SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 apparent change in position of an object when seen from different places
solar eclipse
parallax
absolute magnitude
white dwarf
2. The brilliant explosion of a dying supergiant star
binary star
perhelion
photon
supernova
3. A system of galaxies containing from several to thousands of member galaxies
absorption spectrum
white dwarf
precession
galaxy cluster
4. Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
asteroid
chromatic abberation
nova
ellipse
5. The spinning of Earth on its axis
rotation
Kuiper Belt
protostar
solstace
6. Light distance travels in one year (9.5 trillion km)
light-year
astronomical unit (AU)
phases of the moon
constellation
7. A contracting cloud of gas and dust with enough mass to form a star
Kuiper Belt
doppler effect
protostar
moon
8. An enormously bright - distant galaxy with a giant black hole at its center
quasar
planetesimal
precession
white dwarf
9. The luminous cloud of particles surrounding the frozen nucleus of a comet
coma
Halley's Comet
rotation
Tycho Brahe
10. A system of two stars that revolve around each other under their mutual gravitation
Oort Cloud
binary star
Claudius Ptolemy
photon
11. Radiation left over from the beginning of the universe
spectroscopy
Claudius Ptolemy
background radiation
white dwarf
12. A model of the universe based on the assumption that the sun - moon - and planets all orbit Earth
main-sequence star
light-year
geocentric
galaxy
13. The small - dense remains of a high-mass star after a supernova
blue shift
ellipse
evolution
neutron star
14. A large body in space that orbits a star and does not produce light of its own
precession
planet
blue shift
irregular galaxy
15. Varying amounts of the lighted moon as seen from earth
nebula
phases of the moon
moon
meteroid
16. Light distance travels in one year (9.5 trillion km)
meteor
light-year
constellation
milky way galaxy
17. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
solar eclipse
heliocentric
galaxy
protostar
18. Polish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)
parallax
Galileo Galilei
emission spectrum
Nicolaus Copernicus
19. All of the frequencies or wavelengths of electromagnetic radiation
Galileo Galilei
blue shift
Halley's Comet
electromagnetic spectrum
20. The apparent westward motion of the planets with respect to the stars
binary star
nebula
light-year
retrograde motion
21. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
black hole
chromatic abberation
absorption spectrum
main-sequence star
22. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
Jovian planet
Nicolaus Copernicus
coma
emission spectrum
23. The study of the spectra of stars by analyzing the spectral properties of the light they give off
spiral galaxy
spectroscopy
blue shift
irregular galaxy
24. The distance between crests of waves - such as those of the electromagnetic spectrum
coma
wavelength
constellation
lunar eclipse
25. A faint star of enormous density
meteorite
universal gravitation
photon
white dwarf
26. 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
Galileo Galilei
blue shift
universal gravitation
nebula
27. The rainbow effect when light is dispersed through lens
pulsar
reflecting telescope
Sir Isaac Newton
chromatic abberation
28. The study of the universe
big bang theory
red dwarf
astronomy
apogee
29. The two days of the year on which neither hemisphere is tilted toward or away from the sun
equinox
local group
protostar
planetesimal
30. A star that expands and cools once it runs out of hydrogen fuel
Galileo Galilei
red giant
white dwarf
Hubble's law
31. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
the big crunch
photon
binary star
blue shift
32. A model of the solar system in which Earth and the other planets revolve around the sun
meteor
accretion
heliocentric
Nicolaus Copernicus
33. A star that ejects some of its material in the form of a cloud and become more luminous in the process
accretion
element
nova
comet
34. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
lunar eclipse
emission spectrum
electromagnetic spectrum
retrograde motion
35. A telescope that uses a curved mirror to collect and focus light
spectroscopy
moon
red giant
reflecting telescope
36. The apparent change in position of an object when seen from different places
lunar eclipse
supergiant
absolute magnitude
parallax
37. The brightness of a star when viewed from Earth
elliptical galaxy
retrograde motion
protostar
apparent magnitude
38. Massive clouds of dust and gases where stars are born
quasar
aphelion
nebulae
supernova
39. The motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
spiral galaxy
binary star
precession
neutron star
40. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
41. A group of about 30 galaxies that includes the Milky Way
local group
Claudius Ptolemy
Johannes Kepler
big bang theory
42. The formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
meteor
reflecting telescope
Claudius Ptolemy
accretion
43. An extremely bright star of very large diameter and low density
absorption spectrum
perhelion
milky way galaxy
supergiant
44. The most distant point in the orbit of the moon
apogee
elliptical galaxy
Kuiper Belt
red shift
45. Influenced by Copernicus; Built observatory and collected data on the locations of stars and planets for over 20 years
Hertzsprung-Russel Diagram
photon
milky way galaxy
Tycho Brahe
46. 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
big bang theory
main-sequence star
Oort Cloud
solar eclipse
47. A group of stars that form a pattern in the sky
Jovian planet
constellation
phases of the moon
element
48. The place in the orbit of a planet where the planet is farthest from the sun
evolution
aphelion
red dwarf
Kuiper Belt
49. Brahe's assistant - German astronomer who first discovered the three laws of planetary motion (1571-1630)
heliocentric
solar eclipse
red giant
Johannes Kepler
50. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
radio telescope
Oort Cloud
meteor
Hubble's law