bab 1 sains form 2

8/14/2019 Bab 1 Sains Form 2

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Form 2 ScienceChapter 1

FORM 2 CHAPTER 1

THE WORLD AROUND US

1. Diagram 1 shows the structure of a human ear. (Label)

(a) On diagram 1, label structures P, Q, R and S using the following words.

ochlea !ar ossicles Semi " circular canals !ustachian tube

#$ marks% (b) Draw lines to match the structures and their functions (Padan&an)

Structure Function

P

hanges sound 'ibrations into ner'e imulsesbah getaran bun*i &eada imuls saraf

Q

+alances the air ressure on both sides of theeardrumen*eimbang&an te&anan udara di &edua-belah telinga

Rmlifies sound 'ibrationsemer&uat&an getaran bun*i

S/els to maintain the bod* balance

embantu menge&al&an &eseimbangan badan#$ marks%

(b) 0ame twoarts of the inner ear which are in'ol'ed in the hearing mechanism.0ama&an dua bahagian telinga dalam *ang terlibat dengan me&anisma endengaran.

(i)

(ii) ..

JPN Pahang 2009 60

Diagram 1

P 2 .

Q 2 .

R 2 .

S 2 .

outer middle inner


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#- marks%

-. Diagram -.1 shows the arts of a human e*e. (Label)

Q

(a) Label structures R and S in Diagram -.1 using the following words.

Retina ornea Otic ner'e

#- marks%

(b) +ased on structures P and Q in Diagram -.1, comlete 3able -.-.

0ame of structure 0ama stru&tur

4unction of structure4ungsi stru&tur

P

Q

3able -.- #$ marks%

(c) 5hat haens to Q when a erson loo&s at a distant ob6ect7a *ang berla&u ada Q aabila melihat ada ob6e& *ang 6auh

#1 mark%

JPN Pahang 2009 61

D8agram -.1

PR 2 .

S 2 Q


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9. Diagram 9 shows the ath of a light ra* that enters a bloc& of glass.

(a) Label Diagram 9.1 using the words in the bo: below.

8ncident ra*Sinar tu6u

Refracted ra*Sinar bias

0ormal0ormal

#9 marks%

(b) 5hat causes the light ra* to bend as it tra'els from air to glass7

a *ang men*ebab&an sinar caha*a membeng&o& aabila merentasi udara &e caha*a

#1 mark%

(c) 0ame twohenomena that are caused b* the refraction of light.0ama&an duafenomena *ang disebab&an oleh embiasan caha*a.

(i)

(ii)

#-marks

%

JPN Pahang 2009 62

ir

;lass

P2 Q2

R2

Diagram 9.1


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(d) omlete Diagram 9.- to show what haens to a light ra* when it tra'els from glass toair. (Leng&a&an aa *ang berla&u7)

#1 mark%

$. Diagram $ shows the set u of an e:eriment to in'estigate the resonse of seedlingtowards e:ternal stimuli.Ra6ah $ menun6u&&an aturan e:eriment untu& men*iasat gera&balas bi6i benih &earahransangan luar.

(a) 0ame the two stimuli being in'estigated. 0ama&an duaransangan *ang diu6i7

(i) .

(ii)

#- marks%

(b) Predict what will haen to the following arts of the seedlings after se'eral da*s.


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(ii) Roots (a&ar) 2 .

#- marks%

(d) State the function of the anh*drous calcium chloride.0*ata&an fungsi anh*drous calcium chloride.

#1 mark%

(e) 0ame the growth resonse shown b* the0ama&an 6enis gera&balas ertumbuhan *ang ditun6u&&an oleh

(i) shoots 2 ..

(ii) roots 2 ..

#-marks%

>. Diagram >.1 shows the formation of image in the e*e of a erson with a 'ision defect. Ra6ah >.1 menun6u&&an embentu&an ime6 di dalam mata dengan masalah englihatan.

(a) (i) 0ame the 'ision defect shown in Diagram >.1. 0ama&an masalah englihatan *ang ditun6u&&an dalam ra6ah >.1

#1 mark%

(ii) ;i'e onereason for this 'ision defect.+eri&an atu sebab berla&un*a masalah englihatan ini.

#1 mark%

JPN Pahang 2009 64

Diagram >.1


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(iii) /ow do *ou o'ercome this defect of 'ision7+agaimana anda mengatasi masalah englihatan ini7

..

#1 mark%(i') Draw the correction of this 'ision defect as suggested in (a)(iii) on Diagram >.-.

Lu&is embetulan &eada masalah englihatan ini seerti *ang din*ata&an dalam (a)(iii) ada diagram >.-.

#- marks%

(b) (i) 0ame the 'ision defect which is common among elderl* eole.

0ama&an masalah englihatan *ang biasa berla&u &eada orang tua

#1 mark%(iii) ;i'e onereason for *our answer in (b)(i).

+eri&an satu alasan?sebab bagi 6awaan anda dalam (b)(i)

#1 mark%

JPN Pahang 2009 65

Diagram >.-

bab 1 sains form 2

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