The Gas Tail of a Comet

question 17

Multiple Choice

The gas tail of a comet

• A)is smooth and featureless with a spectrum identical to that of the Sun.
• B)is present even when the comet is located in the region of the Kuiper belt.
• C)is unaffected by the magnetic field of the Sun.
• D)always points toward the Sun.
• E)is streaked and shows emission lines of ionized atoms.

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Definitions:

Schachter's Two-factor Theory

A psychological theory proposing that emotion comes from physiological arousal and a cognitive label of that arousal.

Autonomic Arousal

The response of the autonomic nervous system to stimuli, usually resulting in physical signs of excitement or stress such as increased heartbeat.

Attraction

A force or influence that draws individuals together, which can be based on physical attributes, personality, similarity, or other factors.

Cannon-Bard Theory

A theory of emotion that argues emotions and physiological responses occur simultaneously.