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Compression or rarefaction?

Exercise and reference answers

Items
  1. Item
    Density is higher
    Category
    Compression
  2. Item
    Piston moves ahead
    Category
    Compression
  3. Item
    Particles crowd in
    Category
    Compression
  4. Item
    Density is lower
    Category
    Rarefaction
  5. Item
    Piston moves back
    Category
    Rarefaction
  6. Item
    Particles spread
    Category
    Rarefaction
Categories
  1. Item
    Compression
  2. Item
    Rarefaction
Instructions
Tap a description, then tap the part of the sound wave it names.

Explanation

_Source: syllabus Science Sound, 10.2 Propagation of Sound_
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