Prova 1
Quiz
•
Physics
•
11th Grade
•
Hard
Nora Fer
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Quines estrelles són les més calentes?
Grogues
Blaves
Taronges
Blanques
Vermelles
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
El gas que forma les estrelles es manté unit per l'equilibri entre forces que els atreuen cap endins provocades per ..............(1)................... i forces cap enfora provocades per .................(2)......................
(1) la gravetat
(2) les reaccions de fisió
(1) les reaccions de fisió
(2) la gravetat
(1) la gravetat
(2) les reaccions de fusió
(1) les reaccions de fisió
(2) la gravetat
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Classificació de les estrelles segons el sistema de Morgan-Keenan
OBAMKFG
OBAGFKM
OBADGKM
OBAFGKM
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
El Sol correspon al tipus espectral:
K
B
F
G
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
El diagrama de Hertzsprung-Rusell relaciona la temperatura de le les estrelles amb:
La lluminositat respecte al Sol
La massa respecte al Sol
El pes respecte al Sol
La temperatura respecte al Sol
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Una estrella com el Sol, quant de temps romandrà aproximadament a la seqüència principal?
100 milions d'anys
100 mil milions d'anys
10 mil milions d'anys
100 mil anys
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A la part superior dreta del diagrama de Hertzsprung-Rusell trobem:
Les nanes blanques
Les supergegants vermelles
Les nanes blaves
La seqüència principal
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