G8 Unit3: Waves

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Across
  1. 3. A form of energy that travels as longitudinal waves through a medium, typically air, perceived by the human ear as a sensation of hearing; characterized by variations in pressure.
  2. 4. When a wave passes through a material without being absorbed or reflected.
  3. 9. The maximum displacement of a wave from its equilibrium position, representing the intensity of the wave.
  4. 10. A disturbance that transfers energy through a medium, characterized by repeating patterns of crests and troughs, with properties like frequency, amplitude, and wavelength.
  5. 12. The range of all electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays, arranged based on their wavelengths and frequencies.
  6. 15. The process where a material takes in energy from a wave, reducing its intensity.
  7. 16. The highest point of a wave.
  8. 18. Electromagnetic waves with shorter wavelengths than radio waves, used for communication and heating.
  9. 20. The material a wave travels through, like air or water.
  10. 22. Electromagnetic waves just beyond violet light that have more energy and can cause sunburns.
  11. 23. The bouncing back of a wave when it strikes a barrier.
Down
  1. 1. Electromagnetic waves just below visible red light that transfer heat energy.
  2. 2. Spectrum The part of the electromagnetic spectrum that can be seen by human eyes; includes all colors of visible light (ROYGBIV)
  3. 5. The longest wavelength and lowest frequency electromagnetic waves.
  4. 6. The number of wave cycles that pass a fixed point per unit time, measured in Hertz (Hz).
  5. 7. High-energy electromagnetic waves that can pass through soft tissue but not through bone.
  6. 8. A wave where the vibrations of the medium are perpendicular to the direction of wave propagation, like ripples on water.
  7. 11. The bending of a wave as it passes from one medium to another, changing its speed.
  8. 13. The highest energy and shortest wavelength electromagnetic waves, produced by stars and radioactive materials.
  9. 14. In a longitudinal wave, the area of low pressure or reduced density between compressions.
  10. 17. The distance between two consecutive crests or troughs of a wave.
  11. 19. A wave where the vibrations of the medium are parallel to the direction of wave propagation, like sound waves.
  12. 21. The lowest point of a wave.