Sound Energy

• Sound energy


  The energy produced by the vibrations of objects
• Sound production


  1. Vibrations create sound

  2. Sound moves through a medium such as air or water

  3. Sound waves reach your ear canal

  4. Sound moves your eardrum

  5. Sound is translated into sounds you can understand by the brain
• Properties of Sound


  • Intensity
  • Volume
  • Pitch
  • Timbre
• Intensity


  The amplitude of a sound as perceived by the ear as loudness
• Volume


  The sound pressure produced by the vibrations of an object. The higher the pressure, the louder the sound. Measured in decibels (dB)
• Pitch


  • High notes are produced by fast vibrations, low notes by slow vibrations
• Timbre


  The shape of the sound waves. The smoother the shape, the more pleasing the sound
• Sound is a means of communication among animals
• Bats emit high-pitched sound to detect obstacles and prey through echolocation
• Reflection of sound is called an echo
• Humans communicate through speech and body language
• Sounds are used as warning signals
• Pleasant sounds and music are a form of art, relaxation, and give a feeling of happiness
• Sound vibrations are utilized in ultrasounds to verify the existence of tumors and other substances in the body
• Sonication can be used to kill bacteria from implants
• Sonar is used to locate hazards to navigation, search for objects on the sea floor, and detect noise from marine objects and marine animals
• Sound


  A form of energy produced through vibrations
• Echo


  A reflection of sound
• Sonar (Sound Navigation And Ranging)


  Used to locate hazards to navigation, search for objects in the sea floor, detect noise from objects and animals