White Dwarf Stars

What will happen to the universe eventually?

• It will die slowly

• It will expand indefinitely

• It will turn into a giant star

• It will become a large galaxy

What is a white dwarf?

• The core of a former star

• A type of black hole

• A new star being born

• A small planet

How do medium-sized stars like our Sun end their life?

• Becoming white dwarfs

• Turning into red giants

• Collapsing into black holes

• Exploding into a supernova

What is the surface gravity of a white dwarf compared to Earth?

• The same as Earth

• About 100 times higher

• Lower than Earth

• About 100,000 times higher

What happens to a planet orbiting very close to a white dwarf?

• It will explode

• It turns into a star

• It becomes tidally locked

• It gets warmer

Why do white dwarfs shine for a long time?

• They are very hot

• They have a lot of gases

• They rotate quickly

• They are very large

What is the fate of the universe described as?

• Infinite expansion

• Heat death

• Big Crunch

• Stellar rebirth

What could black dwarfs eventually become according to some theories?

• Galaxies

• New universes

• Ion spheres

• Black holes

What is the estimated lifespan of a white dwarf?

• 100 million years

• 1 billion years

• 100 billion billion years

• 10 trillion years

What is the main reason life around a white dwarf is considered unlikely?

• Too much light

• Too much radiation

• Too cold

• Extreme gravity