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Introduction to Waves

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  • The ability to do work or cause change
    energy
  • The distance an object travels per unit of time; how "fast" it moves
    speed
  • highest point of a transverse wave
    crest
  • waves that do not need a medium to travel through (ex: visible light waves)
    electromagnetic waves
  • part in a longitudinal wave where the particles of the medium are far apart
    rarefaction
  • waves that move parallel to the direction in which the waves travel
    Longitudinal waves
  • the bouncing back of a wave when it hits a surface through which it cannot pass.
    reflection
  • A repeated back-and-forth or up-and-down motion
    vibration
  • part in a longitudinal wave where the particles of the medium are close together
    compression
  • lowest point of a transverse wave
    trough
  • waves that require or need to travel through a medium (ex: sound waves)
    Mechanical waves
  • The bending of a wave as it moves around an obstacle or passes through a narrow opening
    diffraction
  • waves that move at right angles to the direction in which the waves travel
    transverse waves
  • the interaction between waves that meet
    interference
  • the number of complete waves that pass a given point in a certain amount of time
    frequency
  • The ability to do work or cause change
    energy
  • tells the amount of energy carried by a wave; how "loud" it is
    amplitude
  • Unit of measurement for frequency Hint: abbreviation Hz
    Hertz
  • the material through which a mechanical wave travels (solid, liquid, gas)
    medium
  • The bending of a wave as it passes at an angle from one medium to another
    refraction
  • a disturbance that transfers energy from place to place
    waves
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