
Ondas
Authored by JOAO TROVO
Science
9th Grade
Used 1+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é uma onda?
Uma perturbação que se propaga pelo espaço, que transporta energia sem o transporte de matéria.
Uma perturbação que se propaga pelo espaço, que transporta matéria sem o transporte de energia.
Um movimento de partículas que se propaga pelo espaço, transportando matéria.
Um fenômeno que altera o estado de um sistema.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a distância entre duas cristas de uma onda chamada?
Amplitude
Vale
Crista
Comprimento de onda
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a unidade de frequência que representa o número de cristas por segundo?
A) Metro
B) Segundo
C) Hertz (Hz)
D) Joule
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como são chamadas as ondas de baixa frequência (<20 Hz)?
Infrassom
Ultrassom
Micro-ondas
Eco
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como são chamadas as ondas de alta frequência (>20000 Hz)?
Ultrassom
Infrassom
Micro-ondas
Eco
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a faixa de frequência do infrassom?
Menor que 20 Hz
Maior que 20000 Hz
Entre 20 Hz e 20000 Hz
Exatamente 20000 Hz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O ouvido humano consegue perceber o ultrassom?
Não
Sim
Apenas em algumas situações
Apenas com aparelhos especiais
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