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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
H2 Regions
condensation temperature
Cassini division
most moons
2. The oldest terrain on the moon
highlands
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.
Gravitational Lens
jovian
3. A continuous spectrum of light missing energy at a few wave lengths.
cosmological red shift
Absorption Spectrum
tectonics of Mars
Photosphere
4. A subatomic particle with a negative charge. It creates light.
Electron
blazar
dark matter
cosmological principle
5. The location in the Milky Way where stars orbit like a solid wheel
retrograde motion
Vernal Equinox
Halo
Bulge
6. Ganymede and Titan
Neutron Star
Cassini division
Parsec
MOONS: larger than mercury
7. All wavelengths of light emitted by a blackbody.
Blackbody Curve
E=mc2
quarks
Maria
8. When massive objects bend space and time enough to create multiple images of an object located behind them
Grand design spirals
Earth resurfaces itself due to erosion and plate tectonics - while the moon has neither.
Main Sequence
Gravitational Lens
9. Plate tectonics due to thickness of crust and maintain their general form when they collide-where most volcanoes are.
Yes - frozen at the poles- remains protected from the suns rays
tectonics of Earth
molecular clouds
era of recombination
10. A small chunk of rock in space
radio lobe
rotation curve = dark matter?
meteoriod
Electromagnetic Radiation: Ultraviolet Light
11. Venus (retrograde)
Ecliptic
fastest rotation
chemical differentiation
slowest rotation
12. The fate of the universe if it is closed. The universe expanding as much as possible and then retracting
Shepherd satellite
rotation curve = dark matter?
zone
Big Crunch
13. Ancient stream channels - flood planes - and sedimentary-type rock. Frozen water is found in the polar ice caps and in the soil.
Void
matter dominated universe
condensation temperature
evidence of water on mars
14. Comglomerates of ice and rock that orbit the sun in highly elliptical paths
comet
Active Optics
dark matter
Cosmic Microwave Background (CMB)
15. 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.
conjunction
Jupiters red spot
Electromagnetic Radiation
Coronal Loop
16. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.
retrograde motion
Red Giant Branch Star
Halo
Negative - Diverge - Less than 1
17. A phenomenon seen when the Earth passes through the orbit of a burned out comet
Resolving Power
tectonics of Mars
Pixel
meteor shower
18. A huge sphere of tenuous gas surrounding the nucleus of a comet
coma
CNO Cycle
Zenith
Differential Rotation
19. A word meaning 'the same everywhere throughout.'
homogeneous
Grand design spirals
Cosmic Microwave Background (CMB)
Most dense
20. What Ole Roemer used to measure the speed of light in a vacuum
Eclipses of the Moons of Jupiter
nova
MOONS: thickest atmosphere
Plague
21. The science of measuring light energy by wavelength.
Spectroscopy
Apollo asteroids
Energy Level
Coronal Loop
22. Dark areas on the sun that are cooler than the surrounding photosphere
Sunspots
Gravity only pulls matter back together. Therefore - if gravity is the only force that operates on cosmic scales then the expansion of the universe should decrease with time. The critical density is the value of matter density sufficient to halt the
reflection star clusters
Absolute Magnitude
23. A spread of light with an uninterrupted wavelength distribution of energy.
Blackbody Curve
Neutron Star
Atomic Number
Continuous Spectrum
24. A telescope that uses mirrors to focus light
Ecliptic
Reflector
disk
Plague
25. Why does the earth have few craters while the moon has many?
Flat - Flat
Black Hole
Particle Horizon
Earth resurfaces itself due to erosion and plate tectonics - while the moon has neither.
26. All wavelengths of light emitted by a blackbody.
neutrino
shape and color of ELLIPTICAL galaxies
Blackbody Curve
Light: travels like a wave - detected like a particle
27. The location in the Milky Way where stars orbit like a solid wheel
fastest rotation
Bulge
roche limit
solar nebula
28. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.
greehouse effects
Flocculent spirals
Dark matter candidates
rotation curve=winding dilemma?
29. A phenomenon seen when the Earth passes through the orbit of a burned out comet
Inverse Square Law
Cosmic Microwave Background (CMB)
Atomic Number
meteor shower
30. The fate of the universe if it is closed. The universe expanding as much as possible and then retracting
density parameter
Superior planets
3 reasons we orbit satellites to observe universe
Big Crunch
31. 1-orbit aroudn the sun 2- are in hydrostatic equilibrium and 'mostly round' 3- have not cleared debris around its orbit 4- are not satellites
Annular Eclipse
Dwarf planets
Stephen-Boltzman Law
highlands
32. Is there water on the moon?
meteorite
Hyashi track
Yes - frozen at the poles- remains protected from the suns rays
Grand design spirals
33. A plot of star absolute magnitude verses spectral type.
matter dominated universe
Enke gap
dark energy
H-are Diagram
34. A prominence seen against the disk of the sun
Filament
Electromagnetic Radiation: X-Ray
Seeing
Turn off Point
35. 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.
Oort cloud
Hydrostatic Equilibrium
E=mc2
Coldest surface
36. Ancient stream channels - flood planes - and sedimentary-type rock. Frozen water is found in the polar ice caps and in the soil.
evidence of water on mars
tectonics of Earth
Planck time
Occam's razor
37. A large and bright but cool star.
Red Giant
SETI
terrestrial planet
Drake equation
38. Atmosphere blocks high energy wavelengths - atmosphere blurs optical radiation - atmosphere absorbs some radiation at all wavelengths even when it gets through.
3 reasons we orbit satellites to observe universe
Supercluster
partile horizon
direct motion
39. 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
superclusters
Electromagnetic Radiation
solar nebula
40. Formed from slow rotating clouds - collapsed quicker - initial star formation rate is high but died out - older - little rotation - look redder
Perihelion
shape and color of ELLIPTICAL galaxies
belt
Gravitational Lens
41. A word meaning 'the same in all directions.'
How is winding dilemma solved?
acceleration
Primary Mirror
isotropic
42. An efficient - two-dimensional electronic light detector. Common in digital cameras - they revolutionized astronomical imaging
Degeneracy
CCD
Radio Galaxy
Cassegrain Focus
43. The final end state of an intermediate to high mass star. An entity in which all the electrons have been pushed into the protons.
Neutron Star
Astronomical Unit
slowest rotation
rotation curve = dark matter?
44. A star that is in the process of forming. It glows from gravitational contraction
terrestrial planet
thinnest atmosphere
Positive - Converge - Greater than 1
protostar
45. The law stating that hotter blackbodies look bluer than cooler blackbodies.
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46. A streak of light in the atmosphere
SETI
meteor
Ammonia - methane - and water
Doppler Shift
47. The powdered stone fragments that make up the lunar 'soil'
Chandrasekhar Limit
Make up of the jovian planets
regolith
Sa spiral galaxy
48. The mix of pure photon energy that emerged at the start of the universe.
Void
Thermal Equilibrium
Halo
cosmic fireball
49. The average distance between the Earth and the Sun (=1.5 x10^8km)
Summer Solstice
Electromagnetic Radiation: X-Ray
Astronomical Unit
Nowhere visible to us. If there are higher dimension then the center would be visible to someone who lives in one. If there are no higher dimensions then the center does not exist.
50. The lens in a telescope used to determine the magnification
The Local Group
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.
Asymptotic giant Branch Star
Eyepiece Lens