Teste de Química e Física 8ºano (Som e Luz)
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Eduardo Gomes
Used 9+ times
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36 questions
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1.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Como se designa o tipo de onda do som?
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
A intensidade de um som...
pode ser medida em Hertz (Hz) ou megahertz (MHz)
pode ser sentida em qualquer meio
pode ser medida em decibéis (dB)
pode ser detetada num osciloscópio
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O timbre permite distinguir sons puros
Verdadeiro
Falso
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O som, à medida que se espalha, vai perdendo energia. Por isso, quando estamos longe de uma fonte sonora, o som que nos chega tem muito menor frequência e pode mesmo ser inaudível.
Verdadeiro
Falso
5.
OPEN ENDED QUESTION
1 min • 1 pt
Onde é que o som não se propaga?
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6.
FILL IN THE BLANK QUESTION
45 sec • 2 pts
Como se chama o atributo do som que permite distinguir a mesma nota musical em instrumentos diferentes?
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Como se chama o aparelho usado para medir o nível sonoro?
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