White Dwarfs

What is a white dwarf?

• A type of planet

• A dying remnant of a star

• A newly formed star

• A type of galaxy

What percentage of stars in the Milky Way will become white dwarfs?

• 95%

• 75%

• 50%

• 100%

What is the primary reason our sun is not currently a white dwarf?

• It is too far from the center of the galaxy

• It generates enough energy through nuclear fusion

• It is too small

• It is too young

Tags

NGSS.HS-ESS1-1

What happens when a star like our sun runs out of hydrogen fuel?

• It uses helium as a new fuel source

• It becomes a black hole

• It becomes a planet

• It explodes

Tags

NGSS.HS-ESS1-1

What prevents a white dwarf from compressing indefinitely?

• Magnetic fields

• Degenerate electrons

• Thermal energy

• Nuclear fusion

What is another name for a white dwarf?

• Supernova

• Degenerate dwarf

• Neutron star

• Red giant

What is predicted to form as a white dwarf cools?

• A new star

• A nebula

• Gigantic crystals of carbon and oxygen

• A black hole

What is the weight of one teaspoon of white dwarf matter on Earth?

• 5 tons

• 5 stone

• 5 kg

• 5 lbs

How much would the average person weigh on the surface of a white dwarf?

• 50,000 pounds

• 50 pounds

• 50,000,000 pounds

• 500,000 pounds

Tags

NGSS.HS-PS2-4

What is a black dwarf?

• A newly formed star

• An end-stage white dwarf with a low temperature

• A type of galaxy

• A type of planet