Introduction to
Astronomy 10th Edition By
Thomas Arny, Stephen
Schneider (All Chapters 1-18,
100% Original Verified A+ Grade)
Part 1: Chapter 10-18
Part 2: Chapter 1-9
All Chapters Arranged Reverse.
Answers at the end of each Chapter
,Chapter 10 Test Bank Part 1: Chapter 10-18
Student name:__________
TRUE/FALSE - Write 'T' if the statement is true and 'F' if the statement is false.
1) The existence of amino acids in carbonaceous chondrites proves that life on Earth originated
in space.
⊚ true
⊚ false
2) Astronomers believe that most of the meteorites come from broken up asteroids and comets,
but some of the meteorites are fragments from the Moon or Mars.
⊚ true
⊚ false
3) The combined mass of all of the asteroids is probably less than 1/1,000 the mass of Earth.
⊚ true
⊚ false
4) Some asteroids have peculiar orbits that do not obey Kepler's laws.
⊚ true
⊚ false
5) In the inner part of the Asteroid belt one is more likely to find silicate-rich asteroids, while
the carbon-rich asteroids are more abundant in the outer parts of the Asteroid belt.
⊚ true
⊚ false
6) Astronomers believe that Pluto was pulled into the Solar System by Neptune. The hypothesis
is supported by the fact that Pluto and Neptune have a 3:2 orbital period ratio.
⊚ true
⊚ false
7) The dwarf planet Pluto and its moon Charon are unique in the Solar Systems in that the
orbital period of Charon equals the rotation period of Pluto. The synchronous rotation is the
result of tidal interaction between them.
⊚ true
⊚ false
8) The coma around the nucleus of a comet can be 10 times the size of Earth.
⊚ true
⊚ false
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,Chapter 10
9) Comets consist primarily of water, carbon dioxide, and carbon monoxide.
⊚ true
⊚ false
10) Halley's comet orbits the Sun approximately every 76 years, therefore it is a short-period
comet.
⊚ true
⊚ false
11) The Oort cloud was probably formed by planetesimals that were tossed to the outer parts of
the Solar System by the planets.
⊚ true
⊚ false
MULTIPLE CHOICE - Choose the one alternative that best completes the statement or
answers the question.
12) Why do astronomers believe chondrite meteorites are about 4.6 billion years old—formed
when the Solar system formed?
A) Their chemical composition suggests they are pieces broken off Mars, which is
believed to have formed at that time.
B) There is no other reasonable period in the solar system's history when any meteoroids
could have formed.
C) The chemicals they are made of were only common at the formation of the solar
system.
D) Radioactive dating can be used to determine their age.
13) Fragments that do not completely burn in the atmosphere and eventually fall on Earth are
called
A) meteoroids.
B) meteorites.
C) meteors.
D) asteroids.
14) Chondritic meteorites provide important clues because they are believed to
A) contain grains from the first material that condensed out of the Solar nebula.
B) contain many rare metals.
C) be the only source of the necessary amino acids required for life.
D) be the source of all coal found on Earth.
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, Chapter 10
15) What is a meteor?
A) a glowing trail of hot gas and debris heated as an object moves through the
atmosphere
B) a space rock that survives its fall through Earth's atmosphere and reaches the ground
C) the object that causes a "shooting star," but before it passes through the atmosphere
D) any one of the large rocky bodies that orbit the Sun, primarily between Jupiter and
Saturn
16) What is a meteoroid?
A) a glowing trail of hot gas and debris heated by friction as an object moves through the
atmosphere
B) a space rock that survives its fall through Earth's atmosphere and reaches the ground
C) the object that causes a "shooting star," but before it passes through the atmosphere
D) any one of the large rocky bodies that orbit the Sun, primarily between Jupiter and
Saturn
17) What is a meteorite?
A) a glowing trail of hot gas and debris heated by friction as an object moves through the
atmosphere
B) a space rock that survives its fall through Earth's atmosphere and reaches the ground
C) the object that causes a "shooting star," but before it passes through the atmosphere
D) any one of the large, rocky bodies that orbit the Sun, primarily between Jupiter and
Saturn
18) What is the difference between a meteor and a meteorite?
A) A meteorite is a very tiny meteor.
B) A meteorite is the pit made on Earth or a planet when a meteor hits.
C) A meteor is the flash of light in the sky. A meteorite is the solid body ending up on
the ground.
D) A meteorite is the flash of light in the sky. A meteor is the solid body ending up on
the ground.
E) A meteorite comes from a comet. A meteor comes from an asteroid.
19) What are the three broad categories of meteorites?
A) small, medium, and large
B) organic, inorganic, vegetal
C) iron, stony, stony-iron
D) red, yellow, and blue
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