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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 fate of the universe if it is closed. The universe expanding as much as possible and then retracting
Cassegrain Focus
Focal Plane
Make up of the terrestrial planets
Big Crunch
2. Stars orvits do not define the spiral patterns - instead they are density waves that move at slower speeds (arms are defined by young O and B stars and gas clouds)
Celestial Equator
The Local Group
Interstellar Extinction
How is winding dilemma solved?
3. Venus
Trojan asteroids
Big Crunch
Roundest orbit
aphelion
4. Europa
MOONS: roundest shape
Black Hole
cosmology
epicycle
5. A measure of how an object resists accelerating when acted upon by a force. It is proportional the amount of matter in an object
Chandrasekhar Limit
mass
Ganymede (Jupiter)
Self-Propogating Star Formation
6. Dying small mass stars lose their outer layers in a relatively gentle way - creating a round or bipolar nebula about the star (round like planets)
planetary nebula
Electromagnetic Radiation: Visible Light
Colestial Pole
Liquid metallic hydrogen
7. The Greek philosopher responsible for making the stellar magnitude scale.
planetary nebula
radio galaxy
Penumbra
Hipparchus
8. A representation of the changes in color and brightness of an evolving protostar.
evidence of water on mars
Astronomical Unit
accretion disk
Hyashi track
9. The displacement of spectral lines to redder colors caused by the expansion of the universe.
Earth resurfaces itself due to erosion and plate tectonics - while the moon has neither.
cosmological red shift
Horizontal Branch Star
Jovian Planets
10. The normal eastward movement of a planet against the background of hte distant stars.
direct motion
Resolving Power
Kuiper belt
Seyfert galaxy
11. Dark - reddish - low-pressure bands in Jupiter's atmosphere
It does not have to expand into anything. It might just be that the 3 dimensions of space are getting bigger. It may also be that our 3 spatial dimensions are expanding into higher dimensions if such things exist.
belt
Kuiper belt
most moons
12. The relation that tells how light dims with distance.
contrast northern lowlands and the southern highlands of mars...
Kuiper belt
Triple Alpha rocess
Inverse Square Law
13. A galaxy emitting large amounts of energy at long wavelengths.
Neutron Star
great red spot
radio galaxy
rotation curve = dark matter?
14. Old - pock marked - icy surface - interior is not differentiated - geologically dead - NOT ACTIVE SURFACE
Nucleus
Meridian
Parsec
Callisto (Jupiter)
15. A force exerted by reflecting sunlight
radiation pressure
Corona
A family of radiant energy- includes light
Europa (Jupiters moon)
16. The instant of time after the Big Bang when space and time obtained their characteristics. (t=10^-43 sec when gravity freezes out-instant when gravity started existing as a separate force)
Planck time
Asymptotic giant Branch Star
We don't know. It might be but does not have to be.
mapping the structure of Milky Way disk
17. Either Io -Europa - Ganymede - or Callisto
Pixel
Seyfert galaxy
Nova
Galilean satellite
18. A nearby galaxy with a quasar-like nucleus. closer but less bright than quasars-weaker
Void
Seyfert galaxy
Magnification
rotation curve = dark matter?
19. A high-pressure bulge in Neptune's southern hemisphere
Rich Cluster
general star population
Open - flat - and closed.
great dark spots
20. A repeated - periodic push or pull capable of summing into a larger push or pull
resonance
least dense
Black Hole
synchronous rotation
21. Distance from sun to nucleus- 8 kiloparsecs (26000 LY) - diameter of Milky way- 150000 LY - length for sun to orbit once around milky way- 250 million years
molecular clouds
Drake equation
Spectroscopic parallax
Milky way Galaxy
22. Wave- only waves cause an interference pattern when passing through a double slit - particle- only particles deposit energy at specific locations (the way an image builds up on digital camera)
Plank's Law
Nucleus
Light: travels like a wave - detected like a particle
Winter Solstice
23. The light produced when particles from the sun collide with atmospheric molecules
aurora
Celestial Equator
conjunction
aphelion
24. The rotation of a star or planet at different speeds at its equator and poles
Seyfert galaxy
standard candle
Light Pollution
differential rotation
25. 1 mm 1μm
Electromagnetic Radiation: Infrared
Void
Filament
Stephen-Boltzman Law
26. The state of having a balance between inward and outard pressures in a gas--the inward force from gravity is balanced by the outward force from heat.
Granules
Hydrostatic Equilibrium
Shepherd satellite
Electromagnetic Radiation: Gamma Ray
27. A younger cluster of stars - found in the galaxy disk
meteor
Prominence
Supercluster
Open Cluster
28. A small and dim but hot star.
Light: travels like a wave - detected like a particle
nova
Focal Plane
White Dwarf
29. If stars have diff orbital periods - than any arms formed by stars will wind into a tight spiral pattern (billion yrs or so)
rotation curve=winding dilemma?
Hyashi track
Terrestrial Planets
We don't know. It might be but does not have to be.
30. A highly variable galaxy nucleus of which BL Lac is one. Their light is highly energetic and their spectra are featureless. (face on)
blazar
Drake equation
Enke gap
Flat - Flat
31. A term referring to the orbital character of stars near the Sun
Objective Lens
Clouds of sufuric acid (very inhospitable and brightest object in the sky) - process called greenhouse affect traps radiation making it 900 degrees at times - spins with retrograde rotation (sun rises in west) and takes 58.4 days for it to set. Thick
Differential Rotation
mass
32. The powdered stone fragments that make up the lunar 'soil'
Lagrangian Razor
Color Index
regolith
Neutron Star
33. The slow wobble of the Earth on its rotation axis.
accretion
Precession
Neutron Star
Milky way Galaxy
34. A star that is burning hydrogen to helium in a shell surrounding it's core
White Dwarf
Cepheid Variable
Hubble constant
Red Giant Branch Star
35. Earth
Blackbody Curve
Ecliptic
Most dense
MOONS: roundest shape
36. The layer of the sun just above the photosphere
Blackbody Curve
tectonics of Venus
Chromosphere
Sb spiral galaxy
37. The law that describes the blackbody curve - and let to quantum mechanics.
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38. A fusion process in which protons build together to form helium
Gravitational Lens
Proton-proton chain
greehouse effects
Kirkwood gaps
39. The oldest part of the Milky Way
mass
Halo
Parallax
Big Bang
40. First accurately measured the speed of light in a vacuum
Ole Roemer
critical density
CMB
conjunction
41. The science of measuring light energy by wavelength.
Spectroscopy
reflection star clusters
Electromagnetic Radiation: Microwave
HII Region
42. Jupiter
Apparent Magnitude
most moons
Main Sequence Stars
Cosmological Principle
43. Mercury
Sc spiral galaxy
thinnest atmosphere
Secondary Mirror
Olber's paradox
44. Moon in less than the angular diameter of the Sun.
matter dominated universe
Annular Eclipse
cosmic fireball
Largest diameter
45. The gap etween saturn's A and B rings
Light Curve
contrast northern lowlands and the southern highlands of mars...
Cassini division
hottest surface
46. A change in the wavelength of light caused by a motion between the observer and light (or wave) source (blue shift if getting closer - red shift if moving away)
Doppler Shift
mass
Rich vs poor clusters
Oort Cloud
47. A cloud of ionized hydrogen. Formed when young stars heat the surrounding gas
general star population
radio galaxy
CCD
HII Region
48. Long - meandering cliff formed when a planet surface cools and shrinks
Dark Matter
High and low pressure which stretch into bands due to the rapid differential rotation. deeper - darker colors are in the belts and zones are lighter
scarp
MOONS: largest size
49. Long - meandering cliff formed when a planet surface cools and shrinks
density waves
scarp
terrestrial planet
Instability strip
50. Poitns of gravitational stability in the orbit of a planet
Lagrangian Razor
Thickest atmosphere
Open Cluster
It does not have to expand into anything. It might just be that the 3 dimensions of space are getting bigger. It may also be that our 3 spatial dimensions are expanding into higher dimensions if such things exist.
Sorry!:) No result found.
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