96

ΦΥΣΙΚΗ Γ ΓΥΜΝΑΣΙΟΥ

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FYSIKI G GYMNASIOU

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    Copyright : ..

    :

    , 2008

    ISBN: 978-960-473-027-8

    ,

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    ...4

    ..... 6

    1: ............................ 15

    2: -....... 51

    3: ..... 61

    85

    91

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    ,

    . ,

    .

    Richard Feynman,

    .

    , .

    ,

    .

    Albert Einstein,

    ,

    .Richard Buckminster Fuller,

    , .

    .

    Roger Bacon,

    , .

    :

    .

    William Whewell,

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    (, ..).

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    !. : !

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    _____________________________________________________

    _____________________________________________________

    1. .

    2. .

    3. .

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    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

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    _________________________________________________________

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    _____________________________________________________

    _____________________________________________________

    1. .

    2. .

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    3.

    .

    4. .

    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _________________________________________________________

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    _____________________________________________________

    _____________________________________________________

    1. .

    2. .

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    3. 1 2

    .

    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _________________________________________________________

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    _____________________________________________________

    _____________________________________________________

    Wimshurst

    1. .

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    / _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _________________________________________________________

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    _____________________________________________________

    _____________________________________________________

    ( )

    1. .

    2. .

    ( )

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    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________________

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    _____________________________________________________

    _____________________________________________________

    R1= 100 R2= 300

    1. .

    2. V= ____ V.

    3. :

    R1= __________ I1= __________ V1= __________

    R2= __________ I2= __________ V2= __________

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    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________________

    5.

    R= V/ I = ________________

    6. .

    R () I (A) V (V)

    1

    2

    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________________

    4.

    .

    I = __________

    V= __________

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    7. .

    I:

    V:

    R:

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    _____________________________________________________

    _____________________________________________________

    R1= 100 R2= 300

    1. .

    2. V= ____ V.

    3. :

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    R1= __________ I1= __________ V1= __________

    R2= __________ I2= __________ V2= __________

    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________________

    5.

    R= V/ I = ________________

    6. .

    R () I (A) V (V)

    1

    2

    4.

    .

    I = __________

    V= __________

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    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________________

    7. .

    I:

    V:

    R:

    8. .

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________________

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    1.

    2.

    :

    ;

    ;

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    3.

    4. , ,

    , .

    . ;

    .

    .

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    1.

    ; ;

    2.

    3.

    90 A. 0,5 s

    ;

    4. 6 mCb 2 s.

    ;

    ;

    : -

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    1. / / ;

    i)r

    qqkF 21= ii)

    2

    2

    1

    kq

    Frq = iii) 2

    21

    r

    qqkF = iv)

    221 kr

    Fqq = v)

    k

    Frqq

    2

    21 =

    2. q1q2 F,

    r. F

    ) r ;

    ) r ;

    ) q1;

    ) q1;

    3. 2 C -2 C .

    410-3. r . (k=91092

    2

    C

    mN )

    4.

    .

    5. q1 = 2 C q2 = 3 C r = 20

    cm.

    . (k=91092

    2

    C

    mN )

    Coulomb

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    1.

    .

    . V / I;

    2. ;

    .

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    3.

    4.

    90 V, 45 .

    ;

    5. 2,5

    220 V. ;

    6. , 220 V,

    0,5 .

    . ;

    . , 1/5 .

    ;

    . ;

    30 V

    2.

    ;

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    1. R

    l R S

    ; .

    A B

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    2.

    20 C.

    .

    3. H 8,5 , 1 mm

    . . (i = 7,8 10-8 m)

    4. 34,5 m 0,25 mm.

    .

    9 V ;

    (Cu = 1,7 10-8 m)

    5. To

    R = 1,4 .

    380 V (

    ).

    (Cu = 1,7 10-8 m)

    (m)

    1,59 10-8

    1,7 10-8

    2,44 10-8

    2,82 10-8

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    6. .

    I2 1/4

    ;

    7. 0,05 .

    (w = 5,6 10-8 m), 2 cm.

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    1. 20 5

    . 50 V.

    :

    . ,

    . ,

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    . .

    2. 6 V.

    ; .

    3. , 15 45 , . ,

    0,1 .

    4. 12 V : 15 ,

    21 24 .

    ;

    5. 44

    0,5 .

    . ;

    6.

    6 V. ;

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    7. 16 20 .

    40 V. :

    . ,

    .

    . .

    8. 150 ,

    25 50 .

    ,

    .

    9. .

    .

    10.

    ;

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    11.

    ;

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    12. .

    .

    13. ,

    , ; .

    14. ;

    .

    .

    .

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    1.

    , .

    S.I.

    :

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    (KWh) = ________________________________

    (J) = ________________________________

    () = ________________________________

    ( ) KWh () = ________________________________

    2. 11 W

    40 W.

    ,

    240 (10 ); 1 kWh 0,08 .

    3. (11,2 kV)

    220 V;

    4. : 220 , 5 W.

    ;

    5. 6 15 V.

    10 min;

    6. 100 W 20% . 20%

    .

    . J 1 ;

    . J 1 ;

    7. 110 W 352 . ;

    ;

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    -

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    _____________________________________________________

    _____________________________________________________

    ()

    1. .

    2. .

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    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    __________________

    3. .

    4. .

    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ________________________

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    _____________________________________________________

    _____________________________________________________

    -

    1.

    .

    2.

    .

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    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ________________________

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    _____________________________________________________

    _____________________________________________________

    2

    50 g

    100 g

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    1.

    50 cm.

    2. 1 = 10

    .

    3. T1= t1/N1.

    l1 m 10

    t1 1

    4. 100

    cm .

    l2 m 10

    t2 2

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    /

    _______________________________________________________________

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    _________________________________________________________

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    1. 4 s

    .

    . ,

    u = 340 m/s.

    2. 120

    .

    4 .

    .

    3.

    20 Hz 20 kHz.

    u = 340 m/s,

    ,

    .

    :

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    _____________________________________________________

    _____________________________________________________

    1. .

    2.

    , 60.

    3. .

    =

    = .

    4. = 30.

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    5. .

    =

    = .

    6. = 0.

    7. .

    =

    = .

    /

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    _______________________________________________________________

    ____________________________________

    8. .

    /

    _______________________________________________________________

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    ____________________________________

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    _____________________________________________________

    _____________________________________________________

    1. .

    2. .

    /

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    ____________________________________

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    _____________________________________________________

    _____________________________________________________

    1. .

    /

    _______________________________________________________________

    _______________________________________________________________

    ______________________________________________________________________________________________________________________________

    ____________________________________

    2. .

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    _____________________________________________________

    _____________________________________________________

    1. .

    /

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    ____________________________________

    2. .

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    _____________________________________________________

    _____________________________________________________

    1. .

    2. ( = 60).

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    3. .

    =

    = .

    /

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    ____________________________________

    4.

    .

    /

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    ____________________________________

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    _____________________________________________________

    _____________________________________________________

    1. .

    2. .

    3. 15 .

    = 15

    = .

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    4. 30 .

    = 30

    = .

    5. 45 . ;

    = 45

    = .

    /

    _______________________________________________________________

    _______________________________________________________________

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    ____________________________________

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    _____________________________________________________

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    1. .

    2.

    .

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    1. .

    2.

    .

    /

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    ____________________________________

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    _____________________________________________________

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    1. .

    2. .

    /

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    ____________________________________

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    3. .

    /

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    _________________________________

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    ___

    1. .

    2. .

    .

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    .

    ;

    5. ,

    .

    ;

    1

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    1

    2

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    6. ,

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    . , .. Wimshurst .

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    , 2008, , . ..

    .http://www.exploratorium.edu/science_explorer/periscope.html

    TLhttp://www.ntl.at/catalogue/index.htm

    http://www.exploratorium.edu/science_explorer/periscope.htmlhttp://www.exploratorium.edu/science_explorer/periscope.htmlhttp://www.ntl.at/catalogue/index.htmhttp://www.ntl.at/catalogue/index.htmhttp://www.ntl.at/catalogue/index.htmhttp://www.exploratorium.edu/science_explorer/periscope.html
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    time t s

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