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Type: Multiple-Choice
Category: Waves and Sound
Level: Grade 8
Tags: NGSS PS4.A
Author: HTAdmin
Created: 2 years ago

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Waves and Sound Question

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Grade 8 Waves and Sound

What happens when the speaker cone moves in a forward direction?
  1. Rarefaction occurs
  2. No change in air particles
  3. Compression occurs
  4. Vacuum is created