Interstellar medium/Quiz

Interstellar medium is a lecture about an entity that exists between and around stars. It is a mini-lecture for a quiz section as part of the radiation astronomy course on the principles of radiation astronomy.

You are free to take this quiz based on interstellar medium 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

Point added for a correct answer:
Points for an incorrect answer:
Ignore the questions' coefficients:

1 A NASA Hubble image of the Ring Nebula contains which of the following?

	very hot helium blue
	ionized oxygen emitting green
	red light from ionized nitrogen
	oxygen forbidden line emission
	Hα
	a forbidden line of sulfur

2 Yes or No, The amino acid glycine may have been discovered in the ISM.

	Yes
	No

3 Which of the following is not a studied characteristic of astrochemistry?

	interstellar atoms
	interaction of radiation with molecules
	nucleosynthesis
	organics of interstellar origin
	interstellar precursors

4 True or False, Black patches of space in certain areas encompassing a star formation are not dark nebulae but actually vast holes of empty space.

	TRUE
	FALSE

5 Which of the following is not a characteristic of super soft X-radiation?

	electromagnetic radiation
	ionizing radiation
	usually hidden by interstellar absorption in the galactic disk
	readily evident in external galaxies
	have energies in the 0.09 to 2.5 keV range

6 True or False, By comparing astronomical observations with laboratory measurements, astrochemists can infer the elemental abundances, chemical composition, and temperatures of stars and interstellar clouds.

	TRUE
	FALSE

7 Complete the text:

The interstellar medium is the gas and

dust that pervade

space and is the matter that exists between the

within a

. It blends smoothly into the surrounding

medium.

8 True or False, The energy that occupies the same volume as the interstellar medium in the form of electromagnetic radiation is the interstellar radiation field.

	TRUE
	FALSE

9 Intragalactic super soft X-ray sources may be heavily reddened by?

10 True or False, The interstellar medium consists of an extremely dilute (by terrestrial standards) mixture of ions, atoms, molecules, larger dust grains, cosmic rays, and (galactic) magnetic fields.

	TRUE
	FALSE

11 Which phenomenon 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

12 True or False, The first gamma-ray telescope carried into orbit, on the Explorer 11 satellite in 1961, picked up fewer than 100 cosmic gamma-ray photons.

	TRUE
	FALSE

13 The point where the interstellar medium and solar wind pressures balance is called the

14 True or False, A dimming of light from stars due to absorption and scattering from dust in the interstellar medium is called interstellar extinction.

	TRUE
	FALSE

15 That part of outer space between planets and their star(s) is called?

16 True or False, The planetary nebula NGC 6543 has large concentrations of hydrogen, oxygen and ionized nitrogen.

	TRUE
	FALSE

17 WNM is an acronym for what?

18 True or False, The Hβ emission line does not appear when the F492M filter is used on the Hubble Space Telescope because its wavelength is 486.1 nm.