Science

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Across
  1. 2. A disturbance, oscillation, or vibration, either of a medium and moving through that medium
  2. 7. The bending of a wave around the edges of an opening or an obstacle
  3. 8. The highest point above the rest position
  4. 12. A unit of frequency (of change in state or cycle in a sound wave, alternating current, or other cyclical waveform) of one cycle per second
  5. 13. The time it takes for a particle or physical quantity to move through one cycle of oscillation in a wave
  6. 14. The number of wave cycles to pass a given point per unit of time
  7. 16. A measure of light power per unit area
  8. 20. The principle that rock layers form one on top of another, with the youngest layers toward the top
  9. 23. The angle made by a reflected ray with a perpendicular to the reflecting surface
  10. 25. A condition well below normal atmospheric pressure
  11. 27. When heated in flames or put in electrical discharges, emit light at well-defined and characteristic frequencies
  12. 29. A mechanical wave in which the motion of the oscillating particles in the medium is perpendicular to the direction of the wave
  13. 30. Any resonant frequency above the fundamental frequency of a sound
Down
  1. 1. The maximum distance a particale moves from its starting point in a wave
  2. 3. The wide range of electromagnetic wavelengths
  3. 4. The application of balanced inward forces to different points on a material or structure
  4. 5. A particle of electromagnetic radiation, or quantum of light
  5. 6. The apparent change in frequency caused by either the source of waves moving, the observer moving, or both moving at different velocities
  6. 9. A series of repeating peaks and valleys
  7. 10. A wave generated by a disturbance in electric and magnetic fields
  8. 11. A description of the frequency of the sound
  9. 15. A phenomenon that occurs when a wave changes direction as a result of a change in wave speed at different points along a wave front
  10. 17. A point on a surface wave where the displacement of the medium is at a maximum
  11. 18. The property of sound which is used for differentiating between the loud and faint sound
  12. 19. A wave that does not appear to travel, produced when two identical waves interact as they travel in opposite directions
  13. 21. The pattern of disturbance caused by the movement of energy traveling through a medium (such as air, water or any other liquid or solid matter) as it propagates away from the source of the sound
  14. 22. A phenomenon that occurs when a wave or object bounces off an interface or another object
  15. 24. The process by which an object heats another object through electromagnetic waves
  16. 26. The type of matter through which a wave’s energy propagates
  17. 28. A mechanical wave in which the motion of the oscillating particles in the medium is parallel to the direction of the wave