Fizik K2 Johor

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    NO K D PENC

    ENALAN

    ANCK A GILIRAN

    ,JARArI ANPELAJARAN NEGEHl JOHOH

    PEPERIKSAAN PERCUBAAN

    SIJIL PELAJAR AN MALAYSIA 2008

    Kertas 2

    September 2 8

    2 9; am Dua

    jam

    tiga puluh

    minit

    .JANGAN BUK A KEHTAS SOA1,AN IN1 SEHINGGA DIBERITA HU

    I

    l lr i ~ \ k ~ ~ n~ornborkad

    peogenalan

    c/nn

    a n g k a

    giliran rmr1(1 p(1(1(1 1run.y vang

    clr wclrukun

    4 [ . ' ~ J I ( J Y ~fihenr~rkdt~ n~rnjcnvclh

    ke.cei urrriitrrl rriuri .sehnhngicm so alnn

    . V U I J I L J rdij (/r;1~11n(I~I(J .Y(It?ggcri.s I I L J I ~

    n l/?tl~vtrM~ l ( l~ 1 l .

    . .

    Kerlas soalall ini merrgarrdurrgi 3 halarnan bercetak clan

    1

    lralanian ridak bercetak

    Kod Penieriksa

    Bahagia~i

    Markati

    I enuti

    4

    6

    7

    8

    8

    10

    12

    Soalan

    2

    3

    4

    5

    6

    7

    Markah

    Diperoleh

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    SULIT

    3

    Section

    Bahagian 4

    [6 marks]

    [6 markah]

    A n ~ w e r

    ll

    question in this secrion.

    Jmvab

    semua

    so ah n dalatn hahagian ini.

    Diagram show s a displacement time graph of the oscillation of a loaded sprin g.

    Rajah

    1

    nlenunjukkan graf sesaran masa hagi saru ayunan spring herheban.

    Displacement 1

    rn

    Stsaran

    cm

    Time s

    Masa

    s

    Diagram

    Rajah

    1

    a )

    Base on D iagram 1

    Berdusarkan Rajah,

    i)

    Label the period using the symbol 7 .

    Labelkan rempoh nrenggunakart simbol T .

    ii)

    Wh at is the period of the oscillation?

    Bera yakah tenlpoll hagi satu ayunan?

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    SLSLIT 4

    6)

    What is meant

    by

    amplitude?

    Apnkuh yang d im a h d k a n dengan amplitudl

    [

    mark1

    [

    markuh]

    c)

    If the spring is undergoing damping what will happen to the amplitude o f the

    oscillation?

    J i h spring i tu mengalami pe lembcpn apakuh yang a h erlaku kepadu

    umplitudnya?

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    SULIT

    Diagmm 2.1 shows a driver that is driving under a hot sun, sees a pool of water

    appea ring on the road ahea d, but the pool of water disappears as the ca r approach es it.

    Rajah 2.1 menunjukkan seorang pemandu yang sedang memandu pada hari yang punas

    ternampak tompokun air di hadapan, telapi tompokan uir ilu hilang apabila l~emundulu

    menghampirinya.

    Image of the cloud

    een as a pool of water

    Imej rnvan kelihatan

    seperti tompokun air

    Diagram 2.1

    Rajah

    2.1

    a )

    Na me this natural phenomenon s observed by the driver.

    Nama kan fenumena semula jadi ini.

    [

    mark]

    [ l markah]

    b )

    State the physics concept that is involved in this phenomenon.

    Nyalakan ko nse pjz ik yang ~e rlib af alam fenomena ini

    [ l

    mark]

    [ l markah]

    c ) i)

    How is the density o f the cool air compare to the density of the warm air?

    Ba nd ing km ketumpafan udara sejuk dengan udara suam.

    [ l mark]

    [ l markuh]

    ii)

    When light rays propagates from a denser medium to a less dense medium,

    state what happen to th e direction of the refracted rays.

    Apabila cahaya merambal dari medium lebih turnpat ke medium kurang

    tunrpal, apakuh yang akun berlaku kepada arah perambalun gelombang

    cahaya yang ferbias.

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    SULIT 6

    (iii)

    Complete Diagram

    2.2

    to show the formation of the natural phenomenon as

    shown in Diagram 2.1.

    Lenghphn Rajah

    2 . 2

    bagi rnenunjukkan kejadian .semula ,jadi yong

    ditunjukkan lam Rajah

    2.1.

    Light from the cloud

    Cuhaya dari awan

    Light to driver s eyes

    Cahuya ke mata pernandu

    Cool air

    ,

    ...

    ,..

    Udara panm

    / / ~ o a d

    Jalan

    Image of the cloud

    seen s a pool or .later

    Imej w a n kelihatan

    seperti fompokan air

    Diagram

    2.2

    Rajah

    2.2

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    SIJ1 IT

    7

    3

    Diagram 3.1 sho ws a cheetah chasing a dee r in a wild w orld. ( 3 i ~ c n hat thc niits.; ~ l n d

    velocity o f the cheetah and the deer are 60 kg 20 ni s v and

    70

    kg 5 s ~ 'espectively.

    Diagram 3.2 show s the cheetah successfully landed il's jaws on thc deer and b o ~ h f rhcm

    are movin g with a same velocity of v s .

    Ktljirlr 3.1 tnenlin~rikkun eekor /~ t~r i t i i t~t iin~t i t igrri/tiiig nreiigt

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    SULIT

    8

    4 i )

    Name the Physics principle that is involved in the above hunting.

    Namakan pr im @ Fizik yang terlibat dalam pemburuan di arm

    l mark]

    [ l markah]

    ii)

    Define the Physics principle that you mension in

    d) i).

    TaknjRan pr im @ Fizik yang anda nyatakan dalam dXi).

    mark1

    [ markah]

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    SULIT

    9

    4

    Diagram 4.1 shows a SONAR waves is sent by transmitter at the lower

    part

    of the boat and

    the echo es are detected by hydrophone.

    Diagram

    4.2

    sh ow s the trace on the screen of oscilloscope.

    Rujuh 4.1 menunjukhn gelombang SONAR yang dihuntar melmlui transmitter ke cla.var /nut

    dun gem0 dikesan oleh hidrofon.

    Rajah 4.2 menu njukkan surihan gelombang yang dipaparkan oleh skrin osilo.skop

    Diagram 4.1

    Rajah 4.1

    Diagram 4.2

    Rajah

    4.2

    a )

    What is meant by wavelenght?

    A pa hl z yang dimaksudkan dengan panjang gelombang?

    . . . . . . , , . . , . . . . . . . . . , . . . . . . , . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . 3 . . . . . . . .

    [ mark]

    [I markah]

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    10

    b )

    Sound waves with fiequency of 5.8

    x

    10 z are used to determine the depth of

    the sea.

    The

    speed of sound w aves in sea water is 1250 ms-I. The time-base o f the

    oscilloscope is adjusted at 50 ms cm-I. If the time interval between the transm itting

    and receiving a pulse of waves is 1.2

    s.

    Calculate

    Gelombang bunyi ber /e ku en ~i

    .8 x 10 Hz

    digunakan untuk mene ntukan

    kedalam an laut. Laju gelombang air ialah

    1250 m i l .

    Dasar- masa bag i

    osiloskop dilaraskan pada

    50 ms cm-I.

    Jika sela m asa di antara den yutan

    gelom bang tuju dun gelombang yang diterima adalilh

    1.2 s. Hitung

    (i)

    the depth of the sea.

    kedalaman laut

    [ marks]

    [2

    markahj

    (ii)

    the wavelength of the sound wave.

    panjang gelombang b agi gelombang bunyi

    [2

    marks]

    [ markahJ

    c )

    Observe the Diagram

    4.1

    and 4.2.

    Pevhatikan Rajah

    4.1

    dun Rajah

    4.2

    i )

    Com pare the am plitude of the reflection waves.

    Bandingkan am plilude gelombang panlulan yang dihasilkan

    [

    mark]

    [ l

    markah]

    (ii)

    Explain your answer in

    c)

    (i)

    .ielaskan jcnvapan anda d i

    (c)(i)

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    J

    I . I T

    5 Diagram 5 1 show s a

    load

    placed on an ice block

    Diagram 5 2 show s

    an

    ice block withot11 he load

    Rtrjoh 5 1 rncr7zrr?jukk~ln eb~ ln ile ~o kk on li

    u ns

    hlok oic.

    Rqjali 5 2 ~?rerrllnjltkkn~rlok 0i.c tnnpa hebun tli Lrr~c.vn>,tr

    I oad

    Bebon

    Ice block

    A i r hlok

    ,u)

    What

    is

    mean1 by iiensily?

    [

    mark]

    [ / I I ( I I . ~ L I I \

    h )

    f:splain \ \ h y [he ice block float in water

    J e l ~ n k u n cjngrr/,tr bl ok r1i.r teralpzrrlg rlultnn ~rir ..

    )

    What are the fo rces ac t i ~ ~ g

    n

    the ice block?

    /Iptrkrllr ~/ crj~ c~- tlrr ~tr~1trgerlr~rtltrk t, rl~rrs lok

    err\'

    MOZ@C

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    SUL T 12

    4

    Base on D iagram

    5.1

    and D iagram

    5.2,

    Berdusarhn Rajah 5.1 dan Rajah 5.2,

    i )

    compare the volum e of water displaced.

    handinghn isipadu air yung tersesar

    [I mark]

    [I markah]

    ii)

    compare [he weight

    o

    water displaced.

    handingkan berat air yung tersesar

    [I

    mark]

    [ I markah]

    iii) Co mp are the buoyant force.

    bandinghn daya ulangan

    [ mark]

    [

    markah]

    iv) State the relationship between buoyant force and the weight of water

    displaced.

    Nyatakan hubungarr dinntara dnya julangan dan berat air yang t