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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 formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
constellation
meteorite
parallax
accretion
2. A spherical region of comets that surrounds the solar system
galaxy
Oort Cloud
blue shift
precession
3. The rainbow effect when light is dispersed through lens
chromatic abberation
rotation
geocentric
galaxy
4. A large cloud of dust and gas that can break apart into smaller pieces and form stars
absorption spectrum
electromagnetic spectrum
nebula
supergiant
5. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
terrestrial planet
galaxy
continuous spectrum
emission spectrum
6. 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
reflecting telescope
astronomical unit (AU)
moon
7. The name of our galaxy - a spiral galaxy that contains about 400 billion stars
apparent magnitude
background radiation
nebula
milky way galaxy
8. The brilliant explosion of a dying supergiant star
galaxy
black hole
red giant
supernova
9. An enormously bright - distant galaxy with a giant black hole at its center
parallax
Jovian planet
quasar
wavelength
10. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
constellation
Oort Cloud
refracting telescope
earth's tilt
11. A model of the solar system in which Earth and the other planets revolve around the sun
heliocentric
aphelion
black hole
Oort Cloud
12. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
moon
asteroid
cepheid variable
apogee
13. The average distance between the Earth and the sun - or approximately 150000000 km
astronomical unit (AU)
reflecting telescope
doppler effect
neutron star
14. Point of moon's orbit when it is nearest the earth
aphelion
perigee
red dwarf
light-year
15. The two days of the year on which neither hemisphere is tilted toward or away from the sun
earth's tilt
milky way galaxy
big bang theory
equinox
16. A contracting cloud of gas and dust with enough mass to form a star
wavelength
nebulae
solstace
protostar
17. 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
cepheid variable
binary star
element
universal gravitation
18. Explained movement of planets with retrograde motion
Claudius Ptolemy
Kuiper Belt
Jovian planet
background radiation
19. Varying amounts of the lighted moon as seen from earth
solar eclipse
meteor
phases of the moon
Kuiper Belt
20. The small - dense remains of a high-mass star after a supernova
heliocentric
quasar
neutron star
radio telescope
21. An extremely bright star of very large diameter and low density
heliocentric
Kuiper Belt
protostar
supergiant
22. A rapidly spinning neutron star that produces radio waves
pulsar
supernova
terrestrial planet
galaxy
23. The spinning of Earth on its axis
rotation
precession
milky way galaxy
Hubble's law
24. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
apparent magnitude
white dwarf
Oort Cloud
meteor
25. The apparent change in position of an object when seen from different places
rotation
terrestrial planet
parallax
phases of the moon
26. Planet with a solid - rocky crust; more dense; Inner planet. Mercury - Venus - Earth - Mars
geocentric
terrestrial planet
moon
red shift
27. Large group of stars - dust - and gas held together by gravity; can be elliptical - spiral - or irregular
universal gravitation
geocentric
moon
galaxy
28. A model of the solar system in which Earth and the other planets revolve around the sun
radio telescope
emission spectrum
heliocentric
meteorite
29. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
cepheid variable
Hertzsprung-Russel Diagram
evolution
protostar
30. The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
reflecting telescope
universal gravitation
absorption spectrum
precession
31. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
chromatic abberation
element
supernova
solar eclipse
32. Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
supergiant
asteroid
white dwarf
nebulae
33. An extremely bright star of very large diameter and low density
Jovian planet
spiral galaxy
supergiant
nebula
34. The brightness of a star when viewed from Earth
apparent magnitude
continuous spectrum
phases of the moon
electromagnetic spectrum
35. An elongated circle - or oval shape - the shape of the planets orbit
Hubble's law
red giant
red dwarf
ellipse
36. Spectrum of electromagnetic radiation emitted by a self-luminous source
emission spectrum
quasar
earth's tilt
big bang theory
37. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
refracting telescope
white dwarf
solar eclipse
comet
38. A group of stars that form a pattern in the sky
spiral galaxy
the big crunch
constellation
asteroid
39. The place in the orbit of a planet where the planet is farthest from the sun
solstace
Kuiper Belt
aphelion
equinox
40. An elongated circle - or oval shape - the shape of the planets orbit
ellipse
evolution
milky way galaxy
solstace
41. A region of the solar system that is just beyond the orbit of neptune and that contains small bodies made mostly of ice
equinox
Kuiper Belt
white dwarf
Hubble Space Telescope
42. A very small star with low temperature - reddish in color
retrograde motion
photon
retrograde motion
red dwarf
43. One of the small asteroid-like bodies that formed the building blocks of the planets
coma
galaxy cluster
planetesimal
Johannes Kepler
44. A region of the solar system that is just beyond the orbit of neptune and that contains small bodies made mostly of ice
Kuiper Belt
moon
Sir Isaac Newton
neutron star
45. A star that expands and cools once it runs out of hydrogen fuel
red giant
astronomical unit (AU)
binary star
coma
46. A contracting cloud of gas and dust with enough mass to form a star
terrestrial planet
binary star
protostar
photon
47. The study of the spectra of stars by analyzing the spectral properties of the light they give off
Nicolaus Copernicus
solar eclipse
spectroscopy
apogee
48. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
chromatic abberation
Jovian planet
terrestrial planet
irregular galaxy
49. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
Hertzsprung-Russel Diagram
main-sequence star
solar eclipse
astronomical unit (AU)
50. The decrease in wavelength of light due to an object moving away from the oberver
perigee
blue shift
big bang theory
Nicolaus Copernicus