LUZ_8.º ano
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Medium
Carla Araújo
Used 9+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A luz propaga-se...
...só no vazio.
...só em meios materiais.
...em meios materiais e no vazio.
...só em meios gasosos.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Completa a frase seguinte:
Os materiais (1) são aqueles que se deixam atravessar praticamente por toda a luz visível que neles incide.
opacos.
claros.
transparentes.
translúcidos.
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Diz o que entendes por espetro eletromagnético.
Evaluate responses using AI:
OFF
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A velocidade da luz no vazio é...
...300000 m/s
...300000 km/s
...30000 km/s
...300 km/h
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
O som e a luz propagam-se a partir de ondas.
Estas têm determinadas características.
Assinala as opções corretas.
Frequência e amplitude.
Velocidade e amplitude.
Amplitude e temperatura.
Comprimento de onda e massa.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um corpo que emite luz própria é...
...um recetor de luz.
...uma fonte de luz.
...um triangulo de luz.
...refletor de luz.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Supõe que o Sol deixava subitamente de emitir luz. Um observador na Terra, ao olhar para o céu veria:
os planetas.
as outras estrelas.
a Lua.
apenas escuridão.
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