Neutron Stars and Their Phenomena

What is the primary reason stars exist?

• Due to the presence of black holes

• Due to the presence of dark matter

• Because of a fragile balance between gravity and fusion energy

• Because of the Big Bang

What happens when a medium star like our Sun exhausts its hydrogen?

• It turns into a neutron star

• It collapses into a black hole

• It goes through a giant phase and eventually becomes a white dwarf

• It explodes into a supernova

What element is considered 'nuclear ash' and cannot be fused?

• Silicon

• Carbon

• Iron

• Helium

What is the approximate diameter of a neutron star?

• 10 kilometers

• 100 kilometers

• 25 kilometers

• 1000 kilometers

What is the temperature of the surface of a neutron star?

• 10,000,000 degrees Celsius

• 1,000,000 degrees Celsius

• 100,000 degrees Celsius

• 6,000 degrees Celsius

What is 'nuclear pasta'?

• A type of supernova

• A form of matter with protons and neutrons arranged in long cylinders or sheets

• A type of black hole

• A type of neutron star

What happens to neutron stars when they first collapse?

• They turn into black holes

• They stop spinning

• They begin to spin very fast

• They explode immediately

What are magnetars?

• Neutron stars with the strongest magnetic fields in the universe

• A type of black hole

• A type of white dwarf

• A type of supernova

What is a kilonova explosion?

• A type of black hole formation

• An explosion of a single neutron star

• A collision and explosion of two neutron stars

• A type of supernova

What is the origin of most of the heavy elements in the universe?

• Fusion in medium stars

• Supernova explosions

• Formation of black holes

• Kilonova explosions