The Doppler effect for sound describes:

A Change in speed of sound with temperature

B Change in observed frequency due to relative motion between source and observer

C Reflection of sound waves

D Absorption of sound energy

✓ Correct Answer: Option B

Doppler effect: observed frequency increases when source approaches and decreases when it recedes, due to compression/expansion of wavefronts.

💡 Why is B) the correct answer?

The correct answer to the question "The Doppler effect for sound describes:" is Option B: Change in observed frequency due to relative motion between source and observer.

The other options — A) Change in speed of sound with temperature, C) Reflection of sound waves, D) Absorption of sound energy — are incorrect for this MCAT Exam Prep question. As explained above: Doppler effect: observed frequency increases when source approaches and decreases when it recedes, due to compression/expansion of wavefronts.

📚 About This MCAT Exam Prep Practice Question

This 2-level MCAT Exam Prep question from the Chemical & Physical Foundations topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free MCAT Exam Prep practice test or use flashcards for spaced repetition review.

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The Doppler effect for sound describes:

✓ Correct Answer: Option B

📚 About This MCAT Exam Prep Practice Question

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