Waves Introduction

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Across
  1. 3. Vibrations are at right angles to direction of energy transfer.
  2. 5. Vibrations are parallel to direction of energy transfer.
  3. 6. Height of the wave crest measured from middle.
  4. 7. Distance travelled by a wave crest per second
  5. 8. Unit of frequency
  6. 9. Number of waves per second.
Down
  1. 1. Areas where particles are further apart.
  2. 2. Distance from one crest to the next.
  3. 4. Areas where particles are squashed together.