
Ondas e Fontes de Luz
Science
9th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções é uma característica das ondas?
Elas podem se propagar apenas no vácuo.
Elas transportam energia sem transportar matéria.
Elas são sempre visíveis a olho nu.
Elas não podem ser refletidas.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal fonte primária de luz para a Terra?
A Lua
As estrelas
O Sol
Os vulcões
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções é uma fonte de luz secundária?
Relâmpago
Vela apagada
Vaga-lume aceso
Estrela
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a unidade de medida da frequência de uma onda?
Metros (m)
Segundos (s)
Hertz (Hz)
Joules (J)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções é uma fonte de luz primária?
Lâmpada desligada
Bola
Vaga-lume aceso
árvore
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das alternativas apresenta uma fonte de luz primária e uma fonte de luz secundária, respectivamente?
Vela acesa e Sol
Lua e Sol
Vela acesa e Lua
Lua e Terra
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes opções é uma fonte de luz secundária?
Sol
Bola
Fogo
Estrela
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