Question 1

By far the most common elements in the Universe and in our solar system are ____________.

Accepted Answer

A)  nitrogen and oxygen
B)  iron and manganese
C)  hydrogen and helium
D)  hydrogen and oxygen

Question 2

Which of the following bodies is the smallest?

Accepted Answer

A)  planet
B)  star
C)  protoplanet
D)  planetesimal

Question 3

The figure below represents the final stage in Earth's formation,which was marked by all of the following EXCEPT ____________.

Accepted Answer

A)  atmosphere formation
B)  rains creating the oceans
C)  gases being added by passing comets
D)  differentiation of the core and mantle

Question 4

Which of the following is NOT true about the Kuiper Belt?

Accepted Answer

A)  Gerald Kuiper predicted its existence in 1951.
B)  In 1992,astronomers discovered millions of icy objects in this region,which is beyond Neptune.
C)  It contains an object called Eris,which is 20% larger than Pluto.
D)  Pluto and Eris are now both considered planets.

Question 5

The gas giant,or Jovian,planets are ____________.

Accepted Answer

A)  Mars,Mercury,and Venus
B)  Mars,Venus,and Jupiter
C)  Jupiter,Saturn,Uranus,and Neptune
D)  Mars and Saturn

Question 6

Chemically,the Moon is quite similar to ____________.

Accepted Answer

A)  sea water
B)  Earth's crust
C)  Earth's mantle
D)  Earth's core

Question 7

The inner planets are terrestrial because _________________ .

Accepted Answer

A)  they are made of volatile materials
B)  they are made of refractory materials
C)  as our Solar System's proto-Sun formed,the inner part of our protoplanetary disk got hotter causing evaporation
D)  B and C are both correct.
E)   A and C are both correct.

Question 8

The circumference of Earth is most nearly ____________.

Accepted Answer

A)  400 km
B)  4,000 km
C)  40,000 km
D)  4,000,000 km

Question 9

This is an image of ____________.

Accepted Answer

A)  planetesimals forming protoplanets
B)  protoplanets forming planetesimals
C)  asteroids forming protoplanets
D)  asteroids forming planetesimals

Question 10

Differentiation of the core from the mantle early in Earth's history was possible because the planet was ____________ at the time.

Accepted Answer

A)  very cold
B)  very hot
C)  very small
D)  the only planet in the Solar System

Exam 1: Cosmology and the Birth of Earth

Which of the following bodies is the smallest?

Correct Answer
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This is an image of ____________.

Correct Answer
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By far the most common elements in the Universe and in our solar system are ____________.

Correct Answer
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The gas giant,or Jovian,planets are ____________.

Correct Answer
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The figure below represents the final stage in Earth's formation,which was marked by all of the following EXCEPT ____________.

Correct Answer
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The circumference of Earth is most nearly ____________.

Correct Answer
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Differentiation of the core from the mantle early in Earth's history was possible because the planet was ____________ at the time.

Correct Answer
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Chemically,the Moon is quite similar to ____________.

Correct Answer
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The inner planets are terrestrial because _________________ .

Correct Answer
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Which of the following is NOT true about the Kuiper Belt?

Correct Answer
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Exam 1: Cosmology and the Birth of Earth

Which of the following bodies is the smallest?

Correct AnswerverifiedShow Answer

This is an image of ____________.

Correct AnswerverifiedShow Answer

By far the most common elements in the Universe and in our solar system are ____________.

Correct AnswerverifiedShow Answer

The gas giant,or Jovian,planets are ____________.

Correct AnswerverifiedShow Answer

The figure below represents the final stage in Earth's formation,which was marked by all of the following EXCEPT ____________.

Correct AnswerverifiedShow Answer

The circumference of Earth is most nearly ____________.

Correct AnswerverifiedShow Answer

Differentiation of the core from the mantle early in Earth's history was possible because the planet was ____________ at the time.

Correct AnswerverifiedShow Answer

Chemically,the Moon is quite similar to ____________.

Correct AnswerverifiedShow Answer

The inner planets are terrestrial because _________________ .

Correct AnswerverifiedShow Answer

Which of the following is NOT true about the Kuiper Belt?

Correct AnswerverifiedShow Answer

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