
Propriedades do Som e Nível Logarítmico
Authored by Honório Neto
Architecture
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Qual das imagens abaixo representa corretamente a reflexão de um raio sonoro num anteparo côncavo?
2.
DRAW QUESTION
3 mins • 1 pt
Identifique no gráfico abaixo as zonas de compressão, rarefação e o ponto de equilíbrio de uma onda sonora qualquer.
3.
FILL IN THE BLANK QUESTION
3 mins • 2 pts
Um som complexo é composto por
4.
FILL IN THE BLANK QUESTION
3 mins • 2 pts
Um som puro é composto por
5.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Qual dos gráficos abaixo representa corretamente a excitação sonora de um ambiente fechado?
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Qual o comprimento de onda para uma frequência de 250 Hz, considerando a velocidade do som de 343 m/s?
0,73 m
85,75 m
1,37 m
7.
MULTIPLE CHOICE QUESTION
5 mins • 3 pts
Dois amplificadores de igual potência são postos lado a lado. Quando ligados, cada um emite 60 dB. Qual o nível de pressão sonora (NPS) final?
120 dB
63 dB
60 dB
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