Radiation astronomy/Fieries/Quiz

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A bolide is a very bright meteor of an apparent magnitude of −14 or brighter. Credit: Thomas Grau.

Fiery-meteor radiation astronomy is a lecture offered by the radiation astronomy department. It is included in the {{radiation astronomy resources}} template.

You are free to take this quiz based on fiery meteors at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the {{radiation astronomy resources}} template. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit]







  

1

True or False, An oxygen isotope discrepancy was noted forty years ago in a stony meteorite that exploded over Pueblito de Allende, Mexico.

TRUE
FALSE

2

Which of the following are radiation astronomy phenomena associated with comets?

low albedo
relatively featureless
cyanogen detected
neutron emission
rotationally asymmetric
meteor emission
changes in its tail

3

True or False, There are green or green mineral containing asteroids.

TRUE
FALSE

4

Moldavite is a mineral that may be associated with what green astronomy phenomenon?

predicting the end of the Earth
determine the accuracy of local computers
meteorite impacts
demonstrating that Venus was once a comet
predict when currently dormant volcanoes will erupt
green fireballs

5

Yes or No, A comet is a small solar system body that has a solid icy nucleus.

Yes
No

6

Complete the text:

The majority of known asteroids orbit the Sun between the orbits of

and

.

7

True or False, The International Astronomical Union defines a fireball as a meteor brighter than any of the planets (magnitude −4 or greater).

TRUE
FALSE

8

Phenomena associated with some meteorites?

have a gaseous surface
long nickel-iron crystals
octahedrite
kamacite
taenite
plessite

9

Yes or No, A typical comet nucleus has an albedo of 0.04.

Yes
No

10

A thin-section of a meteorite that may be analyzed has which of the following?

a great many light gray and dark gray chondrules present
large grain cross sections making sizing easy
an available sizing or magnification marker
independent verification as a meteorite
correctable diameters and relative abundances
optical conditions

11

True or False, The NASA All-sky Fireball Network is a network of cameras set up by the NASA Meteoroid Environment Office (MEO) with the goal of observing meteors brighter than the planet Venus, which are called fireballs.

TRUE
FALSE

12

A natural rocky source of chemicals from the sky to the ground may originate from what astronomical source?

Jupiter
the solar wind
the diffuse X-ray background
Mount Redoubt in Alaska
the asteroid belt
the International Space Station

13

Yes or No, A fireball reaching magnitude −14 or brighter is called a bolide.

Yes
No

14

Complete the text:

Match up the form or type of quartz with the effect:
alpha quartz - A
coesite - B
cristobalite - C
stishovite - D
seifertite - E
tridymite - F
10 GPa and above 1200°C

.
2-3 gigapascals and 700°C

.
22-460°C tabular crystals

.
trigonal tectosilicate

.
35 GPa to 40 GPa orthorhombic

1470°C cubic or tetragonal form

.

15

True or False, A fireball reaching an magnitude −17 or brighter is called a superbolide.

TRUE
FALSE

16

Meteorites found on Earth may be from which of the following?

Saturn
Mercury
the Moon
the asteroid belt
Jupiter
Mars

17

True or False, The visible path of a meteoroid that has entered the Earth's atmosphere is called a meteorid.

TRUE
FALSE

18

Considering that many rock types bear a striking resemblance to meteorites which are the one or few ways to differentiate a meteorite from a terrestrial rock?

chondrules
the Ca/Si ratio
the Al/Si ratio
enstatite rather than diopside
oxygen isotope ratios
observed orbit and fall with verified recovery

19

True or False, A metallic or stony object that is the remains of a meteor is called a meteoroid.

TRUE
FALSE

20

Yes or No, A map released by NASA's Near Earth Object (NEO) Program reveals that small asteroids frequently enter and disintegrate in the Earth's atmosphere with random distribution around the globe.

Yes
No


Hypotheses[edit]

  1. Meteorites should also be coming into Earth from other large rocky objects such as Mercury, asteroids, and the satellites of the gas giants.

See also[edit]

External links[edit]