waves crossword

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Across
  1. 2. A change in the frequency of sound or light of the source and detector.
  2. 3. A Phenomenon that occurs when vibrating system of external force deives another system to oscillate with greater amplitude at a specific prefential frequency
  3. 4. a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.
  4. 5. the Absolute value of the maximum displacement from a zero value during one period of an oscillation.
  5. 6. When two waves meet and combine with each other.
  6. 10. The absolute value of the maximum displacement from a zero value during one period of an oscillation.
  7. 14. Interference in which individual displacements on the same side of the equilibrium position are added together to form a resultant wave.
  8. 15. a wave in which the direction of displacement is the same as the direction of propagation, as a sound wave.
  9. 18. An interval of time during which a characteristic, often regularly repeated event or sequence of events occurs.
  10. 19. The number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency.
Down
  1. 1. A state of frequency, defined as the number of complete cycles of a periodic signal that take place in one second.
  2. 2. Interference in which individual displacements on opposite sides of the equilibrium position are added together to form a resultant wave.
  3. 7. A change in direction of a wavefront interface between 2 different media so that the wavefront returns to medium orginated.
  4. 8. The bending of a wave as it passes from one medium to another
  5. 9. The substance in which specimens are displayed or preserved.
  6. 11. T is the time needed for one complete cycle of vibration to pass a given point.
  7. 12. A state of lowest energy in a quantum field theory.
  8. 13. The phenomenon in which waves or light or other radiation are restricted in direction of vibration.
  9. 16. is the opposite of a crest, so the minimum or lowest point in a cycle.
  10. 17. The spreading of waves around obstacles or openings.