Class 9 Physics Sound Sound propagate through solids liquids gases

Sound can propagate through solids, liquids and gases

  • Sound can propagate through solids, liquids and gases. In fact, it needs a medium to propagate.
  • The matter or substance through which sound propagates is called Medium.
  • Sound can propagate through Solids: The doctor checks us using the stethoscope. He can hear the sound from within our body because sound travels through solids.

  • Sound can propagate through liquids: In fact, this is how aquatic animals communicate with each other.

 

  • Sound can propagate through gases/air: This is the reason why we are able to hear a person standing near us speak. Generally, air is the most common medium for sound propagation.

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