9 statika fluida.pdf

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    AA

    D

    A

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    N /:

    O DB D( P ) ( )

    FIIKA

    1

    I.

    ...J

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    tonamuo

    peostaneizfizike

    MJEO MOIACIJE ?P

    R.Jurdana-ep

    i,

    B.

    Miloti

    O .

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    tonamuo

    peostaneizfizike

    Nae malo istraivanje prirodoznanstvene pismenosti, 2008

    Pitanjaodabir

    kolska vs. popularna

    26 s ponuenim odgovorima + 10 konceptualnih

    R.Jurdana-ep

    i,

    B.

    Miloti

    Uzorak

    167 ispitanika u dobi od 20 do 75 godina

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    4 . . 2007/08 ,

    L DD G G

    I LD LJ LI M

    D M PD P PI P

    M

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    9%

    4%

    1

    2

    3

    5565 .

    +65 .

    tonamuo

    peostaneizfizike

    54%

    9%

    7%

    4

    5

    6

    1525 .

    .

    3545 .

    2535 .

    R.Jurdana-ep

    i,

    B.

    Miloti

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    35%

    65%

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    5%

    12%

    1%

    42%

    40%

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    NEOAN

    tonamuopeostaneizfizike

    OAN

    PIBLINO ONO, NA AG

    R.Jurdana-ep

    i,

    B.

    Miloti

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    37

    0

    8

    8.

    ,

    ?

    47

    16

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    6

    9

    9.

    ?

    51

    14

    29

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    16

    29

    10

    10.,

    ?

    34

    20

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    FIIKA1

    D =

    A , .

    C . K .

    , . . , . .

    I....J

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    AA DA

    AIKA FLIDA

    DINAMIKA FLIDA

    FIIKA1

    KINEMAIKA FLIDA

    I....J

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    AA DA

    AEOMEHANIKA( )

    HIDOMEHANIKA

    FIIKA1

    A

    H

    I....J

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    AA

    DA

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    A A

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    A

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    S

    Fp

    =

    A

    A

    dFF

    FIIK

    A1

    dSSS m0

    SpdFd

    rr

    =

    I.

    ...J

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    A

    P ()

    Tdp

    dV

    V

    = 1

    [ ] 1Pa=LAIO

    FIIK

    A1

    O

    P = .

    I.

    ...J

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    ACA A

    K

    2

    2

    1

    1

    S

    F

    S

    Fp ==

    FIIK

    A1

    H

    I.

    ...J

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    ACA A A

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    DA A

    FF

    SpF a=1

    SghVggmG === SghSpSpa += S:

    A1

    SpF =2

    h

    S

    : GFF += 12

    ghpp a +=

    H

    V

    I....J

    FII

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    DA A

    ghpp a+=

    FIIK

    A1

    ( ),

    I.

    ...J

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    A DA

    K A,B,C,D ?

    DA A DC

    FIIK

    A1

    J, .

    I.

    ...J

    DA A A

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    O

    DA A A

    DA A DC

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    DA AADK .

    DA A DC

    K ?

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    D .

    DA AAD

    K ?

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    DA AAD

    K ?

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    H ()

    , .

    H

    .

    DA AAD

    FIIK

    A1

    H .

    H .

    I.

    ...J

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    AMOFEKILA

    K

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    AMO

    FEKILAK

    H

    O

    G

    17..

    P

    ://../://../

    AMOFEKI LAK

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    AMOFEKI LAK

    H

    E 17..

    P

    ://../

    ://../

    J

    O .

    AMOFEKI LAK

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    AMOFEKI LAK

    1pghpa +=

    FIIKA1

    =0

    ghpa =

    Pa101325=ap

    N ,

    H

    I....J

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    EAJI A MJEENJE LAKA (MANOMEI, BAOMEI..)

    AMOFEKI LAK

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    B

    gdhdp =h

    O

    pp +

    p

    P

    FIIKA1

    0p

    h

    .konstpV=

    hhoo VpVp =

    V

    m=

    I

    mV=

    h

    h

    o

    o

    mp

    mp

    =

    I....J

    B

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    hh

    oo

    mp

    mp

    =

    : m

    h

    h

    o

    o pp

    =h

    o

    oh p

    p

    =

    FIIKA1

    gdhpp

    dp ho

    o=

    =hp

    podhgp

    dpp

    0

    00

    ( ) ghppp o= 00 lnln

    I....J

    B

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    ( ) ghpppo

    = 00

    lnln

    ghpp

    p o

    00

    ln =

    0

    :p

    ghp

    o

    e

    p

    p0

    0

    =

    ghp

    o

    0

    =

    FIIKA1

    B

    E

    I....J

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    H

    P

    ://../://../

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    H

    .

    P

    ://../://../

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    A , , , .

    KLEPIDA ODOKADICA ODENI AH

    E (5.. ...) .L E

    E.

    P

    ://

    ../

    ://

    ../

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    U

    ZGON

    A

    D

    A

    Arhim

    ediz

    Sirak

    uz

    e

    (287.-212.

    pr.n.e.)

    Otac

    hidostatike

    iin

    en

    jers

    tva

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    Sila kojom fluid djeluje na tijela koja su u nj.

    FIIKA1

    f

    22 ghpp fa +=

    11 a

    I

    ....J

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    22 ghpp fa +=11 ghpp fa+=

    SpF 11=SpF 22=

    === SpSpFFFu 1212

    Sghpghp fafa )( 12 ++Shhgf )( 12=

    FII

    KA1

    =gVf=gVF fu=

    gmF fu= AD A

    .

    A , .

    I

    ....J

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    f

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    1.

    UVJETI

    PLIVANJ

    ATIJELA

    =

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    UVJETIPLIVANJA

    TIJELA

    2.

    >

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    3.

    UVJETI

    PLIVANJ

    ATIJELA

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    G ?

    FIIKA1

    Mrtvo more ("Slano more", "More smrti" ili "Lotovo more") zapravo jeslano jezero smjeteno na Srednjem istoku izmeu Jordana i Izraela

    Sadraj je soli u Sredozemnom moru tek oko 3 posto, a u Mrtvom je

    moru jezeru salinitet 10 puta vei te iznosi i do 33 posto.

    I

    ....J

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    ...

    ...

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    P

    M

    O

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    P

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    N

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    H

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    ..

    A

    1,K,,201

    1

    ,

    .. ?N 0,5 120 . A , , , ,

    , . .

    ( CI)

    BM,

    J

    ,1

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    , , N

    K O , .

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    1,K,,201

    1

    Dvije ae su u ravnotei na poluzi.

    U jednu umoimo prst.

    Koja strana e prevagnuti ?

    Pokus je jo bolje zamisliti s utegom umjesto prsta i

    vagom umjesto poluge.

    BM,

    J,1

    P

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    P

    O: , . 1,K,,201

    1

    , .

    . .

    O /

    () ( , ) NE (/).N (, )

    BM,

    J,1

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    B. M, . J, , K, , 2011

    M. B, , F , 2005

    D

    , H , , , 2006

    ://.../////. , , , O

    A, O://.////F2.

    H , , , 2006

    ://..//.