Test 2 nemcc astronomy main

All four jovians spin faster than any of the terrestrials.

true

All the planets revolve around the Sun counter clockwise, except for Venus and Uranus.

False

All the terrestrial planets lie inside the asteroid belt.

True

Although it is almost the same size as Jupiter, Saturn's gravity is about 2.5 times less, because of Saturn's lower mass and density.

True

Mercury has an unusually small core.

False

Methane drives the weather of Titan, for there it can be liquid, solid, or gas.

True

No evidence of impact craters has been found on Venus.

False

Pluto's classification as a planet has been called into question.

True

Saturn is less dense than water.

True

The Oort Cloud lies closer to the Sun than the Kuiper Belt.

False

The continuing rise of carbon dioxide concentration in our troposphere is leading to worldwide cooling as dry ice forms at the poles.

False

Uranus' rotation axis is tipped over 98 degrees, so its magnetosphere is tipped over the same amount.

False

Venus can appear as a crescent through the telescope

True

When plates collide, they fuse together and come to rest.

False

William Herschel was the discoverer of Uranus

True

A meteorite is

a chunk of space debris that has struck the ground.

Adams and Leverrier both predicted the position of Neptune, based on its effects on

Uranus

Alternating zones of rising and sinking gas in Jupiter's atmosphere

Create light and dark bands

As a rotating gas cloud contracts, it spins

faster due to conservation of angular momentum.

Essentially, the Great Red Spot is

a large cyclonic storm (hurricane).

If you could find a bathtub big enough for Saturn, the planet would

Float

Much of the water on Mars

is thought to be in a layer of permafrost just below the surface.

Pluto's density is most similar to

the moons of the jovian planets.

Relative to the comet, the direction of the ion tail tells us

The direction of the sun

The Cassini Division is a gap in Saturn's rings caused by

gravitational interaction with Mimas.

The Kuiper Belt is found where in the solar system?

Beyond the orbit of Neptune

The atmosphere of Titan is composed mostly of

Nitrogen

The atmospheric pressure on Venus

Is much higher than on earth

The average rate of erosion on the Moon is far less than on Earth because

the Moon lacks wind, water, and an atmosphere.

The largest moon in the solar system, bigger but not as massive as Mercury, is

Ganymede

The lunar mare are found

Mainly on the near side

The main constituent of the Martian atmosphere is

Carbon dioxide

The region in which charged particles are trapped by our magnetic fields is the

Van Allen radiation belt

The scarps on Mercury were probably caused by

The crust cooling and shrinking

The two outer jovians appear bluish in color because

methane gas in their atmospheres absorbs red light well.

We determine the structure of the Earth's core using

Seismic wave data

What is the source of Jupiter's intense radio waves and magnetism?

liquid metallic hydrogen swirling in the rapidly spinning mantle

What is thought to be the cause of Io's volcanoes?

gravitational tidal stresses from both Jupiter and Europa

What is true about solar system densities?

The denser planets lie closer to the Sun.

What is true of Mars?

Iron oxide on the surface is responsible for its reddish color.

What is true of the Moon's orbital and rotational periods?

They are equal

When strong solar winds are displaced poleward by our magnetic fields, we get

intense auroral displays.

Which are the four Galilean moons of Jupiter?

Io, Europa, Ganymede, and Callisto

Which body has the densest atmosphere?

Venus

Which of the following have an icy composition?

Comets

Which of these moons has the densest atmosphere?

Titan

Which of these theories seems to best explain the Moon's origin?

Impact Theory

Which planet by itself contains the majority of mass of all the planets?

Jupiter

Which planet had the Great Dark Spot in 1989, but had lost it by 1995?

Neptune

Which planet shows the widest range of surface temperatures between day and night?

Mercury