The Hubble Law Is One of the Most Important Relations

question 70

Multiple Choice

The Hubble law is one of the most important relations in modern astronomy because it ____.

• A) allows astronomers to measure the distance to very distant galaxies using only their spectrum
• B) explains the difference in the types of galaxies seen in different directions
• C) relates the rotation curve of a galaxy to the amount of dark matter it contains
• D) connects the mass of a spiral galaxy's bulge to the size of its central black hole
• E) determines the mass of a cluster using the rotation period of the galaxies it contains

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Definitions:

Peripheral-Route Processing

Type of information processing that involves attending to factors not involved in the message, such as the appearance of the source of the message, the length of the message, and other noncontent factors.

Central-Route Processing

Type of information processing that involves attending to the content of the message itself.

Cognitive Component

An aspect of our mental processes and attitudes, involving beliefs, thoughts, and awareness that contribute to our perceptions and reactions.

Informational

Related to the provision or exchange of facts or data, often used for educational, advisory, or decision-making purposes.