Across
- 2. process of removing electrons from neutral atoms
- 3. term for ultraviolet, invisible to the naked eye
- 7. a ray of light that strikes a surface
- 9. locates positions within an accuracy of 10 to 100m
- 11. used in radar, in communications, and for heating in microwave ovens
- 12. Radiowaves 30-300MHz
- 13. can store and transmit data similar to UPC
- 16. reflective surface that shows an image by reflecting light
- 17. curves outward and diverges light
- 19. a type of energy that travels through space through electric and magnetic fields
- 20. a type of EM radiation with wavelengths shorter than visible light, responsible for Vitamin D
- 21. discovered Gamma Rays
- 25. discovered infrared waves
- 27. bending of light
- 29. UV that affects the dermis
- 31. UV that affects the epidermis
- 32. cancer treatment that uses high energy radiation to kill cancer cells
- 33. Radiowaves 30-300kHz
- 35. cancer and mutation, affect the person or their offspring
- 36. used for viewing internal parts without invasive exploratory surgery
- 37. Radiowaves 3-30MHz
- 38. discovered visible light
Down
- 1. sufficient energy to induce ionization
- 4. discovered radiowaves
- 5. Radiowaves 300-3000kHz
- 6. bouncing back of light
- 8. the full range of electromagnetic radiation, organized by frequency or wavelengt
- 10. reflection that happens on rough surfaces
- 14. discovered by Wilhelm Roentgen
- 15. reflection that occurs on smooth surfaces
- 17. curves inward and converges light
- 18. EM Wave with the shortest wavelength
- 22. UV thats absorbed by the atmosphere
- 23. invisible EM radiation that have a wavelength longer than visible red light and shorter than microwaves
- 24. is the only EM wave seen by the naked eye
- 26. discovered XRAYS
- 28. acronym for radio detection and ranging
- 29. Radiowaves 300-3000MHz
- 30. longest of all EM waves
- 34. radiation burns, and cause damage to tissues