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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. Sudden blasts of gamma radiation from a very distant galaxy caused possibly by a supernova explosion.
Sa spiral galaxy
Gamma ray bursts
Reflector
Electromagnetic Radiation: Ultraviolet Light
2. The location of a supermassive black hole
Nucleus
Celestial Sphere
Eyepiece Lens
Europa (Jupiters moon)
3. A bright area of higher temperature that often proceeds the formation of sunspots.
Plague
general star population
Photosphere
Blackbody
4. The apparent magnitude a star would have if it were at a distance of 10 parsecs.
Absolute Magnitude
Planetary Nebula
AGN
homogeneous
5. A collection of comets in the plane of the solar system - located beyond the orbit of Pluto
evidence of water on mars
Ecliptic
Kuiper belt
self-propagating star formation
6. Loops that trace the magnetic field as it erupts from a sunspot area and arches over to an adjacent area. They glow in the light of gas pouring out of corona and falling into photosphere.
Coronal Loop
E=mc2
evidence of water on mars
Make up of the jovian planets
7. A measure of how an object resists accelerating when acted upon by a force. It is proportional the amount of matter in an object
Electromagnetic Radiation
mass
Atomic Number
Electromagnetic Radiation: Infrared
8. A planet that is farther from the sun than the Earth is
Rich Cluster
White Dwarf
Superior planets
Electromagnetic Radiation: Ultraviolet Light
9. Rich= dense crowded cores of galaxies - poor= few members and a looser organization of galaxies
E=mc2
density waves
Rich vs poor clusters
Coronal Loop
10. Earth
Coldest surface
Most dense
Colestial Pole
Apparent Magnitude
11. The gap inthe outer portion of Saturn's A ring
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.
Rich Cluster
Enke gap
Instability strip
12. A change in the wavelength of light caused by a motion between the observer and light (or wave) source (blue shift if getting closer - red shift if moving away)
Corona
mare basalt
Black Hole
Doppler Shift
13. A measure of the seasonal shifting of a star's position against farther stars or galaxies. The closer the star - the greater is the angular distance it shifts. We use it to find distances to stars that are up to 1000 pc away.
Objective Lens
Terrestrial Planets
Electromagnetic Radiation: X-Ray
Parallax
14. Dark areas on the sun that are cooler than the surrounding photosphere
radiation dominated universe
3 reasons we orbit satellites to observe universe
Largest diameter
Sunspots
15. 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
Light Pollution
meteor
Shepherd satellite
16. The apparent backward motion of a planet against the background of stars.
Open - flat - and closed.
retrograde motion
Electromagnetic Radiation: Infrared
most moons
17. Ancient stream channels - flood planes - and sedimentary-type rock. Frozen water is found in the polar ice caps and in the soil.
Nucleus
Coronal Loop
evidence of water on mars
Maria
18. The place in the sky that the Earth's axis points toward (can be either north or south)
Ground State
Chandrasekhar Limit
Colestial Pole
Electromagnetic Radiation: Microwave
19. A star that is in the process of forming. It glows from gravitational contraction
Halo
coma
Kuiper belt
protostar
20. A planet that is closer to the sun than the earth
inferior planets
great red spot
neutrino
Cosmic Microwave Background (CMB)
21. A small and dim but hot star.
Blackbody Curve
meteor
radio lobe
White Dwarf
22. When material is heated and moves taking the heat energy with it
Convection
Seyfert galaxy
supernova
Heliocentric
23. A telescope that uses lenses to focus light
Grand design spirals
Reflector
Refractor
H2 Regions
24. The science of measuring light energy by wavelength.
Electromagnetic Radiation
Spectroscopy
Thermal Equilibrium
Electron
25. The rotation of a star or planet at different speeds at its equator and poles
highlands
Photon
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.
differential rotation
26. A crystalline patter found in iron meteorites
Electromagnetic Radiation: Gamma Ray
quarks
widmanstatten pattern
neutrino
27. The point directly overhead.
belt
dark matter
jovian
Zenith
28. When the Sun moves from south to north across the celestial equator (about March 21)
White Dwarf
Objective Lens
Vernal Equinox
Nucleus
29. A particle of light.
Parsec
nova
Photon
Callisto (Jupiter)
30. The opaque universe that existed for 300000 years after the Big Bang. (photons outnumbered nuclei by 1 billion to one - so less light)
radiation dominated universe
Degeneracy
Coronal Loop
Plague
31. A quantity measuring the stability of the Earth's atmosphere
Ionization
MOONS: most geologically active
Oort Cloud
Seeing
32. A star that erratically and explosively brightens and dims
Interstellar Extinction
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.
Galilean satellite
Nova
33. Centered on the sun.
blazar
Heliocentric
Inverse Square Law
cosmic fireball
34. 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.
greatest elongation
Self-Propogating Star Formation
roche limit
difference between maria and highlands of the moon.
35. A star that is in the process of forming. It glows from gravitational contraction
semimajor axis
protostar
cosmic singularity
Brown dwarf
36. The high- temperatature outer layer of the sun
Corona
fusion crust
Eyepiece Lens
Cassegrain Focus
37. Sc galaxies
resonance
Flocculent spirals
OB Associations
Electromagnetic Radiation: Visible Light
38. Wave- only waves cause an interference pattern when passing through a double slit - particle- only particles deposit energy at specific locations (the way an image builds up on digital camera)
planetesimal
Titus-Bode Law
Light: travels like a wave - detected like a particle
Drake equation
39. The dark - relativley smooth areas on the moon; Latin for sea
deferent
How is winding dilemma solved?
Maria
disk
40. Material that shoots rapidly out into space. Flares cause Auroras
Light: travels like a wave - detected like a particle
Colestial Pole
Flare
Kirchhoff's Law
41. 10 cm -> 1 mm
Color Index
opposition
MOONS: thickest atmosphere
Electromagnetic Radiation: Microwave
42. Milky way galaxy is a member - a small poor cluster-about 30 galaxies
Nebula
Europa (Jupiters moon)
High and low pressure which stretch into bands due to the rapid differential rotation. deeper - darker colors are in the belts and zones are lighter
The Local Group
43. A spinning neutron star
Sunspot cycle
Electromagnetic Radiation
Pulsar
Chandrasekhar Limit
44. In Ptolemy's geocentric solar system - the large circle on which a planet's epicycle moved around the Earth.
solar nebula
weight
meteor shower
deferent
45. The material from which the solar system formed
Metals
High Velocity Stars
SETI
solar nebula
46. A particle of light
Globular Cluster
Make up of the terrestrial planets
Photon
Cassini division
47. Electromagnetic Radiation
Synodic Day
MOONS: largest size
A family of radiant energy- includes light
tectonics of Mars
48. A large - irregularly shaped rocky object orbiting the sun mostly between mars and jupiter. Left-over planetesimals
H2 Regions
Grand design spirals
asteroid
Electromagnetic Radiation: Visible Light
49. A word meaning 'the same everywhere throughout.'
Grand design spirals
Instability strip
homogeneous
Main Sequence
50. 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
meteor shower
cosmic singularity
The Big Bang Theory
Electromagnetic Radiation: Radio