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Test your basic knowledge |
Cosmology
Start Test
Study First
Subject
:
science
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The point in its orbit where a planet is farthest from the sun
Blackbody
CNO Cycle
aphelion
Cosmic Microwave Background (CMB)
2. The process similar to conduction by which energy moves from the solar core to the convective layer
gravity
Electromagnetic Radiation: Visible Light
Radiative Diffusion
Trojan asteroids
3. How did Earth come to have an oxygen rich atmosphere?
Kirchhoff's Law
Differential Rotation
Biologicla life created the recycling of nitrogen - co2 - and the production of oxygen. Oxygen is heavier so the atmosphere held onto it easier than hydrogen and helium.
Gamma-ray Burst
4. The apparent path of the Sun through the stars on the celestial sphere.
Limb darkening
Ecliptic
partile horizon
Electromagnetic Radiation: Microwave
5. The science of measuring light energy by wavelength.
Spectroscopy
Synchrotron Rotation
Make up of the terrestrial planets
Nucleus
6. Clouds of low density gas often found glowing faintly on either side of an AGN.
radio lobe
Thermal Equilibrium
Focal Plane
retrograde motion
7. Why does the earth have few craters while the moon has many?
Dark Nebula
quasar
meteor shower
Earth resurfaces itself due to erosion and plate tectonics - while the moon has neither.
8. Either Io -Europa - Ganymede - or Callisto
MOONS: most geologically active
quasar
Continuous Spectrum
Galilean satellite
9. The process responsible for creating the arms of flocculent spiral galaxies
most moons
Self-Propogating Star Formation
Stephen-Boltzman Law
Horizontal Branch Star
10. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.
Earth resurfaces itself due to erosion and plate tectonics - while the moon has neither.
general star population
Cosmic Microwave Background
Black Hole
11. The law that predicts the possible types of spectra.
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12. Small moons that maintain the shape of rings around Saturn and Uranus
Chandrasekhar Limit
least dense
meteoriod
Shepherd satellite
13. Jupiter
hottest surface
Light Pollution
most moons
planetesimal
14. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.
Hyashi track
Chromosphere
Photon
greehouse effects
15. A nearby galaxy with a quasar-like nucleus. closer but less bright than quasars-weaker
Planetary Nebula
Seyfert galaxy
Radiative Diffusion
Big Bang
16. The name for the only seriously considered theory of the universe.
planetesimal
Big Bang
Resolving Power
Supercluster
17. The distance light travels in one year (=9.46x10^12km).
MOONS: largest size
Roundest orbit
density waves
Light-Year
18. Matter that reveals itself only through its gravitational attraction.
Gravitational Lens
dark matter
Extrasolar Planet
Geocentric
19. A very dense - highly populated cluster of galaxies
Spectroscopic parallax
tectonics of Earth
Electromagnetic Radiation: Visible Light
Rich Cluster
20. The act of removing an electron from an atom.
Ionization
Superior planets
Molecular Clouds
meteorite
21. Mercury - Venus - Earth - Mars
Resolving Power
Bulge
Supernova (You can be my supernova girl)
Terrestrial Planets
22. A technique using computer-controlled mirrors to sharpen images distorted by the atmosphere
Void
Seeing
Active Optics
general star population
23. Ganymede and Titan
MOONS: larger than mercury
tectonics of Earth
widmanstatten pattern
Cosmic Microwave Background (CMB)
24. As open clusters age - they push gas away but dust remains this can reflect light giving the cluster a blue-ish color. also called reflection nebula
Globular Cluster
critical density
reflection star clusters
300000 KM/sec
25. A small and dim but hot star.
Maria
semimajor axis
Thickest atmosphere
White Dwarf
26. The act of removing an electron from an atom.
Globular Cluster
Self-Propogating Star Formation
Apparent Magnitude
Ionization
27. Light-flaky crust - convective currents cause it to wrinkle and bunch (1/5 of surface). uniform cratering suggests lack of weathering and tectonics. volcanoes are flat due to atmospheric pressure.
Parallax
CMB
Red Giant Branch Star
tectonics of Venus
28. A perfect absorber and radiator of electromagnetic radiation.
Blackbody
Planetary Nebula
Flat - Remain Parallel - Exactly 1
Observations of distant type Ia supernovae indicate that the expansion of the universe is speeding up with time - not slowing down! So there must be a force causing this.
29. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.
Black Hole
neutrino
Resolving Power
Ganymede (Jupiter)
30. As open clusters age - they push gas away but dust remains this can reflect light giving the cluster a blue-ish color. also called reflection nebula
aurora
Kirkwood gaps
reflection star clusters
AGN
31. An empirical scheme for predictin ghe orbital distances of planets
Horizontal Branch Star
Titus-Bode Law
The Local Group
density waves
32. A large - irregularly shaped rocky object orbiting the sun mostly between mars and jupiter. Left-over planetesimals
Big Bang
asteroid
Dark matter is located at center of clusters - pulling the cluster members into faster orbits--dark matter gravity keeps objects in galxies bound.
Coldest surface
33. A spinning neutron star
Wein's Law
Pulsar
comet
Heliocentric
34. The organized effort to find life elsewhere in the universe. (Search for Extra-Terrestrial Intelligence)
mass
SETI
Parsec
E=mc2
35. A planet that is closer to the sun than the earth
inferior planets
meteoriod
supermassive black hole
Radiative Diffusion
36. Rich= dense crowded cores of galaxies - poor= few members and a looser organization of galaxies
Open Cluster
Rich vs poor clusters
Sc spiral galaxy
Synodic Day
37. The point directly overhead.
Reflector
Electromagnetic Radiation: X-Ray
Biologicla life created the recycling of nitrogen - co2 - and the production of oxygen. Oxygen is heavier so the atmosphere held onto it easier than hydrogen and helium.
Zenith
38. When massive objects bend space and time enough to create multiple images of an object located behind them
blazar
Gravitational Lens
Sa spiral galaxy
shape and color of ELLIPTICAL galaxies
39. The crust of a meteorite caused by its entry into Earth's atmosphere
MOONS: largest size
epicycle
asteroid
fusion crust
40. The light produced when particles from the sun collide with atmospheric molecules
Thermonuclear Fusion
Flocculent spirals
aurora
Electromagnetic Radiation: Microwave
41. The entity responsible for spiral arms in grand-design spiral galaxies
self-propagating star formation
greehouse effects
synchrotron radiation
Density Wave
42. A star that is burning hydrogen to helium in a shell surrounding it's core
density waves
Callisto (Jupiter)
Red Giant Branch Star
Color Index
43. A small spherical dark nebula
Bok Globule
MOONS: largest size
highlands
coma
44. Material that shoots rapidly out into space. Flares cause Auroras
Objective Lens
Flare
synchronous rotation
Hyashi track
45. The most mass a white dwarf can have before collapsing to a neutron star
Metals
Chandrasekhar Limit
evidence of water on mars
radiant
46. A term referring to the orbital character of stars near the Sun
Kuiper belt
Differential Rotation
Instability strip
great dark spots
47. Sa - Sb galaxies where two magnificent arms wind their way from nucleus out in a symmetrical manner.
self-propagating star formation
Grand design spirals
Milky way Galaxy
nucleus
48. The law that predicts the possible types of spectra.
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49. A particle of light.
Photon
Shepherd satellite
fusion crust
nucleus
50. A push or a pull
force
Flare
Supernova (You can be my supernova girl)
Roundest orbit