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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. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
absolute magnitude
milky way galaxy
red shift
meteor
2. The place in the orbit of a planet where the planet is farthest from the sun
Jovian planet
aphelion
quasar
spectroscopy
3. An elongated circle - or oval shape - the shape of the planets orbit
local group
astronomical unit (AU)
ellipse
galaxy cluster
4. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
perigee
evolution
the big crunch
light-year
5. The formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
emission spectrum
lunar eclipse
phases of the moon
accretion
6. English mathematician and physicist - discovered the law of universal gravitation
Sir Isaac Newton
meteroid
Claudius Ptolemy
radio telescope
7. Influenced by Copernicus; Built observatory and collected data on the locations of stars and planets for over 20 years
Tycho Brahe
equinox
geocentric
perhelion
8. The rainbow effect when light is dispersed through lens
the big crunch
phases of the moon
chromatic abberation
equinox
9. A spherical region of comets that surrounds the solar system
lunar eclipse
Oort Cloud
background radiation
supernova
10. A star that falls into the main sequence category on the H-are diagram
main-sequence star
doppler effect
wavelength
spiral galaxy
11. The farther away a galaxy is - the faster it is moving away
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12. Any substance that cannot be broken down into simpler substances
quasar
element
cepheid variable
Hubble Space Telescope
13. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
geocentric
meteroid
solar eclipse
Oort Cloud
14. Massive clouds of dust and gases where stars are born
absorption spectrum
equinox
apogee
nebulae
15. A measure of the amount of light that a star actually emits
absolute magnitude
Johannes Kepler
nebula
supernova
16. The most distant point in the orbit of the moon
Johannes Kepler
apogee
blue shift
evolution
17. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
pulsar
cepheid variable
element
big bang theory
18. 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
Galileo Galilei
Kuiper Belt
black hole
19. The motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
constellation
precession
lunar eclipse
aphelion
20. Stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
pulsar
reflecting telescope
chromatic abberation
meteorite
21. The average distance between the Earth and the sun - or approximately 150000000 km
milky way galaxy
perhelion
Hubble's law
astronomical unit (AU)
22. 23.5° - the reason we have seasons
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23. The apparent westward motion of the planets with respect to the stars
retrograde motion
asteroid
absolute magnitude
solstace
24. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
galaxy
background radiation
Sir Isaac Newton
supergiant
25. A rapidly spinning neutron star that produces radio waves
galaxy cluster
earth's tilt
pulsar
white dwarf
26. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
coma
black hole
Jovian planet
electromagnetic spectrum
27. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
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28. The brilliant explosion of a dying supergiant star
blue shift
parallax
moon
supernova
29. The brightness of a star when viewed from Earth
the big crunch
parallax
nebulae
apparent magnitude
30. An enormously bright - distant galaxy with a giant black hole at its center
galaxy
galaxy cluster
quasar
spiral galaxy
31. Massive clouds of dust and gases where stars are born
perigee
black hole
white dwarf
nebulae
32. The name of our galaxy - a spiral galaxy that contains about 400 billion stars
milky way galaxy
Sir Isaac Newton
Halley's Comet
solstace
33. A space telescope and camera named for a famous astronaut (Edward Hubble) used to study space elements
binary star
Hubble Space Telescope
accretion
electromagnetic spectrum
34. A star that expands and cools once it runs out of hydrogen fuel
chromatic abberation
red giant
protostar
evolution
35. Spectrum of electromagnetic radiation emitted by a self-luminous source
emission spectrum
heliocentric
Kuiper Belt
continuous spectrum
36. The small - dense remains of a high-mass star after a supernova
red shift
black hole
neutron star
Nicolaus Copernicus
37. All of the frequencies or wavelengths of electromagnetic radiation
binary star
neutron star
planetesimal
electromagnetic spectrum
38. Radiation left over from the beginning of the universe
nebula
aphelion
ellipse
background radiation
39. The name of our galaxy - a spiral galaxy that contains about 400 billion stars
spiral galaxy
asteroid
galaxy
milky way galaxy
40. A system of two stars that revolve around each other under their mutual gravitation
neutron star
binary star
solstace
evolution
41. A model of the solar system in which Earth and the other planets revolve around the sun
irregular galaxy
heliocentric
aphelion
Claudius Ptolemy
42. A galaxy shaped like a flattened ball - containing only old stars
background radiation
continuous spectrum
Nicolaus Copernicus
elliptical galaxy
43. The decrease in wavelength of light due to an object moving away from the oberver
blue shift
red shift
irregular galaxy
nova
44. The distance between crests of waves - such as those of the electromagnetic spectrum
chromatic abberation
Kuiper Belt
wavelength
doppler effect
45. The brightness of a star when viewed from Earth
asteroid
galaxy cluster
meteorite
apparent magnitude
46. A model of the solar system in which Earth and the other planets revolve around the sun
Kuiper Belt
heliocentric
cepheid variable
perhelion
47. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
the big crunch
astronomical unit (AU)
Halley's Comet
Kuiper Belt
48. When the northern or southern most point on earth receives the most sun because the earth is tilted toward the sun
solstace
Oort Cloud
accretion
evolution
49. A group of stars that form a pattern in the sky
radio telescope
blue shift
constellation
meteor
50. Any natural satellite of a planet
milky way galaxy
moon
element
coma