the rezults of the investigation.

exir--o:srruu a, qgrymi"lolro (pqerloeoen& ont-S8pgt.

Table 3

ggil-oteoem :

Test Tube

Cenprocm& Opmil

Temperature OfWater After 30 Minutes

30 SnLg6l$g tllotcory $Itl6fr .

Qeuilu$anal

S Low(66)r'6,{

T Highg)|5l6rb

U Higher

t5lo et6lstb

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(b)

(a)

(c)

What is fhe purpose i ui* ) of this invesligation ?

€tSg grymlolleur Ggn&orb ercoreorz

Based on the information in Table 3, which material is the best insulatorofheat?gtLlanroonn 3g6b Eeoldis Aupp gooreboeo6n etr+uuanlutna6 goneii.n$n$g 8un16eir Cteiruu gfl$cb oLjb$t CtunlDennlgLip

State one reason ( inference)based on your answer in a ft)1u)-geb gigf,urltr_L_ oltcor_6onco 5lq6 onryemg6rlE{i, i uggEeily eaglo.

___

4b

Gd) State

6gurtgo

i' wtrat is cha,'ged- ( manipulated variabre) in this investigatioqSrfg eJrynfralleb erg, irnpprluuL-g1 i

"*"^Lon41 l,

lfat is observed ( responding variable ) in this investigation.€t$p +UrniLolteb ng,- e_gpfru_ruuirg,r ( 6rfl1 mng l,

END OF SECTION B

Gseiroftg gn6ir tpp$rb

ii.

Total 84

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30 minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAIIU

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$ti;Co6rTerTt$gnerfleil etpponagg16;ouuL-u g'rL-droerft6b 6r(99Geueiin$rb.

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A19 ug$leou-rGun grs$ eebarglqru8at AmnpuSeb eiileouuafl6ee-m619 e;g1lo6l o_6iin$.

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