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Voyons ce qui arrive à la stabilité de votre pont lorsque nous
enlevons les câbles. Enlevez les flexibles verts de votre modèle
afin qu’ils ne soient construits qu’à l’étape 6.
Maintenant que vous avez construit le pont
suspendu, explorons votre modèle !
79433
Activité du pont suspendu
(
FR
)
Français
1. Placez une charge au centre du pont. Quel est le poids
maximum que le pont peut supporter avant de seondrer?
Enregistrez votre observation.
2. Où étaient les parties les plus faibles du pont, c’est-à-dire
quelles parties l’ont fait seondrer? Pourquoi pensez-vous
que cela est arrivé ?
3. Cette structure est-elle stable ou instable telle qu’elle est
actuellement construite ?
Maintenant, ajoutons les câbles et voyons ce qu’il se passe!
Ajouter les tiges vertes sur vos ponts, en suivant les étapes
7 à 9 des instructions.
1. Répétez la première étape.
2. La capacité de charge de votre pont a-t-elle augmenté,
diminué ou est-elle restée la même ? Pourquoi pensez-vous
cela est ?
3. Qu’avez-vous remarqué à propos de la forme du pont
maintenant que vous avez fixé les câbles ?
4. Comment les câbles ont-ils aecté la stabilité de votre pont ?
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