Som
Quiz
•
Physics
•
2nd Grade
•
Practice Problem
•
Hard
Vânia Parente
Used 34+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O som é uma onda de pressão porque é produzido por ...
partículas que vibram e chocam
partículas que vibram sem chocar
radiações eletromagnéticas
partículas que chocam sem vibrar
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O período e a frequência da onda representada no gráfico são, respetivamente:
0,05 s; 200Hz
0,10 s; 10 Hz
0,05 s; 20 Hz
0,10 s; 0,20 Hz
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O número de vibrações que ocorrem num segundo, chama-se...
Comprimento de onda
Amplitude
Frequência
Período
4.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Uma pessoa que murmura produz um som
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Os morcegos para detetarem as suas presas emitem sons que no espetro sonoro se encontram na zona
dos infrassons
do audível
dos ultrassons
dos decibéis
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O fenómeno acústico do eco é..
A reverberação do som
A refração do som
A absorção do som
A reflexão do som
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A velocidade de propagação do som em diversos meios relaciona-se pela expressão
vsólidos>vlíquidos>vgases
vsólidos>vgases>vlíquidos
vlíquidos>vgases>vsólidos
vgases>vliquidos>vsólidos
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