WorksheetsAstronomy Review
Total questions: 35
Worksheet time: 23mins
Spectrum of light seen as stars are moving farther away from the observer
(a)
Occurs when the Moon passes through Earth’s shadow
(a)
Spring day characterized by day and night of equal lengths
(a)
Occurs when the Moon passes directly between the Sun and Earth
(a)
Spectrum of light seen as stars are moving closer to the observer
(a)
Statement that planetary orbits are elliptical, not circular
(a)
Statement that planetary orbits speed up when closer to the gravitational pull of the Sun
(a)
Cloud of dust and gas that formed the Sun and planets
(a)
A natural phenomenon by which physical bodies attract with a force proportional to their mass
(a)
Statement that planetary orbits closer to the Sun move faster than those farther away from the Sun
(a)
A(n) (a) is a graphical plot showing the relationship between a star’s luminosity and its surface temperature.
The degree by which the shape of an orbit differs from a circle is its (a) .
A neutron star is about the same size as ____________________.
a school bus
a U.S. city
the moon
Earth
The most rapidly “blinking” pulsars are those that _________________.
spin fastest
are oldest
are most massive
are hottest
Gamma-ray bursts are observed to occur_________________.
mainly near the sun
throughout the milky way
approximately uniformly over the entire sky
near pulsars
The best place to search for black holes is in a region of space that _______________.
is dark and empty
has recently lost some stars
has strong X-ray emission
is cooler than its surroundings
In the Milky Way Galaxy, our Sun is located ________________.
near the Galactic center
about halfway out from the center
at the outer edge
in the halo
The first stars that formed in the Milky Way now _________________________.
have chaotic orbits
orbit the Galactic plane
orbit near the Galactic center
orbit in the same direction as the Milky Way spins
Stars in the outermost regions of the Milky Way Galaxy ________________________.
are youngest
orbit faster than astronomers would expect
are most likely to explode as supernovae
are more luminous than other stars
Most of the mass of the Milky Way exists in the form of ____________________.
stars
gas
dust
dark matter
A white dwarf is supported by the pressure of tightly packed _________________.
electrons
protons
neutrons
photons
A star like the Sun will end up as a ______________.
blue giant
white dwarf
binary star
red dwarf
A white dwarf can dramatically increase in brightness only if it _______________.
has another star nearby
can avoid nuclear fusion in its core
is spinning very rapidly
is descended from a very massive star
Most of the carbon in our bodies originated in _________________.
the core of the Sun
the core of a red giant star
a supernova
a nearby galaxy
The Sun will get brighter as it begins to run out of fuel in its core.
True
False
A nova is a sudden outburst of light coming from an old main-sequence star.
True
False
Cepheid variables can be used to determine the distance to the nearest galaxies.
True
False
The Galactic halo contains about as much gas and dust as the Galactic disk.
True
False
The Galactic disk contains only old stars.
True
False
Stars and gas in the Galactic disk move in roughly circular orbits around the Galactic center.
True
False
Newly formed neutron stars have extremely strong magnetic fields.
True
False
All millisecond pulsars are now, or once were, members of binary star systems.
True
False
All things, except light, are attracted by gravity.
True
False
According to general relativity, space is warped, or curved, by matter.
True
False
Thousands of black holes have now been identified in our Galaxy.
True
False
