EAPS 106D - HW10

10.6. In Wikipedia, look up "Lightning", scroll down to "Lightning leaders", and answer this question: What are lightning leaders?

d. Electrically conductive channels of ionized gas that connect regions of opposite charge, creating a path for lightning (flash)

10.20. In Wikipedia, look up "TOtable Tornado Observatory" and answer this question: Which is not true about the TOTO?

d. It was designed to release little GPS balls to measure wind speed in a tornado, just like Dorothy in the move Twister.

10.1. In Wikipedia, look up "Water Cycle", scroll down to "Description", and answer this question: Which of the following describes what happens with increasing altitude?

. Air pressure decreases and the temperature drops.

10.10. In Wikipedia, look up "Tornado" and answer this question: True or False: A violently rotating column of air that is not in contact with the surface of the Earth can still be considered a tornado.

False

10.19. In Wikipedia, look up "Tornado", scroll down to "Ongoing research", and answer this question: True or False: Meteorologists have a fairly good understanding of how and when tornadoes form.

False

10.16. In Wikipedia, look up "Tornado", scroll down to "Intensity and Damage", and answer this question: True or False: According to current records, less than 1% of tornadoes are violent (EF4 or greater).

True

10.18. In Wikipedia, look up "Tornado", scroll down to "Safety", and answer this question: Which is the worst place to seek shelter from a tornado?

a. A highway overpass

10.12. In Wikipedia, look up "Supercell", scroll down to "Supercell anatomy", and answer this question: A mesocyclone is a rotating updraft of warm air within a supercell. Based on the panel of three figures in this section, how does it form?

a. By the tilting of a horizontal vortex

10.5. In Wikipedia, look up "Lightning", scroll down to "Electrification", and answer this question: Lightning is an electrostatic discharge between two electrically charged regions that allows electrons in a negatively charged region to flow back to the positive region. How did these regions in thunderstorms get oppositely charged to begin with?

a. When small ice crystals collide with hail within clouds.

10.7. In Wikipedia, look up "Thunder" and answer this question: What causes thunder?b. A sudden increase in temperature due to lightning produces a rapid expansion of the air that creates a shock wave.

b. A sudden increase in temperature due to lightning produces a rapid expansion of the air that creates a shock wave.

10.13. In Wikipedia, look up "Tornado", scroll down to "Tornado rating scale", and answer this question: What is the Fujita (or Enhanced Fujita) scale used to rate the power of tornadoes based on?

b. Damage caused

10.11. In Wikipedia, look up "Supercell" and answer this question: Which distinguishes supercells from all other thunderstorms?

b. Its rotation

10.15. In Wikipedia, look up "Tornado", scroll down to "Climatology", and answer this question: When are tornadoes most common?

b. Spring

10.9. In Wikipedia, look up "Downburst" and answer this question: What is a downburst?

c. A strong ground-level wind that emanates from a source above and blows in straight lines in all directions from the point of contact at ground level.

10.2. In Wikipedia, look up "Water Cycle", scroll down to "Description", and answer this question: What happens to water vapor (which is an invisible gas) as it cools?

c. It condenses into tiny drops which are heavier than air

10.14. In Wikipedia, look up "Tornado", scroll down to "Climatology", and answer this question: Which region experiences the most tornadoes?

c. The United States

10.4. In Wikipedia, look up "Cold front", scroll down to "Development of cold fronts", and answer this question: Happens when mass of colder air move into where warmer air is present?

c. The drier, colder air forms a steeply sloping boundary under the warmer, moister air at the surface and lifts that air.

10.8. In Wikipedia, look up "Hail" and answer this question: Which of the following is not required for hail to be generated?

c. The presence of snow

10.17. In Wikipedia, look up "Tornado", scroll down to "Radar", and answer this question: What does Doppler radar measure in order to spot evidence of rotation in storms.

c. Velocity

10.3. In Wikipedia, look up "Cumulonimbus cloud" and answer this question: Which of the following can be produced by cumulonimbus clouds?

d. All the above