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sound

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  • Particles in Compressions are __________
    close together
  • Particles in Rarefactions are ___________
    further apart
  • The speed of sound ___________ as the temperature increases
    increases
  • _____________ are More dense region, while _______ are less dense regions
    Compressions, Rarefactions
  • High amplitude sound waves are _________
    loud
  • ___________uses ultrasound to detect objects underwater
    Sonar
  • Sound waves with a frequency greater than _________ are called as ultrasound
    20 000 Hz
  • sound travels faster in _____than in ____and faster in liquids than in ____.
    solids -liquids -gases
  • Low amplitude sound waves are _______
    quiet
  • High _______sound waves are high pitched
    frequency
  • Sound waves are a type of ______
    longitudinal waves
  • The _________of a sound wave is related to the loudness of the sound:
    amplitude
  • Humans can hear sounds between about_____ frequency
    20 Hz and 20 000 Hz
  • ___________ sound waves are low pitched
    Low frequency
  • Speed of sound =
    distance/time in one direction
  • The speed of sound in air is approximately
    330–350 m/s
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