
Fenómenos acústicos e suas aplicações

Quiz
•
Physics
•
8th Grade
•
Easy
Corrente elétrica marinadias10@
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FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Reflexão do som é...
repetição de um som
quando as ondas sonoras encontram uma superfície e a atravessam
quando o som encontra uma superfície de um obstáculo e volta para trás
quando o som é absorvido
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
A velocidade do som que incide numa superfície é...ao do som refletido.
maior
menor
igual
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Há sempre reflexão do som
verdadeiro
falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
A amplitude do ângulo de reflexão é... relativamente à amplitude do ângulo de incidência.
maior
menor
igual
metade
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Animal que emite ultrassons
cão
morcego
rato
leão
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Para existir eco o obstáculo encontra-se pelo menos a...da fonte sonora
5m
10m
17m
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
A reverberação corresponde ao prolongamento da audição de um som
verdadeiro
falso
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