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L'électromagnétisme

QuestionAnswer
Que sont les forces d'attraction et de répulsion? Des forces magnétiques qui attirent ou qui repoussent certains matériaux à distance.
Les forces magnétique ont un effet sur quoi? Sur les substances magnétiques.
Nom de différents cathégories dans lesquels on place les substances? Les subsatances magnétiques et les substances non magnétiques.
Les substances magnétiques sont constitué de quoi? D'éléments féromagnéyiques.
Ex: d'élments férmagnétiques? Le Fer, le Cobalt, le Nickel et le Gadolinium.
Qu,est-ce qu'un aimant? une substance qui possède un ferromagnétisme permanent.
La principale propriété des aimants? Il peuvent attirer ou repousser d'autres aimants.
Propriété d'aures substances qui possède un ferromagnétisme non permanent? Elles sont atirées par les aimants. Donc elles deviennent temporairement des aimants et peuvent attirer d'autres substances magnétiques, lorsqu'elle sont à proximité d'un aimant.
Ex: de substances non magnétiques? Les matières plastiques, le bois, l'aluminium, le cuivre et la céramique.
Caractéristique des substances non magnétiques? Ne contiennent pas d'éléments ferromagnétiques et elles ne subissent aucun effet placées à proximité d'un aimant.
Created by: Chichi Kawaii
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