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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 number of protons in an atom.
MOONS: larger than mercury
Electromagnetic Radiation: Gamma Ray
Parsec
Atomic Number
2. A measure of the ability of a telescope to see fine detail
Electromagnetic Radiation: Microwave
Resolving Power
Electron
Planetary Nebula
3. The mirror that determines the focus configuration of a reflector
coma
Neutron Star
Terrestrial Planets
Secondary Mirror
4. 30AU to 50Au from sun - consists of ancietn premordial objects made of frozen ice and dust-35000 objects or more that are larger than 100 km in diameter and many more smaller than this
Sc spiral galaxy
Kuiper belt
Terrestrial Planets
Spectroscopic Parallax
5. A word meaning 'the same in all directions.'
scarp
Radiative Diffusion
isotropic
Extrasolar Planet
6. After stars form they pump light energy into surrounding gas causing it to heat up and glow (H2=ionized hydrogen - H1= neutral hydrogen in molcular couds)
deferent
H2 Regions
Winter Solstice
difference between maria and highlands of the moon.
7. Very center of galaxy. suggestion of a black hole
Dark Nebula
roche limit
Neutron Star
nucleus
8. Plate tectonics due to thickness of crust and maintain their general form when they collide-where most volcanoes are.
cosmic singularity
tectonics of Earth
Wein's Law
Milky way Galaxy
9. A very low mass particle formed in solar fusion reactions that reacts only weakly with matter
Primary Mirror
Dark Nebula
neutrino
MOONS: most geologically active
10. The wavelengths where a specific element can absorb or emit light.
Liquid metallic hydrogen
Spectral Lines
Refractor
Cepheid variables
11. The projection of the Earth's equator onto the celestial sphere.
Hyashi track
Red Giant Branch Star
dark energy
Celestial Equator
12. Any change in the speed or direction of an object's motion
Photosphere
acceleration
Cosmic Microwave Background (CMB)
Poor Cluster
13. The law that predicts the possible types of spectra.
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14. In Ptolemy's geocentric solar system - the small circle on which a planet moved.
CCD
epicycle
gravity
High Velocity Stars
15. The rotation of a star or planet at different speeds at its equator and poles
differential rotation
Gamma-ray Burst
Electromagnetic Radiation
Halo
16. The amount an image is enlarged by a telescope
Magnification
Cosmological Principle
Big Crunch
Thermal Equilibrium
17. A small round distribution of gas surrounding a dying star
Kirchhoff's Law
Geocentric
cosmic singularity
Planetary Nebula
18. Dark - reddish - low-pressure bands in Jupiter's atmosphere
High Velocity Stars
resonance
Radiative Diffusion
belt
19. All wavelengths of light emitted by a blackbody.
Blackbody Curve
Steady State Theory (Leads to Olber's Paradox)
cosmology
meteorite
20. 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)
Doppler Shift
Black Hole
bulge
Open Cluster
21. The sinking of denser elements to the center of a young molten planet
hottest surface
Secondary Mirror
Occam's razor
chemical differentiation
22. Then the Sun moves from north to south across the celestial equator (about September 23)
Electromagnetic Radiation: Ultraviolet Light
protostar
Autumnal Equinox
Neutron Star
23. The point where an inferior planet is as far away from the sun as it can be (as seen from the Earth)
greatest elongation
radio galaxy
Jupiters red spot
Focal Length
24. A very distant - star-like object with huge - broad emission lines. Probably the nucleus of a distant active galaxy.
AGN
Planck time
quasar
Dark Nebula
25. A representation of the changes in color and brightness of an evolving protostar.
Positive - Converge - Greater than 1
Hyashi track
protostar
radiation pressure
26. A long-lived high-pressure bulge in Jupiter's southern hemisphere
meteor shower
Metals
great red spot
fastest rotation
27. The measure of a variable star's apparent magnitude as it brightens and dims with time
Cepheid variables
inferior planets
Light Curve
Big Crunch
28. Flat disk with gas - dust - H2 regions - molecular clouds - dust young stars and remnants of old planetary nebula and supernova remnants. stars spin together with similar velocities called differential rotation
Ecliptic
Vernal Equinox
disk
Clouds of sufuric acid (very inhospitable and brightest object in the sky) - process called greenhouse affect traps radiation making it 900 degrees at times - spins with retrograde rotation (sun rises in west) and takes 58.4 days for it to set. Thick
29. 10^2 nm 10^7 nm
Electromagnetic Radiation: Radio
Plank's Law
Electromagnetic Radiation: Gamma Ray
Interstellar Extinction
30. The area behind a lens where images are resolved
most eccentric orbit
Neutron Star
Supercluster
Focal Plane
31. A particle of light.
Photon
300000 KM/sec
accretion
Roundest orbit
32. The light produced when particles from the sun collide with atmospheric molecules
aurora
Electromagnetic Radiation: Radio
Gravitational Lens
CCD
33. The rock that makes up the lunar maria
mare basalt
shape and color of ELLIPTICAL galaxies
Brown dwarf
Drake equation
34. A spherical shell of comets that orbit the sun at a great distance (roughly two light years from the sun)
jovian
Red Giant Branch Star
Coronal Loop
Oort cloud
35. The imaginary sphere centered on the Earth that hols the stars.
MOONS: most geologically active
Celestial Sphere
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.
greehouse effects
36. The line on an H-are diagram going from upper left to lower right where normal stars of different masses reside.
fastest rotation
Gamma ray bursts
2 Reasons Why there are Supermassive Black holes at the center of every Galaxy
Main Sequence
37. Then the Sun moves from north to south across the celestial equator (about September 23)
Autumnal Equinox
chondrite
Particle Horizon
condensation temperature
38. The layer of the sun just above the photosphere
Chromosphere
Jupiters red spot
disk
radiation pressure
39. The organization of clusters of galaxies into sheets and strings
A family of radiant energy- includes light
radio galaxy
Supercluster
Colestial Pole
40. The temp at which a substance in the vacuum of space solidifies
Primary Mirror
Photosphere
condensation temperature
Winter Solstice
41. Arcs of increased mass concentration that slow stars and gas down as they orbit through which cause the formation of stars.
density waves
supernova
quarks
acceleration
42. The imaginary sphere centered on the Earth that hols the stars.
300000 KM/sec
Celestial Sphere
The Big Bang Theory
Red Giant Branch Star
43. Largest moon in solar system - two differenet types of terrain - darker terrain is older - NOT ACTIVE SURFACE
tectonics of Earth
Ganymede (Jupiter)
Emission Spectrum
Photometry
44. The measure of a variable star's apparent magnitude as it brightens and dims with time
epicycle
homogeneous
Light Curve
Apollo asteroids
45. How did Earth come to have an oxygen rich atmosphere?
Turn off Point
coma
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.
Pixel
46. A collection of galaxies like the one the Milky Way belongs to
Dark matter is located at center of clusters - pulling the cluster members into faster orbits--dark matter gravity keeps objects in galxies bound.
Most dense
Poor Cluster
Coronal Loop
47. A spectrum of light with energy at only a few wavelengths.
Emission Spectrum
radiation dominated universe
Spectroscopic parallax
Spectroscopic parallax
48. Rich= dense crowded cores of galaxies - poor= few members and a looser organization of galaxies
evidence of water on mars
Particle Horizon
acceleration
Rich vs poor clusters
49. Consists of old red stars in slow orbits that plunge through disk and bulge. about 1% are old - round globular clusters.
Light Pollution
Parallax
highlands
Halo
50. What do we think the actual fate of the universe will be and why do we think this?
Blackbody
open star clusters
protostar
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.
Sorry!:) No result found.
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