
Emission et perception d'un son
Authored by margot lhomme
Physics
2nd Grade

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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le son peut se propager dans le vide
VRAI
FAUX
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De quoi a besoin le son pour se propager ?
De l'air
Un matériau
Une enceinte
Une oreille
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On mesure l'intensité du son grâce à quel appareil ?
Voltmètre
Multimètre
Sonomètre
Thermomètre
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On mesure le niveau sonore en ...
Volts V
Mètre par seconde m/s
Décibels dB
Hertz Hz
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la formule de la vitesse ?
v = dxT
d = vxT
v = d/T
T = d/v
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Pour émettre un signal sonore il faut :
Une corde qui vibre.
Une caisse de résonance.
Un microphone.
Un objet vibrant.
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Parmi les exemples ci-dessus, quels sont les émetteurs de signaux sonores.
a.
b.
c.
d.
e.
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