Quiz on Ultramassive Black Holes

What is the name of the supermassive black hole at the center of our galaxy?

• Andromeda B*

• Holm 15A

• Ton 618

• Sagittarius A*

How much more massive can ultramassive black holes be compared to Sagittarius A*?

• 1 million times

• 100 times

• 10 times

• 1,000 times

What is the estimated mass of the black hole known as Ton 618?

• 66 billion times the mass of the Sun

• 10 billion times the mass of the Sun

• 44 billion times the mass of the Sun

• 33 billion times the mass of the Sun

What phenomenon occurs when an object falls into a stellar mass black hole?

• Quantum tunneling

• Time dilation

• Black hole evaporation

• Spaghettification

What is the term used for black holes that are theorized to be larger than 270 billion solar masses?

• Supermassive black holes

• Intermediate mass black holes

• Stupendously large black holes

• Ultramassive black holes

What telescope is providing new insights into the growth of black holes?

• Hubble Space Telescope

• James Webb Space Telescope

• Kepler Space Telescope

• Chandra X-ray Observatory

What type of black holes are formed from very massive stars collapsing?

• Micro black holes

• Ultramassive black holes

• Stellar mass black holes

• Intermediate mass black holes

What is the boundary around a black hole called, beyond which nothing can escape?

• Photon sphere

• Accretion disk

• Singularity

• Event horizon