Final Review - Nuclear Fusion/Star Life Cycle

A star is held together by its own ________.

• gravity

• nuclear fusion

• gas pressure

• heavy elements

What color are the hottest stars?

• red

• yellow

• blue

• white

What color are the coolest stars?

• red

• yellow

• blue

• white

What does a star's life expectancy depend on?

• mass of the star

• elements in the star

• color of the star

Where are stars born?

• supernova

• planetary nebula

• stellar nebula

• black hole

Stars are powered by ______________ in their cores.

• gravity

• hydrostatic equilibrium

• nuclear fusion

• gas pressure

What is spaghettification?

• when you cook spaghetti on the stove

• when something is incinerated by a star

• the boundary where no light can escape a black hole

• the process that stretches out matter when it enters a black hole

What will our sun become 4 to 6 billion years from now?

• planetary nebula

• white dwarf

• red giant

• black hole

A protostar is the...

• end of the star's cycle
• beginning of the star's cycle

The combining of two or more atoms in a stars core into a new heavier atom.

• Fission
• Fusion
• Nuclear Reactions
• Nucleosynthesis