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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 science of measuring light energy by wavelength.
Spectroscopy
isotropic
Nebula
Olber's paradox
2. Saturn
least dense
Population 1 vs Population 2 stars
Halo
Dark Nebula
3. Sa - Sb galaxies where two magnificent arms wind their way from nucleus out in a symmetrical manner.
Maria
Grand design spirals
general star population
radiant
4. The elementary building blocks from which protons and neutrons are formed.
partile horizon
Convection
greatest elongation
quarks
5. Venus (retrograde)
accretion disk
meteorite
MOONS: largest size
slowest rotation
6. Material that shoots rapidly out into space. Flares cause Auroras
CNO Cycle
If it is in a denser medium - such as glass - it will move slower
Flare
great red spot
7. The rotation period of the Earth measured relative to the Sun.
Population 1 vs Population 2 stars
Synodic Day
300000 KM/sec
tectonics of Earth
8. A word meaning 'the same everywhere throughout.'
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.
aurora
homogeneous
CMB
9. The most mass a white dwarf can have before collapsing to a neutron star
smallest diameter
Emission Spectrum
Chandrasekhar Limit
Oort Cloud
10. Small bulges - loosely wound - massive arms - arms have many H2 regions and look very lumpy
greatest elongation
Doppler Shift
Titus-Bode Law
Sc spiral galaxy
11. The oldest terrain on the moon
Planck time
Synchrotron Rotation
Olber's paradox
highlands
12. The act of removing an electron from an atom.
great dark spots
cosmic fireball
Ionization
blazar
13. A collection of galaxies like the one the Milky Way belongs to
Enke gap
Ground State
Instability strip
Poor Cluster
14. Extends to a distance of 50000AU. Same objects as in the Kuiper belt-when they fall in toward the sun they become comets. Debris from comets hitting the Earths atmosphere cause meteor showers.
Synodic Day
Oort Cloud
Drake equation
disk
15. An object that may remain after a star explodes
Neutron Star
Coronal Loop
greehouse effects
Absorption Spectrum
16. Hurricane-like vortex in southern-hemisphere winds to north and south blow in opposite directions which keep it spinning and with no subsurface features like mountians it persists.
Secondary Mirror
Jupiters red spot
Dark Matter
quasar
17. An entity that is likely in the nucleus of most - if not all - galaxies.
Convection
tectonics of Earth
MOONS: thickest atmosphere
supermassive black hole
18. Approximate speed of light in a vacuum
Absorption Spectrum
cosmological red shift
Negative - Diverge - Less than 1
300000 KM/sec
19. The lowest energy of an atom.
Inverse Square Law
Interstellar Extinction
nova
Ground State
20. The movement of the Earth's crustal plates riding on top of the mantle.
cosmic fireball
plate tectonics
Triple Alpha rocess
Plank's Law
21. The mix of pure photon energy that emerged at the start of the universe.
Dark Nebula
Corona
widmanstatten pattern
cosmic fireball
22. Formed rapidly - collapsed slower into disk shape - star birth rate is low but lasts longer and ongoing - contain higher mass blue stars.
evidence of water on mars
differential rotation
cosmic singularity
shape and color of SPIRAL galaxies
23. 10 cm -> 1 mm
quasar
Corona
Filament
Electromagnetic Radiation: Microwave
24. The dark - relativley smooth areas on the moon; Latin for sea
Maria
matter dominated universe
Resolving Power
Light Pollution
25. Saturn
rotation curve=winding dilemma?
Gamma ray bursts
Titus-Bode Law
least dense
26. The fusion process that turns three helium nuclei into a carbon nucleus
Triple Alpha rocess
Filament
Yes - frozen at the poles- remains protected from the suns rays
The Big Bang Theory resolves Olber's Paradox
27. Clouds of low density gas often found glowing faintly on either side of an AGN.
radiation pressure
interstellar dust
radio lobe
3 reasons we orbit satellites to observe universe
28. Long - meandering cliff formed when a planet surface cools and shrinks
Dwarf planets
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.
Kirchhoff's Law
scarp
29. The equation that describes how matter equates with energy
Rich Cluster
density parameter
E=mc2
Radiative Diffusion
30. A prominence seen against the disk of the sun
Poor Cluster
E=mc2
Milky way Galaxy
Filament
31. Latin for 'cloud'. A word used to describe the collections of gas and dust in the Milky Way and other galaxies
Big Bang
Coronal Loop
Nebula
Precession
32. A long-lived high-pressure bulge in Jupiter's southern hemisphere
great red spot
bulge
Synchrotron Rotation
Drake equation
33. Highlands: rocks are made of lighter anorthosite (similar to old earth rocks) Maria: rocks made of heavy mare basalt (volcanic rock) everywhere else is loose regolith created by meteoric impact.
retrograde motion
Atomic Number
difference between maria and highlands of the moon.
Extrasolar Planet
34. When a planet lines up with the sun inthe sky
conjunction
Terrestrial Planets
Largest diameter
Light: travels like a wave - detected like a particle
35. In a FLAT UNIVERSE(our universe) - the curvature of space-time is ________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.
The Local Group
Flat - Remain Parallel - Exactly 1
meteor shower
Annular Eclipse
36. The measure of a variable star's apparent magnitude as it brightens and dims with time
MOONS: larger than mercury
radio galaxy
Brown dwarf
Light Curve
37. The cosmological principle is the assumption that the universe is isotropic and homogeneous.The Big Bang assumes it to be a correct principle so that what we observe is exactly like What is too far away to be observed.
era of recombination
Cosmological Principle
Flocculent spirals
quasar
38. Formed from slow rotating clouds - collapsed quicker - initial star formation rate is high but died out - older - little rotation - look redder
shape and color of ELLIPTICAL galaxies
Quasar
Reflector
Light Pollution
39. The time when the universe cooled sufficiently for atoms to exist. radiation dominated= first 300000 years - THEN era of recombination turns into matter dominated for next.
tectonics of Earth
Molecular Clouds
Hydrostatic Equilibrium
era of recombination
40. The science of measuring light energy by wavelength.
Poor Cluster
Yes - frozen at the poles- remains protected from the suns rays
Spectroscopy
Inverse Square Law
41. Latin for 'cloud'. A word used to describe the collections of gas and dust in the Milky Way and other galaxies
Seeing
Turn off Point
Nebula
Most dense
42. When the Sun moves from south to north across the celestial equator (about March 21)
Wein's Law
Spectroscopic Parallax
Electromagnetic Radiation: Microwave
Vernal Equinox
43. The surface of the sun
Bok Globule
Photosphere
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.
radiation pressure
44. A spread of light with an uninterrupted wavelength distribution of energy.
Galilean satellite
jovian
Energy Level
Continuous Spectrum
45. The dimming of starlight by intervening dust
Instability strip
Interstellar Extinction
Bok Globule
Flat - Remain Parallel - Exactly 1
46. The dimming of starlight by intervening dust
Zenith
belt
Cepheid variables
Interstellar Extinction
47. Matter so dense that even light cannot escape its gravity
Photosphere
Black Hole
Hyashi track
Proton-proton chain
48. The location of a supermassive black hole
Nucleus
partile horizon
Electromagnetic Radiation
aphelion
49. A bridge of material held in position above the solar surface. They can remain for hours even days
Prominence
quasar
Blackbody
Ganymede (Jupiter)
50. The Big Bang says that the universe has not existed forever. It had a distinct beginning about 14 billion years ago called the 'Big Bang'. Therefore light from any object more than 14 billion light years away has not had time to reach us. The other p
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