Across
- 1. At right angles to each other
- 4. Type of electromagnetic wave used to heat food
- 6. Electric and magnetic areas that make up EM waves
- 7. Used for communication technology
- 8. What happens to energy as it travels farther from its source
- 9. Matter that waves can travel through
- 11. Area of magnetic force around a magnet
- 12. What must move to begin an electromagnetic wave
- 13. Used in medicine to see inside the body
- 17. Energy produced when microwaves heat food
- 18. Waves made of vibrating electric and magnetic fields
- 19. Area of electric force around a charged particle
- 20. Occurs when waves bounce off a surface
- 22. Type of wave that moves perpendicular to direction of travel
Down
- 2. Occurs when waves spread out around obstacles
- 3. What happens when energy is taken in by matter
- 5. The transfer of energy by electromagnetic waves
- 8. Empty area where electromagnetic waves can travel
- 10. Main source of electromagnetic waves on Earth
- 14. Where electromagnetic waves originate
- 15. Motion that starts an electromagnetic wave
- 16. Bending of waves when entering a new medium
- 21. What electromagnetic waves transfer