Answer chemistry Trial Mara 2014

7/24/2019 Answer chemistry Trial Mara 2014

http://slidepdf.com/reader/full/answer-chemistry-trial-mara-2014 1/15

ANSWER SCHEME SPMRSM 2014

Kertas 11 D 11 A 21 D 31 C 41 A2 C 12 B 22 A 32 A 42 B

3 C 13 A 23 C 33 B 43 D4 C 14 A 24 D 34 A 44 B5 B 15 C 25 D 35 B 45 D6 A 16 B 26 B 36 A 46 C7 B 17 C 27 C 37 B 47 C8 B 18 D 28 B 38 D 48 B9 D 19 B 29 A 39 D 49 B10 C 20 A 30 A 40 C 50 D

PAPER 2 (SECT!N A"

NO MARK ANSWER NOTES

1(a) 1 Name the force correctly

• Gravitational force

(b) 1 Name the physical quantity correctly

• Gravitational acceleration / acceleration due to

gravit!

(c)(i) 1

Tick the correct answer

• "nc#anged

(ii)1

State the reason correctly

• Ma$$ doe$ not in%uence t#e gravitational

acceleration!

TOT &

'(a) 1 Name the type of lens correctly

• onve len$

(b)1

'

State the function correctly

• To *agnif t#e i*age

State the object distance correctly

• Ob+ect di$tance i$ le$$ t#an focal lengt# of t#e

len$

(c)

1

Show the calculation correctly

•

1

f =1

u +1

v

•

1

v=1

f −

1

u



'•

1

v= 1

10−

1

15

• v=30 cm

TOT ,

-(a)1

State the physical quantity correctly

• #$%&e$ current

(b)1


• T#ere i$ cutting / c#anging of *agnetic %u!

(c) 1 Name the physics concept correctly

• Electro*agnetic induction!

(d)(i)

(ii)

1

'

Mark the direction of current ow correctly !raw the deection of the pointer correctly

(e)1

State the answer correctly"

• .e%ect in oo$ite direction // to t#e left!

TOT 0

&(a)

1

Name the type of connection # correctly

• arallel !

(b)

1'

State the readin$ of the ammeter correctly

• A1 2 1!3 A

• A - 2 3!, A

(c)

1'

Show the calculation correctly 4 25R 2 3!, - 2 1!, 4

(d)

1'

!raw the circuit correctly



TOT 6

,(a)1

Name the instrument correctly.

• Aneroid barometer.

(b)1

Compare the altitudes correctly

• M is lower altitudes than N

(c)(i) 1

Compare the volume of vacuum chambercorrectly

• T#e volu*e of vacuu* c#a*ber in .iagra* ,!-

i$ greater t#an in .iagra* ,!'!

(ii)

1

Compare the atmospheric pressure exerted atM and N correctly

• T#e at*o$#eric re$$ure at M i$ greater t#an

at N!

(iii)

1

State the relationship between the altitude and the volume of the chamber correctly

• T#e #ig#er t#e altitude t#e larger t#e volu*e of

t#e c#a*ber!

(iv)

1

State the relationship between theatmospheric pressure and the volume of thechamber correctly

• T#e greater t#e at*o$#eric re$$ure eerted

t#e $*aller t#e volu*e of t#e c#a*ber!

(d) 1

'

Explain the reason correctly • Rate of colli$ion b air *olecule$ acting on

vacuu* c#a*ber i$ #ig#er!

• 7ig#er force cau$e$ volu*e of vacuu*

c#a*ber to decrea$e!

TOT 8

0(a)1

State the meanin$ correctly"

•

A diode i$ a electronic device 9#ic# allo9$current to %o9 in one direction '#)*

(b)(i)1

%ompare the movement of char$e carrier correctly

• Electron in diagra* 0!1 *ove to9ard$ :te



$e*iconductor; electron in diagra* 0!' *ove

a9a fro* :te $e*iconductor!//

• Electron in diagra* 0!1 *ove to t#e left;

electron in diagra* 0!' *ove to t#e rig#t!

(ii)1

%ompare the connection of n&type to the terminals of the cell correctly

• 5n .iagra* 0!1; n:te i$ connected to t#enegative ter*inal of t#e cell!

• 5n .iagra* 0!'; n:te i$ connected to t#e

o$itive ter*inal of t#e cell!

(iii) 1 %ompare the depletion layer correctly

• .eletion laer in .iagra* 0!1 i$ t#inner t#an

in .iagra* 0!'// vice:ver$a

(iv) 1 State the relationship between connection ofterminal and the depletion layer correctly

• W#en t#e n:te $e*iconductor i$ connected to

t#e negative ter*inal of dr cell; t#e deletion

laer beco*e$ t#inner!//

• W#en t#e n:te $e*iconductor i$ connected to

t#e o$itive ter*inal of dr cell; t#e deletion

laer beco*e$ t#ic<er!

(c)1

State the connection name correctly"

• =or9ard bia$!

(d)(i) 1 Name the device correctly

• Tran$i$tor

(ii) 1 State the function of the device correctly"

• urrent a*li>er // A%t'+at,& $9itc#

TOTA?

8

6(a)

(i) 1

State the meanin$ correctly"

• A for* of energ!• A for* of energ t#at %o9$ fro* #ot to cold

bod!

(ii)

1

'

'(plain the reason by makin$ the relationshipbetween mass and heat transferred correctly"

• ?arge *a$$ of #ot 9ater #a$ large #eat

caacit// tran$fer large a*ount of #eat!

• Reduce ti*e to coo< t#e noodle

(b)1

Show the calculation correctly"7eat ab$orbed b cold 9ater 2 #eat relea$ed b #ot9ater

*1 c (θ : θ1) 2 *' c (θ' : θ)



'

• ' (θ : -3) 2 @ (@, :θ)

State the correct answer and unit"

• θ 2 8-!18o

(c)(i)

1'

-

Show the calculationS'- &''.er P

t2 *cθ

• (183)(13 03) 2 (') c (03)

• 2@33 <g:1 o:1

S'- &''.er /

• (63)(1, 03) 2 (') c (03)

• 2 ,', <g:1 o:1

(ii)1

'

State the answer correctly

• Slo9 coo<er /cera*ic


• 7ig# $eci>c #eat caacit

TOT 13

8(a)1

State the meanin$ correctly

• Radioactivit i$ t#e $ontaneou$ di$integration

of un$table nucleu$ to beco*e *ore $table b

e*i$$ion of energetic article$ or #oton$ /

radiation!

(b)(i) 1

'

)rite the equation correctly

• HeThU

4

2

234

90

238

92 +→

(ii)1'

1

State the answer correctly

• roton and neutron decrea$e$


• To beco*e *ore $table//

• Relea$e #eliu* 9#ic# #a$ ' neutron and '

roton a9u

(c)(i)

1

Show on the $raph how to determine half life for #*+and ,

(i)1

State the answer and unit for radioactive # correctly



• 1 ear

(ii) State the answer and unit for radioactive + correctly

• ' ear$

(iii)1'

State the answer and unit for radioactive , correctly

• 1!', ear$

(d)(i) 1

'

State the most suitable source correctly • Radioactive B

(ii)1'

State the reasons correctly

• 5t #a$ long #alf life

• 5t #a$ *ediu* enetrating o9er!

TOT 11

PAPER 2 (SECT!N B"

N!*

ANSWER MARK

@ (a) State the meaning correctly 5*age t#at can be for*ed on t#e $creen! 1

(b) Compare the focal length correctly ;

T#e focal lengt# in diagra* @!1 i$ longer t#an in

diagra* @!'!// vice ver$a

1

Compare the curvature correctly ; T#e *irror in diagra* @!' #a$ a greater curvature t#an

in diagra* @!1!//

T#e *irror in diagra* @!' curve *ore t#an in diagra*

@!1!//

'

Compare the height of image correctly ;

T#e #eig#t of i*age in diagra* @!1 i$ #ig#er / greater

t#an in diagra* @!'!

-

Relate the height of image and focal length

correctly.

T#e longer t#e focal lengt#; t#e #ig#er t#e i*age!

1

Relate the height of image and curvature correctly.

T#e greater t#e curvature; t#e $*aller t#e i*age! '

(c) Explain the answer correctly

Tran$*itter fro* t#e $#i tran$*it ultra$onic $ignal to

t#e $ea!

"ltra$onic $ignal re%ected fro* t#e $un<en ob+ect!

Receiver on t#e $#i cature $ignal!

1

'-&

Ma &



.ata di$laed on RO i$ u$ed to calculate t#e di$tance

of $un<en ob+ect

C u$ing for*ula $ 2vt

2

(d) State the modication and the ustication correctly.

Modi>cation Elanation

"$e concave $#ae 1 arallel lig#t ra$ 9ill beconverge to focal oint

'

S#in $urface/ $ilver

$urface/ alu*iniu*

- Re%ector of lig#t // #eat &

Wider dia*eter/$urface

area

, To collect *ore lig#t or

#eat

0

"$e $un trac<er 6 To detect t#e o$ition of

t#e $un for *ai*u*eo$ure

8

7ig# o$ition @ To *ai*iDe t#e a*ount

of $unlig#t collected!

13

?o9 rate of ru$ting ?ong la$ting!

N!*

ANSWER MARK

13 (a) State the meaning correctly nu*ber of co*lete o$cillation /9ave$ in one $econd! 1

(b) Compare the fre!uency correctly ;

freuenc of $ound 9ave$ in diagra* 13!1 i$ #ig#er

t#an in diagra* 13!'!

1

Compare the distance between the two loud

spea"ers correctly

t#e di$tance bet9een t#e t9o loud $ea<er$ in diagra*

13!1 and diagra* 13!' are t#e $a*e!

'

Compare the distance between the twoconsecutive loud sounds correctly

t#e di$tance bet9een t#e t9o con$ecutive loud $ound$

in diagra* 13!1 i$ $#orter t#an in diagra* 13!'!

-

Relate the wavelength of the sound waves and

distance between the two consecutive loud sounds

correctly

W#en t#e 9avelengt# increa$e$; t#e di$tance bet9een

t9o con$ecutive loud $ound increa$e$!// vice ver$a t#e $#orter t#e 9avelengt# of t#e $ound 9ave$ t#e

$#orter t#e di$tance bet9een t#e t9o con$ecutive loud

$ound$

&



Kinetic energ/

Ti*e/$

Gravitational otential energ/

Ti*e/$

Name the phenomenon correctly.

5nterference of $ound 9ave$ ,

(c) Explain the concept correctly

W#en t#e 9ave a$$ t#roug# t#e ga; diFraction

occur$//$reading of 9ater 9ave!

A*litude of t#e 9ave$ reduce$!

Energ i$ reduced after a$$ing t#roug# t#e ga

Carrier act a$ re%ector// re%ect #ig#t 9ave // $to$ #ig#

9ave$ fro* #itting t#e #ou$e$!

Carrier i$ #ig# to revent over%o9 of 9ater!

1

'

-

&

,

(d) State the modication and the ustication correctly.

Modi>cation Elanation

"$e vibrator 9it# con$tant

freuenc

1 To create t#e continuou$

9ave$

'

ut barrier 9it# ga -

.iFraction 9ill create$9ave$ 9it# $*allera*litude$

&

7ave #ig# $eed 9ater

$ource

, reate #ig# a*litude

9ave$ for $ur>ng

0

.iFerent det# 6 Wave$ of diFerent $eed 8

%oat$ @ to $ave fro* dro9ning 13

$oft barrier around t#e ool to ab$orb fa$t *oving9ave//re%ected 9ave$

7ave ' ga$ in barrier to create t#e interference

of 9ave$!

T!TA 20

11 (a) State the meaning correctly =orce i$ an agent t#at can c#ange t#e $#ae; $tate of

*otion and direction of an ob+ect!

1

(b)(i) Explain the reason correctly 5n .iagra* 11!1; 9eig#t of t#e load i$ eual to t#e

ten$ion of t#e roe//force$ are in euilibriu*! 5n .iagra* 11!'; 9eig#t of t#e load i$ greater t#an t#e

ten$ion of t#e roe!

1

'

(ii) State the energy changes correctly ra,tat,'#a otential energ Kinetic

energ!

1

'

-



(c)(i) Calculate the tension of the rope! W 2 1,3 N

T 2150

cos15

2 1,,!'@ N

1'-

(ii) State the answer correctly No &

(d) State the suitable characteristics and the usticationcorrectly.

characteristics Explanation

Seat cover =abric 1 ooler / able to ab$orb

$9eat

'

Seat ba$e >bre - Strong /doe$ not brea<

ea$il

&

Seat belt 9ide , Eert le$$ re$$ure on

bab

0

ar $eat fa$tened facing

t#e rear

6 #ildren are not eo$ed

to danger fro* bro<engla$$ or %ing iece$ of debri$

8

State the suitable car correctly

M

@ State the reasoncorrectly

Cecau$e it u$e fabric;

9ide $eat belt; #ave >breba$e and face$ rear!

13

#$#%& C'' ( )* mar"s

1' (a)(i) State the answer correctly Tran$for*er i$ a $te do9n tran$for*er!

Nu*ber of turn$ of $econdar coil i$ le$$ t#an t#enu*ber of turn$ of t#e ri*ar coil!

1

'

(ii) Explain how a transformer wor"s.

A %o9$ in t#e ri*ar coil

Soft iron core i$ *agnetiDed 9it# c#anging *agnetic

%u! Soft iron core lin<$ t#e c#anging of *agnetic %u

fro* ri*ar coil to $econdar coil

T#ere i$ cutting of *agnetic %u 5nduced e!*!f! / induced current i$ roduced in t#e

$econdar coil!

1'-&



(b)(i) Show the calculation correctly.

Vp

Vs =

Np

Ns

4$ 2 Vp

Np N$

22000

500 '&3

2 03 4

1

'

Show the calculation correctly.

45 2 4$5$

5$ 2240

60 '

2 8 A

1

'

(c) State the suitable characteristics and the usticationcorrectly.

Characteristics Explanation

Material of t#e blade >bre

gla$$

1 ?ig#ter/ea$ to rotate! '

S#ae of blade

aerodna*ic

- ?o9 air re$i$tance &

Te of generator A ,

Able to c#ange voltage /otential diFerence 0

7eig#t of 9ind turbine

#ig# o$ition

6 5ncrea$e t#e rotation of

blade ; not bloc< bbuilding$

8

State the suitable wavecorrectly

R

@ State the reasoncorrectly

=ibre gla$$; aerodna*ic;

A generator and #ig#o$ition!

13

#$#%& C') ( )* mar"s

PAPER 3 (SECT!N A"

NO! %NS+ER MARK 1 (a)

(i)

State the manipulated variable correctly.

?engt# of 9ire ;l1

(ii) State the responding variable correctly.

Angle of de%ection; ∆θ1

(iii) State the xed variable correctly. 1



.ia*eter of 9ire// *a$$ of load//lengt# of cut A fro*

t#e centre of $tra9!

(b)(i)

Record the reading of θ correctly

.iagra* anglediagra*

1!-

@8o

diagra*1!&

130o

diagra*1!,

11&o

diagra*1!0

1''o

diagra*1!6

1-3o

1

'

(ii) Calculate the reading of ∆θ correctly

.iagra* ∆θ

diagra*1!-

8o

diagra*1!&

10o

diagra*1!,

'&o

diagra*1!0

-'o

diagra*

1!6

&3o

(c) #abulate l, θ , and ∆θ correctly

-.cm/ θ(o) ∆θ(o)

13!3 @8 8'3!3 130 10-3!3 11& '&&3!3 1'' -',3!3 1-3 &3

Write all t#e variable$ correctl!State t#e correct unitAll value$ of are con$i$tent 9it#out d!!

1'-

(d) -raw the graph of against correctly

?abel :ai$ ∆θ and :ai$ l

?abel correct unit for :ai$ and :ai$

Cot# ae$ 9it# an even and unifor* $cale

, coordinate$ correctl lotted

-:& coordinate$ correctl lotted!

A $*oot# be$t $traig#t line Mini*u* $iDe of t#e gra# i$ 13 c* 13 c*

1'-&,

(e) State the relationship correctly 1

5 √ → 2 marks

3-4 √ → 1 mark

0-2 √ → 0 mark

5 √ → 2 marks

3-4 √ → 1 mark

0-2 √ → 0 mark

7 √ → 5 marks

6 √ → 4 marks

4-5 √ → 3 marks

2-3 √ → 2 marks

1 √ → 1 mark



∆θ i$ directl roortional to l

T!TA 16

' (a)(i)

State the relationship correctly

# i$ directl roortional to 7 1

(ii) State the value of h when ('*.* cm S#o9 on t#e gra#

# 2 6!, c*

1

'

(iii) State the value of when h(/*.* cm S#o9 on t#e gra#

7 2 0,!3 c*

(b) Calculate the gradient correctly .ra9 t#e triangle H 8 c* 8 c*

orrect $ub$titution

e!g !)06!

)00!m

−

−

=

State t#e an$9er 9it# unit

*2 3!60@ range ( 3!60@:3!66,)

1

'

-

(c) Calculate the refractive index correctly

• n 2 7/#

• 2 1/*

• 21/3!60@

• N: 1!-33

1

'

State the precaution correctly ee$ *u$t be ere#$,&%ar to t#e $cale of

$to9atc# to avoid araa error! Reeat t#e eeri*ent & ti*e$ and calculate t#e

aerae for *ore a&&%rate re$ult$!

1



PAPER 3 (SECT!N B"3 "ubri# mar$

!a)

State the suitable inference correctly

%olume o& tra''ed air de'ends on its tem'erature

(

!b)

State the hypothesis correctly

• The hiher the tem'erature the bier the *olume o& tra''ed air

(

!#)!i)

State the aim of experiment correctly

• To in*estiate the relationshi' between *olume and tem'erature o&

tra''ed air

(

!ii)

State the variables correctly 2

Mani'ulati*e + Tem'erature o& tra''ed air

"es'onsi*e + *olume o& tra''ed air !lenth o& air tra''ed)

State the fixed variables correctly

• ,ressure o& tra''ed air -- mass o& air

3

!iii) List the apparatus correctly

tri'od bea$er thermometer /ourdon aue /unsen burner rubber tube

4

!i*) Arrangement of the apparatus

!*) State the procedure including the way to control the manipulated variables

correctly

ater is heated and stirred until the tem'erature is 20o1.

6

State the procedure including the way to measure the responding

variables correctly

The 'ressure o& tra''ed air is measure b usin the /ourdon aue.

"e#ord the readin o& 'ressure in a table.

State the repetition of the procedure to obtain a set of data

The abo*e 'ro#edure is re'eated &or a tem'eratures 5 40 o1 60 o180 o1 and

(00 o1

8

!*i)

Draw a table at least consist of 2 column with complete labelled

Tem'erature-o1 %olume o& air tra''ed- #m3

20

40

60

9



volu*e( c*-)

Te*erature(o)

80

(00

!*ii) Draw the axes of y and x with label (0

TTAL (2

&! (a) State the inference correctly

• T#e $eed of t#e $lide deend$ on t#e lengt# of 9ire 1

(b) State the hypothesis correctly

• T#e greater t#e current; t#e greater t#e di$lace*ent of

t#e rod

• T#e greater t#e current t#e greater t#e force!

1

(c)(i) State the aim of the experiment

•

To deter*ine t#e relation$#i bet9een current anddi$lace*ent of t#e rod! 1

(ii) State the variable correctly

• M4: current

• R4 I di$lace*ent of t#e rod!(force i$ $#o9n b

di$lace*ent of rod

• 4 I $trengt# of t#e *agnet//nu*ber of *agnet

'

-

(iii) State the apparatus correctly

• .c o9er $ul; *agnet bar; :$#aed $oft iron core;

r#eo$tat; $9itc# connecting 9ire$ and *eter rule!

&

(iv) Show the arrangement of apparatus correctly ,



urrent; 5 (A)

.i$lace*ent; $ (c*)

(v) State the procedure of controlling the M0

• Set t#e aaratu$ a$ $#o9n in t#e diagra* T#e $9itc# i$ $9itc#ed on! T#e r#eo$tat i$ ad+u$ted toobtain t#e current 3!, A!

State the procedure of ta"ing the reading of R0

• Mea$ure t#e di$lace*ent of t#e rod b u$ing a ruler!Record t#e reading in a table!

State the repeating the procedure of ta"ing thereading of M0

• Reeat t#e eeri*ent 9it# value$ of current; 52 1!3 A;

1!, A; '!3 A and '!, A

0

6

8

(vi) #abulate the data

urrent; 5 (A) .i$lace*ent; $ (c*)3!,1!31!,'!3'!,

@

(v) -raw the graph

13

TOTA? 1'

Documents

Answer chemistry Trial Mara 2014