Exam-style question
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Describe how sound waves can be classified as longitudinal waves.
Model answer
What a good answer should say
- Sound waves are classified as longitudinal waves because the particles of the medium vibrate back and forth in the same direction as the wave travels, creating areas of compression and rarefaction.
Explanation
Why this works
This answer effectively explains the nature of sound waves, linking their behavior to the characteristics of longitudinal waves. The question assesses the student's ability to apply wave-type distinctions specifically to sound.
Common mistake
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