The Cause of the Pulsations We See in the Light

question 52

Multiple Choice

The cause of the pulsations we see in the light from neutron stars is

• A) pulsations of its neutrons.
• B) motions of electrons within the star.
• C) the spinning motion of the star.
• D) the in and out pulsations of star's radius, as the star gets rapidly larger and then smaller.
• E) Nonsense-- neutron stars do not pulsate.

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Definitions:

Conditioned Stimulus

A previously neutral stimulus that, after being paired with an unconditioned stimulus, evokes a conditioned response.

Flushing

The process of becoming markedly red in the face and often other areas of the skin, typically as a result of strong emotions, heat, alcohol consumption, or certain medical conditions.

Unconditioned Response

An automatic, reflexive reaction that is elicited by a stimulus without any prior learning or conditioning.

Laid Off

The termination of employment due to the employer's decision often because of economic downturns or company restructuring, rather than the employee's performance.