Chapter 11 Flashcards
Uranus’ large axial tilt is thought to be the result of:
multiple catastrophic events, such glancing collisions
What spacecraft was intentionally destroyed in 2003 so that it could not hit Europa?
Galileo
How does the heat Jupiter radiates compare to the energy it receives from the Sun?
jupiter radiates back into space about twice the energy it gets frm the Sun
Which of the following discoveries was NOT made by Voyager 1 or 2?
jupiter has cloud bands in its upper atmosphere
In strength, the magnetic fields of Uranus and Neptune are:
similar, with both about 100 times stronger than our own
Our most detailed knowledge of Uranus and Neptune comes from:
spacecraft expolration
The belts of Jupiter are best described as :
regions of downward moving material and low pressure
The only spacecraft to have visited Uranus and Neptune was:
voyager 2
On what basis did Herschel think he had found a comet?
all of the above are correct
What is thought to lie at the center of Jupiter?
a massive core of rocky materials with some iron mixed in
What do our magnetic field and Jupiter’s share?
auroral displays in the polar regions
What is the source of Jupiter’s excess energy?
the slow escape of gravitational energy released during the planet’s formation
Saturn is noticeably oblate because:
it is a fluid body that is spinning rapidly
Compared to its rotational axis, Jupiter’s magnetic field:
lies about 10 degress off, much like our own rotation and magnetic filed
The rings of Uranus and Neptune are found:
above their equators
