Download For each statement or question, select the word or expression that

For each statement or question, select the word or expression that best
completes the statement or answers the question. (4 points each)
____ 1. The part of the spectrum that can be separated into rainbow-like colors
is
A. X-rays
B. ultraviolet rays
C. visible light rays
D. infrared rays
____ 2. Which of the following has the shortest wavelength?
A. X-rays
B. ultraviolet rays
C. visible light rays
D. infrared rays
____ 3. A spectroscope is used to
A. listen to radio waves
B. view gamma ray images
C. create microwaves
D. split light into a spectrum
____ 4. Which of the following does not emit a continuous spectrum?
A. glowing solid
B. glowing liquid
C. glowing thin gas
D. hot, compressed gas
____ 5. What kind of spectrum is used to determine the composition of a stars
outer layer?
A. bright line
B. continuous
C. absorption
D. emission
____ 6. If a star's spectral lines are shifted towards the red end of the
spectrum, then the star is
A. moving towards Earth
B. moving away from Earth
C. moving at the same rate as Earth
D. none of the above
____ 7. To measure the redshift or blueshift of a star, astronomers use the
star's spectrum and
A. emission lines from reference elements on Earth
B. emission lines from another star like Polaris
C. the speed of the star as measured from photographs
D. the brightness of the star
____ 8. Some constellations can only be seen during certain seasons because
A. the moon revolves around Earth
B. Earth's axis is tilted
C. Earth revolves around the sun
D. the stars move around the sun
____ 9. The constellation that contains the "pointer stars" used to locate
Polaris is
A. Canis Major
B. Cassiopeia
C. Orion
D. Ursa Major
____ 10. An example of a winter constellation is
A. Lyra
B. Orion
C. Cygnus
D. Cassiopeia
____ 11. A light-year measures
A. time
B. distance
C. speed
D. energy
____ 12. The mass of a star can be measured by
A. direct observation
B. performing calculations based on other observations
C. comparing its size to the sun's
D. comparing its brightness to the sun's
____ 13. Two stars have the same temperature but are different sizes. Which of
the following statements is true?
A. The larger star is brighter.
B. The smaller star is brighter.
C. The stars have the same brightness.
D. Their brightness cannot be compare without more data.
____ 14. Most stars are composed mainly of
A. iron and titanium
B. titanium and hydrogen
C. hydrogen and helium
D. helium and iron
____ 15. Red giants that lose their atmospheres leave faint, Earth-sized stars
called
A. Cepheid variables
B. blue superiants
C. white dwarfs
D. proton stars
____ 16. Cepheid variable stars have been used to determine the
A. ages of eclipsing binary stars
B. distances to galaxies
C. speed of visible light
D. luminosity of red giant stars
____ 17. In the next stage of its life cycle, the sun is expected to become a
A. red giant
B. red dwarf
C. supernova
D. black hole
____ 18. Which objects are listed in order of scale from smallest to largest?
A. sun, red giant, Earth, galaxy
B. red giant, sun, galaxy, Earth
C. Earth, sun, red giant, galaxy
D. galaxy, Earth, sun, red giant
____ 19. The Milky Way is an example of a(n)
A. spiral galaxy
B. elliptical galaxy
C. summer constellation
D. winter constellation
____ 20. Active galaxies are thought to be powered by
A. friction from condensing gases
B. dark matter
C. a central, supermassive black hole
D. a giant pulsar
____ 21. The Milky Way, the Andromeda Galaxy, and the Magellanic Clouds are all
members of
A. our solar system
B. our galaxy
C. the Local Group
D. the Virgo Cluster
____ 22. Which of the following is not evidence for the big bang theory?
A. Hubble's discovery that the universe is expanding
B. Cannon's development of a stellar classification system
C. Penzias and Wilson's discovery of the cosmic background radiation
D. COBE's measurements of the cosmic background radiation