Stars a and B Appear Equally Bright, but Star a Is

question 76

Multiple Choice

Stars A and B appear equally bright, but star A is twice as far away from us as star B. Which of the following is true?

• A) Star A is twice as luminous as star B.
• B) Star A is four times as luminous as star B.
• C) Star B is twice as luminous as star A.
• D) Star B is four times as luminous as star B.
• E) Star A and star B have the same luminosity because they have the same brightness.

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Definitions:

Classical Conditioning

An educational method that develops through the connection between a stimulus in the environment and a stimulus that naturally occurs, resulting in a conditioned response.

Potty-Trained

The process by which a young child learns to use the toilet for urination and defecation voluntarily.

Fear Dentist

Anxiety or fear associated with visiting the dentist, often resulting in avoidance of dental care.

UCS

An acronym for Unconditioned Stimulus, which in classical conditioning theory is an event that naturally and automatically triggers a specific response without previous conditioning.