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- 1. Multiple Choice
Nearly everything we understand about the universe comes from ___ancient fossilsphysical specimenslight emitted or reflected by objectselectrical experiments - 2. Multiple ChoiceA "shooting star" is really a tiny bit of interplanetary debris heated to ___fluorescencephosphorescenceincandescencechemiluminescence
- 3. Multiple ChoiceBefore it becomes a "shooting star", the actual bit of solid stuff coming from space is called ___a meteoroida meteora meteoritean asteroid
- 4. Multiple ChoiceThe phenomenon of a meteoroid getting hot and blazing across the sky is called ___a cometa meteora meteoritean asteroid
- 5. Multiple ChoiceIf a meteor hits the ground, we call it ___a meteoroida fallen stara meteoritean asteroid
- 6. Multiple ChoiceAccording to Phil Plait, what's the best way to tick off an astronomer?mix up the terms meteor and meteoriteAsk 'em, "Hey, what's your sign?"Ask "How old are you in light years?"complain about Pluto not being a planet anymore
- 7. Multiple ChoiceFor a typical meteor that you'll see, what is the size of the meteoroid?smaller than a grain of sandabout the size of a marbleabout the size of a softballabout the size of a basketball
- 8. Multiple ChoiceWhen a meteoroid enters our atmosphere, it can be moving at speeds up to __70 kilometers per hour700 kilometers per hour70 kilometers per second700 kilometers per second
- 9. Multiple ChoiceThe energy of motion is called ___elastic energykinetic energykathartic energykickback energy
- 10. Multiple ChoiceIf you double an objects speed, it will have ___half the kinetic energytwice the kinetic energyfour times the kinetic energy16 times the kinetic energy
- 11. Multiple ChoiceMeteors get hot due to friction with air, but a far bigger contributor to their heat is ___thermal expansion of materialexpansion of aircompression of airablation
- 12. Multiple ChoiceThe material on the surface of a meteor vaporizes and blows away during a process called ___sublimationcondensationablationabstraction
- 13. Multiple ChoiceWhen you add up all the meteors, Earth is getting pelted with about __a ton of material a daya hundred tons of material a daya ton of material a yeara hundred tons of material a year
- 14. Multiple ChoiceRandom meteors, which generally come from the collision of asteroids, are called ___dependable meteorssporadic meteorsmeteor showersmethodical meteors
- 15. Multiple ChoiceMeteor showers, many dozens or even hundreds of meteors per hour, come from ___asteroidscometsasteroid collisionsplanet collisions
- 16. Multiple ChoiceDuring a meteor shower, the point on the sky where the meteors come from is called ___the radiantthe vertexthe originthe locus
- 17. Multiple ChoiceA meteor shower is named after ___famous astronomersthe time of year of the showerthe closest star to the radiantthe constellation the radiant's in
- 18. Multiple ChoiceGenerally, when is the best time to watch a meteor shower?just before sunrisejust after sunsetafter local midnightduring astronomical twilight
- 19. Multiple ChoiceAn extremely bright meteor, which can be about the size of a grapefruit, is called ___a bolide or fireballa bovine or hairballa bovine or fireballa bolide or hairball
- 20. Multiple ChoiceThe majority of meteorites we find are mostly rock, and are classified as ___stonystony ironcompositerocky iron
- 21. Multiple ChoiceThe small grains of minerals, found in very primitive meteorites are called ___seedsbolideschondrulesmorsels
- 22. Multiple ChoiceIron meteorites most likely come from the center of ___a small cometa small asteroida large cometa large asteroid
- 23. Multiple ChoiceOn February 15th, 2013, which city was hit with a shock wave from an exploding meteor?Chelyabinsk, RussiaNaples, ItalyShenzhen, ChinaLuhansk, Ukraine
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