ASTR 122 Exam 3 Review 1

As much as 95% of the mass in our universe consists of_____?

• Hydrogen

• Stellar Matter

• Dark Matter

• Lightwaves

Old stars with few heavy elements are referred to as ______?

• Galaxy formations

• Population II stars (halo & globular cluster)

• Neutron Stars

• Infant Formations

Matter that reaches
the maximum density that can be supported.

• Dark Matter

• Degenerative Matter

• Physical Matter

• Stellar Matter

When two massive stars form
in a binary and leave behind
neutron stars after their type II
supernovae, the neutron stars

• drift towards each other

• spiral away from each other

• repel each other

• spiral around in a circle

I am traveling at half the speed of light. I see light traveling

• slower than the speed of light

• faster than the speed of light

• the same speed as me

• the speed of light

To reach escape velocity, you generally need

• small mass, small radius

• small mass, large radius

• large mass, small radius

• large mass, large radius

What things matter about blackholes? More than 1

• mass

• charge

• energy

• spin

The center of a galaxy is called the

• Stellar middle

• Galactic bulge

• Center Mid

• Universe Middle

The best way to look for stars through the disk of the Milky Way is _____ light

• gamma rays

• ultraviolet

• x-ray

• Infrared

What is a kilonova?

• Neutron degenerate matter that unbinds and is released into space

• Dark matter that has exploded into a neutron star

• A globular cluster that has collapsed due to its gravity

• A group of stars that collapse around its center of mass