zoban 8- bahagian b

7/23/2019 Zoban 8- Bahagian B

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Section B [20 marks]

The time suggested for this section is 30 minutes. If you are unable to answer a question,

proceed to the next question. Answerallquestions. rite your answers in the spaces pro!ided.

Bahagian B

"asa yang dicadangkan untuk bahagian ini ialah 30 minit. Tulis #awapan anda di ruang yang

disediakan.

1 Aladin running an experiment to investigate the relationship between the quantities of wateraffected in the producing the numbers of leaves and the results is shown in the 1 below:

Aladin men#alankan eksperimen untuk mengka#i adakah terdapat perubahan kuantiti air

mempengaruhi bilangan daun. $elepas seminggu keputusan dinyatakan seperti di dalam

#adual % dibawah.

Quantiti of water

Kuantiti air (ml)10 !00 "0 #00 $0

Bilangan daun % 11 1 1

&adual 1

&adual 1 menun'u((an data )ang di(umpul sepan'ang men'alan(an e(sperimen

terhadap tumbuhan.

(a) *tate the trend for the number of leaves produced.

&yatakan corak perubahan bilangan daun yang dihasilkan

+++++++++++++++++++++++++++

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ [1 marks]

(b) ,redict the number of leaves produced if the plant is watered with #0 mlof

water.

'amalkan bilangan daun yang dihasilkan oleh tumbuhan sekiranya disiram

dengan ()0 ml air

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

+++++++++++++++++++++++++++++ [1 marks]

(c) -hat can )ou conclude from the activit)Apakah yang boleh disimpulkan hasil daripada akti!iti di atas

+++++++++++++++++++++++++++++

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 marks]


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2

/ea(erA /ea(er*

Diagram 1/ Rajah 1

*tud) the setup in iagram 2 carefull) then answer the following question.

+erhatikan susunan radas dia atas dengan teliti dan #awab soalan berikutnya.

(a) ,redict what will happen to the nail in each bea(er.

'amalkan apakah yang akan berlaku kepada setiap paku di dalam bikar

/ea(er A : ++++++++++++++++++++++++++++++++++++++++++++++++++++++

*ikar A :+++++++++++++++++++++++++++++++++++++++++++++++++++++++

/ea(er*: +++++++++++++++++++++++++++++++++++++++++++++++++++++++

*ikar *: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ [2 marks]

(b) ive )our inference in each case.

*erikan inferen sebab- bagi setip #awapan anda

/ea(er A : ++++++++++++++++++++++++++++++++++++++++++++++++++++++

*ikar A :+++++++++++++++++++++++++++++++++++++++++++++++++++++++

/ea(er*: +++++++++++++++++++++++++++++++++++++++++++++++++++++++

*ikar *: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ [2 marks]

(c) 3ame two wa)s to prevent rusting.

&amakan duacara untuk mengelakkan pengaratan berlaku

4i5 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

4ii5 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[2 marks]

Oil layer/Lapisan minyak

Water/air

boiled water/

air yang telah dimasak

iron nail

paku besi


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3. A bo) wants to move a heav) box as shown in diagram 2.

*eorang murid memindah(an (ota( )ang berat seperti di dalam ra'ah 2

Diagram 2/ Rajah 2

4a5 *tate the t)pe of force that is used b) the bo) to move the box.

Nyatakan jenis daya yang digunakan oleh budak lelaki berkenaan

untuk menggerakkan kotak tersebut

______________________________________________________________________

______________________________________________________________________

[1 mark]

(b) ive onereason 4inference5 wh) the box is hard to be removed.

Berikan satusebab (inferen) mengapa sukar untuk menggerakkankotak tersebut

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]

(c) *tate twowa)s on how to move the box more easil).

Nyatakan duacara bagaimana untuk menggerakkan kotak dengan

lebih senang

1. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[2 marks]

4d5 *tate the relationship 4h)pothesis5 between the mass of box and the abilit) of the box to be

removed.

Nyatakan hubungan (hipotesis) di antara jisim kotak dan kesukaan

untuk menggerakkan kotak berkenaan.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]


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4 6able 2 shows ! gears of different si7es that can be found in a wrist watch. 6he number of

rotation ! gears in one minute is recorded.

adual / menun#ukkan 3 #enis gear yang berlainan sai yang di#umpai di dalam #am tangan.

*ilangan putaran ketiga1tiga gear dalam satu minit direkodkan.

!ear

Gear

"umber of rotation#

Bilangan putaran2 10

1

4 20

$able 2/ %adual 2

4a5 -hat is the purpose 4aim5 of the investigation

Apakah tu#uan penyiasatan ini5

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]

4b5 *tate the relationship between the si7e of the gears and the number of rotations in one

minute.

&yatakan hubungan diantara sai gear dan bilangan putaran dalam masa satu minit.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]

4c5 ,redict which gear has the biggest si7e.

'amalkan gear manakah yang mempunyai sai yang besar

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]4d5 *tate onereason 4inference5 based on )our answer in 4c5.

&yatakan satusebab inferen- berdasarkan #awapan anda di 6-.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]

4e5 *tate

&yatakan

4i5 what is changed 4manipulated variable5:

Apakah diubah pemboleh ubah dimanipulasi-7

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

4ii5 what is observed 4responding variable5: Apakah yang diperhatikan pemboleh ubah bergerak balas-7

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[2 marks]

4f5 -hat conclusion can be made based on the observation on gears2and4


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Apakah kesimpulan yang boleh dibuat berdasarkan pemerhatian terhadap gear 2 dan 4.

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[1 mark]

Jawapan Bahagian B


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1. (a) Increase and later remain unchanged Meningkat kemudian tidak berubah (b) 15 (c) The most number of leaves are produced if watered with 600 mlor more. Daun lebih banyak tumbuh sekiranya disiram dengan 600 ml air atau lebih

2. (a)ea!erA" #ail will rust

Bikar A : Paku akan berkaratea!er B" #ail will not rust

Bikar B : Paku tidak berkarat

(b)There is air in bea!erA Terdapat udara di dalam bikar A

There is no air in bea!er B Tiada udara di dalam bikar B

(c)(i) $aint Cat

(ii) %oat with oil & grease

Sapu dengan minyak/gris

'. (a) $ush Daya tolakan

(b)rictional force between the bo and the surface of floor causes the bo hard tobe removed.

Daya geseran di antara kotak dengan permukaan lantai menyebabkan kotaksukar untuk digerakkan

(c)1. $ut wheels underneath the bo. etakkan roda di ba!ah kotak

2. *se wheel cart. "unakan troli beroda

(d)The heavier of the bo+ the harder of the bo to be removed. Semakin berat kotak# semakin sukar kotak tersebut digerakkan

,.(a)To investigate the relationship between the si-e of gears and the number of rotations ofgears.Penyiasatan bertu$uan untuk mengka$i hubungan di antara sai% gear dan bilangan putarangear&

(b)s the si-e of gear increases+ the number of rotations in one minutes decreases. Semakin bertambah sai% gear# bilangan putaran dalam masa satu minit akan berkurangan

(c)/ear'

(d)/ear'has the least number of rotations."ear ' mempunyai bilangan putaran yang kurang

(e) (i) i-e of gears & ai- gear (ii) #umber of rotations& ilangan putaran

(f) hen gear'ma!es one rotation+ gear (ma!es two rotations.

pabila gear berputar satu putaran+ gear berputar 2 putaran

zoban 8- bahagian b

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