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WorksheetsESS Space - The Universe A
Total questions: 33
Worksheet time: 17mins
egg shaped or spherical
elliptical galaxies
all galaxies
irregular galaxies
spiral galaxies
composed of stars
elliptical galaxies
all galaxies
irregular galaxies
spiral galaxies
lack a well-defined structure
elliptical galaxies
all galaxies
irregular galaxies
spiral galaxies
huge central bulge, surrounded by arms
elliptical galaxies
all galaxies
irregular galaxies
spiral galaxies
Doppler effect
an observed change in the frequency of a wave when the source or observer is moving
theory that all matter and energy in the universe exploded ten to twenty billion years ago and began expanding in all directions
galaxy moving away from Earth
apparent shift toward shorter wavelengths of light when a luminous object moves toward the viewer
theory that matter distorts space
big bang theory
an observed change in the frequency of a wave when the source or observer is moving
theory that all matter and energy in the universe exploded ten to twenty billion years ago and began expanding in all directions
galaxy moving away from Earth
apparent shift toward shorter wavelengths of light when a luminous object moves toward the viewer
theory that matter distorts space
red shift galaxy
an observed change in the frequency of a wave when the source or observer is moving
theory that all matter and energy in the universe exploded ten to twenty billion years ago and began expanding in all directions
galaxy moving away from Earth
apparent shift toward shorter wavelengths of light when a luminous object moves toward the viewer
theory that matter distorts space
blue shift
an observed change in the frequency of a wave when the source or observer is moving
theory that all matter and energy in the universe exploded ten to twenty billion years ago and began expanding in all directions
galaxy moving away from Earth
apparent shift toward shorter wavelengths of light when a luminous object moves toward the viewer
theory that matter distorts space
general theory relativity
an observed change in the frequency of a wave when the source or observer is moving
theory that all matter and energy in the universe exploded ten to twenty billion years ago and began expanding in all directions
galaxy moving away from Earth
apparent shift toward shorter wavelengths of light when a luminous object moves toward the viewer
theory that matter distorts space
universe
sum of all space, matter, and energy
matter not visible through current methods, but observable through gravitational interactions between galaxies
apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer
steady but faint microwaves from all over the sky
the possible contraction and collapse of the currently expanding universe
dark matter
sum of all space, matter, and energy
matter not visible through current methods, but observable through gravitational interactions between galaxies
apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer
steady but faint microwaves from all over the sky
the possible contraction and collapse of the currently expanding universe
red shift
sum of all space, matter, and energy
matter not visible through current methods, but observable through gravitational interactions between galaxies
apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer
steady but faint microwaves from all over the sky
the possible contraction and collapse of the currently expanding universe
cosmic background radiation
sum of all space, matter, and energy
matter not visible through current methods, but observable through gravitational interactions between galaxies
apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer
steady but faint microwaves from all over the sky
the possible contraction and collapse of the currently expanding universe
big crunch
sum of all space, matter, and energy
matter not visible through current methods, but observable through gravitational interactions between galaxies
apparent shift toward longer wavelengths of light when a luminous object moves away from the viewer
steady but faint microwaves from all over the sky
the possible contraction and collapse of the currently expanding universe
Astronomers estimate that the universe contains
100 Galaxies
100 Million Galaxies
100 Billion Galaxies
100 Trillion Galaxies
The varying theories of the universe’s eventual fate all depend on the universe’s current
rate of expansion
mass
volume
energy
Energy produced in a star’s core moves through the star by
convection and fusion.
radiation and fusion.
convection and radiation
none of the answers
The brightness of a star depends on its
temperature
size
distance from Earth
All of the answers
The composition of a star can be identified by
its apparent brightness
the size of the star
the lines in its spectrum
the intensity of its radiation
The sun will eventually end up as a
white dwarf
brown dwarf.
brown dwarf.
black hole
Stars produce energy by fusing hydrogen into
Oxygen.
Iron
Carbon
Helium
The lifespan of the sun before reaching the red giant stage is about
250 million years.
10 billion years.
40 billion years
150 billion years
The surface temperature of the sun is related to its peak wavelength, which is near the color
yellow
violet
red
blue
A _____ is so massive and compressed that not even light can escape its gravity.
neutron star
black hole
protostar
supernova
Clusters of galaxies can form larger groups called
supernovas.
superclusters.
constellations.
supergiants
A galaxy is a collection of _____ bound together by gravity.
stars
superclusters
universes
None of the answers
Quasars were named for their
absorption of radiation.
generation of radiation
resemblance to galaxies
resemblance to stars.
Interstellar matter is composed of _____ found between stars in a galaxy
planets and moons
light and radio waves
dust and gas
None of the answers
Astronomers group galaxies into three types, according to their
shapes.
ages.
colors
sizes.
Quasars are among the strongest sources of _____ in the universe.
planets
clusters
radio waves
sound waves
Our solar system is located in which of these galaxies?
Andromeda
Milky Way
Messier 87
Fornax A
A star generates energy by
fission
photosynthesis
fusion
none of answers
The closest star to Earth is
the sun
Sirius
Canus Major
Kelvin
