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Page 1: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1
Page 2: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1
Page 3: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1
Page 4: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1
Page 5: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1
Page 6: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1

ا

:ع اء ار اء)1-1 )1 د! #:

-- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

1-2 ( :ا+*ول ا'& %د! ا#

! آت ادة ا-*م اVc 45ة 0 0 0 ا2*1! .1

! ال x x x 45ة xVc −.1

!1 ا! ا67fx fx fx 45ة xVc −.1

ا* و87 ) 1-3- أن اء ># 45ة 5;ن ار ه ا : 0. max1 =− xVC ⇐>?@ا-*م ا :VCx .1max =

&1]: وا-*م ا67 ]VOHOHnx f .)( 33++ ==

&1: A>2! ا-*م ا67[ ] [ ] 2

2

01,3

21

3

1

3

max

1077,90977,010

10

10

10

.

. −−

−++

×=======pH

f

C

OH

VC

VOH

x

1<τ&%4 آB إذن ال. --------------------------------------------------------------------------------------------------------

رج) 1-4H : ا[ ] [ ]

[ ]686

3676

OHC

OHOHCQr

+− ×=

[ ] [ ] pHf

V

xOHCOH −−+ === 106763

[ ] pHff cV

xc

V

xVcOHC −−=−=

−= 10

.11

1686

[ ] [ ][ ]

4401,32

201,3

1

2

686

3676 1006,110058,11010

)10(

10

)10( −−−−

−+−

×≈×=−

=−

=pH

pH

rcOHC

OHOHCQ

K! اازن ا-4وI6 !Aا ا :4, 1006,1 −×== éqrQK.

--- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- -

2 (2 -1 ()(

2)(

676)()(

686laqaqaq

OHOHCHOOHC +→+ −−

- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- 2-2 ( L5MH N :BEBAAل M?! ا VCVC .. = ⇐

LmolV

VCC

A

BEBA /10425,1

10

5,9105,1. 22

−−

×=××==

- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- :آ! دة ار اQدة 5& ا-4ص) 2-3

molLLmolVcn A33 1085,22,0/1025,14. −− ×=××==

:آ%! ار اQدة 5& ا-4صmggmolmolgnMm 5005,01085,2/176. 3 =≈××== − N آ ?4ص Sي %< 500C &7# ا>! 5mg500 ار N.

---- -- ---- --- --- ---- --- --- ---- ----- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ----

3 (3-1 ()(

56)(

676)(

56)(

686aqaqaqaq

COOHHCOHCCOOHCOHC +⇔+ −−

41,1101010

10

)/(

)/( 04,42,4122

1

2

1

5656

676686 ≈===== −−−

−pkApkA

pkA

pkA

A

A

A

Ar K

K

COOHCCOOHHCK

OHCOHCKQ

- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- --- --- ---- ---- -- --- 3-2(

Page 7: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1

!KQr: ن @ Tر ا+ ! ازن.≈ &5 &65. - ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

71& ا-2 UTNS4 اVRC 1 ( Aن ) 1-1? W2T!57 إS* ، NYا 4ات 5& دارة ا :Uuu Rc =+

:dt

diRiRuR .. : و ==

dt

duc

dt

ucd

dt

dqi cc .

).(=== ⇐

2

2

.dt

udc

dt

di c=

: أي2

2

.dt

ucdcRuR =Iو &%S U: 2 ا#M?! او< آ

dt

udcRu c

c =+2

2

.

ZA:cR.=τ !%%< ا#د! ا 75 :Udt

udu c

c =+2

2

τ

---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- --- --- ----

1-2( )1()( τt

c eUtu−

−=

τ: إذن

τ

tc e

U

dt

du −= !%#S 5& ا#د! ا :Uu

dt

udc

c =+2

2

UUeUUeeUeU tttt

=−+=−+−−−−

ττττ

ττ )()1( : إذن)1( τ

t

c eUtu−

−= ،!%د! ا#% CR.=τ

- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- VUuc: 5& ا7\م ا*ا1] ) 1-3 300==

--- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- --- --- ---- --- --- --- ---- ----- ---- --- --- ---- -

1-4 (JcUEc 4,5)300(101202

1

2

1 262 =×××== −

---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- د ? 8 ا446آ! ) 1-5 !T4ة ا^N^ *7 ا* 2:VEo 5,1=?! ا46Tن ا !A`_و1! ا

aK5& ا :JJcEE Oc 510.135,0)5,1(101202

1

2

1 3262 <×=××== −−

& @ SN ا#ل هIا ا#د aK NY اض . و---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

2 ( 2-1 (

-- ---- --- --- ---- --- --- ---- -------- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

2-2 ( >% A Ams2,1=τ. ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

2-3 (τ=rc ⇐ Ω=××== −

1010120

102,16

3

F

s

cr

τ

---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- cKا NS4ا :

1 ( 1-1(

Page 8: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1

: MH Nل ا4Yوط ا2*1!

N24آ 6 !7* ا%\! (+6! ا>4ot = (αα

sin.

cos.

VoVoy

VoVoxVO =

=

6Aا4ة ز Z` ، MH Pل 4آ6

f-5 .

&%S U N 7 &A آKن اAGamP: ا#M?! ا#42ة N ا-

.=

ط -g%< ار ox >% A :xam.0 = ⇐ 0=dt

dvx xvوه& ا#د! ا%! ا& --6

⇐ tex Cv =αcos.VoVx: و87 5;ن =

ط %< ار -goy >% A :xamP .=− ⇐ gaY −= ⇐ gdt

dvy yv: ا#د! ا%! ل=−

.': و87 5;ن CtgVy 7* ا%\! =−+ 7S* !1*24وط اYل اMH N 0=t :αsin.Vovy = ⇐ αsin.' VoC =

&..αsin: و VotgVy +−=

--- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- 1-2( >% A !1*24وط اYر ا2:

+−=

=

tVotgy

tVox

)..(sin.2

1

)..(cos

2 α

αد! ا>ر# :α

αtgx

Vo

xgy .

cos..

2

122

2

+−=

---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- 1-3 ( 7S*mxB 15= >% A رد! ا># &5 S#By:

mmtgtgxVo

xgy B

BB 566,4459,5796,020.15

20cos.40

)15(105,0.

cos..

2

122

2

22

2

<=+−=+××−=+−= αα

.ا4ة T*م Y+4ة---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

1-4( !S7>2! %_او°= 24α4ة4 ا4ة 5& ا f-< *7 Q ن mOQx ==0 و==120 Qyy

:V] #ض 5& #د! ا>ر

24.12024cos.

120.10

2

10

22

2

tgVo

+−= ⇐ 43,535.86272

2=

OV

smVO /2,40=

---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- 2 ( :درا! 4آ! ا4ة 5ق ا>ى ا5-&) 2-1

Z` R ا4ة 4Vj ا>ى

6Aوز P

. &%S U N 7 &A آKن اAGamRP: ا#M?! ا#42ة N ا-

.=+

ط %< ار -gox >% A :xmaf 0: أي0−=2

2

=+ fdt

xdm !4آ !% وه& ا#د! ا

.ا4ة4آ_ ?ر

Page 9: examen national 2008 br.sc v. et t. 1 re session marocali-physique.e-monsite.com/medias/files/exam-bac-svt-n-2008-ec.pdf · ا: ء ا ع : ء ا ر ˇˆا ˙ ˝ ˛˚ ˜ !د # (1-1

2-2( 7S* !-MH N :2ل ا#M?! ا>

3

2

/5,01045

1025,2sm

m

fax −=

×

×−=

−=

أذن 4آ! ا4ة >-!

!klم 2\A . 4mة - ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----

2-3 ( !MH N :1vatvل دا! ا>4 +=

ا4ة >4! 7#*! إ< ا4ة MHل *ة ز7! >وS! ل :s4 ⇐ 1)4.(5,00 V+−=

smV /21 = . -- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- ---- -- ---- --- --- --

NS41ا : &#^gط اY7 nSرjا: 1-1 (oد! ا#:

XeC AZ+→−

01

146 ⇐ 14=A 7 و=Z

NeC 147

01

146 +→−

--- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- ?! هIا ال ا7وي )1-2l:

[ ] [ ]MeVMeVccMeV

cuccCmemNmcmE

75,27479,2)/(5,93100295,0

.00295,0.0111,1400055,00076,14.)()()(.22

2222

−≈−=××−=−=−+=−+=∆=∆

2 (2-1 (17

2/1

1039,33655600

2ln2ln −−×=×

== JoursJourst

λ

-- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- --

2-2 ( 7S* :to eaa .. λ−= ⇐ t

o

ea

a .λ−= ⇐ ta

a

o

.ln λ−=

joursansJoursa

aa

a

t

o

o 5,14122225427,8111711039,38,21

7,28lnlnln

6+≈=

×==

−= −λλ

---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ----- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- 7! ?2 اMد o?4B222 ا>7! ا& )2-3.

- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- -- ---- --- --- ---- --- --- ---- ---- SBIRO ABDELKRIM

Royaume du Maroc fr.yahoo@sbiabdou Adresse éléctronique

Msen messager : [email protected]