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Astronomy Basics

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






2. The luminous cloud of particles surrounding the frozen nucleus of a comet






3. Spectrum of electromagnetic radiation emitted by a self-luminous source






4. The apparent change in position of an object when seen from different places






5. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece






6. A large cloud of dust and gas that can break apart into smaller pieces and form stars






7. The formation of a celestial object by the effect of gravity pulling together surrounding objects and gases






8. One of the small asteroid-like bodies that formed the building blocks of the planets






9. A star that expands and cools once it runs out of hydrogen fuel






10. All of the frequencies or wavelengths of electromagnetic radiation






11. Light distance travels in one year (9.5 trillion km)






12. Planet with a solid - rocky crust; more dense; Inner planet. Mercury - Venus - Earth - Mars






13. Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)






14. Any natural satellite of a planet






15. A model of the solar system in which Earth and the other planets revolve around the sun






16. A graph relating the temperature and brightness of stars






17. Optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece






18. Massive clouds of dust and gases where stars are born






19. The average distance between the Earth and the sun - or approximately 150000000 km






20. An extremely bright star of very large diameter and low density






21. The spinning of Earth on its axis






22. The brightness of a star when viewed from Earth






23. A measure of the amount of light that a star actually emits






24. The elliptical motion of a body as it orbits another body in space






25. The name of our galaxy - a spiral galaxy that contains about 400 billion stars






26. Brahe's assistant - German astronomer who first discovered the three laws of planetary motion (1571-1630)






27. All of the frequencies or wavelengths of electromagnetic radiation






28. Radiation left over from the beginning of the universe






29. 23.5° - the reason we have seasons

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30. The increase in wavelength of light due to an object moving away from the observer






31. The brilliant explosion of a dying supergiant star






32. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune






33. A model of the universe based on the assumption that the sun - moon - and planets all orbit Earth






34. An extremely bright star of very large diameter and low density






35. The study of the universe






36. Point of moon's orbit when it is nearest the earth






37. When the northern or southern most point on earth receives the most sun because the earth is tilted toward the sun






38. 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






39. The place in the orbit of a planet where the planet is farthest from the sun






40. The farther away a galaxy is - the faster it is moving away

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41. The luminous cloud of particles surrounding the frozen nucleus of a comet






42. The study of the spectra of stars by analyzing the spectral properties of the light they give off






43. 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.






44. A spectrum of light in which there are no gaps - so that each region blends directly into the next






45. A star that falls into the main sequence category on the H-are diagram






46. The small - dense remains of a high-mass star after a supernova






47. A faint star of enormous density






48. Planets with low densities and are huge gas giants. Jupiter - Saturn - Uranus - Neptune






49. Varying amounts of the lighted moon as seen from earth






50. A region of the solar system that is just beyond the orbit of neptune and that contains small bodies made mostly of ice







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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