FORMATION OF UNIVERSE Flashcards
1
Q
when was universe believed to have formed
A
14 bill yrs ago
2
Q
what event is believed to form earth
A
big bang
universe began as huge amount of energy which suddenly expanded at unimaginable speed from a single point to create everything that currently exist
3
Q
believed formation of hydrogen/helium atoms
A
as temp cooled after bang, energy in newly formed universe became mass in form of hydrogen atoms
as universe expanded, some of those hydrogen atoms combined to from helium atoms
4
Q
believed formation of galaxies/stars
A
13bill
galaxies
gravity pulled together hydrogen/helium atoms
star
nebulae collapses due to gravity
5
Q
nebulae def
A
hydrogen/helium clouds with some space dust
