SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. If stars have diff orbital periods - than any arms formed by stars will wind into a tight spiral pattern (billion yrs or so)
Prominence
Disk
rotation curve=winding dilemma?
direct motion
2. The first rock-sized bodies that formed in the solar nebula from dust grains
Light Curve
Cosmic Microwave Background (CMB)
smallest diameter
chondrite
3. Radiation (possibly left over from the big bang) that fills the universe. Perfect black body spectrum and tells us a bit aout how galaxies are formed.
Horizontal Branch Star
synchronous rotation
Cosmic Microwave Background (CMB)
inferior planets
4. A term referring to Earth-like planets
terrestrial planet
Light Pollution
shape and color of SPIRAL galaxies
regolith
5. Mercury
fastest rotation
thinnest atmosphere
Blackbody
Absorption Spectrum
6. A planet that is farther from the sun than the Earth is
Flat - Flat
Color Index
Superior planets
Synchrotron Rotation
7. Heavier elements such as iron - silicon - magnesium - sulfer - nickel
most moons
Make up of the terrestrial planets
Main Sequence
Seyfert galaxy
8. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.
greehouse effects
Jupiters red spot
anorthosite
Open Cluster
9. Extremely round - lots of liquid water - ice rafts on surface ACTIVE SURFACE
Photon
isotropic
jovian
Europa (Jupiters moon)
10. A word meaning 'the same everywhere throughout.'
Meridian
zone
homogeneous
Molecular Clouds
11. 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.
MOONS: most geologically active
Maria
Cosmological Principle
Thickest atmosphere
12. The assumption that the universe is isotropic (same in all directions) and homogeneous (Same everywhere throughout)
density waves
cosmological principle
Molecular Clouds
Photosphere
13. A particle of light.
300000 KM/sec
nucleus
Secondary Mirror
Photon
14. A collection of galaxies like the one the Milky Way belongs to
rotation curve = dark matter?
Zenith
fusion crust
Poor Cluster
15. 100 nm 10 nm
The Big Bang Theory resolves Olber's Paradox
highlands
Electromagnetic Radiation: Ultraviolet Light
chondrite
16. The law stating that hotter blackbodies look bluer than cooler blackbodies.
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
17. All possible types of energy that can be emitted and absorbed by atoms.
widmanstatten pattern
Electromagnetic Radiation
Primary Mirror
H-are Diagram
18. The entity from which the whole universe is postulated to have come from.
rotation curve = dark matter?
cosmological principle
cosmic singularity
chondrite
19. An entity that is likely in the nucleus of most - if not all - galaxies.
Astronomical Unit
Kuiper belt
cosmic singularity
supermassive black hole
20. A plot of star absolute magnitude verses spectral type.
quarks
H2 Regions
Filament
H-are Diagram
21. Matter so dense that even light cannot escape its gravity
Parallax
Black Hole
Flare
Dark matter is located at center of clusters - pulling the cluster members into faster orbits--dark matter gravity keeps objects in galxies bound.
22. Dying large-mass stars lose their outer layers in a violent explosion creating large - chaotic remnants. these brighten like nova but are so much brighter and only occur ONCE PER STAR
The Big Bang Theory resolves Olber's Paradox
Sc spiral galaxy
disk
supernova
23. N=are*Fp(Ne)(Fl)(Fi)(Fc)(L) N: number of civilizations possible to communicate with are*: rate solar-like stars are created Fp: fraction of stars with planets Ne: number of planets like ours Fl: fraction of planets with life Fi: intelligent life Fc:
Coronal Loop
Drake equation
Absorption Spectrum
Extrasolar Planet
24. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.
Hyashi track
direct motion
Negative - Diverge - Less than 1
CCD
25. IO
Electromagnetic Radiation: Microwave
MOONS: most geologically active
Inverse Square Law
Prominence
26. Consists of old red stars in slow orbits that plunge through disk and bulge. about 1% are old - round globular clusters.
Poor Cluster
Astronomical Unit
Halo
Turn off Point
27. 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)
How is winding dilemma solved?
The Local Group
Enke gap
Perihelion
28. A star that has become a red giant for the second and final time. It is burning helium to carbon in a shell surrounding the core
Asymptotic giant Branch Star
Titus-Bode Law
conjunction
density
29. A small and dim but hot star.
E=mc2
Spectroscopic parallax
Vernal Equinox
White Dwarf
30. Radiation emitted when charged particles spiral rapidly in a magnetic field. come off of jets from black holes.
Terrestrial Planets
Positive - Converge - Greater than 1
Jovian Planets
synchrotron radiation
31. Long - meandering cliff formed when a planet surface cools and shrinks
Annular Eclipse
scarp
regolith
Electromagnetic Radiation
32. Neptune or uranus
Coldest surface
Cepheid variables
Population 1 vs Population 2 stars
Particle Horizon
33. The powdered stone fragments that make up the lunar 'soil'
Liquid metallic hydrogen
interstellar dust
radio galaxy
regolith
34. The shadow behind the Earth or Moon where the Sun is partially obscured.
2 Reasons Why there are Supermassive Black holes at the center of every Galaxy
Precession
Titus-Bode Law
Penumbra
35. The amount an image is enlarged by a telescope
most moons
Magnification
cosmological principle
Electromagnetic Radiation
36. When a planet lines up with the sun inthe sky
Absolute Magnitude
conjunction
Radiative Diffusion
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.
37. Relativity predicts that nothing can travel faster than the speed of light in a vacuum - How can it move slower?
Chandrasekhar Limit
Absolute Magnitude
Blackbody Curve
If it is in a denser medium - such as glass - it will move slower
38. A perfect absorber and radiator of electromagnetic radiation.
widmanstatten pattern
Emission Spectrum
gravity
Blackbody
39. Dark areas on the sun that are cooler than the surrounding photosphere
Magnification
Positive - Converge - Greater than 1
Sunspots
Light Gathering Power
40. When particles are compressed to an unnatural state where their pressure is not related to their temperature
Synodic Day
Degeneracy
Make up of the terrestrial planets
contrast northern lowlands and the southern highlands of mars...
41. A younger cluster of stars - found in the galaxy disk
If it is in a denser medium - such as glass - it will move slower
Focal Length
Turn off Point
Open Cluster
42. 10 cm -> 1 mm
homogeneous
Electromagnetic Radiation: Microwave
Make up of the jovian planets
Yes - frozen at the poles- remains protected from the suns rays
43. Any change in the speed or direction of an object's motion
hottest surface
radiation pressure
standard candle
acceleration
44. A subatomic particle with a negative charge. It creates light.
White Dwarf
Flare
synchronous rotation
Electron
45. Half of the longest diameter across an ellipse
Corona
semimajor axis
most moons
Gravitational Lens
46. Venus
Thickest atmosphere
Jovian Planets
Light-Year
Extrasolar Planet
47. The Big Bang was not an explosion of matter into empty space - like the explosion of a bomb. Instead - it was an emergence of space and time filled with pure energy where before none of this was present. The point from which is emerged is called the
The Big Bang Theory
Degeneracy
Focal Length
Chromosphere
48. A crystalline patter found in iron meteorites
widmanstatten pattern
Apollo asteroids
Secondary Mirror
Synodic Day
49. The process responsible for creating the arms of flocculent spiral galaxies
Self-Propogating Star Formation
Steady State Theory (Leads to Olber's Paradox)
Red Giant
Precession
50. 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.
Yes - frozen at the poles- remains protected from the suns rays
Main Sequence Stars
chemical differentiation
difference between maria and highlands of the moon.