Exam-style question
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What is the definition of a compression in a longitudinal wave?.
- A.A region of maximum particle displacement
- B.A region where particles are spread apart
- C.A region of minimum particle displacement
- D.A region where particles are close together
Model answer
What a good answer should say
- A region where particles are close together
Explanation
Why this works
In a longitudinal wave, compressions are areas where particles are densely packed together, resulting in increased pressure.
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