P6. Waves

3. space is an example of this as it has no particles
7. the type of EM radiation used for satellite communication and mobile phones
10. the process where electrons are knocked out of atoms and make them charged
11. the type of radiation emitted from objects, more is emitted from hotter objects
13. a type of EM radiation that can cause sun burn and DNA mutations
15. waves where the oscillations are parallel to the direction of the wave
17. the term to describe the pitch of a sound
18. an an example of a transverse wave
19. X-rays are absorbed by this material which make them useful for X-rays of humans

1. a serious medical condition that can be treated with gamma radiation
2. waves where the oscillations are perpendicular to the direction of the wave
4. the splitting of white light into a colour spectrum
5. short wave EM radiation used to sterilize medical equipment and food
6. the units of frequency
8. the wavelengths that can carry the most information
9. an example of a longitudinal wave
12. the type of waves with the lowest frequency in the electromagnetic spectrum
14. the term to describe the loudness of a sound
16. the bending of light