LIFE CYCLE OF STAR QUIZ 2

Stars are formed from big clouds of gas and dust is known as a ______. 

• clouds grande
• BCOG's
• neutron clouds
• nebulae

The only force acting on the nebulae 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

Our sun is currently in what star stage?

• Protostar

• Nebula

• Main Sequence

• Red Giant

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 of years

• a few thousand years

• as long as the universe survives

• forever

What is an exploding star?

• black hole
• Milky Way
• supernova
• solar system

After a supernova, if the core is massive enough it can collapse into a...

• Black Hole
• White Dwarf
• Brown Dwarf
• Black Dwarf

Large mass stars exist for a longer time than small mass stars.

• True

• False

More massive stars continue to fuse elements in their cores all the way up to...

• helium (He)
• iron (Fe)
• carbon (C)
• plutonium (Pu)