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 rainbow effect when light is dispersed through lens
planetesimal
heliocentric
chromatic abberation
precession
2. The place in the orbit of a planet where the planet is farthest from the sun
Claudius Ptolemy
aphelion
terrestrial planet
Tycho Brahe
3. A spectrum of light in which there are no gaps - so that each region blends directly into the next
continuous spectrum
Hertzsprung-Russel Diagram
retrograde motion
rotation
4. All of the frequencies or wavelengths of electromagnetic radiation
electromagnetic spectrum
refracting telescope
photon
photon
5. 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
comet
spiral galaxy
universal gravitation
milky way galaxy
6. One of the small asteroid-like bodies that formed the building blocks of the planets
doppler effect
planetesimal
nebulae
universal gravitation
7. 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
galaxy cluster
doppler effect
red shift
coma
8. Spectrum of electromagnetic radiation emitted by a self-luminous source
emission spectrum
cepheid variable
geocentric
white dwarf
9. The brilliant explosion of a dying supergiant star
white dwarf
main-sequence star
Claudius Ptolemy
supernova
10. A spherical region of comets that surrounds the solar system
electromagnetic spectrum
Oort Cloud
phases of the moon
aphelion
11. Light distance travels in one year (9.5 trillion km)
absolute magnitude
red shift
light-year
the big crunch
12. The brightness of a star when viewed from Earth
Hertzsprung-Russel Diagram
apparent magnitude
coma
photon
13. 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
solar eclipse
Jovian planet
phases of the moon
14. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
galaxy
meteor
photon
astronomical unit (AU)
15. A graph relating the temperature and brightness of stars
parallax
nebulae
Hertzsprung-Russel Diagram
geocentric
16. The rainbow effect when light is dispersed through lens
chromatic abberation
Sir Isaac Newton
the big crunch
asteroid
17. English mathematician and physicist - discovered the law of universal gravitation
elliptical galaxy
lunar eclipse
chromatic abberation
Sir Isaac Newton
18. A faint star of enormous density
red dwarf
quasar
perhelion
white dwarf
19. The distance between crests of waves - such as those of the electromagnetic spectrum
apparent magnitude
supernova
wavelength
Kuiper Belt
20. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
neutron star
planet
white dwarf
black hole
21. The elliptical motion of a body as it orbits another body in space
Tycho Brahe
blue shift
evolution
moon
22. A star that expands and cools once it runs out of hydrogen fuel
red giant
Kuiper Belt
Hertzsprung-Russel Diagram
white dwarf
23. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
chromatic abberation
lunar eclipse
black hole
terrestrial planet
24. An immense cloud of gas (mainly hydrogen) and dust in interstellar space
refracting telescope
Johannes Kepler
nebulae
nebula
25. A spherical region of comets that surrounds the solar system
meteorite
absolute magnitude
Oort Cloud
ellipse
26. 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.
nova
rotation
Galileo Galilei
Tycho Brahe
27. An enormously bright - distant galaxy with a giant black hole at its center
neutron star
astronomy
reflecting telescope
quasar
28. Chunk of rock or dust in space
meteroid
equinox
chromatic abberation
apogee
29. Massive clouds of dust and gases where stars are born
phases of the moon
nebulae
chromatic abberation
moon
30. The two days of the year on which neither hemisphere is tilted toward or away from the sun
background radiation
rotation
equinox
perhelion
31. Influenced by Copernicus; Built observatory and collected data on the locations of stars and planets for over 20 years
Tycho Brahe
chromatic abberation
absorption spectrum
absolute magnitude
32. A measure of the amount of light that a star actually emits
phases of the moon
absolute magnitude
neutron star
Halley's Comet
33. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
chromatic abberation
local group
supernova
spiral galaxy
34. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
supergiant
Halley's Comet
local group
cepheid variable
35. The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
aphelion
nebula
absorption spectrum
quasar
36. The study of the universe
Claudius Ptolemy
Hubble Space Telescope
astronomy
perigee
37. A rapidly spinning neutron star that produces radio waves
pulsar
local group
irregular galaxy
Halley's Comet
38. A system of two stars that revolve around each other under their mutual gravitation
binary star
spiral galaxy
Johannes Kepler
irregular galaxy
39. A system of galaxies containing from several to thousands of member galaxies
galaxy cluster
supernova
apparent magnitude
radio telescope
40. The apparent westward motion of the planets with respect to the stars
planet
red giant
retrograde motion
parallax
41. 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
big bang theory
astronomy
black hole
universal gravitation
42. A star that expands and cools once it runs out of hydrogen fuel
electromagnetic spectrum
supergiant
red giant
nova
43. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
the big crunch
planet
solstace
binary star
44. A model of the solar system in which Earth and the other planets revolve around the sun
heliocentric
Kuiper Belt
supergiant
planetesimal
45. A group of about 30 galaxies that includes the Milky Way
spiral galaxy
local group
element
aphelion
46. The luminous cloud of particles surrounding the frozen nucleus of a comet
protostar
element
coma
chromatic abberation
47. The spinning of Earth on its axis
evolution
blue shift
supergiant
rotation
48. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
coma
chromatic abberation
asteroid
photon
49. A telescope that uses a curved mirror to collect and focus light
earth's tilt
absolute magnitude
wavelength
reflecting telescope
50. Massive clouds of dust and gases where stars are born
solstace
Halley's Comet
nebulae
elliptical galaxy