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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. Jupiter
Largest diameter
Jupiters red spot
The Big Bang Theory resolves Olber's Paradox
Pixel
2. Long - meandering cliff formed when a planet surface cools and shrinks
mapping the structure of Milky Way disk
Roundest orbit
scarp
coma
3. Distribution of dust (tells us disk is thin) - find distances to O&B stars and H2 regions (arms are sights of star formation and OB stars live and die at location of birth) -Milky way has four arms. Sun is in spur apart from arms.
Atomic Number
Kuiper belt
mapping the structure of Milky Way disk
Titus-Bode Law
4. 10 cm -> 1 mm
Main Sequence
slowest rotation
Electromagnetic Radiation: Microwave
Callisto (Jupiter)
5. The mirror that determines the focus configuration of a reflector
Secondary Mirror
Radiative Diffusion
plate tectonics
rotation curve = dark matter?
6. A collection of comets in the plane of the solar system - located beyond the orbit of Pluto
A family of radiant energy- includes light
Kuiper belt
Asymptotic giant Branch Star
Seeing
7. A galaxy sending out a stream of material from its nucleus
Milky way Galaxy
tectonics of Venus
Radio Galaxy
Galilean satellite
8. When one side of a body always faces the planet it revolves around
Flat - Remain Parallel - Exactly 1
synchronous rotation
most moons
Halo
9. The elementary building blocks from which protons and neutrons are formed.
hottest surface
quarks
Shepherd satellite
Molecular Clouds
10. A galaxy sending out a stream of material from its nucleus
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.
mass
Radio Galaxy
If it is in a denser medium - such as glass - it will move slower
11. Flat disk with gas - dust - H2 regions - molecular clouds - dust young stars and remnants of old planetary nebula and supernova remnants. stars spin together with similar velocities called differential rotation
radio lobe
disk
Photosphere
regolith
12. The point where a superior planet is as far away from the sun as it can be (as seen from the Earth)
Supernova (You can be my supernova girl)
Hubble constant
opposition
CMB
13. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.
isotropic
Coldest surface
greehouse effects
Flocculent spirals
14. Milky way galaxy is a member - a small poor cluster-about 30 galaxies
resonance
radio galaxy
Refractor
The Local Group
15. The law that syas light energy from a blackbody increases as (temperature^4)
dark matter
Stephen-Boltzman Law
rotation curve=winding dilemma?
highlands
16. Old - pock marked - icy surface - interior is not differentiated - geologically dead - NOT ACTIVE SURFACE
Ecliptic
Radio Galaxy
Callisto (Jupiter)
Globular Cluster
17. In Ptolemy's geocentric solar system - the large circle on which a planet's epicycle moved around the Earth.
Focal Length
Halo
deferent
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.
18. Saturn
Electromagnetic Radiation
least dense
resonance
The Big Bang Theory
19. Then the Sun moves from north to south across the celestial equator (about September 23)
Radio Galaxy
Autumnal Equinox
Milky way Galaxy
Hyashi track
20. The dimming of starlight by intervening dust
HII Region
Halo
Density Wave
Interstellar Extinction
21. Radiation given off by electrons accelerating in a magnetic field
molecular clouds
greatest elongation
Synchrotron Rotation
Absorption Spectrum
22. All possible types of energy that can be emitted and absorbed by atoms.
Largest diameter
Electromagnetic Radiation
Meridian
Hyashi track
23. The law stating that hotter blackbodies look bluer than cooler blackbodies.
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24. A star that blows itself apart
Kuiper belt
Supernova (You can be my supernova girl)
Globular Cluster
Light-Year
25. The assumption that the universe is isotropic (same in all directions) and homogeneous (Same everywhere throughout)
zone
cosmological principle
Electromagnetic Radiation
Rich Cluster
26. The science of measuring light energy by wavelength.
Spectroscopy
radiation pressure
cosmology
Void
27. Dark - reddish - low-pressure bands in Jupiter's atmosphere
Main Sequence
belt
Autumnal Equinox
Neutron Star
28. The imaginary sphere centered on the Earth that hols the stars.
Corona
Kuiper belt
blazar
Celestial Sphere
29. Titan
jovian
isotropic
Hydrostatic Equilibrium
MOONS: thickest atmosphere
30. An efficient - two-dimensional electronic light detector. Common in digital cameras - they revolutionized astronomical imaging
smallest diameter
A family of radiant energy- includes light
CCD
bulge
31. Finding a star's absolute magnitude from it's placement on an HR diagram. After finding the absolute magnitude - we measure the apparent magnitude - for a distance modulus and use this to find the distance. This method is good for finding distances t
highlands
Spectroscopic parallax
acceleration
Apparent Magnitude
32. Approximate speed of light in a vacuum
meteoriod
Milky way Galaxy
Flat - Remain Parallel - Exactly 1
300000 KM/sec
33. The process of acquiring material
accretion
Density Wave
Seyfert galaxy
HII Region
34. Material that shoots rapidly out into space. Flares cause Auroras
conjunction
standard candle
Autumnal Equinox
Flare
35. A spinning neutron star
MOONS: thickest atmosphere
greatest elongation
molecular clouds
Pulsar
36. A highly variable galaxy nucleus of which BL Lac is one. Their light is highly energetic and their spectra are featureless. (face on)
Maria
blazar
Kuiper belt
Liquid metallic hydrogen
37. A large and bright but cool star.
Spectroscopic parallax
Ganymede (Jupiter)
greehouse effects
Red Giant
38. The dark - relativley smooth areas on the moon; Latin for sea
Maria
Emission Spectrum
Void
homogeneous
39. A planet that is closer to the sun than the earth
Cosmic Microwave Background
Electromagnetic Radiation: X-Ray
critical density
inferior planets
40. Population 1- similar to the sun and 2% of elements are metal - Population 2- formed before gas was metal- only a fraction of mass is metal.
Geocentric
Dark matter candidates
Winter Solstice
Population 1 vs Population 2 stars
41. The state of having a balance between inflowing and outflowing heat-- the temp at every radial point is different but constant
cosmic singularity
synchronous rotation
Molecular Clouds
Thermal Equilibrium
42. The faint glow of light left over from the Big Bang. cosmic microwave background are the photons that remain after the big bang that have not turned into matter.
most moons
superclusters
CMB
Roundest orbit
43. Neptune or uranus
Cepheid Variable
Coldest surface
mapping the structure of Milky Way disk
Absorption Spectrum
44. Mercury
synchrotron radiation
Resolving Power
tectonics of Earth
most eccentric orbit
45. The mass of an object divided by its volume
Geocentric
least dense
density
Quasar
46. Form honeycomb like patterns surrounding empty or nearly empty voids.
superclusters
We don't know. It might be but does not have to be.
3 reasons we orbit satellites to observe universe
Ole Roemer
47. Jupiter
Neutron Star
Radio Galaxy
most moons
scarp
48. A quantity measuring the stability of the Earth's atmosphere
cosmological red shift
Focal Length
Make up of the terrestrial planets
Seeing
49. 1μm 100 nm
Gamma-ray Burst
radio galaxy
The Big Bang Theory resolves Olber's Paradox
Electromagnetic Radiation: Visible Light
50. The family of radiant energy that includes light as a subset
Plank's Law
Cassegrain Focus
asteroid
Electromagnetic Radiation