ASTR 1345 FINAL EXAM ACTUAL QUESTIONS 2026 WITH VERIFIED ANSWERS.

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ASTR 1345 TEST #3
(UTA) ACTUAL QUESTIONS 2026
WITH VERIFIED ANSWERS.

1. What creates the apparent dark streaks on Mars' surface? -
correct answer-Dust devils




2. What causes the swirling patterns that appear on Jupiter? -
correct answer-Jupiter's clouds circulate in different
directions at different altitudes.




3. How long has Jupiter's "Great Red Spot" lasted? - correct
answer-At least 300 years




4. How big, on average, is Jupiter's "Great Red Spot"? - correct
answer-Twice the diameter of Earth




5. True/False:
6. Jupiter's rotation is 5 minutes SHORTER at the poles than
on the equator. - correct answer-False (The rotation time is 5
minutes LONGER on the poles of Jupiter)

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7. Which comet collided with Jupiter causing visible damage
from space? - correct answer-Comet Shoemaker-Levy (July
1994)




8. What gave the circulating and evolving clouds their white
coloration on Saturn? - correct answer-Crystals of ammonia
ice




9. Which planet is the windiest? - correct answer-Neptune
(wind speeds reach up to 2,000km/h)




10. Which planet contains a Great Dark Spot the size of
Earth? - correct answer-Neptune




11. What are Saturn's rings composed of? - correct answer-
Ice and ice-coated rocks




12. Even though Saturn's rings are 1000s of kilometers wide,
how thin are they? - correct answer-about 10m