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Wave Interactions. Chapter 10 Section 3 Physics Standard 4f. Reflection. Bouncing back of a wave when it meets a surface. When wave medium are free (not attached), they will reflect the wave. If wave medium is attached, it will turn wave upside-down and then reflect. Diffraction.

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wave interactions

Wave Interactions

Chapter 10 Section 3

Physics Standard 4f

reflection
Reflection
  • Bouncing back of a wave when it meets a surface.
  • When wave medium are free (not attached), they will reflect the wave.
  • If wave medium is attached, it will turn wave upside-down and then reflect.
diffraction
Diffraction
  • Bending of waves as they pass an object’s edge or opening.
  • Original wave bent

Diffraction

refraction
Refraction
  • Bending of waves as they pass from one medium to another.
  • Ex: light traveling through water then air.
  • Light bent when enters water.

Spoon appears to be cut

interference
Interference
  • Combo of 2 or more waves that exist in the same place at the same time.
    • Constructive interference: 2 waves combine so that resulting wave is bigger than the orig. waves

Waves travel at same frequency

destructive interference
Destructive Interference
  • 2 waves combine so that resulting wave is smaller than the largest of orig. waves.

Waves travel at diff. frequencies

doppler effect
Doppler Effect
  • Observed change in frequency of a wave when the source of the wave is moving.
  • Occurs in light and sound waves.