Across
- 2. ultra-high frequencies that can travel through matter, damages cells (bone images, radiation therapy, production of superhero-HULK)
- 4. waves with low frequency (radio stations, microwaves, radar)
- 6. audio is sent by FM radio waves and video is sent by AM radio signals
- 10. converts electromagnetic waves into sound waves
- 11. electrical signals creates a radio wave that is transmitted to and form a microwave tower
- 12. waves made by vibrating electric charges and can travel through space
Down
- 1. system of satellites and ground stations that receive high frequency signals, amplify them and return them to earth
- 3. produces images you see on tv
- 5. waves that have a slightly higher frequency than radio waves (remote control, warmth of fire, satellites)
- 7. range of electromagnetic waves you can detect with your eyes
- 8. the entire range of electromagnetic wave frequencies
- 9. waves that have frequencies slightly higher than visible light (sunburns, Vit D production, fluorescent, materials absorb it, kills bacteria)