
Le son - révision
Authored by Alexandre Buffenoir
Physics, Science
3rd Grade
Used 22+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Le son peut se propager ...
dans un milieu matériel (air, eau, ...)
dans le vide
les deux
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Je coche les exemples d'émetteurs sonores
instruments de musique
microphone
antenne
cordes vocales
haut-parleur
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Je coche les exemples de récepteurs sonores
instrument de musique
microphone
oreille
cordes vocales
haut-parleur
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
L'intensité d'un son est exprimée
en hertz
en décibel
en ampère
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le niveau sonore est dangereux à partir de
75 dB
85 dB
100 dB
120 dB
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Quelles pratiques présentent un danger pour l'audition ?
Volume excessif
Bruit brutal
Sons aigus
Écoute prolongée
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Coche les situations qui augmentent les risques auditifs :
Baladeurs
Écoute à volume élevé
Concerts, boîte de nuit
Faire partie d’un groupe
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