Ondas, Som, Luz e Espelhos Planos
11th Grade
•20 Qs
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Ondas, Som, Luz e Espelhos Planos
Quiz
•
Physics
•
11th Grade
•
Practice Problem
•
Medium
Flávio Cunha
Used 2+ times
FREE Resource
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20 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
O som tem velocidade de 340 m/s no ar. A nota dó tem frequência igual a 262 Hz. Qual é o comprimento de onda dessa nota musical no ar?
Atenção: arredonde para 2 casas decimais. P. ex.: 4,3567... = 4,36 m; outro ex.: 2,7834229... = 2,78 m.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
O som tem velocidade de 340 m/s no ar. A nota mi tem frequência igual a 330 Hz. Qual é o comprimento de onda dessa nota musical no ar?
Atenção: arredonde para 2 casas decimais. P. ex.: 4,3567... = 4,36 m; outro ex.: 2,7834229... = 2,78 m.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
O som tem velocidade de 340 m/s no ar. Qual é a frequência de uma onda sonora com 1,5 m de comprimento no ar?
Atenção: arredonde para um número inteiro.
4.
DROPDOWN QUESTION
1 min • 1 pt
O som é uma onda de (a) do ar (portanto (b) ), e o comprimento de onda é a (c) entre essas compressões.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
O som tem velocidade de 340 m/s no ar. Qual é a frequência de uma onda sonora com 0,75 m de comprimento no ar?
Atenção: arredonde para um número inteiro.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um objeto reflete todo o espectro eletromagnético visível, de que cor será visto se iluminado com luz branca?
Preto
Branco
Vermelho
Amarelo
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Em nossa retina há 3 tipos de neurônios sensíveis à luz, que se ativam conforme as cores recebidas forem próximas de quais?
Vermelho
Verde
Azul
Amarelo
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