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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. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
supernova
big bang theory
solar eclipse
supernova
2. The distance between crests of waves - such as those of the electromagnetic spectrum
nebulae
nebula
wavelength
parallax
3. The most distant point in the orbit of the moon
white dwarf
apogee
supergiant
background radiation
4. The motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
black hole
precession
Nicolaus Copernicus
red giant
5. The apparent change in position of an object when seen from different places
parallax
apogee
background radiation
precession
6. The farther away a galaxy is - the faster it is moving away
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7. Planet with a solid - rocky crust; more dense; Inner planet. Mercury - Venus - Earth - Mars
coma
terrestrial planet
absolute magnitude
neutron star
8. A spectrum of light in which there are no gaps - so that each region blends directly into the next
spiral galaxy
local group
astronomy
continuous spectrum
9. English mathematician and physicist - discovered the law of universal gravitation
red shift
milky way galaxy
local group
Sir Isaac Newton
10. Chunk of rock or dust in space
Jovian planet
lunar eclipse
rotation
meteroid
11. 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
terrestrial planet
spectroscopy
cepheid variable
universal gravitation
12. A space telescope and camera named for a famous astronaut (Edward Hubble) used to study space elements
Hubble Space Telescope
pulsar
red shift
electromagnetic spectrum
13. An enormously bright - distant galaxy with a giant black hole at its center
quasar
elliptical galaxy
solstace
spiral galaxy
14. A galaxy shaped like a flattened ball - containing only old stars
earth's tilt
elliptical galaxy
asteroid
Johannes Kepler
15. Varying amounts of the lighted moon as seen from earth
element
nebula
Nicolaus Copernicus
phases of the moon
16. Massive clouds of dust and gases where stars are born
background radiation
precession
nebulae
Oort Cloud
17. A group of about 30 galaxies that includes the Milky Way
the big crunch
Claudius Ptolemy
local group
parallax
18. The apparent westward motion of the planets with respect to the stars
Sir Isaac Newton
apogee
supernova
retrograde motion
19. An extremely bright star of very large diameter and low density
chromatic abberation
planetesimal
supergiant
astronomical unit (AU)
20. 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
comet
white dwarf
irregular galaxy
21. The brightness of a star when viewed from Earth
binary star
astronomical unit (AU)
lunar eclipse
apparent magnitude
22. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
binary star
photon
meteor
irregular galaxy
23. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
supernova
spiral galaxy
red shift
terrestrial planet
24. An elongated circle - or oval shape - the shape of the planets orbit
ellipse
refracting telescope
supernova
continuous spectrum
25. A faint star of enormous density
white dwarf
equinox
red shift
apogee
26. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
red shift
Nicolaus Copernicus
Kuiper Belt
Jovian planet
27. One of the small asteroid-like bodies that formed the building blocks of the planets
planetesimal
nebulae
galaxy
electromagnetic spectrum
28. Planet with a solid - rocky crust; more dense; Inner planet. Mercury - Venus - Earth - Mars
terrestrial planet
light-year
doppler effect
perigee
29. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
galaxy
local group
spiral galaxy
Tycho Brahe
30. Galaxy with no particular shape - contains new & old stars
white dwarf
irregular galaxy
constellation
evolution
31. A spherical region of comets that surrounds the solar system
Halley's Comet
nebula
nebula
Oort Cloud
32. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
meteor
planet
radio telescope
irregular galaxy
33. A star that expands and cools once it runs out of hydrogen fuel
red giant
earth's tilt
galaxy
doppler effect
34. The formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
earth's tilt
perhelion
accretion
red giant
35. An enormously bright - distant galaxy with a giant black hole at its center
planet
quasar
the big crunch
nova
36. A system of galaxies containing from several to thousands of member galaxies
nebula
doppler effect
galaxy cluster
astronomy
37. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
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38. Explained movement of planets with retrograde motion
astronomy
Claudius Ptolemy
reflecting telescope
Hubble's law
39. An elongated circle - or oval shape - the shape of the planets orbit
ellipse
Tycho Brahe
background radiation
red dwarf
40. The comet discovered in 1705 that repeats itself every 76 years and last appeared in 1986.
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41. A region of the solar system that is just beyond the orbit of neptune and that contains small bodies made mostly of ice
big bang theory
supergiant
Kuiper Belt
nebula
42. A graph relating the temperature and brightness of stars
Hertzsprung-Russel Diagram
the big crunch
Oort Cloud
Johannes Kepler
43. The rainbow effect when light is dispersed through lens
accretion
Galileo Galilei
chromatic abberation
cepheid variable
44. Explained movement of planets with retrograde motion
cepheid variable
Claudius Ptolemy
electromagnetic spectrum
geocentric
45. The elliptical motion of a body as it orbits another body in space
main-sequence star
aphelion
Halley's Comet
evolution
46. A system of two stars that revolve around each other under their mutual gravitation
cepheid variable
big bang theory
binary star
the big crunch
47. 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
red shift
photon
Hubble Space Telescope
Oort Cloud
48. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
astronomy
lunar eclipse
asteroid
retrograde motion
49. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
nova
light-year
refracting telescope
local group
50. Point in orbit that is closest to the sun - planet moves faster
perhelion
white dwarf
cepheid variable
local group