O estudo das ondas e do som

Quiz
•
Physics
•
9th Grade
•
Hard
Tayná Simões
Used 27+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vê-se um relâmpago; depois ouve-se o trovão. Isso ocorre porque:
O som se propaga no ar
A luz do relâmpago é muito intensa
A velocidade do som no ar é de 340 m/s
A velocidade do som é menor do a da Luz
Se esse fenômeno ocorresse no vácuo, o som do trovão e a luz, o som do trovão e a luz do relâmpago chegariam juntos.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para atrair um filhote de golfinho, emite-se um ultrassom com frequência de 25.000 Hz, que se propaga na água a uma velocidade de 1500 m/s. Qual é o comprimento de onda desse ultrassom na água?
0,06
6 m
16,67 m
0,6
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