Test your basic knowledge |

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. A measure of the ability of a telescope to see fine detail






2. A small spherical dark nebula






3. Venus






4. Wave- only waves cause an interference pattern when passing through a double slit - particle- only particles deposit energy at specific locations (the way an image builds up on digital camera)






5. A quantity measuring the stability of the Earth's atmosphere






6. A small round distribution of gas surrounding a dying star






7. The first rock-sized bodies that formed in the solar nebula from dust grains






8. The location around an atom where an electron resides.






9. Poitns of gravitational stability in the orbit of a planet






10. What Ole Roemer used to measure the speed of light in a vacuum






11. A bridge of material held in position above the solar surface. They can remain for hours even days






12. Radiation given off by electrons accelerating in a magnetic field






13. The distance between a lens and its focal plane






14. The law that describes the blackbody curve - and let to quantum mechanics.

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15. Cold aggregates of gas - large and contain a huge amount of matter - so cold that molecules stick together to form molecules.






16. A galaxy sending out a stream of material from its nucleus






17. A planet orbiting about a distant star






18. A measure of the force of gravity on an object






19. Titan






20. The wavelengths where a specific element can absorb or emit light.






21. Hot cells of gas that rise and fall in the hotosphere






22. The rate of expansion of the universe.






23. Comglomerates of ice and rock that orbit the sun in highly elliptical paths






24. A large and bright but cool star.






25. 10 cm -> 1 mm






26. Electromagnetic Radiation






27. The apparent magnitude a star would have if it were at a distance of 10 parsecs.






28. The apparent backward motion of a planet against the background of stars.






29. A very dense - highly populated cluster of galaxies






30. Sulfurous volcanoes - pools of liquid sulfur - surface resembles cheese pizza ACTIVE SURFACE






31. The apparent path of the Sun through the stars on the celestial sphere.






32. The powdered stone fragments that make up the lunar 'soil'






33. The dimming of starlight by intervening dust






34. The measure of a variable star's apparent magnitude as it brightens and dims with time






35. Mercury






36. What do we think the actual fate of the universe will be and why do we think this?






37. Half of the longest diameter across an ellipse






38. Small moons that maintain the shape of rings around Saturn and Uranus






39. A crystalline patter found in iron meteorites






40. Clouds of low density gas often found glowing faintly on either side of an AGN.






41. The time when the universe cooled sufficiently for atoms to exist. radiation dominated= first 300000 years - THEN era of recombination turns into matter dominated for next.






42. Moon in less than the angular diameter of the Sun.






43. The fate of the universe if it is closed. The universe expanding as much as possible and then retracting






44. The distance light travels in one year (=9.46x10^12km).






45. The 11 or 22 period on the sun durin which sunspots increase - decrease - change polarity - increase and decrease again.






46. The average distance between the Earth and the Sun (=1.5 x10^8km)






47. An entity that is likely in the nucleus of most - if not all - galaxies.






48. Ganymede






49. The Big Bang was not an explosion of matter into empty space - like the explosion of a bomb. Instead - it was an emergence of space and time filled with pure energy where before none of this was present. The point from which is emerged is called the






50. The temp at which a substance in the vacuum of space solidifies