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4531/1 NAMAFizik Kertas 1SOLAF2011 TINGKATAN

jam4

11

JABATAN PELAJA AN PE AK ______________________ _____________

SOLAF

SET 2

SIJIL PELAJA AN MALA!SIA 2011

FI"IK

Kertas 2Dua jam 30 minit

JANGAN B#KA KE TAS INI SE$INGGA %IBE ITA$#

Kertas s&a'a( i(i )e(*a(+,(*i 21 -a'a)a( .er etak


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S#LIT 4531/1

The following information may be useful. The symbols have their usual meaning.

4531/1 S#LIT2

20. n = real de tha arent de th

21. vu f

111+=

22. !inear magnifi"ation# m = v u

23. P = 1/ f

24. v = f

25. $ Dax

26. Q $ It

27. E = VQ

28. V = IR

29. E = V + Ir

30. %ower# P = VI

31. P

P

V V

! !

=

32 . &ffi"ien"y $ P P

V I

V I ' 100(

33. "V = # mv 2

34. E = m$ 2

35. % $ 10 ms )2

1. a $t

uv

1.v2 $ u2 * 2 a&

2.

& $ ut *2

1 at 2

3. +omentum $ mv

4. ' = ma

,. Kineti" energy $ # mv 2

-. ravitational otential energy $ m%(

/. &lasti" otential energy $ 21

'. %ower# P $ energy

time

. $V m

10. %ressure# ) =( %

11. %ressure# ) = * '

12. eat# 5 $ m$

13. eat# 5 $ m

14. P 1V 1 = P 2V 2

1,.

V 1 = V 2

T 1 T 2

1-. P 1 = P 2

T 1 T 2

1/.,

PV $ "onstant


3/28

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Se ti&( A660 mar &7

*n& "r a'' u"&t- n&

1 Diagram 1.1 shows a li8uid)in)glass thermometer.

%ia*ra) 1 1

9a: 9i: ;ame the li8uid % used in the thermometer.

.................................................................................................................61 mar 7

9ii:

........................................................................................................................61 mar 7

9ii:


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S#LIT 4531/1

2 Diagram 2 shows a "ar and a lorry whi"h has different mass a roa"hing a ?ebra "rossingwith same velo"ity 1, m s )1.

.

%ia*ra) 2=hen the driver in the vehi"les saw


5/28

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3 Diagram 3 shows the hydrauli" um whi"h is used to lift a "ar in a wor@sho .

%ia*ra) 3

9a: 9i: ;ame the rin"i le of hysi"s used in the hydrauli" um above.

_____________________________________________________ 61 mar 7

9ii:

61 mar 79ii: =hat ha ened to the osition of the iston if the "ar is re la"ed with a lorry of

bigger mass> _____________________________________________________________

61 mar 7

9":


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9d: ;ame another a li"ation for the rin"i le of hysi"s in 9a:9i:.

_________________________________________________________________ 61 mar 7

4 Diagram 4.1 and Diagram 4.2 show two ty e of blo"@s# and < being heated ,0 = immersion

heater for - minutes. Table 4 shows information related to metal blo"@s# and


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S#LIT 4531/1

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

61 mar 7

9d: Base on the information in Table 4#

9i: "om are the rise in tem erature of metal blo"@ and metal blo"@

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

A..

61 mar 7

9b: Gbserve Diagram ,.1 and ,.2.9i: Eom are the de ths of the water in region H and I.

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AAAAAAAAAAAAAAAAAAAAAAAAAAA..

61 mar 7

9ii: Eom are the wavelengths of the waves in region H and I.

AAAAAAAAAAAAAAAAAAAAAAAAAAAAA..

61 mar 79iii: elate the de th of water to the wavelength of the waves.

AAAAAAAAAAAAAAAAAAAAAAAAAAAAA..

61 mar 7

9iv: ;ame the wave henomenon involved.

AAAAAAAAAAAAAAAAAAAAAAAAAAAA..

61 mar 7

9": &' lain why the wave front of sea water will follow the sha e of the shore when it

a roa"hes the shore.




63 mar &7

- Diagram -.1 shows an image seen through a lens.

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S#LIT 4531/1

%ia*ra) 1(a) Name the light phenomenon involved in Diagram 6.1

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

61 mar 7

(b) On Diagram 6.2 draw a ray diagram to show how the image in Diagram 6.1 isformed.

Diagram 6.2

63 mar &7

(c) The focal length of the lens in Diagram 6.2 is f .eferring to f, s!ggest a s!itable position to place the ob"ect to prod!ce an

inverted image.........................................................................................................................................................

61 mar 7

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(d) #n eyepiece of focal length f e $ % cm and an ob"ective lens are !sed to b!ild a

simple astronomical telescope. The ob"ective lens is chosen from Table 6.1.

&ens 'ocal length of lensf o (cm)

agni cation m $ f o

f e

Diameter of the

ob"ective lens

(cm)

* 1+ 2.%

, 1+ %.+

-+ 2.%

-+ %.+

Table 6.1

(i) /omplete table 6.1 by writing down the val!es of m for every lens.

62 mar &7

(ii) /hoose the two lenses that prod!ce the largest image...........................................................................................................

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

61 mar 7/ Diagram /.1 shows a "loud "hamber used to dete"t radioa"tive emission of a sour"e.

%ia*ra) 1

9a: =hat is the meaning of radioa"tive emission>

____________________________________________________________________________

61 mar 7

9b: Draw the tra"@s in the "loud "hamber if the radioa"tive sour"e is

4531/1 S#LIT10


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S#LIT 4531/1

9i: ) arti"le 9ii: ) arti"le 9iii: ) arti"le

63 mar &7

9": J do"tor "ondu"ts an investigation on a atient s @idney by inje"ting gamma ray sour"e of

radioa"tive li8uid into the blood "ir"ulation.

The half life of the radioa"tive sour"e used is days. J normal @idney "an e' el all the

radioa"tive substan"e in 20 minutes.

Diagram /.2 shows the radioa"tivity of the atient s @idneys "hanges with time.

%ia*ra) 2

9i: Based on Diagram /.2# whi"h @idney is not fun"tioning ro erly>

______________________________________________________________________

61 mar 7

9ii: ive one reason for your answer in 9":9i:. ______________________________________________________________________

4531/1 S#LIT11


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61 mar 7

9iii: =hy is gamma ray sour"e of radioa"tive substan"e more suitable to be used in this

"ase>

______________________________________________________________________

61 mar 79iv: The half L life of the radioa"tive sour"e used must not be too short. &' lain why.

______________________________________________________________________

61 mar 7

9v: The initial radioa"tivity of the substan"e is ' 10 , "ounts er se"ond. =hat is the

radioa"tivity of the substan"e after 32 days>

62 mar &7

9a: Diagram .1 shows a relay used in an ele"tri"al "ir"uit.

%ia*ra) 1

9i: =hat is the fun"tion of a relay>

AAAAAAAAAAAAAAAAAAA..AAAAAAAAAAAAAAAAA61 mar 7

9ii: &' lain what will ha en when an ele"tri" "urrent flow in the main "ir"uit>

AAAAAAAAAAAAAAAAAAA..

AAAAAAAAAAAAAAAAAA..


AAAAAAAAAAAAAAAAAA..

62 mar &7

4531/1 S#LIT12


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9b: Diagram .2 shows a "ir"uit "onsists of an automati" swit"h using a relay to swit"h on a

street light at night.

%ia*ra) 2

9i: ;ame the "om onent labeled 5.

AAAAAAAAAAAAAAAAAAA..AAAAAAAAAAAAAAAAAAA

61 mar 7

9ii:


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%ia*ra) 3

The "ir"uit "onsists of vibration sensor# M# and water tem erature sensor# T# at the sea bed.

The vibration and in"rease in tem erature dete"ted will rodu"ed signals whi"h will be sent

to a logi" gate and then to the tsunami o eration dete"tor room through the transmitter.Ke s

Mibration sensor# M N =ith vibration !ogi" O1

Mibration sensor# M N =ithout vibration !ogi" O0

=ater tem erature sensor# T N igh tem erature !ogi" O1

=ater tem erature sensor# T N !ow tem erature !ogi" O0

Gut ut < N adar is a"tivated !ogi" O1

Gut ut < N adar is dea"tivated !ogi" O0

Tsunami will o""ur when there is a vibration &r "hange of high tem erature at the sea bed.

Table is a truth table whi"h shows the o eration of the logi" gate in the tsunami "ontrol

system.

6 T S0 0

0 11 01 1

Ta.'e

9i: Psing the @eys given# "om lete Table .

62 mar &7

9ii: ;ame the logi" gate in the "ir"uit in Diagram .3.


AAAAAAAAAAAAAAAAAA

61 mar 7

9iii: Cn the s a"e below# draw the logi" gate symbol in "9ii:.

4531/1 S#LIT14


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61 mar 7

Se ti&( B

620 mar &7

*n& "r an &(e u"&t- n

. 9a: Diagram .1 shows two identi"al feeding bottles floating in li8uid % and li8uid 5

res e"tively. The feeding bottle floats be"ause the net for"e a"ting on the bottle is ?ero.

%ia*ra) 7 1

9i: =hat is the meaning of net for"e> 61 mar 7

9ii: Psing Diagram .1 "om are the osition of the bottles in li8uid % and li8uid 5.

Eom are also the weights and the buoyant for"es that are a"ting on the bottles in

li8uid % and li8uid 5. Eom are the density of li8uid % and li8uid 5.

elate the osition of the bottle and the density of li8uid to dedu"e a relevant hysi"s"on"e t. 6, mar &7

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9b: Diagram .2 shows a sim le hydrauli" ja"@.

%ia*ra) 7 2

&' lain how load + "an be lifted and give a reason why the "ross se"tional area of iston J is

smaller than the "ross se"tional area of iston B. 64 mar &7

9": The sim le hydrauli" ja"@ in Diagram .2 is not suitable to use to lift a "ar in a wor@sho .

Psing suitable hysi"s "on"e ts# e' lain the re8uired modifi"ation that need to be done to

enable the ma"hine to lift a "ar easily in a wor@sho . Iou "an em ha?ise on the following

as e"ts in your modifi"ationQ9i: method so that only small for"e is a lied at iston J

9ii: "om onent to "ontrol flow of li8uid in the hydrauli" ja"@

9iii: "om onent in the hydrauli" ja"@ to lowered the "ar

9iv:


17/28

S#LIT 4531/1

(iii) 45plain the wor ing principle of a transformer. 0-

marks

(b) The national grid networ is !sed to transmit electrical energy from

power stations tocons!mers thro!gh a networ of high voltage cables.(i) 45plain why the higher voltage is transmitted thro!gh the electric in the

national gridnetwor . 02 marks

(ii) 45plain two advantages of the national grid networ in distrib!ting

electrical energy to!sers. 02 marks

(c) 'rom diagram 1+.17 (i) 45plain the modi cation that needs to be done on the transformer so that

it can step downthe mains voltage of 2-+8 to 187 287 987 -87 %87 68 or :8. !ggest three

ways to increase the e;ciency of the transformer. 06

marks

(ii) 12+ of electrical power is to be transmitted by cables which have a

total resistance of % 61 mar 7

9b: The submarine is able to submerge in the sea.

&' lain how a submarine on the sea surfa"e submerges and float still on the sea

surfa"e.

4531/1 S#LIT1/


18/28

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64 mar &7

9": Diagram 11.2 shows a shi sails on the sea surfa"e.

The shi "arries assengers and "argo.

%ia*ra) 11 2

Table 11.2 shows the s e"ifi"ations of four water"raft# % # 5 # and < that "an be used to

"arry assengers as well as "argo at high s eed.9ater ra:t $&riz&(ta' r&ss

se ti&($,'' )ateria' $,'' a.i'it E(*i(e :,e'

% ront side broad and ointed =ood Jerodynami" %etrol

5 ront side narrow and ointed Jluminium ydrodynami" Diesel

ront side broad andflat


19/28

S#LIT 4531/1

Eal"ulate

9i: The weight of the boat without load.

9ii: The ma'imum additional mass on the boat.

6, mar &7

12 Diagram 12.1 shows an audio fre8uen"y generator "onne"ted to a s ea@er and la"ed near the"orner of a wall. Three students # J #B and E are standing around the ne't "orner.

The generator and s ea@er "an rodu"e sound with the same s eed but different it"h.

%ia*ra) 12 1

a) tate the physical =!antity that a>ects the pitch of the so!nd.01 mar

b) hen a high pitch so!nd is generated7 only st!dent / can hear the so!ndclearly. &' lain this situation. 64 mar@s7

": Diagram 12.2 shows a radar system at an air ort.


20/28

S#LIT 4531/1

%ia*ra)12 2

Table 12.3 shows the s e"ifi"ations of four radar systems # K # ! # + and ; # that "an be usedto determine the osition of an aero lane.

adar system K ! + ;

Diameter of the araboli" dis" Fm10 , / 12

Distan"e of the signal re"eiver from the "entre of the araboli"

dis"


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Eal"ulate Ni: the s eed of the ultrasoni" wave in the water ii) the wavelength of the !ltrasonic wave in the water

6, mar &7

&;D G 5P&


22/28

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Se ti&( A

4531/1 S#LIT22


23/28

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1 9a: 9i: +er"ury 1m

9ii: &' ansion F in"rease in volume 1m

9b: 9i: Thermometer H 1m

9ii: The smallest division is smaller FF able to dete"t the smaller Fsmallest"hange

1m

TOTAL 4)

2 9a: 5uantity matters in a material FFJn obje"t at rest tends to remain at rest FF anobje"t in motion tends to stay in motion

1m

9b: The "ar 1m

9": +ass FF Cnertia is smaller 1m

9d: v2 $ u 2 * 2as02 $ 1, 2 * 2a93/,:a $ L 0.3 ms )2

1m1m

TOTAL 5)

3 9a: 9i: %as"al rin"i le 1m

9ii: Gil "annot be "om ressed 1m

9b: 9i: , 000 ; 1m

9ii: move downward 1m

9": in"rease diameter of the iston F use thi"@er wall "ylinder 1m

9d: hydrauli" bra@e 1m

TOTAL )

4 9a: Jmount of heat re8uired to in"rease the tem erature by 1 0E for a mass of 1 @gsubstan"e

1m

9b: 9i: %t= m" 1 000 = 1 " 20 " = 00 R@g)10E )1 1m

9ii: 1 000 = 1 " 4- " = 3 1 R@g)10E )1

1m1m

9": < e"ifi" heat "a a"ity of bigger than


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9b: 9i: The de th of water in region H is greater than in region I. 1m

9ii: The wavelength of the waves in region H is longer than that in region I. 1m

9iii: The dee er the water is# the longer the wavelength will be. 1m

9iv: efra"tion of waves 1m

9": 1. Cn the o"ean# wave fronts are straight and arallel as the wave s eed isuniform.2. =hen a wave moves towards the shore# the de th of the sea water de"reases#the velo"ity of the wave de"reases.3. efra"tion o""urs and the sea water waves are refra"ted towards the normal.This "auses wave fronts of the sea water to follow the sha e of the shore.

1m

1m

1m

TOTAL )

- 9a: efra"tion 1m

9b: 3m

9": The obje"t should be la"ed at the osition with the obje"t distan"e S f. 1m

9d: 9i:!ens o"al length of lens#

f 9"m:+agnifi"ation#

m $"

1

f f

Diameter of theobje"tive lens9"m:

% 10 2 2.,5 10 2 ,.0

40 2.,< 40 ,.0

2m

9ii: !ens and lens < rodu"e the largest image. 1m

TOTAL )

/ 9a: The emission of an energeti" arti"le or hoton during the random ands ontaneous disintegration of an unstable nu"leus to a more stable nu"leus.

1m

9b: 9i: 9ii: 9iii: 3m

4531/1 S#LIT24


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S#LIT 4531/1

9": 9i: !eft @idney 1m

9ii: J"tivity of the C)131 radioisoto e still "an be dete"ted FF does not fall after 20 minutes

1m

9iii: as high enetrating ower# "an be dete"ted easily 1m

9iv: To ma@e sure that has high enough a"tivity in the @idneys to be dete"ted. 1m

9v: ;umber of T2

1 $ 3a2&3a2&32

$ 4 00 000g 4,0 000g 22, 000g 112 ,00g 5 250 *

1m1m

T&ta' 10)

9a: 9i: Js an automati" swit"h to swit"h on the se"ond "ir"uit 1m

9ii: elay "oil will be an ele"tromagnet attra"ts soft iron armature se"ond "ir"uit will be o erated

2m

9b: 9i: !D 1m

9ii: The resistan"e of !D is low when there is light FF vi"e versa 1m

9iii: Jt night# resistan"e 5 is higher M5 higher S M be of battery C b in"rease# C" in"rease elay is swit"h on

3m

9": 9i: 2m

9ii: G ate 1m

9iii: 1m

TOTAL 12)

Se ti&( B

4531/1 S#LIT2,

M T

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