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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
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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. Spectrum of electromagnetic radiation emitted by a self-luminous source
white dwarf
Halley's Comet
phases of the moon
emission spectrum
2. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
white dwarf
blue shift
heliocentric
refracting telescope
3. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
phases of the moon
universal gravitation
Jovian planet
white dwarf
4. A large cloud of dust and gas that can break apart into smaller pieces and form stars
heliocentric
nebula
main-sequence star
nebulae
5. The brilliant explosion of a dying supergiant star
supernova
rotation
nebula
retrograde motion
6. 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
doppler effect
parallax
spiral galaxy
7. When the northern or southern most point on earth receives the most sun because the earth is tilted toward the sun
precession
doppler effect
spectroscopy
solstace
8. Chunk of rock or dust in space
irregular galaxy
Halley's Comet
meteroid
Sir Isaac Newton
9. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
electromagnetic spectrum
spiral galaxy
Galileo Galilei
continuous spectrum
10. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
accretion
big bang theory
Galileo Galilei
galaxy
11. The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
light-year
local group
irregular galaxy
absorption spectrum
12. Remnant of a star that is so dense that nothing - not even light - can escape its gravity field
the big crunch
black hole
light-year
Halley's Comet
13. Chunk of rock or dust in space
meteroid
refracting telescope
planetesimal
apogee
14. The farther away a galaxy is - the faster it is moving away
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15. An extremely bright star of very large diameter and low density
terrestrial planet
supergiant
nebula
Tycho Brahe
16. A model of the solar system in which Earth and the other planets revolve around the sun
heliocentric
nebulae
refracting telescope
astronomical unit (AU)
17. Spectrum of electromagnetic radiation emitted by a self-luminous source
planet
moon
main-sequence star
emission spectrum
18. The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
white dwarf
wavelength
nebula
absorption spectrum
19. Point in orbit that is closest to the sun - planet moves faster
Galileo Galilei
perhelion
local group
light-year
20. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
Johannes Kepler
electromagnetic spectrum
spectroscopy
photon
21. All of the frequencies or wavelengths of electromagnetic radiation
elliptical galaxy
electromagnetic spectrum
planetesimal
spiral galaxy
22. When the northern or southern most point on earth receives the most sun because the earth is tilted toward the sun
solstace
element
earth's tilt
element
23. A contracting cloud of gas and dust with enough mass to form a star
protostar
coma
perhelion
retrograde motion
24. 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
binary star
red giant
light-year
25. Explained movement of planets with retrograde motion
comet
constellation
Claudius Ptolemy
continuous spectrum
26. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
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27. 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
chromatic abberation
absolute magnitude
universal gravitation
accretion
28. An immense cloud of gas (mainly hydrogen) and dust in interstellar space
nebula
element
comet
astronomy
29. Radiation left over from the beginning of the universe
background radiation
electromagnetic spectrum
radio telescope
meteroid
30. The increase in wavelength of light due to an object moving away from the observer
blue shift
Oort Cloud
cepheid variable
red shift
31. A contracting cloud of gas and dust with enough mass to form a star
Galileo Galilei
parallax
protostar
solar eclipse
32. The most distant point in the orbit of the moon
earth's tilt
apogee
the big crunch
Oort Cloud
33. A spherical region of comets that surrounds the solar system
milky way galaxy
perhelion
nebula
Oort Cloud
34. Point of moon's orbit when it is nearest the earth
perigee
neutron star
planetesimal
neutron star
35. A star that expands and cools once it runs out of hydrogen fuel
absolute magnitude
Claudius Ptolemy
red giant
nova
36. The study of the spectra of stars by analyzing the spectral properties of the light they give off
light-year
refracting telescope
spectroscopy
Hertzsprung-Russel Diagram
37. The place in the orbit of a planet where the planet is farthest from the sun
meteor
aphelion
coma
red giant
38. The distance between crests of waves - such as those of the electromagnetic spectrum
terrestrial planet
wavelength
nebulae
parallax
39. 23.5° - the reason we have seasons
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40. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
doppler effect
moon
planetesimal
cepheid variable
41. A model of the solar system in which Earth and the other planets revolve around the sun
Oort Cloud
heliocentric
Jovian planet
protostar
42. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
rotation
protostar
comet
the big crunch
43. A space telescope and camera named for a famous astronaut (Edward Hubble) used to study space elements
Hertzsprung-Russel Diagram
black hole
meteor
Hubble Space Telescope
44. Massive clouds of dust and gases where stars are born
comet
aphelion
nebulae
local group
45. Galaxy with no particular shape - contains new & old stars
light-year
meteroid
phases of the moon
irregular galaxy
46. The brilliant explosion of a dying supergiant star
supernova
asteroid
supergiant
refracting telescope
47. The elliptical motion of a body as it orbits another body in space
earth's tilt
evolution
retrograde motion
galaxy cluster
48. One of the small asteroid-like bodies that formed the building blocks of the planets
local group
solar eclipse
planetesimal
phases of the moon
49. An immense cloud of gas (mainly hydrogen) and dust in interstellar space
nebula
nebulae
planetesimal
red giant
50. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
continuous spectrum
nova
galaxy
accretion
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