Question 1

What type of celestial bodies are found within the Oort cloud?

Accepted Answer

A)  terrestrial-like planets 
B)  planetesimals 
C)  icy gas giants 
D)  dust and rock 
E)  icy bodies 
A)  terrestrial-like planets 
B)  planetesimals 
C)  icy gas giants 
D)  dust and rock 
E)  icy bodies E

Question 2

What space mission has collected data on Vesta, with its next destination to be Ceres?

Accepted Answer

A)  New Horizons 
B)  HST 
C)  SOHO 
D)  Dawn 
E)  Deep Impact 
A)  New Horizons 
B)  HST 
C)  SOHO 
D)  Dawn 
E)  Deep Impact D

Question 3

The ____ of a comet is a lump of fragile, porous material containing ices of water, carbon dioxide, and ammonia.

Accepted Answer

A)  nucleus 
B)  coma 
C)  dust tail 
D)  gas tail 
E)  chondrule 
A)  nucleus 
B)  coma 
C)  dust tail 
D)  gas tail 
E)  chondrule A

Question 4

Why don't short-period comets have randomly oriented orbits?

Accepted Answer

A)  Their orbits have been altered by encounters with planets. 
B)  Their orbits are altered by the Sun's gravitational pull. 
C)  Their orbits have been altered by impacts from asteroids. 
D)  Their orbits have been altered by the Lagrange points of Jupiter. 
E)  Their orbits have been altered by solar wind particles from a CME. 
A)  Their orbits have been altered by encounters with planets. 
B)  Their orbits are altered by the Sun's gravitational pull. 
C)  Their orbits have been altered by impacts from asteroids. 
D)  Their orbits have been altered by the Lagrange points of Jupiter. 
E)  Their orbits have been altered by solar wind particles from a CME.

Question 5

Comets are solid objects.

Accepted Answer

A) True 
 B)False

Question 6

Differentiate the S-, C- and M-type asteroids.

Accepted Answer

C-type asteroids have albedos less than

Question 7

Most meteors come from pieces of comets.

Accepted Answer

A) True 
 B)False

Question 8

What is so special about the carbonaceous chondrites?

Accepted Answer

A)  rich in hydrogen and helium 
B)  rich in organic compounds 
C)  rich in nitrogen 
D)  rich in oxygen 
E)  rich in rare metals, such as gold 
A)  rich in hydrogen and helium 
B)  rich in organic compounds 
C)  rich in nitrogen 
D)  rich in oxygen 
E)  rich in rare metals, such as gold

Question 9

What do we learn by studying chondrites?

Accepted Answer

A)  Earth's early composition 
B)  the history of comets from the Oort cloud 
C)  the different formations of the Terrestrial and Jovian planets 
D)  the steps in planetary differentiation 
E)  the conditions and processes from the early days of the solar nebula 
A)  Earth's early composition 
B)  the history of comets from the Oort cloud 
C)  the different formations of the Terrestrial and Jovian planets 
D)  the steps in planetary differentiation 
E)  the conditions and processes from the early days of the solar nebula

Question 10

Which type of asteroid is classified to be dark as coal and probably carbonaceous?

Accepted Answer

A)  C-type 
B)  F-type 
C)  M-type 
D)  S-type 
E)  V-type 
A)  C-type 
B)  F-type 
C)  M-type 
D)  S-type 
E)  V-type

Question 11

Earth is hit about once a week by meter-size asteroids.

Accepted Answer

A) True 
 B)False

Question 12

Sequence the events in the origination of different types of meteorites.

Accepted Answer

Meteorites are fragments of parent bodie

Question 13

Once an object strikes Earth's surface, it is called a "meteor".

Accepted Answer

A) True 
 B)False

Question 14

Match between columns
                        Premises: sections of asteroid belt orbits that are nearly preoccupied caused by orbital resonances with Jupiter
asteroids with orbits that carry them into the inner Solar System
objects with orbits between, or crossing, orbits of the Jovian planets
a spherical cloud of icy bodies extending 10,000 to 100,000 AU from the Sun
chondrites rich in water, other volatiles and organic compounds
the head of a comet
impact crater likely the evidence for the extinction of dinosaurs
chondrites with calcium-aluminum-rich inclusions
stony meteorites lacking chondrules and volatiles
planetary objects caught in Jupiter's Lagrange points

Accepted Answer

The Answer of Oort cloud and Kirkwood gaps and Chicxulub is...

Question 15

Why is it important to look closely at the bands of the interior of a meteorite?

Accepted Answer

When iron meteorites are sliced open, po

Question 16

What do the size and shape of Widmanstätten patters indicate?

Accepted Answer

A)  the age of the meteorite 
B)  that the molten metal of the meteorite cooled very slowly 
C)  the metallic content of the core of the meteorite 
D)  the origination of the meteorite 
E)  the number of organic compounds found within the meteorite 
A)  the age of the meteorite 
B)  that the molten metal of the meteorite cooled very slowly 
C)  the metallic content of the core of the meteorite 
D)  the origination of the meteorite 
E)  the number of organic compounds found within the meteorite

Question 17

Where are S-type asteroids typically found in the Solar System?

Accepted Answer

A)  in the Kuiper belt 
B)  the inner asteroid belt 
C)  the outer asteroid belt 
D)  at the Lagrange points of Jupiter 
E)  near Earth 
A)  in the Kuiper belt 
B)  the inner asteroid belt 
C)  the outer asteroid belt 
D)  at the Lagrange points of Jupiter 
E)  near Earth

Question 18

Nonbelt asteroids can become trapped in the _______________ along Jupiter's orbit.

Accepted Answer

The answer of Nonbelt asteroids can become trapped in the...

Question 19

_______________ are comets that come very close to the Sun.

Accepted Answer

The answer of _______________ are comets that come very close...

Question 20

Why is it easier to find an iron meteorite on the ground that it is to witness one fall?

Accepted Answer

Iron meteorites make up 66 percent of fi

Exam 25: Meteorites Asteroids and Comets

What type of celestial bodies are found within the Oort cloud?

What space mission has collected data on Vesta, with its next destination to be Ceres?

The ____ of a comet is a lump of fragile, porous material containing ices of water, carbon dioxide, and ammonia.

Why don't short-period comets have randomly oriented orbits?

Comets are solid objects.

Differentiate the S-, C- and M-type asteroids.

Most meteors come from pieces of comets.

What is so special about the carbonaceous chondrites?

What do we learn by studying chondrites?

Which type of asteroid is classified to be dark as coal and probably carbonaceous?

Earth is hit about once a week by meter-size asteroids.

Sequence the events in the origination of different types of meteorites.

Once an object strikes Earth's surface, it is called a "meteor".

Why is it important to look closely at the bands of the interior of a meteorite?

What do the size and shape of Widmanstätten patters indicate?

Where are S-type asteroids typically found in the Solar System?

Nonbelt asteroids can become trapped in the _______________ along Jupiter's orbit.

_______________ are comets that come very close to the Sun.

Why is it easier to find an iron meteorite on the ground that it is to witness one fall?

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A Users Guide to the Sky

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Origins of Modern Astronomy

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Modern Cosmology

Origin of the Solar System and Extrasolar Planets

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