skema sains k 1 dan 2 - pat t2 - perak 2011

7/27/2019 Skema Sains k 1 Dan 2 - Pat t2 - Perak 2011

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JABATAN PELAJARAN NEGERI PERAK

PERATURAN PEMARKAHAN

SKEMA JAWAPAN SAINS K1 & 2

PEPERIKSAAN AKHIR TAHUN SELARAS 2011

Skema Sains Tingkatan 2 Kertas 1

No soalan Jawapan No soalan Jawapan

1 C 21 C

2 B 22 A

3 C 23 C

4 B 24 B

5 D 25 A

6 D 26 C

7 B 27 B

8 A 28 B9 A 29 C

10 C 30 D

11 D 31 D

12 D 32 A

13 D 33 A

14 C 34 D

15 C 35 A

16 B 36 A

17 C 37 D

18 A 38 D

19 B 39 B

20 C 40 C

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Skema Sains Tingkatan 2 Kertas 2

1

(a) K : Touch receptorL : Cold receptor

M : Pressure receptor(b) Touch receptor(c) Finger tip.

There are more receptors at the finger tip //The epidermis of the finger tip is thinner

1 m1 m

1 m1 m2 mTOTAL= 6m

2

(a) to clear a clogged pipe(b) air pressure decreased(c) (i) air pressure decrease/ reduce(ii) becomes higher(d) Air pressure increases when volume of air decreases(e) Temperature

1 m1 m1 m1 m1 m1 mTOTAL= 6m

3 a) Carbohydrateb) i. glucose

ii. glucose is a small molecule // small molecule can passthrough it

c) i. label at small intestineii. pancreas, small intestine

1m1m1m

1m2mTotal 6m

4 a) salt and water. (1 mark each)b) titrationc) blue litmus paper// universal indicatord) red litmus paper// universal indicatore) to reduced/ neutralized the acidity of patients

2m1m1m1m1mTotal : 6m

5 (i) (a) i

ii. Frictional forceiii. Enable us to walk without slipping // to write // to play

music // to stop a car (Any two)

(b) Work done X Force= 60 N X 0.5 (1 mark)= 30 Nm / Joule ( 1mark)

1m

1m2m

2m


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(c) (i) The heavier the weight of force, the larger the frictionalForce

(ii) 240 Newton

1m

1mTOTAL=8m

6 (a) (i) Lime water turns cloudy// water vapour form on the wall ofgas jar(ii) Lime water turns chalky because carbon dioxide is present//

Lime water is formed because(b) (ii) carbon dioxide

(iii) heat energy / light energy(b)(ii) charcoal + oxygen carbon dioxyde + energy(c )(i) turns cloudy/milky

(ii) Carbon dioxide is released during combustion(d) Combustion of carbon release carbon dioxide but combustion

of hydrocarbon release carbon dioxide and water vapour

1 m

1m

2m

2m

1 m1mTotal = 8m

7 a) to study the stability of the blockb) i)L

ii)Jc) i. Height of the block

ii. time taken for block toppleiii. the base area of the block

d) the stability of the block caused by the height of the blocke) the increase the height , the lower its stability// vice versaf) base areag) least stable wooden block is the first wooden block topple.

1m1m1m1m1m1m1m1m1m1m

Total: 10m8

P Q R S

1m correctvalue1m-uniformlybar


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END

b) conduction

c) R

d) P

e) R,S,Q,P

f)

Metals/ Logam Non metals/ Bukan logam

CopperIron

Aluminium

glass

g. the holder for cooking utensil// any suitable answer

1m1m1m1m

2m4 correct 2 m3-2, correct-1m1,0 correct-0m1m


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skema sains k 1 dan 2 - pat t2 - perak 2011

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