Question 1

Only about three comets per year plunge into the Sun and are destroyed.

Accepted Answer

A) True 
 B)False

Question 2

Long-period comets originate in the _______________.

Accepted Answer

The answer of Long-period comets originate in the _______________....

Question 3

Armor asteroids cross into the orbit of which planet?

Accepted Answer

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

Question 4

Which statement is true about asteroids?

Accepted Answer

A)  All asteroids are found in the asteroid belt between Mars and Jupiter. 
B)  Asteroids are also called dwarf planets. 
C)  Asteroids have an irregular shape and are battered by impact cratering. 
D)  All asteroids have bright, reflective surfaces. 
E)  Asteroids originated from older moons. 
A)  All asteroids are found in the asteroid belt between Mars and Jupiter. 
B)  Asteroids are also called dwarf planets. 
C)  Asteroids have an irregular shape and are battered by impact cratering. 
D)  All asteroids have bright, reflective surfaces. 
E)  Asteroids originated from older moons.

Question 5

Explain the phenomenon of Kirkwood gaps. Where can they occur?

Accepted Answer

The distribution of asteroids in the bel

Question 6

What do scientists believe to have caused the Tunguska event?

Accepted Answer

A)  a comet 
B)  an iron asteroid 
C)  a stony-iron meteorite 
D)  a stony asteroid 
E)  a carbonaceous chondrite 
A)  a comet 
B)  an iron asteroid 
C)  a stony-iron meteorite 
D)  a stony asteroid 
E)  a carbonaceous chondrite

Question 7

What kind of asteroid crosses into Earth's orbit?

Accepted Answer

A)  Apollo object 
B)  Amor object 
C)  Centaur asteroids 
D)  Kirkwood objects 
E)  Trojan asteroids 
A)  Apollo object 
B)  Amor object 
C)  Centaur asteroids 
D)  Kirkwood objects 
E)  Trojan asteroids

Question 8

Most types of chondrites contain _______________, small bits of glassy rock only a few millimeters across.

Accepted Answer

The answer of Most types of chondrites contain _______________, small...

Question 9

Iron meteorites are easy to recognize because a magnet can stick to them.

Accepted Answer

A) True 
 B)False

Question 10

Eugene Shoemaker proved that the Barringer Crater is the result of an impact because he found _______________ in and around the crater that had been subjected to pressures higher than those produced by a volcano.

Accepted Answer

The answer of Eugene Shoemaker proved that the Barringer Crater...

Question 11

What causes the meteor showers we witness on Earth?

Accepted Answer

A)  Earth passes through comet dust particles. 
B)  Earth passes through remnants of an impacted asteroid. 
C)  Earth passes through the asteroid belt. 
D)  Earth passes through the coma of a comet. 
E)  Earth passes through solar wind particles. 
A)  Earth passes through comet dust particles. 
B)  Earth passes through remnants of an impacted asteroid. 
C)  Earth passes through the asteroid belt. 
D)  Earth passes through the coma of a comet. 
E)  Earth passes through solar wind particles.

Question 12

What is the largest object found between Mars and Jupiter?

Accepted Answer

A)  Comet Halley 
B)  Asteroid Ceres 
C)  Comet Hale-Bopp 
D)  Comet Tempel 
E)  Asteroid Vesta 
A)  Comet Halley 
B)  Asteroid Ceres 
C)  Comet Hale-Bopp 
D)  Comet Tempel 
E)  Asteroid Vesta

Question 13

A ____ is produced by ionized gas carried away from the comet by solar wind.

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

Question 14

_______________ objects are asteroids with orbits that carry them into the inner Solar System.

Accepted Answer

Apollo-Amo

Question 15

What do you think would happen to life on Earth if Earth was hit by a large (1 km or bigger) asteroid or comet?

Accepted Answer

Sixty-five million years ago, at the end

Question 16

What do CAIs include?

Accepted Answer

A)  carbon and aluminum 
B)  carbon and ammonium 
C)  calcium and argon 
D)  chlorine and argon 
E)  calcium and aluminum 
A)  carbon and aluminum 
B)  carbon and ammonium 
C)  calcium and argon 
D)  chlorine and argon 
E)  calcium and aluminum

Question 17

Stony meteorites are common among falls.

Accepted Answer

A) True 
 B)False

Question 18

What kind of asteroid crosses into Mars' orbit?

Accepted Answer

A)  Apollo object 
B)  Amor object 
C)  Centaur asteroids 
D)  Kirkwood objects 
E)  Trojan asteroids 
A)  Apollo object 
B)  Amor object 
C)  Centaur asteroids 
D)  Kirkwood objects 
E)  Trojan asteroids

Question 19

What eventually happens to a comet when its orbit brings it into the inner Solar System?

Accepted Answer

A)  It builds up speed and increases its orbital period. 
B)  It is vaporized by the Sun, becoming inactive rock and dust. 
C)  It is pulled in by the gravitation forces of a Terrestrial planet. 
D)  It is blasted apart by asteroids within the asteroid belt. 
E)  It absorbs more ice and rock from asteroids within the asteroid belt. 
A)  It builds up speed and increases its orbital period. 
B)  It is vaporized by the Sun, becoming inactive rock and dust. 
C)  It is pulled in by the gravitation forces of a Terrestrial planet. 
D)  It is blasted apart by asteroids within the asteroid belt. 
E)  It absorbs more ice and rock from asteroids within the asteroid belt.

Question 20

The best place to search for meteorites on Earth is in parts of _______________.

Accepted Answer

Antarctica

Exam 25: Meteorites Asteroids and Comets

Only about three comets per year plunge into the Sun and are destroyed.

Long-period comets originate in the _______________.

Armor asteroids cross into the orbit of which planet?

Which statement is true about asteroids?

Explain the phenomenon of Kirkwood gaps. Where can they occur?

What do scientists believe to have caused the Tunguska event?

What kind of asteroid crosses into Earth's orbit?

Most types of chondrites contain _______________, small bits of glassy rock only a few millimeters across.

Iron meteorites are easy to recognize because a magnet can stick to them.

Eugene Shoemaker proved that the Barringer Crater is the result of an impact because he found _______________ in and around the crater that had been subjected to pressures higher than those produced by a volcano.

What causes the meteor showers we witness on Earth?

What is the largest object found between Mars and Jupiter?

A ____ is produced by ionized gas carried away from the comet by solar wind.

_______________ objects are asteroids with orbits that carry them into the inner Solar System.

What do you think would happen to life on Earth if Earth was hit by a large (1 km or bigger) asteroid or comet?

What do CAIs include?

Stony meteorites are common among falls.

What kind of asteroid crosses into Mars' orbit?

What eventually happens to a comet when its orbit brings it into the inner Solar System?

The best place to search for meteorites on Earth is in parts of _______________.

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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