space Flashcards
1
Q
how is a white dwarf produced
A
a red giant becomes unstable and ejects its outer layers of gas
2
Q
what happens to a star bigger than the sun after exploding in a supernova
A
either leaves behind a dense core called a neutron star or if very big, black hole
3
Q
when are elements heavier than iron produced
A
when a star becomes a supernova
4
Q
is a satellite closer or further away from earth going to move faster
A
close, stronger gravitational pull so has to travel faster to stay in its orbit
5
Q
what does it mean if the light from distant galaxies is red-shifted
A
the wavelength of light is longer than it should be
