Waves

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  • Created by: alexda
  • Created on: 17-05-14 15:08
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  • Waves
    • Wavelength - The distance from one peak to the next.
    • Frequency - How many complete waves there are per second. (Hz)
    • Amplitude - Height of the wave.
    • Transverse waves vibrate at right angles to the direction of travel of the wave.
      • e.g. Light and all electromagnetic waves.
      • e.g. S-waves
    • Longitudinal waves vibrate along the same direction as the wave.
      • e.g. Sound and ultrasound.
      • e.g. P-waves
    • Reflection
      • When a waves hits a boundary between one medium and another some of the energy is reflected because of the change in density.
      • Angle of incidence = Angle of reflection.
    • Waves transfer energy and information without transferring matter.
    • Refraction
      • When a wave passes from one medium to another its speed changes because of the change in density.
        • If it slows down the light bends towards the normal.
          • The greater the difference in density = The greater the refraction
        • If it speeds up it will bend away from the normal.

Comments

h_clarke

what does p-waves and s-waves mean?

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