WorksheetsUniverse and Stars
Total questions: 13
Worksheet time: 13mins
Compared to our planet, the universe is
younger and smaller
younger and larger
older and smaller
older and larger
Evidence that the universe is expanding is best supported by the observation that the wavelengths of light from distant galaxies are shifted toward the
red end of the spectrum because they are shortened
red end of the spectrum because they are lengthened
blue end of the spectrum because they are shortened
blue end of the spectrum because they are lengthened
The diagram represents the absorption spectrum lines from the light emitted from a mixture of two gas elements in a laboratory on Earth. If the same two elements were detected in a distant star that was moving away from Earth, how would the spectral lines appear?
The entire set of absorption lines would shift toward the red end of the spectrum.
The entire set of absorption lines would shift ward the blue end of the spectrum.
The spectral lines of the shorter wavelengths would move closer together.
The spectral lines of the longer wavelengths would move closer together.
Great amounts of energy are released in the core of a star as lighter elements combine and form heavier elements during the process of
compaction
condensation
fission
fusion
Which of the following sequences best describes the formation and evolution of stars with masses similar to the Sun?
Protostar, white dwarf, main sequence, red giant
Main sequence, protostar, white dwarf, red giant
Red giant, main sequence, black dwarf
Protostar, main sequence, red giant, white dwarf
Which property primarily determines whether a giant star or a supergiant star will form?
mass
color
shape
composition
What causes clouds of dust and gas to form a protostar?
magnetism
gravity
expansion of matter
cosmic background radiation
For other stars in our galaxy that go through a similar life cycle to our Sun, which star is currently in the late stage of its life cycle?
Alpha Centauri
Procyon B
Barnard's Star
Polaris
The vast majority of stars in the Characteristics of Stars graph are classified as
white dwarfs
main sequence
giants
supergiants
Which star has a lower temperature than our sun, but is brighter?
Alderbaran
Barnard's Star
Sirius
Rigel
What is the color of star with the lowest temperatures?
blue
orange
red
yellow
According to the Characteristics of Stars graph, what is the general relationship between temperature and luminosity?
The higher the surface temperature, the less luminous a star.
The higher the surface temperature, the brighter the star.
The lower the surface temperature, the brighter the star.
There is no correlation that can be made between temperature and brightness on the Characteristics of Stars graph.
Please explain why you did not take this quiz during the assigned window of time. If your reason is "I forgot", please explain how you will change your habits in order to better remember your assignments. Your honest answer to this question may impact your grade on this assignment.
