Φυσικη Α΄ Λυκειου Τραπεζα Θεματων με Απαντήσεις

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:

( 2, 4) .

.

.

1. H, - .

) . (K) (y) , :

) ) )

4 ) .

8

2. m - F, = 2g, g -.

) :

) F ) 3F ) F3

4

) .

9

F

K

0 y

()

0

K

H y

()

K

0 yH

()

Iro Markaki 1

mA = 5 kg mB = 10 kg, x. t = 0 s xo = 0 m, . = 10 m/s, = 30 m/s, -

= 2 m/s2 .

:

1) , 5

2) t,

6 3) ,

8 4) to = 0 s, .

6


1

- :

1.

: )

. 2.

: )

: = = = 2 = 2 =

- :

1. ... : = 0. : = = 20 / 2. : = = 10 = 30

2 0 = 20 0 = t(20 t) = 20 .

3. : = = 30 2 = 10 = 10. 4. : = 0 . : =

= 5 10 5 30 = 500 4500 = 4000.

1. m . h .

) .

:

) mgh ) 0 ) 2mgh 4

) .

8

2. .

.

) .

0 s - 30 s :

) +300 m ) +600 m ) 300 m 4

B) . 9

Iro Markaki 2

m = 2 kg = 0,5. t = 0 s, F

& 30 N t = 3 s, -

F&. g = 10 m/s2.

.

:

1) , 6

2) F , 6

3) , 6

4) t = 0 s .

7

m F


2

- :

1.

: ) 0

, . 2.

: )

: 0 10 : = = 30 10 = 300 . : 10 20 , . 20 30 , ( ) . , : + = = 300 .

- :

1) : = = 0,5 = 0,5 2 10 = 10 2) : = = 20 = 2 = 10 / =

=

10 9 = 45 .

= = 40 45 = 1350 . 3) : = = 10 = 2 =

. : = = 30 /. : = = 6 . 4) : =

=

= 90

. , : + = 135 .

= 0

1. x

x = 6t (SI) x = 2t2 (SI) . ) .

, :

) t = 2 s ) t = 1,5 s ) t = 3 s 4

) . 8

2. . F :

) .

H

) x0 = 0 m x . ) x x . ) x0 = 0 m x .

4 ) .

9

0 x

F

Ax Bx

Iro Markaki 3

, . F

&

. to = 0 s 2 m/s t1 = 2 s 12 m/s. ( F

&), 2 s

= 98 W. , = 0,2. g = 10 m/s2 .

:

1) ,

5

2) F&

2 s,

6

3) F&

.

7

4) .

7


3

- :

1. : ) = ,

= 6 / = 4 /. : = = 4. : = 6 = 4 = 1,5 . 2. : ) = .

, . , . , ( ) ( ). = 0 .

- :

1) , : = + = = = 5 2) : = = 98 2 = 196 . 3) : = +

12 = 2 2 +

12 5 4 = 4 + 10 = 14m

: = = = 14 . 4) : = = 0,2 = 2 = = 14 2 = 5 = 2.

= 2 / = 12 /

= 0 = 2

B 1. xx t = 0 s x0 = 0 m.

.

) .

t = 30 s

) 125 m ) 100 m ) 75 m 4

) .

8

2. .

. 2.

)

:

) 3 ) 2 ) 4 4

)

9

t s0 10

sm /X

10

20

-5

25 30

Iro Markaki 4

m = 10 kg, , t0 = 0 s 1F

& 20 .

1) t0 = 0 s t1 = 10 s. 6

2) 1F&

.

6

t0 = 0 s 1F&

2F&

1F&, .

3)

1F&

2F&

. 5

4) 1F&

t0 = 0 s t1 = 10 s

1F&

2F&

.

2.

8


4

- :

1. : ) =

, , . : = = 20 10 = 100 = =

(30 20) 5 = 25 .

: = = 75 2. : )

(....): + = 0 = =

12

12(2) = 3

12 = 3

- :

1) 2 .: = = = 2 /. ,

= 0 = 10 : = = 2 10 = 100 2) : = = 20 100 = 2000 . , : 3) = + = = 4/ ,

= 0 = 10 : = = 4 10 = 200 4) : = = 20 200 = 4000 . : = 2 .

B 1. 1, 2 1 2 ,

.

) 1 2.

5 ) , 1 2 .

7

2. 1, d1 . , 2 = 21, d2.

) . ,

:

) d2 = 2d1 ) d2 = 3d1 ) d2 = 4d1 4

) . 9

1

2

Iro Markaki 5

m = 50 kg . to = 0 s , .

. F = 200 - F = 50 . t1, 2m , , -

.

= 0,4 -

g = 10 m/s2. 1) .

6 2) t1 .

6 3) to = 0 s t2 = 4 s.

7 4) , , to = 0 s t1, .

6


5

- :

1. . : 1: = 0 = + 2: = 0 = : = = +

2.

: ) =

. : 0 = =

: =

12 =

12

=

12

=

2

, = 2, : =

2=4

2= 4

- :

1) : = , . : = = 0,4 = 0,4 500 = 200 2) 2 . : = , . : + = 250 200 = 50 = 1 / : =

12

2

= 4 = : = 2 .


3) = 0 = . , .. . : = = 2/ ( ). 4) :

= = 200 2 = 400 :

=

= = 200 2 = 400

2

= 0

()

(/)

2 4 2

B 1. , h, h .

) . t = 2t, h h :

) hA = 2hB ) hA = 4hB ) hA = 8hB 4

) .

8

2. ,

a , - .

-

.

) . :

) F1+F2=2mg ) F1-F2=mg ) F1+F2=mg 4

) .

9

m

gm&

1F&

a&m

gm&

2F&

a&

Iro Markaki 6

m = 2 kg . t = 0 s,

F = 10 + 2x (SI). x = 0 m t = 0 s - x. F 50 . 0,4. -

g=10m/s2 .

:

1) .

5 2) x = 10 m.

7 3) F x = 0 m F .

7 4) t = 0 s .

6


6

- :

1. : ) = : =

, : = = = 2 .

, : = 4 . 2. : ) + = 2 .. : = (1), : = (2) (1) (2) : ( ) ( ) = 0 + = 2 - :

1) , : = : = = 0,4 20 = 8 2) = 10 : = 30 . : = = 22 = 2 = 11 / , : = 11 /. 3) H : = 10 + 2 50 = 10 + 2 = 20 , . , : = 20 = 600 4) ... =0 . = 0 = 600 8 =

6008

= 75

()

()

20 0

50 10

B1. m = 500 g . F

& 10 N.

) . ,

:

) 20 m/s2 ) 2 m/s2 ) 0,2 m/s2 4

) .

8

B2.

.

) . F

x = 0 m x = 2 m :

) 40 J ) 20 J ) 80 J

4

) .

9

0 x(m )

F( )

1 2

20

10

Iro Markaki 7

. 1) , 2) ,

3) , 4) , 5)

.

( ) , m = 2 kg. ( ) (), F

&

. F = 4 N

1 m 4 s.

( ) .

9 m.

g = 10 m/s2 .. :

1) , ,

6 2) , ( ),

6 3) ,

7 4) .

6


7

- :

1. : ) / , ( = =10 ). , : = =

2

=2 10 10

0,5= 20 /

2. : ) ,

. : = = 2 20 = 20

- :

1) (), : = 0 = 0 = = 4 . 4 : =

=

= 0,25 /

: = = = 0,2,

= 0,2. 2) ( ) : = = 4 0,25 = 1 3) (): 9. , : = = =

=

= 2 /.

: =

2 = 2 = 6 /

4) , : = = = 3 .... : = 0

= =

2 6 = 36 . :

. =

= 363= 12

B 1. , , .

) . ,

, , .

(J) (J) (J)

80 100

40

10

4

) .

8

2. F

g2 , g .

) .

, F F .

) F = 2 ) F = 2 ) F =

4

) .

9

Iro Markaki 8

.

1) 1 2 0 s 4 s

8 s 10 s .

5 2) ,

t = 0 s t = 10 s. 6

3) 0 s 10 s. 7

4) 1 2 t1 = 2 s

t2 = 9 s , 12

KK .

7

(m/s)

t (s) 4 8 10

10

20

0


8

1. . = + . , , . : 2. : ) =

. , 2 : = =

2 =

2

=2

- : 1) :

0 4 sec : =

=104= 2,5 /

8 10 sec : =

=102= 5 /

.

2) 4 10 s , .

(J) (J) (J) 20 80 100 40 60 100 90 10 100

()

(/)

4 8 2,5

10

5

()

(/)

4 8 10

10

20


3) . . :

= + + =12 4 10 + (8 4) 10 +

10 + 202

2 = 20 + 40 + 30 = 90 :

=

=9010

= 9 /

4) = 2 : = = 5/ = 9 : = + = 10 + 5 = 15/ , :

=12

12

=

=

515

=13

=19

1) , () () - 25 km/h. - t = 0 . - .

) , . 25 km/h, : ) ) ) , 25 km/h

4 ) .

8 2) 1 2 1 2 .

) , .

1 = 22, 12

KK

1 2, : ) 4 ) 4 ) 2

4 ) .

9 1 2 m1 = 3 kg m2 = 5 kg , = 0,5. - , . t = 0 1 F - , = = 1 m/s2. 1) .

6 2) 2 - .

6 3) 1, - t = 0 t1 = 4 s.

6

F2. 1.

$%

t

Iro Markaki 9

4) , - 1.

7 g = 10 m/s2.


9

1. : )

. , 25km/h. 2. : ) 4

: = = = 2. , :

=12

12

=

=

2

= 4

- :

1) = 0 : = = . = = 15 = = 25 . 2) , (1) , , (2) . () : = 15 = 3 (1) , () : = 25 = 5 (2) (1) (2) : 40 = 8 = 48 = 1/. (1) : 48 15 = 3 33 = 3 = 30.

3) : : =

=

1 16 = 8 . : = = 30 8 = 240

4) : = = 48 8 = 384 : = = 15 8 = 120 ... : = = 384 120 240 = 24 :

100% =24384

100% =116

100% = 6,25%

1) . .

) . : ) . ) )

4 ) .

8

2) h . .

) . 2h, : ) 2 ) 4 ) 2

4 ) .

9 120 kg , xx.. F - t = 0, xo = 25 m, . - = 0,2 g = 10 m/s2. 1) F , , 0 o 5 s.

6 2) F ( F ), - t1 = 3 s.

6 3) t2 = 10 s.

6 4) F , 4 .

7 g = 10 m/s2.

x

t1t

1x

0 5 10

20

(s)t

(m/s)

15

10

Iro Markaki 10


10

1. : )

. , . . . 2. : )

: = = 2 : =

2 2 =

2 2

2=

2 = 2 = 2

- :

1) = 0 = 4 , : = 0 = = = = 0,2 1200 = 240 2) ( ) : =

= = 240 10 = 2400

3) . : = + = 10 5 +

(20 + 10)2

5

= 50 + 75 = 125 : = = + = 125 25 = 100

4) 4 sec = = 10 : = = 240 10 = 2400

()

(/)

5 10

10

20

15

1) m () F , .

) . 2m, -:

) 2 ) 3 ) 2a

4 ) .

8 2) 1 , H , . - ,

, 2Hh

. - .

) . : ) . ) .. ) .

4 ) .

9 1 2 40 kg -, -. t = 0 1 - 2 40 m/s, - 1. . 1) - 1 .

6 2) , t1, , t2 = 15s.

6 3) t1.

6 4) t = 0, - .

7

0 1t

60

(s)t

(m/s)

15

40

1

2

Iro Markaki 11


11

1. : )

: = = . A

. : = 2 =

12 =

12

2. : ) .

: 0 = : = = = : 0 + = + = , . - :

1) () : =

= 4/ , : = = 160 . 2) () =15 :

=12 0 =

12 40 3600 = 72.000

() : = 0 . 3) : =

= 450 = 40 15 = 600 . , : = | | = 150 ( .) 4) = 15 () = 15 . : = . 40 = 450 + 60( 15) 40 = 450 + 60 900 450 = 20 =

= 22,5 22,5 .

1) . .

) . : ) . ) )

4 ) .

8 2) () () - . - .

) . () (), - , : ) () ) () ) , .

4 ) .

9 1 2 m1 = 6 kg m2 = 4 kg , 2 1. t = 0 1 F - . , . 1 30 g = 10 m/s2. 1) F .

5 2) F , - 120 m.

6 3) 1 .

6 4) t1 2, F 1 10 m/s. 1, t2 = t1 + 5 s.

8

x

t1t

1x

F1626

Iro Markaki 12


12

B1. : )

. , . . . B2. : ) , . : = ,

= , ,

: =,

: = , . : =

,

. , > , > .

- : 1) : = 0 = = 30 . 2) = 120 . : = = 30 120 = 3600 3) : + = (1) : = : = (1) : + = = ( + ) = 100 = =

= 0,3 4) : = 10/ . : = = = 0,3 60 = 18 = = 12 = 6 = 2/ , : = + , = , . , = + 5 = 5 : = 10 + 2 5 = 20 / : =

=

6 400 = 1.200

1) , t = 0 - .

) . t1 1, - t2 = 2t1 : ) 21 ) 41 ) 1

2

4 ) .

8 2) () m 1,2 m ( 1). 4 m ( 2).

) . W1 W2 (1) (2) , : ) W1 = W2 ) W1 < W2 ) W1 > W2

4 ) .

9 900 kg - , - xx. to = 0, , xo = + 25 m. - , t = 0 t4 = 25 s. 1) .

5 2) , t = 0 t1 = 5 s.

6 3) t2 = 15 s t4 = 25 s.

6 4) , - t = 0 t4 = 25 s.

8

0

20

(s)t

(m/s)

15

10

20 255

20

Iro Markaki 13


13

1. : )

: = , : = : = = 2 = 2. 2. : ) <

( < 0) ( = 0).

- : : = 20 15 = 5 , . = 20 . 2) 0 5 , : =

=

= 2 / : = = 1800

3) . 0 15 : =

20 + 102

5 + 20 10 = 275 : = = 25 + 275 = 300 15 20 : = = = 50 20 25 : = =

= 50. ,

( = = 300 ) . , , . , 15 25 . 4) .... : = = = 900 [(20) 10] =

12 900 (400 100) =

12 900 300 = 135000 .

()

(/)

5 15 10 20

25 20

20

1) 1 , H , . . , . - - .

) . : ) . ) . ) .

4 ) .

8 2) , 1 2 , .

) . t = 0 t1, - 1, : ) 2. ) 2. ) 2.

4 ) .

9 8 kg . t = 0 F , - xx. - x , 100 20F x , ( F x m) . x = 0 30 . 1) F .

5 2) F , t = 0, .

6 3) F .

6 4) , - F .

8

t1t

1

1

2

0

12

Iro Markaki 14


14 :

1. : ) .

, . , .

2. : ) .

, : . : =

= 2 = 2

- :

1) : = 0 100 20 = 0 = 5 . 2) , . =

100 5 = 250

3) ... = 5 : =

12 0 = 250 30 5 4

= 100 = 5/ 4) . = 30 30 = 100 20 20 = 70 = 3,5 . = 5 = = 1,5 .

()

(/)

2

()

() 100

5

1) - , - xx. - .

) . : ) 140 m ) 60 m ) 40 m

4 ) .

8

2) F . x, .

) . 4F x, : ) 2 ) 4 )

2

4 ) .

9 m = 20 kg, . to = 0 1 2, F F 3F . 1 2, F F , - 35 45 , , 3F , - . 1 2, F F , - t1 = 6 s 45 m. : 1) 0 o t1.

6 2) 3F .

6 t1, . . to = 0, t2 = 10 s, - 137 m. 3) .

8 4) 0 o t2.

5

t s0

x m

5 10 15 18

50

40

Iro Markaki 15


15 :

1. : )

= 0 = 15 = 0. = 18 =40 . : = = 40 0 = 40 2. : )

, .... : =

12 0 = =

2

= 12 0 = 4 =

2 4

: = 4 = 2. - :

1) : = 45 =

36 =

= 2,5 /

2) : = 35 + 45 = 20 80 = 50 = 30 3) = 6 = 10 : = 137 45 = 92 . : = = 2,5 6 = 15 / : = +

92 = 15 4 +

16 92 60 = 8 = 4 /

, : = = 80 = + . 4) : = + = 15 + 16 = 31 / ... : = =

12 20 31 0 = 10 961 = 9610

45

1) , - . , - , .

) . g , : ) MgH. ) MgH. ) MgH.

4 ) .

8 2) - -, .

) . s s, , 10 to , : ) As s% ) 2s s$ ) A 2s s%

4 ) .

9 1 2 , m1 = 15 kg m2 = 25 kg . - l = 2 m, - . t = 0 1 F 2 m/s2, . - = 0,4. 1) ..

6 2) 2 2 .

6 3) F , t = 0 t1 = 4 s.

6 4) t1 = 4 s , F . - 1 2, t2 = 7 s.

7 g = 10 m/s2.

F26 16

t1t

1

A

0

Iro Markaki 16


15 :

1. : ) .

. , . ( : = + = 0 + = ). , , . . 2. : ) = .

: =

, : = .

: =

= = . , = . = : = = 2. - :

1) : = = = 150 = = = 250 . : = = 0,4 150 = 60 = = 0,4 250 = 100 2) () : = = + = 100 + 25 2 = 150 . , 150 . 3) = 0 = 4 . : =

=

2 16 = 16 .

() : = = 150 + 60 + 15 0,4 = 216 . : = = 216 16 = 3456


4) () . : = 216 60 = 15 =

= 10,4 / = = 8 /. () = 4 = 7 : = +

= 8 3 +

10,4 9 = 70,8 (1), = 7 4 = 3 .

() = = = 4/ : =

(2)

(2) . . : = , . = 0 : = = = 2 . 6 s : =

= 8 2

4 2 = 8 T : = + = 2 + 70,8 8 = 64,8 .

: !

= = s

=

Φυσικη Α΄ Λυκειου Τραπεζα Θεματων με Απαντήσεις

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Transcript of Φυσικη Α΄ Λυκειου Τραπεζα Θεματων με Απαντήσεις