The Stars

Which of the following terms should be listed first chronologically? 

• Main-Sequence
• Protostar
• White Dwarf
• Red Giant

Which best describes a main-sequence star?

• Unstable
• Relatively Very Hot
• Balanced forces
• Relatively very small

Our Sun is a main-sequence star that will explode as a supernova in 6 billion years.

• True
• False

Medium mass stars will form this as their hydrogen fuel runs out.

• supernova
• red giant
• neutron star
• white dwarf

Medium mass stars eventually release gas and stop all fusion to become ______.

• Black holes
• Neutron stars
• White dwarfs
• super nova

The most massive of stars eventually collapse into what final star remnant?

• Neutron stars
• Black holes
• White dwarfs
• Protostars

Massive stars (between low-mass and very massive) eventually collapse into what final star remnant?

• Black holes
• Neutron stars
• White dwarfs
• Planetary nebulae

Massive stars fuse hydrogen into heavier elements during their life up to Iron (Fe) and then explode into whats called a ________.

• Nebula
• Supernova
• white dwarf
• main sequence star

H-R diagrams measure both a star's ______ and _______. 

• mass and color
• luminosity and surface temperature
• brightness and composition
• location and type

The most stable part of a stars life when hydrogen is fusing into helium.  

• main sequence
• protostar
• white dwarf
• super nova