21 Low Mass Stars

Front

Very roughly speaking, we can divide stars into two groups: ___

Back

low mass stars, and high mass stars

Front

The dividing line between low mass stars and high mass stars lies around ___

Back

eight times the mass of the Sun

Front

During the fusion of hydrogen, four protons, plus some other ingredients, get turned into ___

Back

one helium nucleus

Front

A higher mass star squeezes hydrogen harder, so ___

Back

it fuses more quickly

Front

For a star, the lower its mass, ___

Back

the longer it lives

Front

How long can a really low mass red dwarf last? Options: a thousand years, a million years, a billion years, a trillion years

Back

a trillion years

Front

When a low mass red dwarf dies, it will be nearly pure ___

Back

helium

Front

With stars like the Sun, the material in the core ___

Back

stays in the core

Front

What is the total life span of the Sun?

Back

about twelve billion years

Front

The Sun's cores is getting ___

Back

denser and hotter