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CRT Review 3 rd Quarter. An astronomical unit is the average distance _____. Between Mercury and the sun Between Mercury and Pluto Light travel in 1 minute Between Earth and the sun. An astronomical unit is the average distance _____. Between Mercury and the sun
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An astronomical unit is the average distance _____. • Between Mercury and the sun • Between Mercury and Pluto • Light travel in 1 minute • Between Earth and the sun
An astronomical unit is the average distance _____. • Between Mercury and the sun • Between Mercury and Pluto • Light travel in 1 minute • Between Earth and the sun
Distances between stars are usually measured in _____. • Light-minutes • Light-hours • Light-days • Light-years
Distances between stars are usually measured in _____. • Light-minutes • Light-hours • Light-days • Light-years
A comet’s tail always extends _____. • Towards the sun • Away from the sun • Towards the planet that it’s passing • Away from the planet it is passing
A comet’s tail always extends _____. • Towards the sun • Away from the sun • Towards the planet that it’s passing • Away from the planet it is passing
The majority of stars in our galaxy are _____. • Blue • White dwarfs • Main-sequence • Red giants
The majority of stars in our galaxy are _____. • Blue • White dwarfs • Main-sequence • Red giants
The H-R diagram has become a tool for studying the nature of stars because it shows how stars _____. • Are classified by temperature • Are classified by brightness • Change over time • All of the above
The H-R diagram has become a tool for studying the nature of stars because it shows how stars _____. • Are classified by temperature • Are classified by brightness • Change over time • All of the above
What type of galaxy are each?A – IrregularB – EllipticalC – Spiral
In space, _____ are giant clouds of gas and Dust where stars are born. • Nebulas • Globular clusters • Open clusters • Quasars
In space, _____ are giant clouds of gas and Dust where stars are born. • Nebulas • Globular clusters • Open clusters • Quasars
Among the most distant objects are _____, which are among the most powerful energy sources in the universe. • Nebulas • Globular clusters • Open clusters • Quasars
Among the most distant objects are _____, which are among the most powerful energy sources in the universe. • Nebulas • Globular clusters • Open clusters • Quasars
A star is most likely born in a _____. • Globular cluster • Nebula • Black hole • Giant cluster of old stars
A star is most likely born in a _____. • Globular cluster • Nebula • Black hole • Giant cluster of old stars
Which of the following could be formed as a result of a supernova? • A black hole • A neutron star • A pulsar • All of the above
Which of the following could be formed as a result of a supernova? • A black hole • A neutron star • A pulsar • All of the above
A _____ forms when the leftovers of a supernova are so massive that they collapse to form a dense object with gravity so strong that light cannot escape it. • Black hole • Red giant • Quasar • Pulsar
A _____ forms when the leftovers of a supernova are so massive that they collapse to form a dense object with gravity so strong that light cannot escape it. • Black hole • Red giant • Quasar • Pulsar
GEO’s are better orbits for communications because satellites in GEO _____. • Remain in position over one spot • Are farther away from Earth’s surface • Do not revolve around the Earth • Are only a few hundred kilometers high
GEO’s are better orbits for communications because satellites in GEO _____. • Remain in position over one spot • Are farther away from Earth’s surface • Do not revolve around the Earth • Are only a few hundred kilometers high
_____ was formed in response to the alarm the United States felt over possible Soviet superiority in space. • NASA • Landsat • Geosynchronous orbit • The International Space Station
_____ was formed in response to the alarm the United States felt over possible Soviet superiority in space. • NASA • Landsat • Geosynchronous orbit • The International Space Station
Which of the following gave us our first close encounter with other planets and their moons? • Artificial satellites • Space probes • Space shuttle • Space station
Which of the following gave us our first close encounter with other planets and their moons? • Artificial satellites • Space probes • Space shuttle • Space station
As Earth’s moon waxes, the sunlit fraction we see from Earth becomes _____. • Larger • Smaller • Doesn’t change • Turns red
As Earth’s moon waxes, the sunlit fraction we see from Earth becomes _____. • Larger • Smaller • Doesn’t change • Turns red
When the moon is waning, the sunlit fraction is becoming _____. • Smaller • Larger • Different colors • Doesn’t change
When the moon is waning, the sunlit fraction is becoming _____. • Smaller • Larger • Different colors • Doesn’t change
The inner planets of our solar system are called _____. • Terrestrial planets • Gas giants • Dirty snowballs • Small stars
The inner planets of our solar system are called _____. • Terrestrial planets • Gas giants • Dirty snowballs • Small stars
Our sun is located in the arm of a pinwheel- shaped _____ galaxy called the Milky Way. • Elliptical • Spiral • Irregular • Globular
Our sun is located in the arm of a pinwheel- shaped _____ galaxy called the Milky Way. • Elliptical • Spiral • Irregular • Globular
A _____ is so small and massive that not even light can escape its gravitational pull. • Neutron star • Pulsar • Quasar • Black hole
A _____ is so small and massive that not even light can escape its gravitational pull. • Neutron star • Pulsar • Quasar • Black hole
A _____ is basically the death of a large star by explosion. • Nova • Supernova • Black hole • Globular cluster
A _____ is basically the death of a large star by explosion. • Nova • Supernova • Black hole • Globular cluster
A _____ is a dense star that is formed when the leftover materials in the center of a supernova are squeezed together so that the particles inside the star become neutrons. • Pulsar • Quasar • Neutron star • Black hole
A _____ is a dense star that is formed when the leftover materials in the center of a supernova are squeezed together so that the particles inside the star become neutrons. • Pulsar • Quasar • Neutron star • Black hole
A _____ is a spinning neutron star that gives off radio signals. • Neutron star • Black hole • Quasar • Pulsar
A _____ is a spinning neutron star that gives off radio signals. • Neutron star • Black hole • Quasar • Pulsar
A _____ is a reusable vehicle that lands like an airplane. • Rocket • Space shuttle • Space probe • International Space Station
A _____ is a reusable vehicle that lands like an airplane. • Rocket • Space shuttle • Space probe • International Space Station