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Qu'est-ce que les forces d'attraction et de répulsion? Ce sont les forces magnétiques qui attirent ou qui repoussent certains matériaux à distance
Qu'est-ce qui compose les substances magnétiques? Un élément ferromagnétique comme le fer, le cobalt, le nickel ou le gadolinium
Qu'est-ce qu'une boussole? Un insturment de navigation qui permet également de s'orienter grâce au champ magnétique terrestre et qui permet également de connaître la nature
Created by: pinez