La propagation du son
Authored by Alexandre Buffenoir
Physics, Science
5th Grade
Used 32+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
L'intensité sonore s'exprime en
ampère
décibel
sono-ampère
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Un son devient dangereux à partir de ...
125 dB
105 dB
85 dB
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
La fréquence d'un son
est le nombre de vibration par seconde
correspond à son volume
correspond à sa hauteur
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'unité de la fréquence c'est ...
le hertz
la seconde
le décibel
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les basses fréquences correspondent-elles à un son grave ou aigu ?
grave
aigu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les hautes fréquences correspondent-elles à un son grave ou aigu ?
grave
aigu
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'oreille entend des sons de fréquence ...
inférieure à 20 Hz
comprise entre 20 Hz et 20 000 Hz
comprise entre 20 Hz et 100 000 Hz
supérieure à 50 000 Hz
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