paper 2 awal tahun 2011 f5

8/6/2019 Paper 2 Awal Tahun 2011 f5

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4531/2Fizik Kertas 2 MAC 20112 Jam

SEKOLAH MENENGAH SAINS TUANKU SYED PUTRAKANGAR, PERLIS

PEPERIKSAAN AWAL TAHUN 2011TINGKATAN 5

FIZIK

KERTAS 2Dua jam tiga puluh minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU.

Untuk Kegunaan Pemeriksa

Bahagian Soalan Markah

A

1

2

3

4

5

6

7

8

B9

10

C11

12

Jumlah Besar

Kertas ini mengandungi 22 halaman bercetak

1. Tulis nama dan tingkatan anda pada ruang yang disediakan.

2. K ertas soalan ini adalah dalam dwibahasa.

3. C alon dibenarkan menjawab keseluruhan atau sebahagian soalan sama ada dalam bahasa Inggeris atau bahasa Melayu.

4. J awapan kepada Bahagian A hendaklah ditulis dalamruang yang disediakan dalam kertas soalan.

5. Rajah tidak dilukis mengikut skala kecuali dinyatakan.

6. Markah maksimum yang diperuntukkan ditunjukkandalam kurungan pada hujung tiap-tiap soalan atau

7 . P enggunaan kalkulator saintifik yang tidak bolehdiprogramkan adalah dibenarkan.


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The fo llowi i forma tion may be usefu l. The symbo ls have their usua l mean ing.

1. a =t

v

1. v2 = 2 + 2 as

2. s = ut +21 at 2

3. Momen tum = mv

4. F = ma

5. inetic energy = mv2

6. Grav itationa l potential energy = mgh

7. Elastic potential energy =2

1Fx

8. Power, P = energytime

. =V

m

10. Pressure, p = h V g

11. Pressure, p = A F

12. Heat, Q = mcU

13. Heat, Q = m

14. P 1

1 = P 2V 2

15. V 1 = V 2 T 1 T 2

16. P 1 = P 2 T 1 T 2

17. T

P V = constant

18. n =r i

sinsin

20 n = real depthapparen t depth

21. vu f 111

!

22 . Linear magn if ication, m = v u

23 . P = 1/ f

24 . v = f P

2

. P = Dax

2 . g = 10 ms -2


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Sect io A

[60 mark s]

Answ r a ll que sti ns

1. Diagram 1 shows the graph of ve locity aga inst time for the mo tion of a car .

Diagram 1

(a) S tate the phys ical quan tity represen ted by

(i) the grad ient of the graph .

.. [1 mark ]

(ii) the area under the graph .

.. [1 mark ]

(b) Comp lete the table be low.

Section of the graph Type of mo tion of the car

OA

AB

[2 mark s]


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3 Diagram 3 1 shows a pendulum bob of mass 0 6 kg is hung on the eiling

Diagram 3.1

a) In the diagram 3 1, mark the dire tion and label the for es a ting on the

thread and the pendulum bob with label P and Q [2 marks ]

b) The thread is pulled sideway by a for e F , so that the thread makes an angleof 30 0 with the verti al line as shown in diagram 3 2

Diagram 3.2

(i) In the spa e below, draw the triangle of for es to show the three for esP , Q and F are in equilibrium

[2 marks ](ii) Cal ulate the for e F

[2 marks ]


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4. Diagram 4 shows two identical water wave pu lses mov ing towards ea ch other . Waveinterferen ce occurs when the two waves mee t at point O wh ile propaga ting a long thesame med ium.

D iagram 4

(a) Wha t is mean t by interferen ce?

.. [1 mark ]

(i) In the box above , comp lete the d iagram to show the interferen ce of waves a t point O.

[1 mark ] (ii) Name the type of interferen ce occurs in (a)( i).

.. [1 mark ]

(iii) State wha t will happen to the mo tion of the cork a t point O.

[1 mark ]

(b) (i) A r i pple tank is se t up w ith two iden tical di ppers in contact with thesurfa ce of the wa ter . The separa tion be tween the two identical di ppers5.0 cm. When the sw itch is on an interferen ce occurs . The separa tion

between two conse cutive an tinodes is 3 .0 cm. The d istance betweenthe an tinode po ints and the d i ppers is 10 .0 cm. Calculate thewave leng th of the wa ter waves produ ced.

[2 mark s]


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(ii) The separa tion of the two sour ces is increased to 8.0 cm. Wha t will happen to the d istance be tween two conse cutive an tinodes?

.. [1 mark ]

5. Diagram 5 .1 and D iagram 5 .2 show two so lid spheres A and B with differen t dens ity place in the wa ter .

Diagram 5 .1 D iagram 5 .2

(a) Wha t is mean t by dens ity?

. [ 1 mark ]

(b) Based on D iagram 5 .1 and D iagram 5 .1,

(i) compare the dens ity of sphere A and sphere B

. [ 1 mark ]

(ii) compare the we ight of sphere A and sphere B

. [ 1 mark ]

(iii) compare the we ight of wa ter d isplaced by sphere A and sphere B

.

[1

mark ] (iv) re late the we ight of sphere and the we ight of wa ter d isplaced

.

. [ 1 mark ]


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(v) re late the we ight of wa ter d isplaced and up thrus t

.

. [ 1 mark ]

(c) Name the phys ics pr inci ple involved in D iagram 5 .1 and D iagram 5 .2.

. [ 1 mark ]

(d) S tate one app lication of phys ics pr inci ple in 5 ( c).

. [ 1 mark ]

6. Diagram 6 .1 and 6 .2 shows an exper imen t to de term ine the wave length of mono chroma tic light waves . Diagram 6 .1 used a b lue light sour ce and D iagram 6 .2 used a red light sour ce.

Bl ue f r in ge P in gg ir bir u


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The separa tion be tween two s lits, a, and the d istance be tween the doub le s lit and thescreen, D, in bo th d iagrams are constant. The dark and br ight fr inges are produ cedaf ter the light passes through the s lit.

(a). Wha t is mean t by mono chroma tic light?

.[1 mark ]

(b) Compare the wave length of red light and b lue light. Tick ( ) the corre ct answer in the box prov ided.

Wave leng th of red light > wave length of b lue light

Wave leng th of red light < wave length of b lue light

Wave leng th of red light = wave leng th of b lue light

[ 1 mark]

screen skr in

Red fr inge P in gg ir mer ah


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(c) Base on the pa ttern of fr inges formed on the s creen in D iagram 6 .1 andDiagram 6 .2, s tate tw o observa tions abou t the d istance be tween conse cutivefr inges for red and b lue light.

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

........................................................................................................................ [2 mark ]

(d) S tate the re lationsh i p be tween the wave length and the d istance be tweenconse cutive br ight fr inges in this exper imen t.

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

......................................................................................................................... [1 mark ]

(e) ( i) Wha t happen to the d istance be tween two conse cutive br ight fr inges if the separa tion be tween two s lits is increased? .

...................................................................................................... ...... [1 mark ]

(ii) Give a reason for your answer in (e) ( i). Ber ik an s ebab ba g i jawa pan anda d i ( e) ( i ).

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

.................................................................................. .......................... [1 mark ]

(f) State a wave phenomenon wh ich occurs in this exper imen t.

........

........ [2 marks ]


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7 Diagram 7 shows a tyre of a ar that is going to be used to travel from Kuala Lumpur to Kuala Terengganu

Diagram 7

(a) After the long journey,

(i) what happen to the temperature of the air in the tyre

[1 mark ]

(ii) state o ne other physi al quantity that will also hange

[1 mark ]

( b) Based on the answers in (a) (i) and (a) (ii), name the gas law involve

[1mark ]

) Before a long journey, the driver he ked the air pressure of his ar tyres Theair pressure of the tyres was 200 kPa at a temperature 27 rC. After the journey,the air pressure of the tyres was found to have in reased to 230 kPa . What isthe temperature of the air in the tyre after the journey? [Assume the volume of the tyre is onstant]

[3 marks ] (d) The tyre in Diagram 7 is not suitable to be used on a muddy road . Suggest

modifi ations to be done based on the hara teristi s given .

(i) Surfa e area of the tyre

.. [1 mark]


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20

40

60

80

100

2 4 6 8 10 12

120

P

Q

R

Extens ion / cm

For ce / N

0

(ii) Reason

.. [1 mark ]

(iii) The track of the tyre

.. [1 mark ]

(iv) Reason

.. [1 mark ]

8 Diagram 8 shows the graph of for ce aga inst extens ion for three spr ings P, Q and R .

Diagram 8


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(a) ( i) A law s tates that the ex tens ion of a spr ing is d irectly propor tiona l to thefor ce app lied if the e lastic limit of the spr ing is no t exceeded . Name this law.

................................................................................................................. ..... [1 mark ]

(ii) On the graph in D iagram 8, mark ' X ' at the e lastic limit for ea ch spr ing. [2 mark s]

(b) The spr ing s tores energy when it is ex tended . (i) Name the energy s tored in the spr ing when it is ex tended .

...................................................................................................................... [1 mark ]

(ii) Ca lculate the energy s tored in spr ing R when its ex tension is 8 .0 cm.

[3 mark s]

(c) The spr ings are to be used in a Newton ba lance to measure a max imum load of mass 8 kg . (i) Wha t is the max imum we ight of the load?

...................................................................................................................... [1 mark ]

(ii) Based on D iagram 8, choose two spr ings wh ich are su itab le to be used in the Newton ba lance spe cif ied above .

...................................................................................................................... [2 mark s]

(iii) Wh ich spr ing is the mos t suitable to be used in the Newton ba lance? Explainyour answer .

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

.......................................... ............................................................................ [2 mark s]


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Bahagian B[ 20 marks ]

Answer any o ne question from this se tion .

9 (a) Diagram 9.1 and Diagram 9.2 show two argo ships sailing on the o ean .

Cargo ship A Cargo ship B

Diagram 9.1 Diagram 9.2

(i) What is meant by buoyant for e?[1 mark]

(ii) Using Diagram 9.1 and 9.2, ompare the water levels of the argo shipand the volumes of water displa ed by the ships . R elate the mass of the argo with its load, the volume of water displa ed and buoyant for e .

[5 marks](iii) Name and state the physi s prin ipal that explains the above situation .

[2 marks]

( b) Diagram9.3 shows a hydrometer .

Diagram 9.3


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A hydrometer is used to measure density of liquid . Explain how a hydrometer fun tions .

[2 marks]

(c) Diagram 9.4 shows a model of an oil tanker .

Diagram 9.4

Using appropriate physi cs concept, make suggestions of ways to modify thetanker base on the following aspe cts:

(i) Capa city(ii) Safety features(iii) Power (iv) Stability and other relevant aspe cts.

[10 marks]

10 A group of students are walking in front of two loudspeakers conne cted to a signalgenerator . They stop when they hear the loudest sound . The positions of the studentswhen they stop are shown in Diagram 10 .1.

Diagram 9.1


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Two d i ppers conne cted to a v i bra tor are v i bra ting s imultaneous ly on the wa ter surfa ceof a r i pple tank . The wa ter wave pa ttern produ ced is shown in D iagram 10 .2. Wave leng th of the wa ter waves , can be de termined by the formu la as fo llows :

=

Diagram 10 .2

(a) (i) Wha t is the def inition of waves?[1 mark ]

(ii) Wha t do you observe abou t the sour ces of the waves, the pos itions of thestuden ts and the waves pa tterns in D iagram 10 .1 and D iagram 10 .2?

Use these observa tions to dedu ce a phys ics concept and s tate the concept. [5 marks ]

(b) Base on the interferen ce of wa ter waves shown in D iagram 10 .2, draw theinterferen ce pattern.

Your draw ing shou ld include the fo llowing aspe cts:

(i) the cres t and trough of the waves( ii ) a

(iii)

x (iv) D[4 marks ]


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(c) Diagram 10 .3 shows the new ha ll in Seko lah Menengah Kebangsaan Sunga i Perak . A mus ical concer t will be he ld a t the ha ll in a few mon ths time.

Diagram 10 .3

Observe D iagram 10 .3 carefu lly, there are some improvemen ts can be made to

enhan ce the sound effe ct. Using appropr iate phys ics concepts, exp lain the use of su itable equ i pmen t andfurn ishings to improve the sound effe ct of the concer t.

Your answer shou ld include the fo llowing aspe cts:

(i) Distance be tween of two s tereo speakers(ii) Pos itioning of speakers and m icrophones(iii) Furn ishings of the ha ll and o ther aspe cts

[10 marks ]

Speaker P embe sa r suar a

Microphones M ikro f on

Stage P ent as


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Bahagian C[ 20 marks ]

Answer any o ne question from this se ction .

11 . Diagram 11 .1 shows a thermometer use by a do ctor to check the temperature of patients body during medi cal treatment .

Diagram 11 .1

(a) What is meant by temperature?[ 1 mark ]

( b) According to the prin ciple of thermal equilibrium and the working prin ciple of a thermometer, explain how a do ctor can check his patient temperature duringmedi cal treatment .

[ 4 mark ]

(c) Diagram 11 .2 shows an i ce cream container usedby an i ce cream seller usinghis motor cycle.

ice cream


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Diagram 11 .2

Tab le 11 .3 shows the spe cif ication of four types of ice cream containers P, Q, R andS, that can be used by an ice cream se ller to carry ice cream .

Box P Q R SSpec ific he a t c ap acity of ice

cr eam box High High Low Low

Si e of ice c r eam box Large Sma ll Sma ll Large

M a te r ia l of o te r box Copper PVC p lastic PVC p lastic Alum inium

C olo r of o te r box Dark Br ight Br ight Dark

Tab le 11 .3

You are requ ired to de termine the mos t suitab le ice cream container to carry icecream . Study the spe cif ication of the four types of ice cream container based on thefollowing aspe cts:

- Spe cif ic heat capa city of ice cream box

- S ize of ice cream box

- Mater ial of ou ter box

- Co lour of ou ter box

Explain the su itability of the aspe cts[10 marks ]

Ice crea m Ais kri m

Ice cubeKiub ais

Outer box Kotak luar

Ice crea m box Kotak ais kri m


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(d) A solid substan ce, of mass 0 .05 kg, is heated using an immersion heater of 240 V, 0 .1 kW . Diagram 11 .4 shows the heating curve of the solid .

Diagram 11 .4Calculate(i) The spe cific latent heat of fusion of the substan ce(ii) The spe cific heat capa city of the substan ce in liquid state

[ 5 marks ]

12 . Diagram 12 .1 shows air is blown steadily between two papers .

Temperature / rC

Time / min0 1 .0 3 .6 4 .8

218

78

30


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(a) (i) Wha t is the mean ing of pressure ?[1 mark ]

(iii) Draw the shape of the papers when a ir is b lown be tween them[1 mark ]

(b) The d istance be tween the paper is made w ider . The a ir is still blown s tead ily

between the two papers

Wha t is the effe ct on

(i) the speed and the pressure of a ir be tween the two papers[2 marks ]

(ii) the shape of the paper [1 mark ]

(c) Diagram 12 .2 shows a mo tor cycle and a bus speed ing on a h ighway track .

(i) Wha t is the mean ing of speed?[1 mark ]

(ii) Des cr i be the poss i biliti es of the movemen t of bo th veh icl es when theyare speed ing s ide by s ide. Explain your answer .

[4 marks ]


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(d) A new a ir craf t is des igned to f it the purpose of transpor ting passengers andcommer cial goods . Four mode ls for the sugges ted a ir craf t are g ivenTab le 12 shows the s tructure and the fea tures of the chara cter istic s of theair craf ts.

Air cra f tm o el

Air cra f t w i g E gi ecap acity

Air cra f tf ans

C arg o space

W Low

Largenumber

of blades

Sma ller

X Low

Sma ll number

of blades

Sma ller

Y High

Largenumber

of blades

Larger

Z High

Sma ll number

of blades

Larger

Tab le 12

Explain the bes t shape of the a ir craf t mode l and the su itability of ea chchara cter istic in Tab le 12 . Determ ine the mos t suitable a ir craf t mode l to be used .

Give reasons for your choice. [10 marks ]

E D OF QU EST ON PAP E R

paper 2 awal tahun 2011 f5

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