White Dwarfs & Planetary Nebulae

Front

Currently, the Sun is fusing ___

Back

hydrogen into helium

Front

Eventually, the Sun will fuse helium into carbon, along with a dash of ___

Back

oxygen and neon

Front

The Sun's power will be switched off once the core is nearly pure ___

Back

carbon

Front

How long from now until the Sun’s outer layers are gone and our star is just its core? Options: about 8 million years, about 80 million years, about 8 billion years, about 80 billion years

Back

about 8 billion years

Front

Once helium fusion stops, the dominant force in supporting the core of a star is called ___

Back

electron degeneracy pressure

Front

The Sun, when its core has contracted to about the size of Earth, will be classified as ___

Back

a white dwarf

Front

A single cubic centimeter of a white dwarf, the size of a six-sided die, has a mass of ___

Back

a million grams — one metric ton

Front

If you have a mass of 75 kg, and you stood on the surface of a white dwarf, you’d weigh ___

Back

7,500 tons

Front

Because white dwarfs are so small, they’re actually ___

Back

quite faint

Front

An expanding, glowing shell of gas around an aging star is called ___

Back

a planetary nebula