Waves

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  • Physics - Waves
    • Some waves require matter to transfer energy. These are called ...
      • MECHANICAL WAVES
    • Waves that do not require matter to transfer energy are called ...
      • ELECTRO - MAGNETIC WAVES
    • What are waves?
      • Waves transfer energy from one place to another without transferring any matter
    • Properties Of Waves
      • Waves have.. 1) Amplitude, 2) Wavelength, 3) Frequency
        • 1) The amplitude is the displacement from the rest position to a crest.
          • NOT from the trough to the crest
        • 3) Frequency is the no. of COMPLETE waves passing a certain point per second OR the no. of waves produced by a source each second
          • Frequency is measured in hertz (Hz). 1 Hz is 1 WAVE PER SECOND
    • TRANSVERSE AND LONGITUDINAL WAVES
      • Transverse waves are light and all other electromagnetic waves, waves on strings, ripples on water, a slinky wiggled up and down.
        • in TRANSVERSE waves, the vibrations are PERPEN - DICULAR (at 90') to the DIRECTION OF ENERGY TRANSFER of the wave
      • Longitudinal waves are sound waves and ultra sound, shock waves eg seismic waves, a slinky when you push the end
        • in LONGITUDINAL waves the vibrations are PARALLEL to the DIRECTION OF ENERGY TRANSFER of the wave

Comments

Miss KHP

This is an excellent resource! It will help you understand the difference between longitudinal and transverse waves- something that students tend to find difficult to compare. This is excellent!!! Useful for all major syllabuses.

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