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Waves

Waves. 10. 20. 30. 40. 50. Heat. 10. 20. 30. 40. 50. Waves 2. 10. 20. 30. 40. 50. Buoyancy. 10. 20. 30. 40. 50. Misc. 10. 20. 30. 40. 50. Category 1 questions follow. Most of the waves in the electromagnetic spectrum Are Longitudinal Are Blue shift light

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Waves

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  1. Waves 10 20 30 40 50 Heat 10 20 30 40 50 Waves 2 10 20 30 40 50 Buoyancy 10 20 30 40 50 Misc 10 20 30 40 50

  2. Category 1 questions follow

  3. Most of the waves in the electromagnetic spectrum Are Longitudinal Are Blue shift light Are invisible 10 Category 1

  4. invisible 10 Category 1

  5. Identify all waves that can travel through a vacuum. Light Radio Sound X-rays Tv 20 Category 1

  6. All but sound 20 Category 1

  7. Which letters indicate a node? 30 Category 1

  8. D and B are nodes Nodes are minimum amplitude Antinodes are maximum amplitude points 30 Category 1

  9. What are basic differences between sound waves and electro-magnetic waves? 40 Category 1

  10. Sound waves are longitudinal Travel around 330 m/s (depending on temp) Can not travel through a vacuum E-M waves Are transverse Travel at speed of light Include radiowavestv- NOT SOUND Can travel through a vacuum 40 Category 1

  11. Which of the following is not true about sound waves? Sound is a transverse wave Sound can travel through a vacuum Sound moves at right angles to the direction of travel 50 Category 1

  12. Sound is a transverse wave FALSE Sound can travel through a vacuum FALSE Sound moves at right angles to the direction of travel-TRUE 50 Category 1

  13. Category 2 questions follow

  14. Which is not correct? Sparklers don’t burn because there is very few molecules to transfer the energy The energy in the sparkler molecules is very high The higher the temperature of the object, the shorter the wavelength Sparklers burn because there is a high concentration of heat in the molecules and they should be outlawed. 10 Category 2

  15. Sparklers don’t burn because there is very few molecules to transfer the energy The energy in the sparkler molecules is very high The higher the temperature of the object, the shorter the wavelength Sparklers burn because there is a high concentration of heat in the molecules and they should be outlawed. WRONG 10 Category 2

  16. A pot of hot water will cool to room temperature faster in a___ pot Silver White black 20

  17. c. black 20 Category 2

  18. What is a Chinook Wind? 30 Category 2

  19. Category 2 answer for 30 points 30 Category 2

  20. If water is in a phase change (boiling), what happens to the temperature of that water if the temperature is turned up? 40 Category 2

  21. Nothing would happen to the temperature of the water. Temperature increase would cause a change in phase, but as long as it is liquid water (not steam), the temp. does not change. 40 Category 2

  22. This is an example of a ______________ 50 Category 2

  23. Thermal Inversion 50 Category 2

  24. Category 3 Waves questions follow

  25. A ____________ wave is produced when a wave source moves faster than the wave produced. 10 Category 3

  26. Bow 10 Category 3

  27. A wiggle in time is a _________________ Wave Vibration Transverse wave 20 Category 3

  28. vibration 20 Category 3

  29. Why does a child standing in a swing make the swing have a shorter swing? (What 2 factors will affect the time of the swing?) 30 Category 3

  30. It has a shortened length of the pendulum. (length & acceleration of gravity for the location) 30 Category 3

  31. Which of the following is not correctly matched? Transverse waves move at right angles to the direction of wave travel Longitudinal wave moves along the direction of wave travel Sound Waves- Longitudinal waves Radio waves- sound waves 40 Category 3

  32. Radio waves are electromagnetic waves, not Sound waves 40 Category 3

  33. Which is correct? Sound is fastest in Solids than in liquids In warm air than in cold air In non-elastic materials 50 Category 3

  34. All are correct Sound is fastest in Solids than in liquids Sound is fastest in In warm air than in cold air Sound is fastest in non-elastic materials 50 Category 3

  35. Category 4 Buoyancyquestions follow

  36. An elephant steps into a ship and displaces an additional 30 tons of water. How much does the elephant weigh? 10 Category 4

  37. 30 tons. An object will displace the same exact weight of water 10 Category 4

  38. If the ice in a glass of tea melts, the level of the fluid in the glass will Rise Fall Stay the same 20 Category 4

  39. Remains the same 20 Category 4

  40. A balloon will displace a volume of air equal to the weight of air the balloon displaces Will rise until the air pressure inside the balloon equals the pressure outside Both above are correct None are correct 30 Category 4

  41. C Both a and b 30 Category 4

  42. When an object is partly or wholly immersed in a liquid, it is buoyed up by ______________ 40 Category 4

  43. by a force equal to the weight of liquid displaced. 40 Category 4

  44. Where will the swimmer have least buoyancy? On the surface of the water At mid-level in the water At the bottom 50 Category 4

  45. On the surface The totally submerged, anywhere would have more force touching all points 50 Category 4

  46. Category 5 MISCquestions follow

  47. What is the main difference between how gases and plasma affect electrical current? 10 Category 5

  48. Plasma can conduct electric current 10 Category 5

  49. What happens when matter and anti-matter come together? (What is the result?) 20 Category 5

  50. An equal amount of matter & antimatter would be annihilated and turned into pure energy 20 Category 5

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