son et protection
Quiz
•
Science
•
6th - 8th Grade
•
Medium
Sophie Rodrigues
Used 16+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La fréquence d’un son de période 0,002 s est :
2000 Hz
1000 Hz
5000 Hz
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le signal sonore qui a pour fréquence 10 000 Hz est un son :
aigu
médium
grave
inaudible
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cocher le son le plus grave :
son de fréquence 440 Hz
son de fréquence 1000 Hz
son de fréquence 5000 Hz
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cocher l'unité du niveau d’intensité acoustique
le hertz
le décibel
la tension
le volume
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un isolant phonique :
améliore la perception des sons venant de l’extérieur.
absorbe une partie de l’énergie mécanique qu’il reçoit des signaux sonores.
accentue les nuisances dues aux signaux sonores.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pour déterminer la période d’un signal sonore, on utilise
un oscilloscope
un voltmètre
un sonomètre
un GBF
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pour déterminer le niveau d'intensité acoustique d’un signal sonore, on utilise
un oscilloscope
un voltmètre
un sonomètre
un GBF
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