In the Early Universe, Why Were Inhomogeneities in the Distribution

question 23

Multiple Choice

In the early universe, why were inhomogeneities in the distribution of normal matter much smaller than the inhomogeneities in the dark matter?

• A) Normal matter is pushed away by supernova explosions.
• B) Magnetic fields smoothed the distribution of charged particles in the normal matter but not in dark matter.
• C) Dark matter particles were more massive and cooled off before normal matter, thus dark matter fluctuations had a longer time over which to grow.
• D) Dark matter was 10 times more massive than normal matter.
• E) Radiation pressure affected normal matter but not dark matter.

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Definitions:

James-Lange

Theory of emotion that suggests physiological arousal precedes the emotional experience, meaning the body's reaction to a stimulus comes first and is then interpreted as an emotion.

Plutchik

Robert Plutchik was a psychologist who proposed the "wheel of emotions," which illustrates the relationships among emotions.

Cannon-Bard

A theory of emotion that argues that physiological arousal and emotional experience occur simultaneously, yet independently.

Self-Actualization

The act of reaching one's full potential and making use of their talents, perceived as a universal desire or requirement.