If We Could Watch Spiral Arms from a Telescope Situated

question 93

Multiple Choice

If we could watch spiral arms from a telescope situated above the Milky Way over 500 million years,what would we see happen?

• A)The spiral arms will seem to "wind up," to wrap more and more tightly around the center of the Galaxy.
• B)The spiral arms will eventually dissipate and fade away,since they are a temporary phenomenon that should only last for a million years or so.
• C)Stars will move through the spiral arms,bunching up closer as they pass through.Young hot stars will form and die within the arms before having a chance to move out.
• D)The spiral arms will eventually unwind,as centripetal forces send the stars flying outwards into intergalactic space.

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Definitions:

Situational Pressures

The external forces or social situations that influence an individual's behavior, decision-making process, or feelings, often leading to changed or adapted behavior to fit the circumstance.

Observers

Individuals who watch or take notice of events or behaviors, often for the purpose of recording information or making judgments.

Fundamental Attribution Error

The tendency to attribute others' actions to their character or personality while underestimating situational influences.

Defensive Attribution

A cognitive bias that leads individuals to attribute more blame to victims of misfortune than is warranted, often to believe that such events would not happen to themselves.