Nuclear fusion Flashcards
1
Q
what is nuclear fusion
A
when 2 nuclei join together to form a larger one
2
Q
how is energy released in stars
A
by nuclear fusion
3
Q
how do stars form
A
when dust and gas from space are pulled together
4
Q
why is a star stable during the main sequence of its life cycle
A
because the forces within it are balanced
5
Q
what does the life cycle of a star depend on
A
the size of the star
