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L’énergie la science et ses composantes

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Présentation sous forme de diapositives annotées clairement avec des exemples qui permettent de comprendre la matière.

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2025-02-24




CHAPITRE 2 – ÉNERGIE

Objectif
 Qu’est-ce que l’énergie

 Les unités d’énergie

 Les diverses formes d’énergie

 La conservation de l’énergie

 La puissance




1
2025-02-24 19:25 par J-F Chabot et autres




QU’EST-CE QUE L’ÉNERGIE ?
L’énergie est une quantité physique abstraite,
qui correspond à la capacité de générer un
mouvement et de transformer les objets.




2
2025-02-24 19:25




1

, 2025-02-24




QU’EST-CE QUE L’ÉNERGIE ?
EXEMPLE
Une voiture utilise l’énergie de l’essence pour se
déplacer .




3
2025-02-24 19:25




QU’EST-CE QUE L’ÉNERGIE ?
EXEMPLE
On dépense de l’énergie pour écraser une
cannette




4
2025-02-24 19:25




2

, 2025-02-24




QU’EST-CE QUE L’ÉNERGIE ?
EXEMPLE
Quand on manque d’énergie (fatigue), on est
amorphe.




5
2025-02-24 19:25




LES UNITÉS D’ÉNERGIE
LE JOULE (J)
Le joule est l’unité de
l’énergie dans le
système international
des unités (SI). C’est
l’unité qu’on utilisera
par défaut.



6
2025-02-24 19:25




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