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. Large nebula consisting of very cold gas and dust






2. Light-colored high-pressure bands in Jupiter's atmosphere






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

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4. The dark - relativley smooth areas on the moon; Latin for sea






5. Saying that the sky should not get dark at night because all lines of sight end on a star meaning that the night sky should be ablaze BUT the big bang - because the universe had a beginning - says that the sky gets dark because out in space - galaxie

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6. Plate tectonics due to thickness of crust and maintain their general form when they collide-where most volcanoes are.






7. Orbit in Jupiters orbit






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






9. Is there water on the moon?






10. Dying small mass stars lose their outer layers in a relatively gentle way - creating a round or bipolar nebula about the star (round like planets)






11. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.






12. When one side of a body always faces the planet it revolves around






13. The place in the sky that the Earth's axis points toward (can be either north or south)






14. 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






15. The state of having a balance between inward and outard pressures in a gas--the inward force from gravity is balanced by the outward force from heat.






16. Large bulge - tightly wound spiral arms - relatively few h2 regions and are smooth






17. The distance a moon can be from a planet before shattering from tidal forces






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






19. The point in its orbit where a planet is farthest from the sun






20. An element of a highly efficient - two-dimensional electronic light detector






21. Centered on the sun.






22. A telescope that uses lenses to focus light






23. A word meaning 'the same in all directions.'






24. Titan






25. A younger cluster of stars - found in the galaxy disk






26. The oldest part of the Milky Way






27. A collection of galaxies like the one the Milky Way belongs to






28. A planet that is closer to the sun than the earth






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






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






31. 1μm 100 nm






32. 10^2 nm 10^7 nm






33. A subatomic particle with a negative charge. It creates light.






34. Then the Sun moves from north to south across the celestial equator (about September 23)






35. Finding a star's absolute magnitude from it's placement on an HR diagram. After finding the absolute magnitude - we measure the apparent magnitude - for a distance modulus and use this to find the distance. This method is good for finding distances t






36. Latin for 'cloud'. A word used to describe the collections of gas and dust in the Milky Way and other galaxies






37. Form honeycomb like patterns surrounding empty or nearly empty voids.






38. Mercury - Venus - Earth - Mars






39. The rock that makes up the lunar highlands






40. The rock that makes up the lunar maria






41. Any class of objects with a uniform luminosity used to determine distance.






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






43. The fusion process that turns three helium nuclei into a carbon nucleus






44. A two-filter measure of the color - and hence temperature - of a star.






45. A continuous spectrum of light missing energy at a few wave lengths.






46. A spectrum of light with energy at only a few wavelengths.






47. The rate of expansion of the universe.






48. Flattened spherical distribution of old stars with some young stars too. 'hub' of Milky way - stars orbit with solid body speeds. Elongated into bar shape






49. Consists of old red stars in slow orbits that plunge through disk and bulge. about 1% are old - round globular clusters.






50. Formed from slow rotating clouds - collapsed quicker - initial star formation rate is high but died out - older - little rotation - look redder