Ch 25 Test

What color will a star be with a surface temperature of 5500–7000 K?

• blue
• red
• yellow
• white

According to the big bang theory, the entire universe began as a

• supernova explosion
• cool, dark expansive nebula
• dense, hot supermassive ball
• scattered band of space dust.

Tags

NGSS.HS-ESS1-2

What can astronomers learn by studying a star's color?

• its chemical composition
• how far/close it is to Earth
• its temperature
• its size

Tags

NGSS.HS-PS4-3

Before a star is born, the matter that will become the star exists as a

• bright explosive supernova
• red giant
• black hole
• cool, dark nebula

In the diagram given, what happens as we move to the left?

• Stars get larger

• stars get hotter

• stars get colder

• ....

Into which of the following life cycle stages will the sun enter next?

• white dwarf stage
• red giant stage
• planetary nebula stage
• black dwarf stage

The H-R diagram shows the relationship between what two factors?

• apparent magnitude
• absolute magnitude
• parallax angles
• temperature

Which of the following will be the final stage in the sun’s life cycle?

• nova stage
• red giant stage
• planetary nebula stage
• black dwarf stage

All stars, regardless of their size, eventually

• turn into a black dwarf.
• produce a supernova explosion
• run out of fuel and collapse
• collapse into a white dwarf

Which of the following is supportive evidence of the big bang theory?

• pulsars
• cosmic microwave background radiation
• galactic clusters
• the different shapes of galaxies

Tags

NGSS.HS-ESS1-2