
Física 2
Authored by Eliza Andreolla
Specialty
3rd Grade
Used 3+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Qual é a principal fonte de energia que mantém o Sol brilhando?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Além de hélio, quais são os produtos gerados pela fusão termonuclear no núcleo do Sol?
Pósitrons e prótons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“Nas primeiras fases da evolução estelar, as estrelas são compostas basicamente por hidrogênio e hélio. Os demais elementos são formados, principalmente na sequência principal de sua existência e após esta fase.”
Assim como o hélio, os demais elementos são formados pelo processo de fusão nuclear.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No processo de fusão nuclear, que ocorre no núcleo de uma estrela, os átomos de hidrogênio transformam-se em:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a diferença entre astronomia e astrologia?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em quais contextos, os conhecimentos advindos das observações astronômicas exerce influência?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Assinale a alternativa correta em relação ao parsec:
Parsec é uma unidade de distância medida a partir do ângulo de paralaxe de 1 arco de segundo formado entre a Terra e o Sol.
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