Objectives Random Order Part 1 Final

Question 1

Hydrostatic equilibrium

Answer 1

When pressures outward push exactly counteracts gravity’s inward pull

Question 2

In a steadily burning star one the main sequence what does the outward pressure exerted by the hot gas do?

Answer 2

It balances the inward pull of gravity

Question 3

Nova

Answer 3

A violent explosion in the surface of a white dwarf in a binary system

Question 4

Supernova

Answer 4

A “star” that suddenly increases dramatically in brightness then slowly fades away

Question 5

For carbon fusion to occur what would have to happen?

Answer 5

Temperatures would have to exceed 600 million k

Question 6

Stars bigger than 10 solar masses don’t reach the red giant region before helium fusion begins

Answer 6

True

Question 7

Red supergiant

Answer 7

An extremely luminous red star

Question 8

Which stars have the strongest stellar winds?

Answer 8

Highly luminous super giants

Question 9

Helium fuses into what at the core eventually

Answer 9

Carbon and oxygen

Question 10

A star 20 Times note massive than the sun burns how?

Answer 10

1. Hydrogen for 10 million years
2. Helium for 1 million years
3. Carbon for 1000 years
4. Oxygen for a year
5. Silicon for a week

And it’s iron core grows for less than a day