Unit 9 Waves

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Across
  1. 3. Interaction of a wave when it bounces off a surface it cannot pass through
  2. 6. Material through which a wave carries energy
  3. 7. Distance between a point on one wave and the same point on the next cycle of the wave
  4. 10. Apparent change in frequency due to moving objects
  5. 13. A wave where the vibration is perpendicular (right angle, 90°) to the direction of motion and the particles move up and down
  6. 14. Time it takes for one complete cycle of a wave to pass a given point and is measured in seconds
  7. 15. Two or more waves facing opposite directions combine and the smaller wave destroys part of the larger one
  8. 18. A wave where the vibration propagates (moves) in the same direction as the movement of energy. They are compression waves
  9. 19. The lowest part of a transverse wave
  10. 21. Waves bend when entering a new medium at an angle
Down
  1. 1. = wavelength ✕ frequency
  2. 2. Part of a longitudinal wave area where the particles in the medium are spread out
  3. 4. A wave that is a combination of compression and transverse and the surface particles move in circles
  4. 5. Waves bend as they move around an obstacle or through a narrow opening
  5. 6. A wave that travels through a medium and is created when a different form of energy causes a medium to vibrate
  6. 8. A wave that is made of a pair of perpendicular transverse waves and is produced when a charged particle accelerates or vibrates
  7. 9. Two or more waves facing the same direction combine and construct a larger wave
  8. 11. The number of complete cycles of the wave in a given time and is measured in Hz
  9. 12. The height of the crest or depth of the trough relative to the resting (original) position on a transverse wave
  10. 16. The waves with the longest wavelengths in the electromagnetic spectrum
  11. 17. Part of a longitudinal wave area where the particles in the medium are close together
  12. 20. The highest part of a transverse wave