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WorksheetsEvolution of stars
Total questions: 14
Worksheet time: 7mins
What is the large cloud of gas, ice, and dust called that forms starts?
protostar
prestar
comet
nebula
What are about 90% of all stars classified as?
main sequence
supergiants
giants
white dwarfs
What forms as the core of a giant star no longer supports fusion and the star's outer layers escape into space, leaving a hot dense core?
giant star
white dwarf
supernova
black hole
Which is an area of space that is so dense that nothing can escape its pull of gravity?
white dwarf
supernova
black hole
neutron star
Which is the outer layer of the Sun that emits light into space?
photosphere
chromosphere
convection zone
radiation zone
Which of the following statements best explains why a star is on the main sequence
The star's mass is approximately equal to the mass of the Sun
The gravitational force balances the force from nuclear fusion
The star has just becomre a supernova.
The star's temperature lies in on the main sequence range
Which type of star is formed from a supernova?
giant
supergiant
neutron star
white dwarf
The Hertzsprung-Russell diagram plots
The temperatures of stars on the horizontal axis and the masses
The magnitudes of stars on the horizontal axis and the temperatures on the vertical axis
The magnitudes of stars on the vertical axis and the temperatures on the horizontal axis
the masses of the stars on the vertical axis and the temperatures on the horizontal axis
How is energy from the core of the Sun transmitted to the photosphere?
nuclear fusion
radiation and convection
radiation
convection
The Sun is classified as which type of star?
supergiant
main sequence
white dwarf
giant
The Sun is classified as which type of star?
supergiant
main sequence
white dwarf
giant
The layer of the sun that emits light is that
photosphere
chromosphere
convection zone
prominence
What forms from a star that is over 25 times the mass of the sun?
black hole
white dwarf
red dwarf
giant star
Which of the following is a star that expands due to fusion?
black hole
supergiant
white dwarf
neutron star
