18228990 Percubaan Pmr 09 Sabah Sc Paper 2

Sabah sc (paper2)

1

Section A Bahagian A

For Examiner’s use

[40 marks] [40 markah] Answer all questions Jawab semua soalan

1. 1. Diagram 1 shows pictures illustrating forms of energy. Rajah 1 menunjukkan gambar-gambar mengilustrasi bentuk tenaga.

Picture 1 Gambar 1 Picture 2 Gambar 2 Picture 3 Gambar 3

Diagram 1 Rajah 1

1(a) Total

A spinning top Gasing yang berputar

3

(a) (a) On Diagram 1, label the forms of energy using the following words:

6

Pada rajah 1, labelkan bentuk tenaga menggunakan perkataan di bawah:

Kinetic energy Chemical energy Tenaga kinetik Tenaga Kimia Sound energy Tenaga Bunyi Kinetic energy

A flying bird Burung yang sedang terbang A stretched spring Spring yang meregang 2 A Falling Coconut Buah kelapa yang sedang jatuh

1(c) 1(b) 21

3

2. Diagram 2.1 shows two potted plants that was placed in the dark for two days. The apparatus was then placed under the sun for a few hours. A leaf from each plant was then plucked and tested for starch. Rajah 2.1 menunjukkan dua tumbuhan dalam pasu diletakkan di tempat gelap selama dua hari. Radas itu kemudian didedahkan kepada cahaya matahari untuk beberapa jam. Sehelai daun dari setiap tumbuhan dipetik untuk menguji kehadiran kanji.

A

B Diagram 2.1 Rajah 2.1

(a) State the aim of the experiment in Diagram 2.1? Nyatakan tujuan ekperimen pada Rajah 2.1? ……………………………………………………………………………………

2(a) [1 mark] [1 markah]

(b) The two plants were placed in the dark for two days before carrying out the experiment.

1 Total

Why? Kedua-dua tumbuhan diletakkan di tempat gelap selama dua hari sebelum eksperimen itu dijalankan. Mengapa? …………………………………………………………………………………………… [1 mark] [1 markah]

(c) What is the function of potassium hydroxide solution in bell jar B? Apakah fungsi larutan kalium hidroksida dalam balang kaca B? …………………………………………………………………………………………….. [1 mark] 4 [1 markah]

(d) Record your observations in Table 2.2 after the leaves were tested for the presence of starch.                      A                                        B                                      C Rekod pemerhatian anda dalam Jadual 2.2 selepas daun-daun itu diuji untuk

8 2(b) 1

2(c) 1 5(e)(i) 3(b)(ii) 4(c)(ii) 3(b)(iii 3(a)(iii) 3(b)(i) 4(a)(ii) 5(e)(ii) 3(a)(ii) 4(a)(i) Total 3(a)(i) 5(b) 5(c) 5(a) 4(c)(i) 4(b) 5(d) 2(d) 2(e) Total 12181212661

6 (b)(i) 6(b)(ii) 6(a)(iii 2 1 k a h ]

6(a)(i) 1

Total  6(a)(ii) 6 1

5

Section B [ 20 marks ] [ 20 markah ] Jawab semua soalan. Answer all questions The time suggested to complete this section is 30 minutes Masa yang dicadangkan untuk menjawab bahagian ini ialah 30 minit

7. Diagram 7 shows a picture of flowers P, Q, R, S and T. Rajah 7 menunjukkan gambar tumbuhan P, Q, R, S dan T

P

Q

 S

 R Figure 7

 T

Diagram 7 Rajah 7

6

Based on your observations in Diagram 7, Berdasarkan pemerhatian anda pada Rajah 7, a) State one characteristic of any four flowers P, Q, R, S and T that will determine their agent of pollination. Nyatakan satu ciri bagi mana-mana empat tumbuhan P, Q, R, S dan T yang akan menentukan agen pendebungaan bunga tersebut. P : ...................................................................................................................................... Q : ...................................................................................................................................... R : ...................................................................................................................................... S : ...................................................................................................................................... T : ...................................................................................................................................... [4 marks] [4 markah]

7(a) 4

b) Classify P, Q, R, S and T into two groups based on their pollinating agent,. Kelaskan P, Q, R, S dan T kepada dua kumpulan berdasarkan agen pendebungaan.

    P,  Q,  R  , S, T

Pollinating agent Agen   Pendebungaan

Flowers Bunga

[4 marks] [4 markah]

7(b) 4 Total 8

7

8

8(b) 2

i n g o f

Resistor 1 Ω Perintang 1 Ω

t h e

Resistor 2 Ω Perintang 2 Ω

a m m e t e r

Resistor 10 Ω Perintang 10 Ω

Resistor 5 Ω Perintang 5 Ω

a s s h o w n

8(a)(i 1

i n

8(a)(ii)

D i a g r a m

1

Current, I (A) Arus, I (A)

1.0 8 . 0.9 2 . 0.8 L e n 0.7 g k 0.6 a p 0.5 k a n 0.4 0.3 0.2 0.1

9 Resistance, R (Ω) Rintangan, R (Ω)

Total  8(e)(ii) 8(e)(i) 8(d) 8(f) 8(c) 3112

2

END OF QUESTION KERTAS SOALAN TAMAT

10