Lightning Lightning Quiz #1 [hard] by admin|Published May 18, 2023 1. What type of lightning is in the photo? Positive lightning (CG+) Bolt from the blue Superbolt None 2. Which type of cloud-to-ground lightning is more powerful (it produces larger currents) on average? Positive Negative None 3. What is the class of exceptionally powerful and bright lightning flashes, up to 1000x more powerful than normal lightning, that were first detected by satellites looking for nuclear explosions? Bolts from the blue Lightning megaflashes Superbolts Staccato lightning None 4. Very powerful positive cloud-to-ground flashes and extremely powerful negative lightning flashes also generate: NASA 2071131 97.7F Blue jets Gigantic jets Red sprites and ELVEs None 5. What is the greatest duration for a single lightning flash ever recorded (on June 18th, 2020 in a storm over Uruguay and northern Argentina)? 4 seconds 7 seconds 11 seconds 17 seconds None 6. How frequent are lightning superbolts? About 1 in 200 lightning flashes About 1 in 1000 lightning flashes About 1 in 8000 lightning flashes None 7. Where in this lightning flash did attachment between the stepped leader and the upward streamer most likely take place? Nearby lightning strike. Photo: Jure Atanackov. Between points A and B Between points B and C Anywhere between points A and C, can't say with more certainty None 8. How long was the longest (in length, not duration) lightning bold ever measured? 72 km (45 mi) 143 km (89 mi) 317 km (193 mi) 768 km (477 mi) None 9. Smooth channel is typical for: Positive lightning Negative lightning None 10. Lightning only occurs in thunderstorms that produce hail. TRUE FALSE None 11. Where do lightning superbolts occur more frequently? Over land Over sea None 12. Which areas have the highest frequency of occurrence of lightning superbolts? US Midwest The Mediterranean Sea, the northeast Atlantic, over the Andes Florida - Lightning alley Lake Maracaibo (Venezuela), Darwin (Australia), Kifuka (Congo) None 1 out of 12 Time's up
