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WorksheetsAstronomy Half Way Test Review
Total questions: 57
Worksheet time: 32mins
Earth, the Sun, and billions of stars are contained within
a single constellation
the milky way galaxy
the solar system
a giant cloud of gs
The theory that the universe is expanding is supported by data from the
nuclear decay of radioactive materials
nuclear fusion of radioactive materials
blue shift of light from distant galaxies
red shift of light from distant galaxies
A red shift in the light from very distant galaxies suggests that the universe is
Fixed and Stationary
Moving randomly
contracting
expanding
The current temperature indicated by the cosmic microwave background radiation is
higher than the temperature at which water boils
between the temperature at which water boils and room temperature
between room temperature and the temperature at which water freezes
lower than the temperature at which water freezes
In which sequence are the items listed from least total mass to greatest total mass?
solar system, Milky Way, universe
Milky Way, solar system, universe
universe, Milky Way, solar system
Milky Way, universe, solar system
Which statement best describes the age of our solar system and the universe?
The universe is at least twice as old as our solar system.
Our solar system is at least twice as old as the universe.
Our solar system and the universe are estimated to be 5 billion years old.
Our solar system and the universe are estimated to be 10 billion years old.
A lightyear is
the distance traveled by light in one year
the distance the Earth moves in one year
the time it takes light to go once around the Earth's orbit
the time it takes light to travel one year
Billions of stars in the same region of the universe are called
Solar systems
asteriod belts
constellations
galaxies
A blue shift of the light from a star indicates that the star
will soon become a main sequence star
will soon become a giant star
is moving closer to Earth
is moving away from Earth
The diagram shows the spectral lines for an element.
Which diagram best represents the spectral lines of this element when its light is observed coming from a star that is moving away from Earth?
The more that the spectral lines of a star are shifted to the red end of the spectrum
the larger it is
the faster it is rotating
the hotter it is
the faster it is moving away from us
Light and other forms of electromagnetic radiation are given off by stars using energy released during
nuclear fusion
conduction
convection
radioactive decay
What celestial phenomenum most affects radio communication and other electrical atmospheric changes for us on earth?
solar eclipses
solar flares
meteorites entering the atmosphere
lunar eclipses
As the sun ages it will be composed of
more hydrogen and less helium
more helium and less hydrogen
more oxygen and less carbon
less oxygen and more carbon
The fuel of the sun is
hydrogen
helium
oil
oxygen
Approximately how many times larger is the diameter of the sun compared to the earth?
10 times
100 times
1000 times
10000 times
Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?
Polaris
Betelgeuse
Procyon B
Sirius
Which sequence of stars is listed in order of increasing luminosity?
Spica, Rigel, Deneb, Betelgeuse
Polaris, Deneb, 40 Eridani B, Proxima Centauri
Barnards Star, Alpha Centauri, Rigel, Spica
Procyon B, Sun, Sirius, Betelgeuse
The star Algol is estimated to have approximately the same luminosity as the star Aldebaran approximately the same temperature as the Rigel. Algol is best classified as a
main sequence
red giant
white dwarf
red dwarf
In the H-R diagram, 90 percent of all stars fall
in the Red Dwarf region.
in the Supergiant region.
among the White Dwarfs.
on the Main Sequence.
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
gravitational attraction
expansion of matter
cosmic background radiation
Which star has the greatest probability of producing a supernova explosion?
Barnard's Star
Betelgeuse
Procyon B
Sun
A diagram with a geocentric model would have which object in the middle?
Earth
Sun
Moon
Polaris
The modern heliocentric model of planetary motion states that the planets travel around
The Sun is slightly elliptical orbits
the Sun in circular orbits
Earth in slightly elliptical orbits
Earth in circular orbits
Which motion causes some constellations to be visible in New York State only during winter nights and other constellations to be visible only during summer nights?
Stars in constellations revolve around Earth.
Stars in constellations revolve around the Sun.
Earth revolves around the Sun.
Earth rotates on its axis.
A diagram of our current solar system with orbits that are not circular would be:
geocentric, with elliptical orbits
geocentric, with circular orbits
heliocentric, with elliptical orbits
heliocentric, with circular orbits
Which inference can be made about the comet's orbit, when it is compared to Earth's orbit?
Earth's orbit and the comet's orbit have the same distance between foci.
Earth's orbit has a greater distance between foci than the comet's orbit.
The comet's orbit has one focus, while Earth's orbit has two foci.
The comet's orbit has a greater distance between foci than Earth's orbit.
Which planet’s orbit around the Sun is most nearly circular?
Mercury
Neptune
Pluto
Venus
Which object is located at one foci of the elliptical orbit of Mars?
The Sun
Betelgeuse
Earth
Jupiter
Which sentence would create the largest gravity attraction?
2 larger planets, closer together
2 smaller planets, further apart
2 larger planets, further apart
2 smaller planets, closer together
One factor responsible for the strength of gravitational attraction between a planet and the Sun is the
degree of tilt of the planet's axis
distance between the planet and the Sun
planet's period of rotation
amount of insolation given off by the Sun
Which two characteristics do all Jovian planets have in common?
small diameters and low densities
small diameters and high densities
large diameters and low densities
large diameters and high densities
The terrestrial planets differ from the Jovian planets because the terrestrial planets are
less dense and larger
less dense and smaller
more dense and larger
more dense and smaller
Between which two planets are most asteroids located?
Earth and Mars
Mars and Jupiter
Jupiter and Saturn
Saturn and Uranus
The atmosphere of Venus is composed primarily of
hydrogen and helium
Carbon Dioxide
methane
ammonia
The gas giant planets are composed primarily of
hydrogen and helium
carbon dioxide
iron
rocky materials
The velocity of a comet in its orbit around the Sun compared to the velocity of Earth around the Sun is
always less
always greater
always the same
sometimes less and sometimes greater
This apparent path of the Sun through the sky is caused by
Earth's revolution around the Sun
Earth's rotation on its axis
the Sun's revolution around Earth
the Sun's rotation on its axis
Which statement best explains why some constellations are not seen during all four seasons?
Earth revolves around the Sun.
Constellations revolve around the Sun.
The Moon revolves around Earth.
The Sun revolves around the center of the Milky Way.
The further away the planet, the
shorter the period of revolution, and the lower the velocity
longer the period of revolution, and the lower the velocity
shorter the period of revolution, and the higher the velocity
