O som I
8th Grade - Professional Development
•31 Qs
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O som I
Quiz
•
Science, Physics, Professional Development
•
8th Grade - Professional Development
•
Practice Problem
•
Medium
Catia Costa
Used 3+ times
FREE Resource
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31 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Este instrumento é um instrumento de ...
... cordas
... sopro
... percussão
... teclas
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um piano produz o seu som característico quando vibram...
as suas cordas
o corpo do piano
o ar dentro do piano
as suas teclas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O som é uma onda de pressão porque é produzido por ....
partículas que vibram e chocam
radiações eletromagnéticas
partículas que vibram sem chocar
partículas que chocam sem vibrar
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número de vibrações que ocorrem num segundo, chama-se...
comprimento de onda
período
amplitude
frequência
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A unidade de frequência no Sistema Internacional (SI) é o...
... segundo (s)
... hertz (Hz)
... metro por segundo (m/s)
... decibel (dB)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um diapasão tinha a indicação 470 Hz. O que significa que ...
... o diapasão pesa 470 gramas
... o diapasão custa 470 euros
... o diapasão tem uma amplitude de 470 mm
... o diapasão tem uma frequência de 470 Hz
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A velocidade do som varia dependendo do estado físico do meio em que se propaga.
Em relação à velocidade de propagação, qual das opções é correta?
sólidos > gasosos > líquidos
líquidos > gasosos > sólidos
gasosos > sólidos > líquidos
sólidos > líquidos > gasosos
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