A Police Car Has an 800-Hz Siren

question 59

Multiple Choice

A police car has an 800-Hz siren.It is traveling at 35.0 m/s on a day when the speed of sound through air is 340 m/s.The car approaches and passes an observer who is standing along the roadside.What change of frequency does the observer hear?

• A)0 Hz
• B)82 HZ
• C)166 Hz
• D)249 Hz

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Definitions:

Retrieval Cues

Stimuli or prompts that facilitate the recall of information stored in memory.

Working Memory

A cognitive system responsible for temporarily holding information available for processing and manipulation.

Memory Processing

The method by which the brain encodes, stores, and retrieves information, allowing for learning and retention of experiences.

Free Recall

A memory test in which a person must retrieve information learned earlier, not in any specific order.