WorksheetsReview: Stars
Total questions: 14
Worksheet time: 7mins
Light and other forms of electromagnetic radiation are given off by stars using energy released during
nuclear fusion
conduction
convection
radioactive decay
Where would a new star most likely form?
in a nebula
in a supernova
in a black hole
in an asteroid field
The diagram represents possible stages in the life cycle of stars. What factor below usually determines whether a star will be on the main sequence?
age
mass
temperature
distance
The final stage of a star’s existence is determined by its mass. The most massive stars will end their lives as
supergiant stars
red giants
white dwarf stars
black holes
At which phase of its evolutionary life is a white dwarf star?
the late phase for a small mass star
the remains of a larger star’s explosion
in the main sequence phase
early phases, soon after a star’s formation
A probable fate of our sun is
to expand as a red giant, undergo a nova outburst and end as a white dwarf
to shrink to a white dwarf then eventually expand to a red giant
become hotter and expand to a blue supergiant
to become a black hole
The explosion of a massive star near the end of its life is known as
nova
supernova
pulsar
nebula
According to the diagram, the life-cycle path followed by a star is determined by the star’s initial
mass and size
luminosity and color
temperature and origin
luminosity and structure
Stars like Earth’s Sun most likely formed directly from a
nebula
supernova
red giant
black dwarf
According to the diagram, a star like Earth’s Sun will eventually
explode in a supernova
become a black hole
change into a white dwarf
become a neutron star
A star is a mid-sized main sequence star. What is the next stage in the life cycle of this star?
red giant
black hole
white dwarf
neutron star
Compared with our Sun, the star Adebaran is
larger, cooler, and more luminous
smaller, cooler, and more luminous
smaller, hotter, and less luminous
larger, hotter, and less luminous
The graph above represents the brightness and
temperature of stars visible from Earth. Which location on the graph best represents a star with the highest brightness and temperature?
A
B
C
D
Which star has a surface temperature most similar to
the surface temperature of Alpha Centauri?
Sirius
Polaris
Procyon B
Betelgeuse
