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fiche de révision bac de physique

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Written for

Institution
Secondary school
Study
Lycée
Course
School year
1

Document information

Uploaded on
March 16, 2025
Number of pages
2
Written in
2024/2025
Type
Class notes
Professor(s)
Gilhey
Contains
All classes

Subjects

Content preview

MOUVEMENT DANS UN CHAMP UNIFORME

aspect énergétiques et phénomènes mécaniques
·




=>
expression du travail dans le cas d'une force constante :
WAB(E) =* x-
B =
-



x- Bxcos() en J .




pen
=

energie mécanique -m
-


: = -c +


=
théorème l'énergie cinétique
de : dans un référentiel galiléen
-

c =
WAB(=) soit c(B) - --
c(A) =
VAB(=)
=
conservation et non de
l'énergie mécanique : -m =
WAb(nc
-



ou - -



T) -

SUC --
PUT-02-

Metheede Champ de pesanteur champ électrique

particule changé > dans
Système + masse m dans référentiel 0

référentiel terrestre condensateur

2

Bilan des x mxg Fél qx
-
avec UABLenV)
j
=
=
=




fonce en V .
m
-1
d (en m)




E E
Cloi
de (H) = )



a = x
E E Ext
H)
Vx(t) =
vox((x) Vo x les (x)

ü(t) vy(t) =
-



gxt + voxsim(x) + VoxnLa

vz(t) = o

équation


E H
horaire Voxcl les(x) xt


Et
= vox

-
=

-axt + voxsin()xt -Ex
⑧ 2(t) = 0




chute d'un objet vitesse initiale VIH -gxt 1gxt ?
! sans : et y (H)
-

= =




la de tir 450
portée maximale
l'angle
~
pour C =




'
as
particules chargées d'un champ électrique uniforme
le sens de déviation dépend du signe de la charge de la
particule
=>




+ + + t +



+
+ + + + + + - +


+ >
-




u V
x
To -V
7 7 7 >
>

=
-


V
>
-




>
-




- - - - - - - - - -
V
----------

alors
dirigée las 9/0 dirigée
-
alors vers le y >0
-
Si 970 /0 si
y vers

le haut
:
3 - C3
.




--
- -

26 QU-

de
·
conservation l'énergie mécanique : -m =
-


c + -



pen)
rappel : -c = mxV et
-




pp =
mxgxh
*
=- m et -




pélec =
qxV = Volt (V)

Kg m .
S-1 ↑ C
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