Waves crossword

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Across
  1. 2. a pressure caused by the vibration of something in a medium that transfers energy
  2. 8. when waves bend around small obstacles or when light bends it when it passes around an edge/slit
  3. 11. of energy that travel through earth's layers and are a result of natural disasters
  4. 12. oscillations are perpendicular to the direction of the waves advance
  5. 16. waves where the disturbance moves in the same direction as the wave, one basic wave
  6. 17. wave
Down
  1. 1. of waves that pass a point in
  2. 3. when waves bend as they pass through a new medium which changes the direction of the waves and can distort images in water
  3. 4. that are moving keep moving unless a force acts upon it
  4. 5. surface between the earth's crust and the mantle lying at a depth of about 6-7m under the ocean bed
  5. 6. that happens repeatedly
  6. 7. uses sound waves to produce pictures of the inside of the body
  7. 9. of a wave from equilibrium
  8. 10. a disturbance in which there is a transfer of energy from place to place
  9. 13. wave
  10. 14. a state of balance between opposing forces or actions
  11. 15. the location of objects by reflected sound