Waves

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Across
  1. 3. This is the peak, or highest point, of a wave.
  2. 4. This is the material in which a mechanical wave travels.
  3. 8. A rhythmic disturbance that carries energy through matter or space.
  4. 9. The person or device that receives the wave or information.
  5. 12. This the bottom, or lowest point, of a wave.
  6. 14. A change in sound frequency due to the relative motion of either the source of sound or the detector.
  7. 15. This is the distance from the peak to a peak of a successive wave.
  8. 16. This is an imaginary line perpendicular to a flat, reflective surface.
  9. 18. This is the speed of light in vacuum divided by the speed of light in the medium. This determines the amount of bending of a light wave.
  10. 19. This is the angle at which light leaves or bounces off of a surface relative to the normal, or an imaginary line perpendicular to the surface. The law of reflection states that this angle is equal to the angle of incidence.
  11. 22. A compression wave of gas, liquid, or solid, that is detected by your ear.
  12. 24. This is the constructive or destructive overlap of waves.
  13. 27. This is the reduction in the density of a medium.
  14. 28. In a transverse wave, this is the magnitude of height of a wave from origin to crest.In a longitudinal wave, this is corresponds to how much the wave is compressed, as compared to areas of little compression.
  15. 29. This is the portion of the electromagnetic spectrum that human eyes can detect.
  16. 30. This is a wave whose energy travels in the same direction as the energy being transferred.
Down
  1. 1. The complete range of light waves organized by wavelength/frequency.
  2. 2. This is an interaction in which two waves meet, matching the crest of one with the trough of the other. They cancel out, producing smaller crests or troughs than a single wave alone.
  3. 5. A propagating wave in space with electric and magnetic components. These components oscillate at right angles to each other. It may travel in a vacuum.
  4. 6. This is the number of complete movements of a wave per second.
  5. 7. This is mechanical oscillations about an equilibrium point. The oscillations may be regular and repeating motion around a fixed position like a pendulum or they may be random.
  6. 10. The bouncing back of a wave from a surface.
  7. 11. Also called a longitudinal wave, they are waves whose direction of vibration is the same as their direction of travel.They produce compression and rarefaction when traveling through a medium.
  8. 13. The bending of a wave as it moves from one medium to another.
  9. 17. This is the angle that light strikes a surface relative to the normal, or an imaginary line perpendicular to the surface. The law of reflection states that this angle is equal to the angle of reflection.
  10. 20. This is a type of wave that travels in one direction, but the energy travels perpendicular to this direction.
  11. 21. This is a spreading out of a wave around corners or through holes.
  12. 23. A wave which needs a medium (solid, liquid, gas) in order to propagate itself.
  13. 25. This is the increase in density of a medium due to wave travel.
  14. 26. This is the high or low tone or frequency in which a speech is made.