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waves waves Presentation Transcript

  • Waves Diana Liu and Dan Froehlich
  • Transverse Waves
    • displacement perpendicular to wave motion
  • Longitudinal Waves
    • displacement parallel to wave motion
    View slide
  • Parts of a wave trough crest View slide
  •  
  • Speed of a Wave
    • Velocity -speed at which the wave is traveling
    • Frequency -number of times a wave passes a point per second
    • Wavelength -Length of wave from crest to crest or trough to trough
    Velocity = Frequency x Wavelength
  • Constructive Interference
    • When crests and troughs combine, amplitude increases=bigger waves
  • Destructive Interference When crests and troughs meet, they cancel each other out=smaller waves
  • Water Circulation
  •  
  • Tsunamis are caused by:
    • Earthquakes
    • Landslides
    • volcanoes
  •  
  •  
  •  
  • Ocean Waves
  • REVIEW
    • Fill in the blank.
    • When the particles of the medium are displaced parallel to the direction of the propagation of the wave, it is called the ___________.
    • Water wave
    • Torsal wave
    • Transverse wave
    • Longitudinal wave
    • Ultrasonic wave
    • Which of the following is the definition of amplitude
    • The maximum displacement from the equilibrium position.
    • The total distance traveled by the wave in one full cycle.
    • The energy reflected by a fixed medium. The lowest frequency that produces a standing wave.
    • A rotating wheel.
    • What is a transverse wave?
    • The rate with which the amplitude of the wave pulsates.
    • The disturbance of the particles is in the same direction as the propagation of the wave.
    • A wave of alternating lower and higher pressure.
    • A fraction of the original sound intensity absorbed by the material at some given frequency. The particles of the medium that are displaced perpendicular to the direction of propagation.
    http://library.thinkquest.org/C005705/English/Waves/quiz.htm
  • http://www.antonine-education.co.uk/Physics_A2/Module_4/Topic_4/Quiz_A2_4_4.htm
    • In a wave, the distance between the crest and a trough is:
    •   The equilibrium position
    •   The amplitude
    •   The double amplitude
    •   The wavelength
    • The frequency of a wave is:
    •   The power per unit area of a wave.
    •   The distance between two successive crests
    •   How long a wave takes to pass a point.
    •   The number of waves per second