Corso Astronomia - Lezione 5
Quiz
•
Science
•
9th Grade - University
•
Practice Problem
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Medium
Roberto Ciri
Used 4+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una stella di magnitudine apparente +5 è più luminosa o più debole di una +2?
più luminosa
più debole
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La luminosità intrinseca di una stella dipende da:
dal raggio della stella e dalla sua temperatura
solo dalla sua temepratura
solo dalla sua massa
dal raggio, dalla temperatura e dalla massa
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le 7 classi spettrali principali sono:
O, A, B, W, C, L, M
O, B, A, F, G, K, M
O, T, K, M, B, N. A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se aumenta la frequenza della radiazione elettromagnetica l'energia ad essa associata:
aumenta
diminuisce
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un anno luce corrisponde a:
9.460 milioni di km
9.460 miliardi di km
9.460 miliardi di miliardi di km
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Il colore rosso di una stella indica che è:
poco calda
molto calda
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Il Sole quale di queste fasi passerà?
Gigante rossa, nana bruna, nana nera
Supergigante rossa, nebulosa planetaria, nana bianca
Gigante rossa, nebulosa planetaria, nana bianca
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