Radiation/Meteors/Quiz

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1 Quiz
2 Hypotheses
3 See also
4 External links

Quiz

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1 Why is much of the surface of Mars covered with red iron oxide dust when the rocks that compose much of its surface are blue or violet?

	Mars has been systematically bombarded with small iron-nickel meteorites or micrometeorites that oxidize in its atmosphere
	Mars has been frequently bombarded with hematite containing micrometeorites
	asteroid impacts on Mars may have forced iron from near its core into the atmosphere and onto the surface as hematite dust that oxidized
	Mars is like Earth in surface hematite composition, but Earth has much more water
	precipitation from iron-rich water

2 Which of the following is not a radiation phenomenon associated with a comet?

	airglow
	elongated dust particles
	high albedo
	olivine
	Rayleighs
	coronal mass ejection

3 Which of the following are radiation phenomena associated with the apparent liquid-object Earth?

	rain
	snow
	hail
	neutron emission
	polar coronal holes
	meteor emission
	rotation

4 Which of the following are radiation phenomena associated with the Sun as a likely source?

	coronal clouds
	cosmic rays
	neutrinos
	Oh My God type particles
	meteors
	comets
	blue rays

5 Complete the text:

Match up the item letter with each of the cosmogonic possibilities below:

interior models of the giant planets - A

high interest for cosmogony, geophysics and nuclear physics - B

hierarchical accumulation - C

clouds and globular clusters - D

cosmic helium abundance - E

deuterium fusion - F

a large deficiency of light elements - G

after galactic-sized systems had collapsed - H

the motions of hydrogen

formation of luminous quasars

stars with an initial mass less than the solar mass

rotating liquid drops

primordial is less than 26 per cent

a solar mixture of elements dominated by hydrogen and helium gas

around 13 Jupiter masses

smaller rocky objects

6 The charge on a planetary dust particle may change with?

7 Which radiation phenomena are most likely to interfere with observing stars?

	a late-summer rainstorm
	a clear sky
	an approaching dust storm
	below normal temperatures
	a typhoon
	a snow fall
	fog

8 Various gaps and density minima have been observed in the Saturnian

system.

9 Which of the following are characteristic of a binary formed via gravitational fragmentation?

	the local Jeans length
	the local speed of sound
	the mean molecular weight
	the electron neutrino
	the mean particle density
	neutrons

10 Complete the text:

The Moon was formed independently of the Earth and later

, presumably by a

interaction.

11 Yes or No, A hydrometeor is a precipitation product.

	Yes
	No

12 Usually associated with clouds filling the sky, thunder and lightning, wind and what water based meteorites

13 True or False, A lithometeor is a rocky-object meteor.

	TRUE
	FALSE

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

	Saturn
	Mercury
	the Moon
	the asteroid belt
	Jupiter
	Mars
	Earth

15 True or False, A cryometeor is a very large chunk of amber.

	TRUE
	FALSE

16 Complete the text:

An aerometeor is a

unit of air traveling or

through an atmosphere.

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

	TRUE
	FALSE

18 On 19 May 1910, the Earth actually passed through the tail of what comet.

19 True or False, The observations of planetary motion agree with computed orbits to the accuracy of the observations.

	TRUE
	FALSE

20 A cloud at nearly a quarter of the distance to Proxima Centauri is called the

21 True or False, Clouds are a form of radiation because they have a temperature gradient.

	TRUE
	FALSE

22 Which phenomena are associated with the heliosphere?

	a region of space where the interstellar medium is blown away by the solar wind
	a bubble in space
	virtually all the material emanates from the Sun itself
	Voyager 2
	Voyager 1
	the termination shock

23 True or False, The prismoidal method provides a good approximation of the dust emission peak for cold sources.

	TRUE
	FALSE

24 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

25 Yes or No, A new cosmogony predicts that all particles in one stream have the same mineral composition.

	Yes
	No

26 Complete the text:

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

and

27 True or False, Mars may have suffered asteroid impacts.

	TRUE
	FALSE

28 Which of the following are radiation phenomena associated with the gaseous-object Neptune?

	Voyager 2
	blue rays
	clouds
	neutron emission
	polar coronal holes
	meteor emission
	rotation

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

	TRUE
	FALSE

30 Complete the text:

The 0.6 m Tortugas Mountain Observatory is used to monitor the temporal changes in the

cloud deck and equatorial activity on

31 True or False, Mercury may have once been a satellite of Jupiter, or possibly of Saturn.

	TRUE
	FALSE

32 Which of the following is not a characteristic of showers?

	throwing a beam
	meteors
	rain
	snow
	hail

33 True or False, Micrometeoroids have less stable orbits than meteoroids.

	TRUE
	FALSE

34 Which of the following are radiation phenomena associated with the rocky-object Io?

	surface regions reflecting or emitting violet or purple
	an excess brightness at or near the edge
	red regions that may be phosphorus
	neutron emission
	polar coronal holes
	meteor emission
	rotation

35 True or False, To date, all of the reported hypervelocity stars (HVSs), which are believed to be ejected from the Galactic center, are blue.

	TRUE
	FALSE

36 Any natural object radiating through a portion or all of a natural object's atmosphere may be called a what?

37 True or False, Olivine is a silicate mineral that may be detected in cometary coma dust with green astronomy.

	TRUE
	FALSE

38 Observations of comets have benefited greatly from what phenomenon of cyan radiation?

	Cherenkov radiation
	the electric blue glow of lightning
	gas-expansion velocity decreases with increasing heliocentric distance
	methane possesses prominent absorption bands in the visible
	adaptive optics
	the light of the neutral CN-radical