Waves

Waves

1. Sea waves

   • transverse waves
     • The vibrations are perpendicular to the direction to travel
       • Examples:
         • Waves in water waves on a string light waves
           • Trough: The low point on a wave

2. sound waves

   • Logitudinal waves
     • The vibrations are paralel to the direction of travel
       • Examples:
         • sound
           • Crest: The high point on a wave

3. Waves only travel energy

   • Wavelength is the length of a full cycle
     • Frequency is the number of complete waves, to pass a point every second
       • For knowing the speed of the wave we have to do: speed=frequency x wavelength
         • Amplitude: the size of the wave
           • Frequency is measured my hertz (Hz).

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