Radiation astronomy/Atomics/Quiz

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Methane is found in the Martian atmosphere. Credit: NASA.

Atomic radiation astronomy is a lecture as part of the radiation astronomy department course on the principles of radiation astronomy.

You are free to take this quiz based on [Radiation astronomy/Atomics|Atomic radiation astronomy]] 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 {{principles of radiation astronomy}} 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 | edit source]


1 Complete the text:

Match up the item letter with each of the possibilities below:
Meteors - A
Cosmic rays - B
Neutrons - C
Protons - D
Electrons - E
Positrons - F
Gamma rays - G
Superluminals - H
X-ray jets

the index of refraction is often greater than 1 just below a resonance frequency

iron, nickel, cobalt, and traces of iridium

Sagittarius X-1

escape from a typical hard low-mass X-ray binary

collisions with argon atoms

X-rays are emitted as they slow down

Henry Moseley using X-ray spectra


2 True or False, The disparity between the atomic number of an atom and its atomic mass is explained by the existence of the neutrino.


3 An argon-37 atom is converted by a neutrino by the charged current interaction from what atom?

4 Which of the following may be characteristic of magnetohydrodynamics?

driven by current gradients
neutral atoms
closed tube loops
twisted flux
open field lines
synchrotron radiation

5 True or False, The fundamental unit was over 1000 times smaller than an atom, suggesting the subatomic particles called delta rays.


6 The elastic collisions between the projectile ion and atoms in the detector involving the interaction of the ion with the nuclei in the detector material?

7 True or False, The density distributions of a solid or unit of condensed matter involving more than atoms or molecules is not discrete like a spectral density but continuous.


8 Which of the following are characteristic of positronium?

an exotic atom
a nucleus of neutronium
a decay product of a neutron
a weak interaction
an eletromagnetic interaction
a center of mass

9 Complete the text:

Match up the radiation type with the satellite:
meteor - A
cosmic ray - B
neutral atoms - C
neutron - D
proton - E
electron - F
positron - G
neutrino - H
gamma ray - I
X-ray - J
ultraviolet - K
optical - L
visual - M
violet - N
blue - O
cyan - P
green - Q
yellow - R
orange - S
red - T
infrared - U
submillimeter - V
microwave - W
radio - X
radar - Y
superluminal - Z
JUNO - PIA13746.jpg

RAE B.jpg

Chandra-spacecraft labeled-en.jpg

Alpha Magnetic Spectrometer - 02.jpg


GLAST on the payload attach fitting.jpg




STEREO spacecraft.gif


Aquarius SAC-D satellite.png

STS-134 International Space Station after undocking.jpg

Micrometeoroid hole.jpg



FUSE prelaunch crop.jpg

Swas 1.jpg

2001 mars odyssey wizja.jpg

Spitzer space telescope pre-launch.jpg

TERRA am1.jpg

Galileo Energetic Particles Detector.jpg


Pioneer 10 on its kickmotor.jpg

Mariner 10.jpg



10 True or False, A small amount of aluminum-26 is produced by collisions of magnesium atoms with cosmic-ray protons.


11 Mathematical phenomena associated with an exponential decrease are

a positive exponent
a negative absorption coefficient
the number of atoms per cm3
the initial absorption of a monolayer
the absorption cross section in cm2
thinness of material

12 Complete the text:


series is the series of transitions and resulting ultraviolet emission lines of the

atoms as an electron goes from a high-energy level to an n =


13 Which of the following are associated with muon astronomy?

high-energy cosmic rays
secondary and tertiary cosmic rays
nuclear interactions between neutrons and quartz
nuclear interactions between muons and calcite
production rates of a few atoms per gram of rock per year
build-up of cosmogenic nuclides through time

14 When plasma is present, what characteristic is readily observed?

the magnetic north pole
neutral neodymium atoms
temperatures below 104 K
solar positron events

Hypotheses[edit | edit source]

  1. More technical questions concerning neutrons and neutron detection safety may be good.

See also[edit | edit source]

External links[edit | edit source]

{{Radiation astronomy resources}}