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Test your basic knowledge |
Astronomy Basics
Start Test
Study First
Subject
:
science
Instructions:
Answer 50 questions in 15 minutes.
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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. Radiation left over from the beginning of the universe
black hole
nebula
Kuiper Belt
background radiation
2. All of the frequencies or wavelengths of electromagnetic radiation
electromagnetic spectrum
retrograde motion
retrograde motion
meteor
3. Spectrum of electromagnetic radiation emitted by a self-luminous source
lunar eclipse
lunar eclipse
meteroid
emission spectrum
4. Stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
Oort Cloud
Hertzsprung-Russel Diagram
terrestrial planet
meteorite
5. A group of stars that form a pattern in the sky
protostar
constellation
universal gravitation
cepheid variable
6. 23.5° - the reason we have seasons
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7. A star that falls into the main sequence category on the H-are diagram
white dwarf
evolution
universal gravitation
main-sequence star
8. A galaxy shaped like a flattened ball - containing only old stars
elliptical galaxy
reflecting telescope
main-sequence star
earth's tilt
9. The name of our galaxy - a spiral galaxy that contains about 400 billion stars
ellipse
milky way galaxy
galaxy cluster
nova
10. A faint star of enormous density
spectroscopy
white dwarf
Kuiper Belt
continuous spectrum
11. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune
Jovian planet
white dwarf
Kuiper Belt
asteroid
12. 23.5° - the reason we have seasons
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13. Change in the apparent frequency of a wave as observer and source move toward or away from each other
asteroid
Tycho Brahe
Hubble's law
doppler effect
14. Light distance travels in one year (9.5 trillion km)
reflecting telescope
nebulae
Hertzsprung-Russel Diagram
light-year
15. A model of the universe based on the assumption that the sun - moon - and planets all orbit Earth
red dwarf
Jovian planet
geocentric
phases of the moon
16. The place in the orbit of a planet where the planet is farthest from the sun
phases of the moon
Jovian planet
meteroid
aphelion
17. The luminous cloud of particles surrounding the frozen nucleus of a comet
spectroscopy
coma
red dwarf
solstace
18. The rainbow effect when light is dispersed through lens
coma
chromatic abberation
rotation
neutron star
19. When the moon passes between earth and the sun - blocking the sunlight from reaching earth
solar eclipse
protostar
constellation
radio telescope
20. A group of stars that form a pattern in the sky
constellation
radio telescope
electromagnetic spectrum
red dwarf
21. All of the frequencies or wavelengths of electromagnetic radiation
local group
electromagnetic spectrum
Galileo Galilei
nebulae
22. A spectrum of light in which there are no gaps - so that each region blends directly into the next
quasar
Galileo Galilei
nova
continuous spectrum
23. Explained movement of planets with retrograde motion
apparent magnitude
white dwarf
Halley's Comet
Claudius Ptolemy
24. A model of the solar system in which Earth and the other planets revolve around the sun
heliocentric
accretion
main-sequence star
comet
25. A particle of electromagnetic radiation having zero mass and carrying a quantum of energy
Oort Cloud
photon
precession
galaxy
26. A system of galaxies containing from several to thousands of member galaxies
Nicolaus Copernicus
spiral galaxy
red giant
galaxy cluster
27. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
meteor
binary star
Johannes Kepler
galaxy
28. A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
Jovian planet
rotation
spiral galaxy
meteroid
29. Chunk of rock or dust in space
red giant
rotation
meteroid
meteor
30. English mathematician and physicist - discovered the law of universal gravitation
protostar
heliocentric
Halley's Comet
Sir Isaac Newton
31. A very small star with low temperature - reddish in color
radio telescope
red dwarf
galaxy cluster
main-sequence star
32. The spinning of Earth on its axis
heliocentric
doppler effect
rotation
Jovian planet
33. One of the small asteroid-like bodies that formed the building blocks of the planets
planetesimal
cepheid variable
nova
nova
34. The distance between crests of waves - such as those of the electromagnetic spectrum
spiral galaxy
nebula
wavelength
red shift
35. A group of about 30 galaxies that includes the Milky Way
supergiant
retrograde motion
local group
Hubble Space Telescope
36. The average distance between the Earth and the sun - or approximately 150000000 km
emission spectrum
astronomical unit (AU)
meteorite
white dwarf
37. 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
spiral galaxy
nebulae
white dwarf
38. Influenced by Copernicus; Built observatory and collected data on the locations of stars and planets for over 20 years
Tycho Brahe
photon
solstace
white dwarf
39. The brilliant explosion of a dying supergiant star
background radiation
radio telescope
supernova
milky way galaxy
40. A graph relating the temperature and brightness of stars
Hertzsprung-Russel Diagram
elliptical galaxy
nebulae
nebula
41. A contracting cloud of gas and dust with enough mass to form a star
protostar
red giant
absolute magnitude
cepheid variable
42. 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
asteroid
element
precession
43. The average distance between the Earth and the sun - or approximately 150000000 km
doppler effect
astronomical unit (AU)
Tycho Brahe
universal gravitation
44. 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
retrograde motion
nebula
universal gravitation
Sir Isaac Newton
45. A contracting cloud of gas and dust with enough mass to form a star
refracting telescope
red giant
wavelength
protostar
46. The theory that states that gravity will over come the expansion of the universe and bring everything together in an implosion
black hole
light-year
asteroid
the big crunch
47. A variable star that brightens and dims regularly - or pulses - and whose distance can be determined from its period of pulsation
evolution
cepheid variable
absorption spectrum
phases of the moon
48. A system of two stars that revolve around each other under their mutual gravitation
binary star
galaxy
radio telescope
irregular galaxy
49. A space telescope and camera named for a famous astronaut (Edward Hubble) used to study space elements
big bang theory
cepheid variable
Hubble Space Telescope
supergiant
50. Any of the small solid extraterrestrial bodies that hits the earth's atmosphere
local group
apogee
meteor
evolution
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