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Test your basic knowledge |
Astronomy Basics
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. A rapidly spinning neutron star that produces radio waves
irregular galaxy
pulsar
heliocentric
blue shift
2. A model of the solar system in which Earth and the other planets revolve around the sun
heliocentric
earth's tilt
nova
equinox
3. Influenced by Copernicus; Built observatory and collected data on the locations of stars and planets for over 20 years
perigee
pulsar
Tycho Brahe
precession
4. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
absolute magnitude
the big crunch
irregular galaxy
red dwarf
5. A faint star of enormous density
ellipse
white dwarf
perigee
red shift
6. A very small star with low temperature - reddish in color
red dwarf
blue shift
nebula
spiral galaxy
7. Stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
meteorite
universal gravitation
precession
terrestrial planet
8. Planet with a solid - rocky crust; more dense; Inner planet. Mercury - Venus - Earth - Mars
terrestrial planet
supergiant
Halley's Comet
perigee
9. A space telescope and camera named for a famous astronaut (Edward Hubble) used to study space elements
Hubble Space Telescope
equinox
nebulae
photon
10. The luminous cloud of particles surrounding the frozen nucleus of a comet
aphelion
coma
neutron star
protostar
11. An extremely bright star of very large diameter and low density
supergiant
meteorite
Hubble Space Telescope
perigee
12. The average distance between the Earth and the sun - or approximately 150000000 km
astronomical unit (AU)
rotation
phases of the moon
solstace
13. The increase in wavelength of light due to an object moving away from the observer
elliptical galaxy
red shift
apogee
planetesimal
14. A region of the solar system that is just beyond the orbit of neptune and that contains small bodies made mostly of ice
meteroid
Kuiper Belt
retrograde motion
quasar
15. A galaxy shaped like a flattened ball - containing only old stars
elliptical galaxy
apparent magnitude
asteroid
irregular galaxy
16. Explained movement of planets with retrograde motion
Claudius Ptolemy
Hubble Space Telescope
nova
equinox
17. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
galaxy
element
pulsar
Hubble Space Telescope
18. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
Galileo Galilei
pulsar
doppler effect
the big crunch
19. Point in orbit that is closest to the sun - planet moves faster
perhelion
asteroid
retrograde motion
local group
20. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
doppler effect
black hole
planetesimal
refracting telescope
21. Astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources
red dwarf
pulsar
spectroscopy
radio telescope
22. A star that falls into the main sequence category on the H-are diagram
nova
main-sequence star
supernova
Nicolaus Copernicus
23. The study of the universe
solar eclipse
astronomy
Galileo Galilei
Hubble Space Telescope
24. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
spectroscopy
refracting telescope
absorption spectrum
aphelion
25. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
lunar eclipse
the big crunch
ellipse
apparent magnitude
26. Varying amounts of the lighted moon as seen from earth
spectroscopy
earth's tilt
elliptical galaxy
phases of the moon
27. A region of the solar system that is just beyond the orbit of neptune and that contains small bodies made mostly of ice
planet
Kuiper Belt
Tycho Brahe
parallax
28. 23.5° - the reason we have seasons
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29. The elliptical motion of a body as it orbits another body in space
evolution
terrestrial planet
phases of the moon
blue shift
30. A large body in space that orbits a star and does not produce light of its own
planet
Hubble Space Telescope
perigee
nova
31. Spectrum of electromagnetic radiation emitted by a self-luminous source
Johannes Kepler
terrestrial planet
emission spectrum
background radiation
32. Light distance travels in one year (9.5 trillion km)
light-year
refracting telescope
aphelion
Tycho Brahe
33. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
geocentric
photon
Kuiper Belt
cepheid variable
34. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
cepheid variable
milky way galaxy
planetesimal
Tycho Brahe
35. The small - dense remains of a high-mass star after a supernova
meteroid
neutron star
radio telescope
earth's tilt
36. Point in orbit that is closest to the sun - planet moves faster
Johannes Kepler
reflecting telescope
retrograde motion
perhelion
37. A measure of the amount of light that a star actually emits
Nicolaus Copernicus
aphelion
absolute magnitude
lunar eclipse
38. A shift toward the red end of the spectrum in the observed spectral lines of stars or galaxies showing objects are moving away and that the universe is expanding
protostar
red shift
spiral galaxy
nebula
39. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
galaxy
doppler effect
light-year
coma
40. A shift toward the red end of the spectrum in the observed spectral lines of stars or galaxies showing objects are moving away and that the universe is expanding
Galileo Galilei
rotation
red shift
light-year
41. Polish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)
chromatic abberation
solstace
coma
Nicolaus Copernicus
42. Change in the apparent frequency of a wave as observer and source move toward or away from each other
doppler effect
irregular galaxy
evolution
galaxy cluster
43. Chunk of rock or dust in space
local group
meteroid
milky way galaxy
supernova
44. A telescope that uses a curved mirror to collect and focus light
Hertzsprung-Russel Diagram
absolute magnitude
reflecting telescope
cepheid variable
45. A system of galaxies containing from several to thousands of member galaxies
main-sequence star
supernova
galaxy cluster
red giant
46. The apparent change in position of an object when seen from different places
meteroid
supernova
parallax
supergiant
47. The brilliant explosion of a dying supergiant star
apogee
red shift
supernova
retrograde motion
48. Brahe's assistant - German astronomer who first discovered the three laws of planetary motion (1571-1630)
irregular galaxy
main-sequence star
Johannes Kepler
rotation
49. Any substance that cannot be broken down into simpler substances
meteorite
apogee
element
Hubble's law
50. A large cloud of dust and gas that can break apart into smaller pieces and form stars
milky way galaxy
red dwarf
nebula
phases of the moon