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Test your basic knowledge |
Astronomy Basics
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Study First
Subject
:
science
Instructions:
Answer 50 questions in 15 minutes.
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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. Explained movement of planets with retrograde motion
irregular galaxy
perhelion
Halley's Comet
Claudius Ptolemy
2. Stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
meteorite
the big crunch
meteroid
absolute magnitude
3. A group of stars that form a pattern in the sky
perigee
precession
comet
constellation
4. The decrease in wavelength of light due to an object moving away from the oberver
heliocentric
blue shift
meteroid
galaxy cluster
5. A model of the solar system in which Earth and the other planets revolve around the sun
accretion
universal gravitation
moon
heliocentric
6. The farther away a galaxy is - the faster it is moving away
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7. An immense cloud of gas (mainly hydrogen) and dust in interstellar space
chromatic abberation
nebula
doppler effect
universal gravitation
8. A rapidly spinning neutron star that produces radio waves
spectroscopy
solstace
the big crunch
pulsar
9. A very small star with low temperature - reddish in color
milky way galaxy
radio telescope
red dwarf
Galileo Galilei
10. A measure of the amount of light that a star actually emits
absolute magnitude
red shift
galaxy
planet
11. A system of two stars that revolve around each other under their mutual gravitation
supergiant
universal gravitation
Claudius Ptolemy
binary star
12. Massive clouds of dust and gases where stars are born
nebulae
equinox
heliocentric
wavelength
13. The study of the spectra of stars by analyzing the spectral properties of the light they give off
blue shift
spectroscopy
solstace
planet
14. 23.5° - the reason we have seasons
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15. Astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources
Sir Isaac Newton
radio telescope
aphelion
main-sequence star
16. Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
doppler effect
big bang theory
asteroid
Claudius Ptolemy
17. All of the frequencies or wavelengths of electromagnetic radiation
universal gravitation
electromagnetic spectrum
irregular galaxy
retrograde motion
18. A spherical region of comets that surrounds the solar system
emission spectrum
Oort Cloud
Hertzsprung-Russel Diagram
white dwarf
19. The apparent westward motion of the planets with respect to the stars
reflecting telescope
retrograde motion
supergiant
supernova
20. English mathematician and physicist - discovered the law of universal gravitation
nebula
Kuiper Belt
Sir Isaac Newton
supergiant
21. Point in orbit that is closest to the sun - planet moves faster
absorption spectrum
accretion
protostar
perhelion
22. A star that falls into the main sequence category on the H-are diagram
Hertzsprung-Russel Diagram
lunar eclipse
phases of the moon
main-sequence star
23. Point in orbit that is closest to the sun - planet moves faster
aphelion
black hole
perhelion
big bang theory
24. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
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25. The small - dense remains of a high-mass star after a supernova
blue shift
coma
galaxy
neutron star
26. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
cepheid variable
the big crunch
chromatic abberation
galaxy
27. All of the frequencies or wavelengths of electromagnetic radiation
emission spectrum
electromagnetic spectrum
the big crunch
earth's tilt
28. A group of stars that form a pattern in the sky
cepheid variable
wavelength
Kuiper Belt
constellation
29. 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
red shift
the big crunch
astronomy
big bang theory
30. Spectrum of electromagnetic radiation emitted by a self-luminous source
wavelength
emission spectrum
the big crunch
terrestrial planet
31. One of the small asteroid-like bodies that formed the building blocks of the planets
Johannes Kepler
solstace
planetesimal
geocentric
32. Spectrum of electromagnetic radiation emitted by a self-luminous source
universal gravitation
emission spectrum
background radiation
apparent magnitude
33. A very small star with low temperature - reddish in color
red dwarf
radio telescope
doppler effect
spiral galaxy
34. Radiation left over from the beginning of the universe
Sir Isaac Newton
background radiation
light-year
coma
35. The apparent change in position of an object when seen from different places
parallax
terrestrial planet
precession
rotation
36. 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
red shift
apogee
nebula
lunar eclipse
37. The theory that the universe originated 20 billion years ago from the cataclysmic explosion of a small mass of matter at extremely high density and temperature
red shift
planetesimal
big bang theory
black hole
38. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
pulsar
quasar
refracting telescope
Jovian planet
39. A telescope that uses a curved mirror to collect and focus light
wavelength
electromagnetic spectrum
electromagnetic spectrum
reflecting telescope
40. The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
absorption spectrum
chromatic abberation
Tycho Brahe
constellation
41. A spherical region of comets that surrounds the solar system
perigee
electromagnetic spectrum
element
Oort Cloud
42. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
photon
Oort Cloud
Sir Isaac Newton
light-year
43. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
red shift
the big crunch
asteroid
Hertzsprung-Russel Diagram
44. Every object in the universe was attracted to every other object w/ a force that is directly proportional to the masses and proportional to distance between them
nebula
black hole
universal gravitation
perhelion
45. A large body in space that orbits a star and does not produce light of its own
continuous spectrum
planet
lunar eclipse
light-year
46. The name of our galaxy - a spiral galaxy that contains about 400 billion stars
milky way galaxy
accretion
earth's tilt
meteorite
47. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
nova
heliocentric
refracting telescope
terrestrial planet
48. The elliptical motion of a body as it orbits another body in space
moon
evolution
wavelength
nova
49. The distance between crests of waves - such as those of the electromagnetic spectrum
refracting telescope
meteorite
wavelength
element
50. A faint star of enormous density
background radiation
white dwarf
moon
retrograde motion
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