Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
|
Planets with orbital semimajor axes less than 0.1 AU are called: |
Hot |
|
|
All the terrestrial planets lie inside the asteroid belt |
True |
|
|
A solid body from the outer solar system that arrives intact on the Earth's surface is called: |
Meteorite |
|
|
All the planets revolve around the Sun in the same direction, except Venus and Uranus |
False
|
|
|
The Trojan asteroids are found |
Sixty degrees ahead of behind Jupiter, sharing its orbit around the sun. |
|
|
As the solar nebula contracts, it: |
Spins faster due to conservation of angular momentum |
|
|
Long period comets are believed to originally come from: |
The Oort cloud |
|
|
Streaks of light made when small debris hits our atmosphere are called: |
Meteors |
|
|
According to the solar nebula theory, planets: |
Are a common result of start formation |
|
|
Meteor showers are |
Usually annual event, as the orbits again intersect AND Caused by the Earth passing near the orbit of an old short-period comet |
|
|
Which of the following have an icy composition |
Comets |
|
|
Exoplanets known as super-earths: |
Have masses 2-10 times greater than that of earth |
|
|
The nucleus of a comet is typically |
A few km in size and ver low density |
|
|
The _______ is a vast spherical array of long period comet nuclei far beyond the orbit of Neptune |
Oor cloud |
|
|
All planets lie in orbits close to the ______ plane |
Ecliptic |
|
|
So far, beyond the solar system the extrasolar planets found have been mostly |
Large jovians very close to their star |
|
|
Meteoric material dates the formation of the solar system at about: |
4.6 billion years |
|
|
The Manicougan reservoir near Quebec is an example of: |
A large meteor impact |
|
|
Density is identified as: |
The mass of an object divided by its volume |
|
|
Which of the following are the Jovian planets |
Jupiter, Saturn, Uranus and Neptune only |
|
|
Relative to the comet, the direction of the ion tail tells us: |
The direction of the sun |
|
|
The most distant objects in our solar system are: |
The Oort Cloud |
|
|
In some cases, we have seen extrasolar planets pass in front of their stars |
True |
|
|
In composition, the ________ planets have rocky materials like the asteroids |
Inner (terrestrial) |
|
|
Due to their great masses, all four jovian worlds are much denser than earth |
False |
|
|
The ___ belt bodies orbit beyond neptune, but like the planets stay close to the ecliptic plane and in fairly circular orbits |
Kuiper |
|
|
Which planet by itself contains the majority of mass of all the planets? |
Jupiter |
