Question 1

Discuss the apparent conflict between the nebulae hypothesis and the rotations of planets.

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Question 2

The process that formed the structure of the Earth and other terrestrial planets is

Accepted Answer

A)  convection. 
B)  gravity. 
C)  differentiation 
D)  acceleration. 
E)  tectonics.

Question 3

What two elements comprise most of a nebula?

Accepted Answer

A)  hydrogen and helium 
B)  hydrogen and nitrogen 
C)  oxygen and lithium 
D)  carbon and hydrogen 
E)  helium and lithium

Question 4

Both the Earth and Moon have craters but the smaller Moon has millions more than the Earth. If they both formed at the same time and under similar conditions, how can you account for this discrepancy?

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Question 5

In our solar system, we can say that moons

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A)  were most likely formed by spinning planets throwing off big chunks of material. 
B)  are all about the same size. 
C)  have less gravitational pull than that found on any planet. 
D)  usually have active volcanoes. 
E)  have been found orbiting all planets except for Mercury and Venus.

Question 6

Explain how the 'seasons' would be represented on Uranus.

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Question 7

After the Earth was formed

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A)  it was bombarded by huge chunks of rock. 
B)  outgassing ended. 
C)  its atmosphere remained virtually unchanged. 
D)  the densest materials collected as the Earth's crust. 
E)  its temperature was too cold to support life.

Question 8

Compare the surface of Jupiter's moons Io and Europa.

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Question 9

Explain the relationship between meteor showers and comets.

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Question 10

Why are the Jovian planets formed from materials different from the terrestrial planets?

Accepted Answer

A)  Terrestrial planets were protected by the asteroid belt between Mars and Jupiter. 
B)  The composition of elements in a planet was a random process after the Big Bang. 
C)  When the solar system first formed, the heaviest elements sank toward the center of the nebulae and the lightest elements floated out. 
D)  Gaseous Jovian planets, formed farther away from the heat of the Sun, are formed from light weight nebulae "dust." 
E)  Only the terrestrial planets formed from planetesimals.

Question 11

The Earth's atmosphere has probably been affected by all of the following except for

Accepted Answer

A)  volcanoes. 
B)  strong solar winds. 
C)  steam from the tropical jungles. 
D)  the number of living things on Earth. 
E)  increased amounts of hydrogen and helium.

Question 12

Describe the Galileo mission to Jupiter.

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Question 13

Explain the processes in the evolution of the Earth's atmosphere beginning with Earth as an airless, molten ball.

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Question 14

What is the consensus view today about the question of life on Mars?

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Question 15

Which scientist is credited with the discovery of Pluto?

Accepted Answer

A)  Percival Lowell 
B)  Isaac Newton 
C)  Clyde Tombaugh 
D)  Galileo Galilei 
E)  Pierre Laplace

Question 16

The mantle of the Earth can be described as

Accepted Answer

A)  resembling a metallic core. 
B)  containing hot, melted rock. 
C)  being like the surface of the Earth. 
D)  primarily gaseous. 
E)  helium, oxygen, magnesium, silicon.

Question 17

How are asteroids different from comets?

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Question 18

If only Newton's laws of motion affected motion in our solar system, then

Accepted Answer

A)  Venus's orbit could be the reverse of Earth's orbit. 
B)  Earth's Moon could rise in the west and set in the east. 
C)  Mars's orbit could be perpendicular to Jupiter's orbit. 
D)  Saturn's rings could be at random angles to their current plane. 
E)  all of these are correct.

Question 19

The impact collision theory of the Moon's formation

Accepted Answer

A)  was disproved by samples from the Apollo lunar missions. 
B)  states that the Moon was formed elsewhere in the Solar System and was captured by Earth's gravitational force. 
C)  suggests that the Moon was thrown from a spinning Earth. 
D)  states that the Earth was struck by a huge object, causing a large amount of mantle material to be blown into orbit. 
E)  suggests that the Moon was formed by light, less dense materials that floated into the orbit around the Earth.

Question 20

If the nebular hypothesis is correct, then what physical and chemical aspects of the solar system does it account for?

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Exam 16: Earth and Other Planets: Is Earth the Only Planet With Life