Dark Matter and Black Holes Quiz

What percentage of the universe's mass is made up of dark matter?

• 100%

• 20%

• 50%

• 80%

What is the main hypothesis discussed for explaining dark matter?

• Dark matter is a type of radiation

• Dark matter is composed of black holes

• Dark matter is a form of energy

• Dark matter is made of exotic particles

What are primordial black holes theorized to have formed from?

• Supernovae

• Density fluctuations in the early universe

• Dark energy

• Collisions of galaxies

What is the main challenge in proving the primordial black hole hypothesis?

• Insufficient funding

• Need to rule out the entire mass range

• No theoretical basis

• Lack of technology

Why can't supermassive black holes be the main component of dark matter?

• They evaporate quickly

• They are too small

• They fall to the centers of galaxies

• They are too bright

What method is used to detect MACHOs?

• Infrared imaging

• Spectroscopy

• Radio waves

• Microlensing

What percentage of the Milky Way halo's mass might be dark, compact objects?

• 50%

• 5%

• 20%

• 10%

What is a potential consequence of a primordial micro-black hole passing through a white dwarf?

• It would cool the star

• It would increase the star's mass

• It would ignite a supernova

• It would cause the star to collapse

What are Planck relics speculated to be?

• Dark energy particles

• Neutron stars

• Tiny naked singularities

• Large black holes

What does the potential existence of Planck relics imply about dark matter?

• It is made of antimatter

• It is easily detectable

• It is composed of visible matter

• It is essentially undetectable