Question 1

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 2

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

Accepted Answer

Apollo-Amo

Question 3

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

Accepted Answer

The distribution of asteroids in the bel

Question 4

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 5

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 6

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

Accepted Answer

A) True 
 B)False

Question 7

Comets are solid objects.

Accepted Answer

A) True 
 B)False

Question 8

Asteroid 2004 MN4 is predicted to strike Earth in 2029.

Accepted Answer

A) True 
 B)False

Question 9

Most asteroids are very regular in shape with bright surfaces.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

The Answer of Centaurs and achondrites and coma and Oort is...

Question 11

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 12

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 13

Which characteristics of asteroids are used to classify them?

Accepted Answer

albedos (reflected b

Question 14

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 15

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

Question 16

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 17

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

Accepted Answer

C-type asteroids have albedos less than

Question 18

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 19

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 20

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

Exam 25: Meteorites Asteroids and Comets

What kind of asteroid crosses into Earth's orbit?

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

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

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

Which statement is true about asteroids?

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

Comets are solid objects.

Asteroid 2004 MN4 is predicted to strike Earth in 2029.

Most asteroids are very regular in shape with bright surfaces.

What do CAIs include?

What do scientists believe to have caused the Tunguska event?

Which characteristics of asteroids are used to classify them?

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

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

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

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

In what type of meteorites are Widmanstätten patterns found?

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

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

Here and Now

A Users Guide to the Sky

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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

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Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

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