Question 1

A meteorite that is discovered on or in the ground, but not seen to fall, is called a(n) _______________.

Accepted Answer

The answer of A meteorite that is discovered on or...

Question 2

About how far is the Oort cloud from the Sun?

Accepted Answer

A)  3 to 5 AU 
B)  45 to 60 AU 
C)  100 to 1000 AU 
D)  10,000 to 100,000 AU 
E)  4.6 billion AU 
A)  3 to 5 AU 
B)  45 to 60 AU 
C)  100 to 1000 AU 
D)  10,000 to 100,000 AU 
E)  4.6 billion AU

Question 3

Which type of asteroid is classified as rocky, bright, and reddish?

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 4

What do astronomers believe asteroids are remnants of and why?

Accepted Answer

Astronomers have evidence that the aster

Question 5

Stony meteorites called _______________ tend to be rock with a composition similar to Earth's basalts with no volatiles.

Accepted Answer

The answer of Stony meteorites called _______________ tend to be...

Question 6

Which comet hit Jupiter in 1994?

Accepted Answer

A)  Comet Tempel 1 
B)  Comet Kohoutek 
C)  Comet Hale-Bopp 
D)  Comet Halley 
E)  Comet Shoemaker-Levy 9 
A)  Comet Tempel 1 
B)  Comet Kohoutek 
C)  Comet Hale-Bopp 
D)  Comet Halley 
E)  Comet Shoemaker-Levy 9

Question 7

What are Sun grazers?

Accepted Answer

A)  asteroids that impact the Sun 
B)  meteors that impact the Sun 
C)  any celestial body that orbits the Sun 
D)  asteroids that come in close proximity to the Sun 
E)  comets that come in close proximity to the Sun 
A)  asteroids that impact the Sun 
B)  meteors that impact the Sun 
C)  any celestial body that orbits the Sun 
D)  asteroids that come in close proximity to the Sun 
E)  comets that come in close proximity to the Sun

Question 8

Why is it easier to locate meteorites in Antarctica than anywhere else on Earth?

Accepted Answer

A)  Antarctica is an easy location for humans to access. 
B)  More scientists are in the area to find meteorites. 
C)  When meteorites land, they melt a small crater on the ice. 
D)  Meteorites are easy to detect on top of the ice where there are no Earth rocks. 
E)  Meteorites fall most often through the ozone hole above the South Pole. 
A)  Antarctica is an easy location for humans to access. 
B)  More scientists are in the area to find meteorites. 
C)  When meteorites land, they melt a small crater on the ice. 
D)  Meteorites are easy to detect on top of the ice where there are no Earth rocks. 
E)  Meteorites fall most often through the ozone hole above the South Pole.

Question 9

A Trojan asteroid is caught within the Lagrange points of which planet?

Accepted Answer

A)  Venus 
B)  Earth 
C)  Mars 
D)  Jupiter 
E)  Neptune 
A)  Venus 
B)  Earth 
C)  Mars 
D)  Jupiter 
E)  Neptune

Question 10

Where on Earth is the impact crater that scientists believe caused the extinction of dinosaurs?

Accepted Answer

A)  Flagstaff, Arizona 
B)  Chicxulub, Mexico 
C)  Aricebo, Puerto Rico 
D)  Mauna Kea, Hawaii 
E)  Antarctica 
A)  Flagstaff, Arizona 
B)  Chicxulub, Mexico 
C)  Aricebo, Puerto Rico 
D)  Mauna Kea, Hawaii 
E)  Antarctica

Question 11

On any clear night, you can see 3 to 15 meteors per hour.

Accepted Answer

A) True 
 B)False

Question 12

Comet dust particles that later encounter Earth are seen as meteors.

Accepted Answer

A) True 
 B)False

Question 13

Asteroid 2004 MN4 is predicted to strike Earth in 2029.

Accepted Answer

A) True 
 B)False

Question 14

When you document the time and place of a meteorite as it streams through the atmosphere, it is considered a(n) ____.

Accepted Answer

A)  fall 
B)  find 
C)  meteoroid 
D)  chondrite 
E)  impactor 
A)  fall 
B)  find 
C)  meteoroid 
D)  chondrite 
E)  impactor

Question 15

Are comets common?  Explain why or why not.

Accepted Answer

Yes. Faint comets are common; several do

Question 16

What are the most common type of meteorite?

Accepted Answer

A)  chondrites 
B)  chondrules 
C)  iron meteorites 
D)  carbonaceous chondrites 
E)  calcium-rich carbonites 
A)  chondrites 
B)  chondrules 
C)  iron meteorites 
D)  carbonaceous chondrites 
E)  calcium-rich carbonites

Question 17

In what type of meteorites are Widmanstätten patterns found?

Accepted Answer

A)  stony 
B)  iron 
C)  stony-iron 
D)  carbonaceous 
E)  centaur 
A)  stony 
B)  iron 
C)  stony-iron 
D)  carbonaceous 
E)  centaur

Question 18

Most asteroids are very regular in shape with bright surfaces.

Accepted Answer

A) True 
 B)False

Question 19

Some astronomers speculate there are as many Trojan asteroids around Jupiter as asteroids in the asteroid belt.

Accepted Answer

A) True 
 B)False

Question 20

Orbits almost free of asteroids within the asteroid belt are called _______________.

Accepted Answer

The answer of Orbits almost free of asteroids within the...

Exam 25: Meteorites Asteroids and Comets

A meteorite that is discovered on or in the ground, but not seen to fall, is called a(n) _______________.

About how far is the Oort cloud from the Sun?

Which type of asteroid is classified as rocky, bright, and reddish?

What do astronomers believe asteroids are remnants of and why?

Stony meteorites called _______________ tend to be rock with a composition similar to Earth's basalts with no volatiles.

Which comet hit Jupiter in 1994?

What are Sun grazers?

Why is it easier to locate meteorites in Antarctica than anywhere else on Earth?

A Trojan asteroid is caught within the Lagrange points of which planet?

Where on Earth is the impact crater that scientists believe caused the extinction of dinosaurs?

On any clear night, you can see 3 to 15 meteors per hour.

Comet dust particles that later encounter Earth are seen as meteors.

Asteroid 2004 MN4 is predicted to strike Earth in 2029.

When you document the time and place of a meteorite as it streams through the atmosphere, it is considered a(n) ____.

Are comets common? Explain why or why not.

What are the most common type of meteorite?

In what type of meteorites are Widmanstätten patterns found?

Most asteroids are very regular in shape with bright surfaces.

Some astronomers speculate there are as many Trojan asteroids around Jupiter as asteroids in the asteroid belt.

Orbits almost free of asteroids within the asteroid belt are called _______________.

Here and Now

A Users Guide to the Sky

Moon Phases and Eclipses

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Astrobiology

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