skema kertas 1 dan 2 final exam 2012

7/22/2019 Skema Kertas 1 Dan 2 Final Exam 2012

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SKEMA KERTAS 1 DAN 2 PEPERIKSAAN PERTENGAHAN TAHUN SMJK CHIO MIN 2012

KERTAS 1 :

1. A 6. B 11. D 16. B 21. B 26. C 31. D 36. B 41. C 46. A

2. B 7. D 12. D 17. C 22. B 27. B 32. B 37. A 42. B 47. B

3. A 8. B 13. A 18. B 23. C 28. A 33. D 38. D 43. B 48. C

4. C 9. A 14. A 19. A 24. B 29. C 34. A 39.B 44. C 49. B

5. D 10. B 15. D 20. D 25. A 30. C 35. C 40. D 45. A 50. A

KERTAS 2 :

SECTION A

Question Answe M!"s

1# $!%

$&%Nucleon number is total number of roton an! neutron in a nucleus of an atom

$'%Atom " an! atom #

$(%$sotoes is !ifferent atoms of t%e same element

&%ic% %a'e same roton number

2

1

1

1

1

Ato)Poton

nu)&e

Nu)&e o*

neuton

Nu'+eon

nu)&e

W 13 14 27

X 15 16 31

Y 16 16 32

Z 15 17 32


2/7

But !ifferent in number of neutron(nucleon

2# $!%

T!&+e 2#2

)b*

2

2

M!ss $",% Nu)&e o* stu(ents

50 + 54 4

55 + 59 9

60 + 64 4

65 + 69 3

70 + 74 8

75 + 79 4


3/7

$'% Continuous 'ariation

1

-#

$!% ,lectrolatin-

$&% i : Coer

ii /etal / !issol'es in t%e coer)$$* sul%ate solution to form coer irons an!

becomes t%inner

$'% iron e

$(% i : %e surface of t%e iron e ill be coate! it% a bron laer of coer

ii : %e surface of t%e metal to be late! must be cleane! it% san!aer before

electrolsis be-ins( !n(t%e electrolsis s%oul! be run in slo current

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1

2

1

1

2

SECTION .

/# $!% oluntar action

$&% i#

ii# Cerebrum

1

1

1

# $!% i# /otor neurone

ii# ensor neurone

$&% Den!ron

1

1

1


4/7

$'% ecei'es imulses an! transmits t%em to t%e cell bo!

$(% : ensor neurone

: /otor neurone

1

1

1

3# (a) P : electron

Q : proton

(b) Neutral

(c) 15

(d) i .

ii. proton : 11 neutron : 12 nucleon : 23

1

1

1

1

1

-

4# (a)

(

b)

(c

)

(

d)

K Al%a ra!iation

M amma ra!iation

ositi'el c%ar-e

: Ne-ati'el c%ar-e

Thick block of lead/concrete

Gamma radiation

1

1

1

1

1

1

5# (a) i : Blue/red/green

ii : yellow

(b) white

(c) X : ed

Y : !iolet

(d) green

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1

1

1

1

1

SECTION C


5/7

6# (a) hypothesis :

"ndothermic reaction i# a chemical change reaction that cau#ed ri#ing in

temperature

(b) (i) $im of the e%periment

To #tudy heat change# in chemical reaction#

(ii)&dentification of 'ariable#

(on#tant : !olume of water / temperature of water /

)anipulated : type of chemical #ub#tance wa# u#ed / type of #alt u#ed

e#ponding : drop in water temperature / final temperature

(iii)*i#t of apparatu# and material#

Materials: +odium hydro%ide, ammonium chloride and di#tilled water

Apparatus :Te#t tube# , thermometer, te#t tube# rack#, #patula, #tirring

road and cork#

(iv)-rocedure or method

1. -our a #patula of #odium hydro%ide pellet# into a te#t tube half0lled

with water.

2. (lo#e the te#t tube with a cork and #hake the te#t tube until all the

#odium hydro%ide pellet# ha'e di##ol'ed.

3. old the te#t tube in your hand to feel the change in temperature, a#

#hown in the diagram b.

4. epeat +tep# 1 to 3 by u#ing ammonium chloride in#tead of #odium

hydro%ide.

5. Tabulate your ob#er'ation#.

(v)Tabulation of data

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1

2

1

/

1


6/7

+alt Water

temperature at

beginning o

e!periment

Water

temperature at

the end o

e!periment

inerens

+odium

hydro%ide

$mmonium

chloride

10# (a)

"ontinuous variation #iscontinuous variation

#einition : 'ariation that #how#

a 'aried trait

#einition : 'ariation that #how#

definite and fi%ed difference#

$!amples : (at least %

e!amples)

&ody 'eight

in colour

$!amples : (at least %

e!amples )

*ender

&lood group

(b) !ariation #how definite and 'ariation i# fi%ed difference#

ii) blood group and pre#ence of dimple# or lefthandedne##

iii) height and body weight or #kin colour, intelligence

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2

1

2

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2


7/7

11# (a) effect# of drug abu#e on body coordination and health

1. #lowing down body re#pon#e

2. hallucination

3. infection of di#ea#e

4. #timulating body re#pon#e#

5. any an#wer that can be acceptable

(b)

(i)identify the problem :

&ncrea#ing of crime i# influence by the increa#ing of alcohol and drug

abu#e.

ii way to o'ercome :

$ny rea#onable an#wer.

"%ample# :

1. education parent play important role to educate their children not

in'ol'e in alcohol and drug abu#e

2. campaign Go'ernment and Non go'ernment organiation #hould

cooperate together in doing a campaign to aware the ci'iliation

about the dangerou# of alcohol and drug abu#e

choo#e the be#t method with #imple e%planation

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skema kertas 1 dan 2 final exam 2012

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