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FYSIKI G GYMNASIOU
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Copyright : ..
:
, 2008
ISBN: 978-960-473-027-8
,
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Richard Feynman,
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Albert Einstein,
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.Richard Buckminster Fuller,
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Roger Bacon,
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William Whewell,
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_____________________________________________________
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2. .
3. .
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3. 1 2
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_____________________________________________________
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Wimshurst
1. .
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/ _______________________________________________________________
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_____________________________________________________
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( )
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2. .
( )
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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 = ________________
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R () I (A) V (V)
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4.
.
I = __________
V= __________
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7. .
I:
V:
R:
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_____________________________________________________
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R1= 100 R2= 300
1. .
2. V= ____ V.
3. :
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R1= __________ I1= __________ V1= __________
R2= __________ I2= __________ V2= __________
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5.
R= V/ I = ________________
6. .
R () I (A) V (V)
1
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I:
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1.
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1.
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90 A. 0,5 s
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4. 6 mCb 2 s.
;
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1. / / ;
i)r
qqkF 21= ii)
2
2
1
kq
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k
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cm.
. (k=91092
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Coulomb
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1.
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1. R
l R S
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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
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7. 16 20 .
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1.
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(KWh) = ________________________________
(J) = ________________________________
() = ________________________________
( ) KWh () = ________________________________
2. 11 W
40 W.
,
240 (10 ); 1 kWh 0,08 .
3. (11,2 kV)
220 V;
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10 min;
6. 100 W 20% . 20%
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-
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_____________________________________________________
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()
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2. .
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_______________________________________________________________
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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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1. 4 s
.
. ,
u = 340 m/s.
2. 120
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4 .
.
3.
20 Hz 20 kHz.
u = 340 m/s,
,
.
:
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_____________________________________________________
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1. .
2.
, 60.
3. .
=
= .
4. = 30.
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2. .
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2. .
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2. .
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1. .
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1. .
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= 15
= .
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4. 30 .
= 30
= .
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= 45
= .
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1. .
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, 2008, , . ..
.http://www.exploratorium.edu/science_explorer/periscope.html
TLhttp://www.ntl.at/catalogue/index.htm
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time t s
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