
Ondes sonores
Authored by Y. Lefevre
Physics
9th - 12th Grade
Used 32+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La fréquence d'un son correspond à
sa hauteur
son intensité acoustique
son amplitude
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'amplitude du signal sonore correspond à
sa hauteur
son intensité acoustique
sa fréquence
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le son le plus aigu qu'un oreille humaine peut entendre a une fréquence de
20 Hz
200 Hz
2 000 Hz
20 000 Hz
200 000 Hz
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Quelles sont les formules correctes reliant célérité v, période T, fréquence f et longueur d'onde λ ?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
CALCUL... Les ultrasons ont une longueur d'onde
inférieure à 17 m
supérieure à 17 m
inférieure à 17 mm
supérieure à 17 mm
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
L'intensité acoustique I en W.m-2 se calcule :
I = P / S
I = P x S
I = S / P
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelles sont les ondes utilisées pour effectuer une échographie ?
les ultraviolets
les ultrasons
les infrarouges
les infrasons
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