SSU Science P2

7/24/2019 SSU Science P2

1/14

SEKOLAH SRI UTAMA

KUALA LUMPUR

PEPERIKSAAN AKHIR TAHUN 2015

SCIENCE KERTAS 2

TINGKATAN 4

Instructions:

1. This question paper consists of three sections: Sction A! Sction " and Sction C.

2. Answer #$$questions in Sction A and Sction "% Write your answers for Section A

and Section B clearly in the spaces provided in the question paper.

&% Answer 'ustion 10 and either'ustion 11 or 'ustion 12 in Sction C%

Write your answer for Sction C on the lined paper in detail.4. You ay use equations! dia"ras! ta#les! "raphs and other suita#le ethods to

e$plain your answer.

%. The dia"ras in the questions provided are not drawn to scale unless stated.&. You ay use a non'pro"raa#le scientific calculator.

(. )ar*s allocated for each question or part question are shown in #rac*ets.


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Sction A

+2, ar*s-

Answer #$$ questions in this section.

1. Ta#le 1.1 shows an e$perient to study the len"th of thread and tie ta*en for one copleteoscillation

en"th of thread /c0 %., 1,., 1%.,

Tie ta*en /s0 2 ( 1,

1,," ass were attached at the different len"th of thread and swin"! and the tie ta*en for

one coplete oscillation were recorded in the ta#le a#ove.

a0 ist all the varia#les involved.

/i0 )anipulated varia#le : .

/ii0 espondin" varia#le : .

/iii0 3onstant varia#le : .

#0 What is the hypothesis

c0 5f the len"th of the thread is increased! predict the tie ta*en for the one copleteoscillation.

d0 State the no#le values that can #e applied in this e$perient. 6ive reasons for your

answer.

.

7

+ 7 ar*

+ 1 ar*

+ 1 ar*

+ 1 ar*


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2. 8ia"ra 2 shows an e$perient to study the reactivity of etals with o$y"en.

9otassiu an"anate /550 crystals will produce o$y"en when it heated.

(i#)r#* 2

Ta#le 2 shows the result of the e$perient%

T#+$ 2

4

T,- o. Mt#$ "ri)/tnss o. $i)/t

Aluiniu ery #ri"ht

;inc Bri"ht

3opper


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/a0 State the varia#les in this e$perient.

/i0 )anipulated varia#le================================================================

+1 ar*-

/ii0 espondin" varia#le

================================================================

+1 ar*-

/iii0 3onstant varia#le

=================================================================

+1 ar*-

/#0 State one hypothesis for this e$perient.

==================================================================

+1 ar*-

/c0 Write one o#servation fro this e$perient.==================================================================

+1 ar*-

/d0 State one inference fro this e$perient.==================================================================

+1 ar*-

/e0 Based on the result of e$perient! tic* / v 0 for the ost reactive etal with

o$y"en.

+1 ar*-

/f0 Based on the result in Ta#le 4! state one conclusion in this e$perient.

==================================================================+1 ar*-

%

Aluiniu

;inc

3opper


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3. The >or 4 Bestari

carry out an e$perient to

study the There are four "roup of

#lood? A! B! AB and @.

Ta#le 7.1 shows the "roup#lood of 2% pupils in theclass.

T#+$ &%1

/a0 Based on Ta#le 7.2! deterine the nu#er of pupils in each "roup.

3oplete Ta#le 7.2.

T#+$ &%2

+1 ar*-

/a0 Based on the result in Ta#le 7.2! draw a #ar chart in the "raph paper provided to

show the nu#er of pupils a"ainst the "roup of #lood.

+2 ar*s-

/#0 State the varia#les in this e$perient.

/i0 3onstant varia#le

=========================================================== +1 ar*-

/ii0 )anipulated varia#le

===========================================================

&

O A O " O

A" " O " A

O A " A O

" O " O A"

O A" O A "

Grou- o. +$oo

Nu*+r o. -u-i$


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+1 ar*-

/iii0 espondin" varia#le

=========================================================== +1 ar*-

Sction "

+7, ar*s-

Answer #$$ questions in this section.

%. 8ia"ra % shows an activity that is carried out to study refle$ action.

8ia"ra %

Student B *noc*s the *nee of student A with haer.

a0 What can #e o#served

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+1ar*-#0 8raw an arrow / 0 in dia"ra to show the direction of his le"

oveent.

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+1ar*-c0 What inference can #e ade fro your o#servation in 1 /a0

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+1ar*-d0 State the operational definition of a refle$ action.

(


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'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+1ar*-

e0 8raw the path of the refle$ action.

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+2ar*s-&. 8ia"ra & shows the atoic structure of a particular eleent.

8ia"ra &

a0 Based on dia"ra 1!

i0 What is the nae of this eleent

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+1ar*-

ii0 What is the nucleon nu#er of this eleent

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' +1ar*-

#0 $plain why the a#ove ato is said to #e neutral

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+2 ar*s-

c0 ow would this ato #ecoe a ne"ative ion

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''

+2 ar*s-

C


8/14

(. >i"ure ( shows a cross'#reedin" #etween a pea plant with red flowers and a pea plant

with red flowers and a pea plant with white flowers to produce >1 "eneration plants.

The "ene of the red flowers is doinant! while that of the white flowers is recessive.

9ea plant with red flowers 9ea plant with white flowers

9arents: D

6aetes:

>1 "eneration:

i)ur

a0 What type of cell division ta*es place durin" the foration of "aetes

#0 3oplete the scheatic dia"ra in >i"ure ( to show the cross'#reedin" #etween the

plants.

..

E

))

+ 1 ar*-

+ 2 ar*s-


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c0 State the colour of the flowers produced in the >1 "eneration.

.

d0 State the parts of the flower that produced the ale "aete and the feale "aete.

..

e0 5f the >1 "eneration plants are cross'#red aon" theselves! predict the ratio of the

nu#er of plants with red flowers to the nu#er of plants with white flowers

produced.

....................................................................................................................................

1,

+ 1 ar*-

+ 1 ar*-

+ 1 ar*-


10/14

C. 8ia"ra C shows the 9eriodic Ta#le with soe eleents denoted #y letters 9!!S and

T.

I II III I3 3 3I 3II 3III

(i#)r#*

a0 What is the nae of the:

i0 ertical colun : . + 1 ar*-

ii0 oriFontal row : .. + 1 ar*-

#0 What property chan"es fro 9 to

.

+ 1 ar*-

c0 6ive one physical property of S.

.

+ 1 ar*-d0 What is the nae of the "roup where T #elon"s

.

+ 1 ar*-

11

RP

ST


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e0 What is the proton nu#er of

..+ 1 ar*-

f0 What is the electron nu#er of 9

%%%%%

+ 1 ar*-

E. Ta#le E #elow shows the nu#er of protons! neutrons and nucleon nu#er of

particles A!B!3 and 8.

P#rtic$ Nu*+r o. -rotons Nu*+r o. nutrons Nuc$on nu*+r

A 11 12

B 1( 7%

3 2, 7(

8 2, 22

T#+$ 6

a0 3oplete the ta#le a#ove. +2 ar*-

#0 i0 Which pair of particles are isotope

..

+1 ar*-ii0 6ive your reason for the answer in #0 i0

...

...+1 ar*-

c0 9article A is a neutral ato. ow any electrons does A have

..

+1 ar*-

12


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Sction C

+2, ar*s-

Answer'ustion 10 andeither 'ustion 11 or 'ustion 12

Write your answer on pages

The time suggested to answer this section is 40 minutes

1,. Study the followin" stateent .

a0 Based on the stateent a#ove! write a suita#le hypothesis. +1 ar*s-

#0 8escri#e on e$perient that can #e carried out in the la#oratory to the your

hypothesis in 17#8% Your description should contain the followin":/i0 Ai of the e$perient.

+1 ar*s-

/ii0 5dentification of varia#les.+2 ar*s-

/iii0 ist of apparatus and aterials.

+1 ar*s-/iv0 9rocedure.

+7 ar*s-/v0 Ta#ulation of data.

+1 ar*s-/vi0 3onclusion.

+1 ar*s-

17

8ifferent etal has different reactivity withacid


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110 a0 $plain the chan"es in the #ody #rou"ht upon #y #oth the nervous syste and

endocrine syste when a person faces a fri"htenin" incident. +%ar*-

#0 8ru"s can "enerally #e classified as stiulants! depressants and hallucino"ens.

$plain the effects of these dru"s on #ody coordination and health. +%ar*s-

120 a0 6ive five differences #etween etal and non'etal.

+4 ar*s-

#0 8ia"ra #elow shows three su#stances.

You are required to develop a concept of an non'etal. Your answer

should #e #ased on the followin" aspects:

5dentify two coon characteristics of a non'etal.

8evelop an initial concept of a non'etal.

6ive one e$aple of a non'etal and one which is not a non'etal.

6ive reason for each e$aple.

Build the real concept of a non'etal.

+& ar*s-

THE EN( O 'UESTION

9repared #y:

)s. ;ainurain ;ainal A#idin

14

Sulphur Broine 5odine

Su#stances


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1%

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