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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. The most distant point in the orbit of the moon
Hertzsprung-Russel Diagram
apogee
meteorite
equinox
2. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
earth's tilt
photon
refracting telescope
aphelion
3. 23.5° - the reason we have seasons
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4. Galaxy with no particular shape - contains new & old stars
red shift
protostar
Sir Isaac Newton
irregular galaxy
5. An extremely bright star of very large diameter and low density
quasar
asteroid
supergiant
spiral galaxy
6. The increase in wavelength of light due to an object moving away from the observer
galaxy
white dwarf
red shift
quasar
7. The two days of the year on which neither hemisphere is tilted toward or away from the sun
red shift
pulsar
equinox
heliocentric
8. A large body in space that orbits a star and does not produce light of its own
absorption spectrum
Oort Cloud
planet
meteor
9. A star that falls into the main sequence category on the H-are diagram
main-sequence star
absorption spectrum
perigee
galaxy
10. The rainbow effect when light is dispersed through lens
photon
Oort Cloud
photon
chromatic abberation
11. A large cloud of dust and gas that can break apart into smaller pieces and form stars
nebula
Tycho Brahe
doppler effect
retrograde motion
12. Massive clouds of dust and gases where stars are born
parallax
binary star
phases of the moon
nebulae
13. A spherical region of comets that surrounds the solar system
comet
red dwarf
solar eclipse
Oort Cloud
14. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
Claudius Ptolemy
nova
galaxy
apogee
15. English mathematician and physicist - discovered the law of universal gravitation
white dwarf
Johannes Kepler
Sir Isaac Newton
background radiation
16. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
milky way galaxy
photon
black hole
precession
17. The brightness of a star when viewed from Earth
Halley's Comet
apparent magnitude
equinox
elliptical galaxy
18. The decrease in wavelength of light due to an object moving away from the oberver
doppler effect
meteor
blue shift
neutron star
19. The spinning of Earth on its axis
astronomy
Hubble's law
Galileo Galilei
rotation
20. Explained movement of planets with retrograde motion
absorption spectrum
Claudius Ptolemy
elliptical galaxy
the big crunch
21. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
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22. The apparent change in position of an object when seen from different places
parallax
neutron star
asteroid
Kuiper Belt
23. A group of stars that form a pattern in the sky
constellation
absolute magnitude
Kuiper Belt
local group
24. When the northern or southern most point on earth receives the most sun because the earth is tilted toward the sun
solstace
light-year
geocentric
spiral galaxy
25. A measure of the amount of light that a star actually emits
phases of the moon
apparent magnitude
absolute magnitude
photon
26. A star that expands and cools once it runs out of hydrogen fuel
solstace
red giant
milky way galaxy
perhelion
27. A system of two stars that revolve around each other under their mutual gravitation
retrograde motion
Hubble's law
accretion
binary star
28. A very small star with low temperature - reddish in color
equinox
Johannes Kepler
quasar
red dwarf
29. An immense cloud of gas (mainly hydrogen) and dust in interstellar space
nebula
earth's tilt
perigee
astronomical unit (AU)
30. The elliptical motion of a body as it orbits another body in space
apogee
evolution
rotation
meteroid
31. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
Kuiper Belt
apogee
solar eclipse
reflecting telescope
32. Chunk of rock or dust in space
elliptical galaxy
spectroscopy
planet
meteroid
33. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
spiral galaxy
elliptical galaxy
solar eclipse
main-sequence star
34. The increase in wavelength of light due to an object moving away from the observer
red shift
meteroid
refracting telescope
neutron star
35. The motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
white dwarf
absolute magnitude
precession
accretion
36. A faint star of enormous density
white dwarf
electromagnetic spectrum
neutron star
galaxy cluster
37. Any natural satellite of a planet
moon
Sir Isaac Newton
light-year
milky way galaxy
38. The brightness of a star when viewed from Earth
big bang theory
ellipse
apparent magnitude
solar eclipse
39. A system of galaxies containing from several to thousands of member galaxies
galaxy cluster
doppler effect
Nicolaus Copernicus
apogee
40. 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
universal gravitation
blue shift
spiral galaxy
terrestrial planet
41. One of the small asteroid-like bodies that formed the building blocks of the planets
planetesimal
galaxy
asteroid
light-year
42. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
astronomical unit (AU)
cepheid variable
accretion
Sir Isaac Newton
43. The motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
precession
red giant
Tycho Brahe
big bang theory
44. The spinning of Earth on its axis
constellation
heliocentric
photon
rotation
45. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
absorption spectrum
black hole
meteor
doppler effect
46. A galaxy shaped like a flattened ball - containing only old stars
geocentric
rotation
elliptical galaxy
evolution
47. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
nova
Hubble Space Telescope
absorption spectrum
refracting telescope
48. A large body in space that orbits a star and does not produce light of its own
galaxy
planet
emission spectrum
red dwarf
49. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
geocentric
red shift
galaxy
cepheid variable
50. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
reflecting telescope
nebulae
solar eclipse
Jovian planet
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