EM and Sound Waves

2. Electromagnetic waves used to produce images of bones inside the body
6. A type of wave where oscillations are perpendicular to the direction of energy transfer
8. Sound waves with frequencies below human audible range (<20Hz)
11. The maximum displacement of an oscillation from equilibrium
14. Sound waves with a frequency higher than the human audible range (>20,000 Hz)
15. A reflection of a sound wave
16. The region in a longitudinal wave where the particles are spread out or further apart
17. The region in a longitudinal wave where the particles are bunched up or closer together
19. Electromagnetic waves emitted by warm objects and used in thermal imaging

1. light Electromagnetic waves that can be detected by the human eye
3. radiaiton types of radiations that can ionise an atom in a cell to cause mutation or cancer
4. The number of complete wave cycles passing a point per second, measured in Hertz (Hz)
5. Electromagnetic waves that can cause sunburn and skin damage
7. A type of wave where oscillations are parallel to the direction of energy transfer
9. a repeated back-and-forth or up-and-down movement about a point
10. Electromagnetic waves used for regional communication and cooking by heating water
12. waves Longest wavelength electromagnetic waves used for long distance communication
13. The distance between adjacent peaks or centres of compression of a wave
18. rays Electromagnetic waves with the highest frequency and most energy