Physics Paper 2 - Waves

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Across
  1. 2. the length of one complete wave
  2. 3. an e-m wave produced when changes occur in the atomic nucleus
  3. 5. occurs when a wave passes from one medium into another
  4. 7. oscillations are ________ to the direction of travel in a longitudinal wave
  5. 12. absorption of light usually leads to an increase in this
  6. 14. the unit of frequency
  7. 15. describes a wave on the surface of water
  8. 17. has a lower frequency than visible light and shorter wavelength than microwaves
  9. 18. describes radiation that can cause cancer
Down
  1. 1. type of e-m wave used in tanning
  2. 4. an e-m wave used for both cooking and communication
  3. 6. the unit of wavelength
  4. 8. measured from the equilibrium to the peak or trough
  5. 9. feature of a longitudinal wave where density is reduced
  6. 10. a sound wave with a frequency higher than 20,000 Hz
  7. 11. = wave speed / wavelength
  8. 13. = 1/frequency
  9. 16. the e-m wave with longest wavelength