CP5 - Crossword Labs

1. The change in direction when a wave goes from one medium to another.
6. The angle between an incoming light ray and the normal.
8. Electromagnetic radiation with a longer wavelength than infrared radiation but a shorter wavelength than radio waves.
9. Cancer treatment in which a patient is given gamma radiation to kill the cancer cells.
12. Deoxyribonucleic acid. Chemical that makes up genes and chromosomes.
15. Electromagnetic radiation that has a shorter wavelength than visible light but a longer wavelength than X-rays.
16. Electromagnetic radiation that has a longer wavelength than visible light but shorter than microwaves.
17. An imaginary line at right angles to a surface where a ray of light hits it.
18. Electromagnetic radiation with the longest wavelengths and lowest frequencies.

2. The number of vibrations (or the number of waves) per second.
3. A change in the DNA instructions in a cell.
4. A wave in which the vibrations are at right angles to the direction the wave is travelling.
5. Absorbing radiation of one wavelength and re-emitting the energy at a different wavelength
7. A group of waves that all travel at the same speed in a vacuum, and are all transverse.
10. The angle between the normal and a ray of light that has been refracted.
11. A place where there is no matter at all.
13. Movements back and forth.
14. Electromagnetic radiation with the shortest wavelengths and highest frequencies