Nebulae
The birthplace of all stars is called:
a. Galaxy
b. Nebula
c. Red giant
d. Protostar
b. Nebula
The process that powers stars by converting hydrogen into helium:
a. Radiation
b. Nuclear fusion
c. Evaporation
d. Combustion
b. Nuclear fusion
Cool, small stars that burn fuel slowly for billions of years are called?
a. Red dwarfs
b. Neutron stars
c. Supergiants
d. Protostars
a. Red dwarfs
A powerful explosion marking the end of a massive star’s life:
a. White dwarf
b. Supernova
c. Black dwarf
d. Protostar
b. Supernova
The building blocks of planets and life formed inside stars:
a. Elements
b. Clouds
c. Isotopes
d. Galaxies
a. Elements
The early stage formed when gravity compresses gas and dust:
a. Supernova
b. White dwarf
c. Protostar
d. Neutron star
c. Protostar
Our nearest main sequence star is:
The Sun
The factor that determines how long a star lives and how it dies:
a. Shape
b. Color
c. Distance
d. Mass
d. Mass
A collapsed massive star with gravity so strong that light cannot escape:
a. Neutron star
b. Black hole
c. Red giant
d. Supernova
b. Black hole
The type of star that burns fuel the slowest:
a. Giant star
b. Red dwarf
c. Blue star
d. Neutron star
b. Red dwarf
A glowing shell formed when a dying low-mass star sheds its outer layers:
Planetary nebula
The stage where a star spends most of its life:
a. White dwarf
b. Red giant
c. Main sequence
d. Supernova
c. Main sequence
when we look at the star color in the night, what can color tell us about energy?
The color tells us how hot the star is and the amount of energy in it.
A super-dense remnant made mostly of neutrons:
a. Red dwarf
b. White dwarf
c. Neutron star
d. Black dwarf
c. Neutron star
What causes a huge star to burn fuel more quickly than a smaller star?
huge stars have hotter cores, stronger gravity and high pressure, which makes nuclear fusion faster
What is the force responsible for pulling gas and dust together to form stars?
Gravity
Blue stars are hotter than red stars because they have:
a. More mass
b. Longer wavelengths
c. Slower fusion
d. Shorter wavelengths
d. Shorter wavelengths
Which among the following is an example of red dwarf star?
a. Proxima Centauri
b. Betelgeuse
c. Antares
d. Sirius
a. Proxima Centauri
The final, cooled form of a white dwarf:
a. Black hole
b. Black dwarf
c. Red giant
d. Protostar
b. Black dwarf
The stage where helium starts fusing into carbon and oxygen:
a. Main sequence
b. Red giant
c. Nebula
d. Supernova
b. Red giant