ASTRO 1 - Exam 3
Compared to Jupiter, how massive are Uranus and Neptune? A. 5% as massive B. 10% as massive C. 15% as massive D. 20% as massive E. 25% as massive
A. 5% as massive
Which of the following planets are gas giants? A. Jupiter and Saturn B. Uranus and Neptune
A. Jupiter and Saturn
Which of the following does the composition of a planet like Jupiter resemble: A. The Sun B. The Moon C. The Earth D. Mars E. The Asteroids
A. The Sun
Why is Jupiter reddish in color? A. Because it is very hot B. Because of the composition of its atmosphere C. Because it is moving very quickly D. Because it is rusty, like Mars
B. Because of the composition of its atmosphere
Why is Saturn flatter than Jupiter? A. Jupiter is closer to the Sun, so it is poofed-up, making it rounder B. Jupiter has more mass and thus stronger gravity to counter the rotational flattening C. Saturn's rings are larger causing it to flatten out more D. Jupiter is more solid than Saturn
B. Jupiter has more mass and thus stronger gravity to counter the rotational flattening
What gives Neptune and Uranus their blue color? A. Carbon Dioxide B. Methane C. Hydrogen D. Helium
B. Methane
The interiors of the giant planets are heated by gravitational contraction. We know this because: A. The cores are very hot B. The giant planets radiate more energy than they receive from the Sun C. The giant planets have strong magnetic fields D. The giant planets are mostly atmosphere
B. The giant planets radiate more energy than they receive from the Sun
Jupiter has enough mass to make 318 Earths. In contrast, Uranus and Neptune have only enough mass to make A. 100 Earths B. 70 Earths C. 15 Earths D. 2 Earths
C. 15 Earths
The element that can act like a metal when it is under tremendous pressure and is probably responsible for Jupiter and Saturn's magnetism is: A. Gold B. Helium C. Hydrogen D. Water E. Vanallenium
C. Hydrogen
Which of the following characteristics distinguishes Uranus from every other planet in our solar system? A. It has more than one moon B. It's atmosphere is made of gases C. It rotates on an axis tilted almost 90 degrees to the circle of its orbit D. It's orbit is significantly tilted relative to the orbits of the other planets E. It's magnetic axis does not lie in the same direction as its rotation axis
C. It rotates on an axis tilted almost 90 degrees to the circle of its orbit
Which of the following statements about the seasons on Jupiter is correct? A. Jupiter has seasons pretty much like the Earth; its axis has the same tilt, and each season is about the same length B. Jupiter has the same axis tilt as the Earth, but each season on Jupiter is much longer C. Jupiters axis is hardly tilted so it has no real seasonal variations D. Jupiter's orbit brings it much closer to the Sun in the summer and much farther from the Sun in Winter
C. Jupiters axis is hardly tilted so it has no real seasonal variations
Which planet has no measurable internal heat source? A. Jupiter B. Saturn C. Uranus D. Neptune
C. Uranus
How much more massive than Earth is Jupiter? A. 288 times B. 298 times C. 308 times D. 318 times
D. 318 times
Which feature do the Giant planets NOT share? A. Deep atmospheres B. Opaque clouds C. Quick rotations (10-17 hours) D. Active cyclonic storm spots
D. Active cyclonic storm spots
Compared to Jupiter, how massive is Saturn? A. 5% as massive B. 10% as massive C. 15% as massive D. 20% as massive E. 25% as massive
E. 25% as massive
