bab 1 sains form 2
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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) ..
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Diagram 1
P 2 .
Q 2 .
R 2 .
S 2 .
outer middle inner
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Form 2 ScienceChapter 1
#- 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%
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D8agram -.1
PR 2 .
S 2 Q
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Form 2 ScienceChapter 1
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
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ir
;lass
P2 Q2
R2
Diagram 9.1
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Form 2 ScienceChapter 1
(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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Form 2 ScienceChapter 1
(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%
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Diagram >.1
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Form 2 ScienceChapter 1
(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%
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Diagram >.-
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