Revisão 7º Ano 4BIM
Quiz
•
Physics
•
7th Grade
•
Practice Problem
•
Hard
Cleber Costa
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O som é que tipo de onda?
Transversal e Mecânica
Longitudinal e Eletromagnética
Transversal e Eletromagnética
Longitudinal e Mecânica
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma onda sonora com frequência de 25.000 Hz é classificada como:
Infrassom
Som audível
Ultrassom
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma onda sonora com frequência de 500 Hz é classificada como:
Infrassom
Som audível
Ultrassom
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma onda sonora com frequência de 15 Hz é classificada como:
Infrassom
Som Audível
Ultrassom
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marque a opção na qual represente o meio cujo som tem maior velocidade.
Água
Concreto
Ar
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O eco é um fenômeno acústico ligado à reflexão do som e pode ser facilmente observado em um apartamento vazio, onde o som da nossa voz fica mais intenso.
Certo
Errado
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Os respectivos ângulos de reflexão, a, b e c são:
90°, 30° ,40°
0º, 30°, 40°
0°, 30°, 50º
90º, 30°, 50°
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