3.4 recall that waves transfer energy and information without transferring matter

A wave transfers energy and information from one place to another without transferring matter (things) in the process

EG: Pond –

  • Drop a pebble – a few circular ripples will move outward on the surface of the water
  • Any object on the surface of the water will bob up and down because the waves are transverse
  • Therefore, waves transfer energy without transferring matter

EG: Rope –

  • By moving the rope up and down they produce vibrations
  • Rope waves travel towards the wall but the rope itself only moves up and down

 

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