BAHAGIAN B

1.Rajah 1 menunjukkan satu penyiasatan yang dijalankan oleh sekumpulan murid.Diagram 1 shows an investigation that is carried out by a group of pupils.

Jarak di antara kubus dan Sumber cahaya (cm)Distance between the cube and the light source (cm)

1015202530

Ketinggian bayang-bayang yang terbentuk ( cm)Height of the shadow formed ( cm )

5791113

Jadual 1/Table 1(a) Apakah tujuan penyiasatan ini ?What is the purpose of this investigation ?

______________________________________________________________________________ (1 mark )(b) Apa yang di ukur (pembolehubah bergerak balas) dalam penyiasatan ini?What is measured (responding variable ) in this investigation? ______________________________________________________________________________( 1 mark) (c ) Apakah corak perubahan ketinggian bayang-bayang yang terbentuk jika jarak diantara kubus dan skrin berkurang? What is the trend of change in the height of the shadow if the distance between cube and screen decrease?

(1 mark ) ( d ) Ramalkan ketinggian bayang-bayang apabila jarak antara kubus dengan skrin ialah 35 cm. Predict the height of the shadow when the distance between the cube and the screen is 35cm. _____________________________________________________________________________( 1 mark) (e ) Apakah kesimpulan yang boleh dibuat daripada penyiasatan ini? What is the conclusion can be made from this investigation ? ______________________________________________________________________________( 1 mark) 2.Rajah menunjukkan satu penyiasatan yang di jalankan oleh sekumpulan pelajar. Diagram shows an investigation conducted by a group of pupils. Pemerhatian mereka di rekodkan dalam jadual. Their observation is recorded in table.

Tindakan ke atas bola besiAction on the iron ball

DipanaskanHeatedDi sejukkanCooled

Keadaan bola besiCondition of the iron ball

Tidak boleh melepasi gelang besiCannot pass the iron ringBoleh melepasi gelang besiCan pass the iron ring.

Jadual 2(a ) Apakah tujuan penyiasatan ini ? What is the purpose ( aim ) of this investigation ?

___________________________________________________________________________________

___________________________________________________________________________________ ( 1 mark )(b )Nyatakan : State :i) Apa yang di ubah / What is changed :_____________________________________________ ( 1 mark )ii) Apa yang di perhatikan / What is observed :________________________________________ ( 1 mark )iii) Apa yang di tetapkan / What is kept the same :_____________________________________ ( 1 mark )( c ) Apakah kesimpulan yang boleh di buat daripada penyiasatan ini What is the conclusion can be made from this investigation __________________________________________________________________________________

___________________________________________________________________________________ ( 1 mark )

3.Alia dan kumpulannya menjalankan suatu penyiasatan.Mereka menjemur dua helai tuala kecil di bawah sinaran ,matahari dengan cara yang berbeza seperti yang di tunjukkan dalam rajah 1. Mereka memerhatikan tuala selepas dua jam. Alia and her group carried out an investigation.They hung up two small towels in the sun in different ways, as shown in Diagram 1.They observed the condition of the towels after two hours.

Pemerhatian dicatatkan seperti pada jadual 3 .The observations are recorded as shown in table 2.

Tuala / TowelXY

Keadaan / conditionsMasih basahStill wetKeringDry

Jadual 3( a ) Berikan sebab ( inferens ) bagi menerangkan setiap berikut. Give one reason ( inference) to explain each of the following .

( I ) Tuala X masih basah selepas dua jam. Towel X was still wet after two hours.

_________________________________________________________________________________( 1 mark )

(ii ) Tuala Y kering selepas dua jam. Towel Y dried out after two hours. _________________________________________________________________________________( 1 mark )( b ) Berdasarkan penyiasatan ini, nyatakan yang berikut: Based on this investigation, state the following :

i) Apa yang di tetapkan / What is kept the same :______________________________________( 1 mark )ii) Apa yang di ubah / What is changed :______________________________________( 1 mark )C) Apakah kesimpuan yang dapat anda buat daripada penyiasatan ini ? What is the conclusion that you can draw based on this investigation ?

____________________________________________________________________________________( 1 mark )

4. Jadual 4 menunjukkan keputusan hasil penyiasatan yang telah di jalankan oleh Ahmad Danial terhadap cecair P, Q dan R. Table 4 shows the result of an investigation that has been carried out bt Ahmad Danial using liquids P, Q and R.

Jenis cecairType of liquid

Perubahan warna kertas litmus biru dan kertas litmus merah.Change in the colour of red litmus paper and blue litmus paper.

PWarna kertas litmus merah bertukar biruRed litmus paper turns blue

QWarna kertas litmus biru bertukar merah.Blue litmus paper turns red.

RTiada perubahan warna kertas litmus merah dan kertas litmus biru.No colour change in the red litmus paper and blue litmus paper.

Jadual 4

(a) Berikan satu sebab (inferens) tentang perubahan kertas litmus biru dan merah terhadap bahan P dan Q : Give one reason (inference about the changes of blue and red litmus papers for sbstances P and Q

i)Bahan P/ substances P :______________________________________________ ( 1 mark )ii)Bahan Q / Substances Q:_________________________________________ ( 1 mark )

( c ) Nyatakan sama ada cecair P, Q dan R adalah bahan berasid, beralkali atau neutral. State whether liquids P, Q and R are acidic, alkaline or neutral substances.

i) Cecair P / liquid P :_________________________________________________________ ( 1 mark)ii) Cecair Q / liquid Q :_________________________________________________________ ( 1 mark)iii) Cecair R . liquid R : _________________________________________________________ ( 1 mark )

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