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Discovering the Universe

Physics & Astronomy

Quiz 13 :

The Lives of Stars From Birth Through Middle Age

Quiz 13 :

The Lives of Stars From Birth Through Middle Age

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What is the second MOST abundant element in the interstellar medium (after hydrogen)?
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A

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What are the two MOST abundant elements in the interstellar medium?
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C

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The space between stars is known to contain
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D

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Which of these objects is NOT an abundant physical component of the interstellar medium?
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Which of these methods has NOT yet been used to study the material of the interstellar medium?
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Which of these molecules is likely to be the MOST common in interstellar space?
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Most interstellar matter is too cold to be observed optically. In which part of the electromagnetic spectrum might its radiation be detected?
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The light from a distant cloud of gas and dust looks distinctly red to the unaided eye. When a spectrum is taken, the red color is found to come from a single, bright spectral line. Thus, the red color in this situation is due to
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What is the MOST abundant element in the interstellar medium?
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To detect most interstellar material requires
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The light from a distant cloud of gas and dust looks distinctly red to the unaided eye. When a spectrum is taken, the short wavelengths are all found to be dimmed in intensity compared with the longer wavelengths, which are all more intense. Thus, the red color in this situation is due to
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The Pleiades cluster consists of a number of bright stars wrapped in a cloud of gas and dust that appears blue. This cluster is an example of
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The light from a distant cloud of gas and dust looks distinctly red to the naked eye. When a spectrum is taken, it is found that many wavelengths that would normally be expected to be in the middle of the spectrum have been shifted into the long-wavelength end of the spectrum. Thus, the red color in this situation is due to
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How have complex molecules such as formaldehyde (H2CO) been detected in interstellar clouds?
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What do a reflection nebula surrounding a star and Earth's atmosphere have in common?
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Which of these common molecules found in interstellar space contains nitrogen atoms but no oxygen?
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Most interstellar matter is too cold to be observed optically. Its radiation is predominantly emitted at longer wavelengths, such as infrared and radio. This behavior is an example of
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A star cluster at a great distance from the Sun, but inside the Milky Way, appears to be fainter than a similar star cluster at a closer distance. Part of this is the expected result from the inverse square law, but the distant cluster will also appear fainter than expected by distance alone because
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The apparent reddening of light from stars after its passage through the interstellar medium is caused by
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Interstellar extinction is the
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