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WAVES Vocabulary Map

WAVES Vocabulary Map. 1. wave: any disturbance that transfers energy through matter or space. 2 . medium: the material through which waves can travel (solid, liquid, or gas). 3 . vacuum: empty space (area where there is no matter) (bell jar).

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WAVES Vocabulary Map

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  1. WAVESVocabulary Map

  2. 1. wave: any disturbance that transfers energy through matter or space

  3. 2. medium: the material through which waves can travel (solid, liquid, or gas)

  4. 3. vacuum: empty space (area where there is no matter) (bell jar)

  5. 4. mechanical wave: a wave that needs a medium to travel (ex. sound wave) Sound waves in a solid and a gas

  6. 7. transverse wave: a wave that transfers energy in a direction that is perpendicular to its medium Direction of energy transfer (wave) Direction of energy transfer (wave) crest crest Movement Of molecules trough trough See a transverse wave in action

  7. 6. longitudinal wave: a wave in which the particles vibrate back and forth along the path that the wave moves (parallel) See a longitudinal wave in action

  8. 5. electromagnetic wave: (p. 632) waves that can travel through empty space or matter and consist of changing electric and magnetic fields

  9. 8. amplitude: a measure of a wave’s height from “rest” to crest (or “rest” to trough) Lower amplitude= less energy Higher amplitude= more energy Amplitude demo

  10. 9. wavelength: distance between two crests or compressions (or two troughs or rarefactions) in a wave

  11. 10. frequency: the number of crests produced in a given amount of time. Measured in hertz (Hz). Low frequency- Low energy Medium frequency- Medium energy High frequency- High energy Lower pitch- Ex. Male voices, tubas, elephants Higher pitch- Ex. Female voices, flutes, birds

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