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Wave Introduction

Wave Introduction. FIZX. What’s a Wave?. A transfer of energy through a repetitive pattern of some sort Most waves involve the repetitive motion of particles (Matter)… … light is the exception. Mechanical Waves. Transverse Wave particles move perpendicular to wave motion

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Wave Introduction

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  1. WaveIntroduction • FIZX

  2. What’s a Wave? • A transfer of energy through a repetitive pattern of some sort • Most waves involve the repetitive motion of particles (Matter)… • …light is the exception.

  3. Mechanical Waves • Transverse • Wave particles move perpendicular to wave motion • http://www.youtube.com/watch?v=UHcse1jJAto • Compressional / Longitudinal • Wave particles move parallel to wave motion • http://www.youtube.com/watch?v=Rbuhdo0AZDU

  4. Transverse Waves • Light • Stringed Instruments • Water • Sports • Earthquake Secondary S-Wave

  5. Longitudinal Waves • Sound • Earthquake Primary P-Wave

  6. Frequency • The number of wavelengths that pass a fixed point each second • Measured in Hertz (Hz)

  7. Period • The amount of time it takes one wavelength to pass a point • Measured in Seconds

  8. Relationship Frequency Increases  Wavelength Decreases

  9. Transverse Wave Parts • Wavelength (λ) • Distance from point to next repeating point on wave • Crest • Part of wave above equilibrium position • Trough • Part of wave below equilibrium position • Amplitude • Distance fr. equilibrium to max. or min. position

  10. Longitudinal Wave Parts • Wavelength (λ) • Distance from pt. to next repeating pt. • Compression • Part of wave where particles are close • Rarefaction • Part of wave where particles are far apart

  11. Wave Speed

  12. Energy carried by a wave The greater the Amplitude  The more Energy the wave carries Compressional– based on how close coils are Transverse– based on height of wave Amplitude

  13. What type of wave is this?

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