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Stars are formed from big clouds of gas and dust is known as:
dust cloud
space fog
neutron clouds
nebulae
The main force acting on a nebula is:
thermal expansion
singularities
gravity
microscopic adhesion
A star is born when:
nuclear fusion starts
a nebula becomes a protostar
gases in a nebula condense
hydrogen is used up in fusion processes
The two forces battling it out for the stability of a star are gravitational forces and:
singularity expansion
chemical bonding forces
tidal currents
thermal forces (heat) through convection
A star that has ignited and has used up all of the hydrogen is called:
Neutron Star
White Dwarfs
Red Giants
Black Holes
When the core of a Red Giant collapses it becomes a:
White Dwarf
Supernova
Red Supergiant
Black Hole
When a massive star begins to cool and expand it is known as a:
Black Dwarf
Red Giant
When the core of a Red Supergiant collapses, a bright event occurs, known as:
white dwarf
supernova
big bang
black hole
After a supernova, the core can collapse into a neutron star, or if massive enough it can become a:
When a Red Giant's outer atmosphere drifts away it is now known as:
planetary cloud
White dwarf cloud
planetary nebula
expanding nebula
One possible outcome that is left after a supernova is a super dense core called a:
A black hole is black because:
there is nothing in it
it is too small to see
it is inherently evil
even light cannot escape its gravity
Our sun is currently in what star stage?
Protostar
Nebula
Main Sequence
Main sequence stars are made primarily of which elements?
Hydrogen only
Helium and Carbon
Carbon and Iron
Hydrogen and Helium
A star that has begun nuclear fusion will last for:
millions or even billions of years
a few thousand years
as long as the universe survives
forever
When a nebula condenses and takes on a shape it is called:
a red supergiant
a black hole
a white dwarf
a protostar
The stable and longest lasting period of a star’s life cycle is called:
The birth of a star
Neutron star
What fuel do main sequence stars use?
Oxygen
Hydrogen
Carbon
Iron
Neutron stars that emit radiowaves are called:
Pulsars
Galaxys
Planets
20 questions 
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