Why is sound wave called a longitudinal wave?

Answer 

In longitudinal waves, particles of wave move in direction of propagation of waves.

In a sound wave, the particles of the medium vibrate back and forth in the same direction of the disturbance.

Therefore, sound wave is called a longitudinal wave.

  1. Class 9
  2. Chapter 12 Class 9 - Sound

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.