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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. The decrease in wavelength of light due to an object moving away from the oberver
blue shift
refracting telescope
universal gravitation
nebula
2. Point of moon's orbit when it is nearest the earth
Oort Cloud
perigee
Halley's Comet
supergiant
3. The place in the orbit of a planet where the planet is farthest from the sun
elliptical galaxy
Halley's Comet
aphelion
electromagnetic spectrum
4. Spectrum of electromagnetic radiation emitted by a self-luminous source
emission spectrum
blue shift
reflecting telescope
evolution
5. The apparent westward motion of the planets with respect to the stars
apparent magnitude
precession
retrograde motion
planetesimal
6. The apparent westward motion of the planets with respect to the stars
heliocentric
retrograde motion
main-sequence star
red giant
7. When the northern or southern most point on earth receives the most sun because the earth is tilted toward the sun
solstace
Jovian planet
quasar
reflecting telescope
8. Stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
white dwarf
meteorite
big bang theory
photon
9. Brahe's assistant - German astronomer who first discovered the three laws of planetary motion (1571-1630)
photon
red dwarf
universal gravitation
Johannes Kepler
10. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
lunar eclipse
heliocentric
accretion
radio telescope
11. The increase in wavelength of light due to an object moving away from the observer
binary star
red shift
neutron star
blue shift
12. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
lunar eclipse
black hole
element
chromatic abberation
13. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
asteroid
supergiant
photon
milky way galaxy
14. The rainbow effect when light is dispersed through lens
parallax
solar eclipse
planetesimal
chromatic abberation
15. The luminous cloud of particles surrounding the frozen nucleus of a comet
comet
coma
Johannes Kepler
apogee
16. A group of about 30 galaxies that includes the Milky Way
Halley's Comet
phases of the moon
protostar
local group
17. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
coma
spiral galaxy
absolute magnitude
radio telescope
18. Stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
aphelion
nebula
meteorite
irregular galaxy
19. The two days of the year on which neither hemisphere is tilted toward or away from the sun
phases of the moon
irregular galaxy
absolute magnitude
equinox
20. Italian astronomer - mathematician - and physicist. His telescopes proved the sun is the center of the solar system and that the planets/moon move. He was persecuted for supporting Copernicus' ideas.
Galileo Galilei
terrestrial planet
elliptical galaxy
Nicolaus Copernicus
21. Change in the apparent frequency of a wave as observer and source move toward or away from each other
doppler effect
apparent magnitude
meteorite
background radiation
22. Influenced by Copernicus; Built observatory and collected data on the locations of stars and planets for over 20 years
meteorite
Johannes Kepler
quasar
Tycho Brahe
23. A spherical region of comets that surrounds the solar system
blue shift
Oort Cloud
astronomical unit (AU)
elliptical galaxy
24. 23.5° - the reason we have seasons
25. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
absolute magnitude
accretion
the big crunch
doppler effect
26. Space object made of dust and rock particles mixed with frozen water - methane - and ammonia that forms a bright coma as it approaches the Sun
white dwarf
Halley's Comet
comet
nebula
27. A star that falls into the main sequence category on the H-are diagram
reflecting telescope
comet
main-sequence star
chromatic abberation
28. The small - dense remains of a high-mass star after a supernova
comet
Claudius Ptolemy
galaxy cluster
neutron star
29. The motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
electromagnetic spectrum
precession
red dwarf
galaxy
30. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
local group
lunar eclipse
background radiation
red dwarf
31. A large body in space that orbits a star and does not produce light of its own
photon
planet
moon
absolute magnitude
32. Point of moon's orbit when it is nearest the earth
solstace
perigee
constellation
background radiation
33. 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
electromagnetic spectrum
nebula
quasar
34. A group of stars that form a pattern in the sky
heliocentric
aphelion
Jovian planet
constellation
35. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
galaxy
cepheid variable
red shift
moon
36. A graph relating the temperature and brightness of stars
Hubble Space Telescope
apogee
Hertzsprung-Russel Diagram
binary star
37. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
solar eclipse
chromatic abberation
nova
Hubble Space Telescope
38. A star that expands and cools once it runs out of hydrogen fuel
perigee
red giant
Sir Isaac Newton
apogee
39. The brilliant explosion of a dying supergiant star
evolution
ellipse
red giant
supernova
40. A rapidly spinning neutron star that produces radio waves
absorption spectrum
evolution
pulsar
meteorite
41. A rapidly spinning neutron star that produces radio waves
moon
astronomical unit (AU)
pulsar
Nicolaus Copernicus
42. The two days of the year on which neither hemisphere is tilted toward or away from the sun
equinox
constellation
comet
Johannes Kepler
43. A star that expands and cools once it runs out of hydrogen fuel
red giant
Kuiper Belt
astronomical unit (AU)
local group
44. The increase in wavelength of light due to an object moving away from the observer
red shift
photon
local group
galaxy cluster
45. Italian astronomer - mathematician - and physicist. His telescopes proved the sun is the center of the solar system and that the planets/moon move. He was persecuted for supporting Copernicus' ideas.
Jovian planet
Galileo Galilei
irregular galaxy
retrograde motion
46. The decrease in wavelength of light due to an object moving away from the oberver
blue shift
neutron star
precession
spiral galaxy
47. 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
pulsar
universal gravitation
milky way galaxy
meteorite
48. Galaxy with no particular shape - contains new & old stars
irregular galaxy
Nicolaus Copernicus
refracting telescope
meteorite
49. All of the frequencies or wavelengths of electromagnetic radiation
astronomy
geocentric
planet
electromagnetic spectrum
50. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
Kuiper Belt
pulsar
main-sequence star
spiral galaxy