Across
- 3. anything that is ___ absorbs all colours
- 5. type of waves that have a higher frequency than visible light
- 7. type of light used to change channels on your TV
- 8. bags in an airport can be checked using ___
- 9. ___ have the lowest energy and frequency
- 11. Magnetic ___ Imaging
- 12. waves that are used to know the location and speed of an object
- 14. ___ have the shortest wavelength of all radio waves
- 15. infrared cameras detect defferences in ___
Down
- 1. Most electromagnetic waves are ___
- 2. light is a type of ___ radiation
- 4. ___ can be used to treat cancer
- 6. x-rays are ___ by bone
- 10. Gamma rays have the ___ frequency
- 13. Acronym for the colours in the visible spectrum