Som e ondas sonoras
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Hard
Dario Vaz
Used 150+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O som inicia-se pela vibração da fonte sonora. Num piano, a fonte sonora é...
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ao tocar na corda de uma guitarra, esta vibra "empurrando" os corpúsculos de ar vizinhos com...
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Uma vela acesa próxima de um altifalante que emite música, oscila para a esquerda e para a direita alternadamente. Isto prova que os corpúsculos do ar...
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
As ondas sonoras são ondas __________ pois a direção de propagação da onda é ____________ à direção de vibração dos corpúsculos do ar.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Considera a onda sonora de pressão esquematizada na figura, e os pontos A, B e C. A ordem crescente de pressão corresponde à sequência dos pontos...
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Em muitos filmes de ficção científica, há erros científicos como, por exemplo,...
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Um barquinho que flutua sobre a água, sobe e desce, sujeito às ondas que passam. O comprimento de onda e a amplitude da onda representada é...
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