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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 final end state of an intermediate to high mass star. An entity in which all the electrons have been pushed into the protons.
gravity
Ole Roemer
most eccentric orbit
Neutron Star
2. Large nebula consisting of very cold gas and dust
Halo
inferior planets
Maria
Molecular Clouds
3. A very low mass particle formed in solar fusion reactions that reacts only weakly with matter
Apollo asteroids
Celestial Equator
neutrino
Cosmological Principle
4. Population 1 with higher metals and contain many young stars in star clusters. Distribution of stars is everywhere in disk (arms only have 5% more stars)
general star population
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.
Proton-proton chain
inferior planets
5. A plot of star absolute magnitude verses spectral type.
chondrite
H-are Diagram
meteor shower
smallest diameter
6. Dark areas on the sun that are cooler than the surrounding photosphere
Flat - Flat
Sunspots
A family of radiant energy- includes light
CNO Cycle
7. What is the universe expanding into?
planetesimal
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.
supernova
Population 1 vs Population 2 stars
8. A planet orbiting about a distant star
Flare
Extrasolar Planet
Globular Cluster
Differential Rotation
9. A bright area of higher temperature that often proceeds the formation of sunspots.
Titus-Bode Law
molecular clouds
Plague
OB Associations
10. A toroidal or donut-shaped collection of material attracted to a central body like a star or black hole. Dust around an object
accretion disk
plate tectonics
Atomic Number
force
11. The location in the Milky Way where stars orbit like a solid wheel
thinnest atmosphere
Asymptotic giant Branch Star
Open - flat - and closed.
Bulge
12. An object that may remain after a star explodes
Magnification
Nucleus
shape and color of ELLIPTICAL galaxies
Neutron Star
13. The apparent path of the Sun through the stars on the celestial sphere.
reflection star clusters
Ecliptic
Umbra
radio galaxy
14. A cloud of ionized hydrogen. Formed when young stars heat the surrounding gas
accretion disk
Particle Horizon
E=mc2
HII Region
15. A fusion process in which protons build together to form helium
evidence of water on mars
aphelion
Proton-proton chain
Parallax
16. Titan
MOONS: thickest atmosphere
MOONS: largest size
High Velocity Stars
HII Region
17. Jupiter
most moons
Jovian Planets
Planetary Nebula
dark matter
18. A measure of the ability of a telescope to see fine detail
dark energy
density
Resolving Power
Supernova (You can be my supernova girl)
19. The high- temperatature outer layer of the sun
Cosmic Microwave Background (CMB)
Corona
supermassive black hole
most eccentric orbit
20. The apparent backward motion of a planet against the background of stars.
aphelion
retrograde motion
Titus-Bode Law
Black Hole
21. Half of the longest diameter across an ellipse
Flocculent spirals
Blackbody Curve
semimajor axis
belt
22. A galaxy emitting large amounts of energy at long wavelengths.
Big Crunch
accretion disk
Instability strip
radio galaxy
23. The layer of the sun just above the photosphere
Objective Lens
Io (jupiters moon)
Parsec
Chromosphere
24. A crystalline patter found in iron meteorites
density parameter
Magnification
widmanstatten pattern
Electron
25. The light produced when particles from the sun collide with atmospheric molecules
meteor shower
Parallax
Neutron Star
aurora
26. The distance a moon can be from a planet before shattering from tidal forces
Focal Length
The Local Group
Titus-Bode Law
roche limit
27. All possible types of energy that can be emitted and absorbed by atoms.
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.
meteoriod
Electromagnetic Radiation
jovian
28. The law that describes the blackbody curve - and let to quantum mechanics.
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29. The 11 or 22 period on the sun durin which sunspots increase - decrease - change polarity - increase and decrease again.
Sunspot cycle
Main Sequence
Drake equation
shape and color of SPIRAL galaxies
30. The measure of a variable star's apparent magnitude as it brightens and dims with time
Focal Plane
Trojan asteroids
Light Curve
300000 KM/sec
31. A small spherical dark nebula
Seeing
Bok Globule
Supercluster
radiation dominated universe
32. A repeated - periodic push or pull capable of summing into a larger push or pull
tectonics of Earth
Cassegrain Focus
resonance
Pulsar
33. In what chemical form are jupiters nitrogen - carbon and oxygen?
Parallax
Active Optics
Ammonia - methane - and water
Neutron Star
34. Ganymede and Titan
MOONS: larger than mercury
3 reasons we orbit satellites to observe universe
Neutron Star
Grand design spirals
35. The entity from which the whole universe is postulated to have come from.
resonance
inferior 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.
cosmic singularity
36. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.
Negative - Diverge - Less than 1
Ganymede (Jupiter)
shape and color of ELLIPTICAL galaxies
belt
37. How is the Hubble Law consistent with an expanding universe?
In an expanding universe all galaxies see all other galaxies that are not gravitationally bound to them receding away. This is what we see in the Hubble Law. We infer that the Hubble law also holds true for all other galaxies.
scarp
Instability strip
Big Crunch
38. The process responsible for creating the arms of flocculent spiral galaxies
300000 KM/sec
Self-Propogating Star Formation
Convection
homogeneous
39. 1μm 100 nm
great red spot
Summer Solstice
Electromagnetic Radiation: Visible Light
H-are Diagram
40. An important quality of telescopes that increases as the square of the primary mirror or objective lens
Trojan asteroids
greehouse effects
force
Light Gathering Power
41. If stars have diff orbital periods - than any arms formed by stars will wind into a tight spiral pattern (billion yrs or so)
inferior planets
rotation curve=winding dilemma?
MOONS: larger than mercury
partile horizon
42. A star that erratically and explosively brightens and dims
Nova
Sa spiral galaxy
Coronal Loop
belt
43. The particle horizon is the farthest we can see. It exists because the universe had a beginning and thus a definite age. Light from distances farther away from the particle horizon have not had time to reach us yet.
Halo
Yes - frozen at the poles- remains protected from the suns rays
Particle Horizon
Milky way Galaxy
44. Sulfurous volcanoes - pools of liquid sulfur - surface resembles cheese pizza ACTIVE SURFACE
Io (jupiters moon)
greehouse effects
Disk
jovian
45. 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.
Objective Lens
difference between maria and highlands of the moon.
Triple Alpha rocess
Kuiper belt
46. The equation that describes how matter equates with energy
tectonics of Mars
Light-Year
2 Reasons Why there are Supermassive Black holes at the center of every Galaxy
E=mc2
47. In what chemical form are jupiters nitrogen - carbon and oxygen?
Ammonia - methane - and water
Cosmic Microwave Background (CMB)
radio galaxy
Titus-Bode Law
48. A point in the sky where meteors appear to come from during a shower
radiant
Vernal Equinox
Hubble law
Degeneracy
49. The wavelengths where a specific element can absorb or emit light.
planetary nebula
Spectral Lines
regolith
Convection
50. Mercury
Doppler Shift
thinnest atmosphere
Inverse Square Law
terrestrial planet