Waves

Waves

1. Can transfer energy and information

   • (without a net motion through the material)

2. They involve vibrations (OSCILLATIONS)

3. LONGTITUDINAL WAVES

   • OSCILLATIONS are PARALLEL to direction of ENERGY TRANSFER

4. TRANSVERSE WAVES

   • The medium OSCILLATES up and down but wave pattern is horizontal
     • Energy travels horizontally but the water stays where it is
   • EXAMPLE: A WATER WAVE.

5. WAVELENGTH

   • It is the length of one complete wave
   • FREQUENCY (F) is number of waves in one second
     • Measured in HERTZ (Hz)
       • 50 Hz = 50 vibrations in 1 second
   • Distance between two peaks or troughs measured in LAMBDA

6. WAVE SPEED

   • The speed at which energy is transfered along the wave
   • Measured in meters per second

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