
trabalho de ciencias
Authored by Thiago Ribeiro Mendes
Science
9th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
quem foi o cientista que propôs o modelo do átomo com nucleo central rodeado por elétrons
albert einstein
niels bohr
ernest rutherford
oswaldo cruz
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
qual a unidade de medida da frequencia de uma onda
hertz (hz)
metros (m)
centimetros (cm|)
decibeis (db)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a velocidade aproximada do som no ar a temperatura ambiente
300 m|s
343 m|s
400 m|s
500 m|s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
qual e a unidade de medida da frequência de uma onda sonora
watts
hertz
decibes
joules
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que determina a aultura de um som
Amplitude da onda sonora
Frequência da onda sonora
Velocidade da onda sonora
Duração da onda sonora
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dessas não são características das ondas eletromagnéticas
Transportam energia
São formadas por oscilações de campos elétricos e magnéticos
Precisam de um meio material para se propagarem
Viajam na velocidade
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
qual e o nome dado a distancia entre dois picos consecutivos em uma onda eletromagnética
amplitude
periodo
comprimento da onda
frequencia
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