Across
- 5. A form of energy that can travel through empty space and make things visible
- 8. A pattern of symbols used to communicate a message
- 10. The giving off of energy as electromagnetic waves
- 12. Data such as pictures, sounds, or messages
- 14. To bounce off of something
- 16. A visual object or mark that stands for something else
- 19. Describes signals sent as continuous waves
- 20. The height or distance from the crest to the midpoint or trough of a wave
- 22. The highest part of a wave
- 23. The number of times a wave peaks over a period of time
- 25. The lowest part of a wave
- 26. A symbol or message sent over a distance
Down
- 1. A regular or repeated way something happens
- 2. The interaction of electric fields with matter
- 3. Describes signals sent as separate bits instead of continuous waves
- 4. The measurable strength or power of a vibration
- 6. The matter through which sound passes
- 7. To take something in and contain it
- 9. The origin of something
- 11. An interruption of stillness
- 13. A body movement used to communicate an idea or emotion
- 15. To move from one place to another
- 17. An aspect of light that helps us tell objects apart by sight
- 18. The quality of sound described as high or low
- 21. To give off
- 24. A property of matter that allows light to pass through it