quiz 10 Astronomy

1.
	William Herschel thought he had found a comet when he spotted the green disk of: Student Response Correct Answer A. Neptune. B. Oberon.  C. Uranus.    D. Titania. E. Triton. Score: 1/1
2.
	Uranus was discovered Student Response Correct Answer  A. less than 250 years ago.    B. with a radio telescope. C. thousands of years ago. D. after examining perturbations in Neptune's orbit. E. by Galileo. Score: 1/1
3.
	Which three played a role in the finding of Neptune? Student Response Correct Answer  A. Adams, Leverrier, and Galle    B. Herschel, Hubble, and Einstein C. Shapley, Hubble, and Whipple D. Bode, Herschel, and Fraunhofer E. Newton, Einstein, and Tombaugh Score: 1/1
4.
	In terms of axial tilt, which of the jovians shows us the largest inclination? Student Response Correct Answer A. Neptune B. Pluto  C. Uranus    D. Jupiter E. Saturn Score: 1/1
5.
	The masses of Neptune and Uranus were first determined by Student Response Correct Answer A. observations of their magnetic fields. B. observations of their motions around the Sun. C. their densities divided by their volumes. D. their compositions.  E. observations of the motions of their satellites.    Score: 1/1
6.
	Studying the magnetospheres of the jovians has allowed us to measure their Student Response Correct Answer A. orbital period.  B. rotation rates.    C. orbital radius. D. ring system diameters. E. gravity. Score: 1/1
7.
	Unlike the other jovian planets, Uranus Student Response Correct Answer A. rotates slowly. B. has a featureless atmosphere. C. has only a few satellites.  D. has no internal energy source.    E. has no ring system. Score: 1/1
8.
	The time between equinoxes on Uranus is about Student Response Correct Answer A. 7 hours. B. 42 years.    C. 21 years.  D. 84 years. E. 8 hours. Score: 0/1
9.
	At the equator during the equinoxes on Uranus a day lasts Student Response Correct Answer A. 21 years. B. 84 years. C. 7 hours.  D. 8 hours.    E. 42 years. Score: 1/1
10.
	Neptune and Uranus have a bluish tint because: Student Response Correct Answer A. they are far away and distance makes objects appear bluish. B. ammonia ice reflects blue light better than any other color.  C. their atmospheres contain methane, which absorbs red light.    D. their atmospheres contain hydrogen and helium. E. at their distances, the Sun appears blue, the red absorbed by dust in the ecliptic. Score: 1/1
11.
	In 1989, Neptune was found to have a huge storm named the: Student Response Correct Answer A. Hellas Basin.  B. Great Dark Spot.    C. Galileo Regio. D. Great Red Spot. E. South Tropical Disturbance. Score: 1/1
12.
	The most abundant component of the atmospheres of Uranus and Neptune is Student Response Correct Answer A. Methane.  B. Hydrogen.    C. Nitrogen. D. Helium. E. Ammonia. Score: 1/1
13.
	In the atmospheres of the jovian planets, this component decreases, systematically, with distance from the Sun. Student Response Correct Answer A. Hydrogen B. Methane C. Ammonia     D. Nitrogen E. Helium Score: 0/1
14.
	Although the atmospheres of Uranus and Neptune are very similar, the atmosphere of Neptune contains more Student Response Correct Answer A. Helium.  B. Hydrogen. C. Nitrogen. D. Methane.    E. Ammonia. Score: 0/1
15.
	The magnetic field tilts of which two bodies are the most unusual? Student Response Correct Answer  A. Uranus and Neptune    B. Mars and Saturn C. Jupiter and Saturn D. Mercury and Earth E. Saturn and Venus Score: 1/1
16.
	In strength, the magnetic fields of Uranus and Neptune are: Student Response Correct Answer A. perfect fits for the Dynamo theory. B. like Jupiter and Saturn, due to mantles of liquid metallic hydrogen. C. very different, with flopped over Uranus having no field, and Neptune a strong one. D. even stronger than that of Jupiter.  E. similar, with both about 100 times stronger than our own.    Score: 1/1
17.
	What is erupting out of the geysers on Triton? Student Response Correct Answer A. liquid water with basalt B. liquid hydrogen with dark helium ash C. liquid methane with a dark hydrocarbon slush D. liquid carbon dioxide with graphite  E. liquid nitrogen with carbon grit    Score: 1/1
18.
	The rings of Uranus and Neptune are found: Student Response Correct Answer A. in the ecliptic plane. B. outside the Roche limit. C. by the Hubble Space Telescope.  D. above their equators.    E. all of the above Score: 1/1
19.
	In addition to Saturn's Titan, which other moon has a nitrogen atmosphere? Student Response Correct Answer  A. Neptune's Triton    B. Pluto's Charon C. Jupiter's Europa D. Uranus' Titania E. Jupiter's Ganymede Score: 1/1
20.
	The planet Neptune is Student Response Correct Answer A. barely visible with the naked eye. B. only visible with a small telescope or binoculars.    C. only visible with a space-based telescope.  D. only visible with a large, high quality telescope. E. easily visible with the naked eye. Score: 0/1
21.
	Which of the Uranian moons displays the widest range of surface terrains, suggesting some catastrophic disruption? Student Response Correct Answer  A. Miranda    B. Oberon C. Ariel D. Puck E. Umbriel Score: 1/1