Comment se déplacer dans un fluide?
Quiz
•
Physics
•
6th - 7th Grade
•
Practice Problem
•
Hard
Daniel Barret
Used 203+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans un liquide, la valeur de la force de poussée d’Archimède est toujours égale:
au poids de l'objet
au poids du liquide déplacé par l'objet
au poids total du liquide
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La force de poussée d'Archimède dépend de :
l'intensité de la pesanteur
la nature du liquide déplacé
la profondeur
la pression atmosphérique
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La force de poussée d'Archimède s'applique :
au centre de gravité
au centre de l'objet
au centre de poussée
au centre de flottabilité
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un objet flotte à la surface d'un liquide au repos. Il est soumis à son poids P et à la force de poussée d'Archimède F, alors:
P<F
P=F
P>F
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Une force pressante est une action :
exercée à distance
ponctuelle
répartie sur une surface
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
La force pressante F, la pression p et la surface pressée S sont liées par la relation:
F = P / S
F = p x S
p = F / S
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'unité de pression (S.I) est:
le bar
le kilogramme
le Newton
le pascal
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