Across
- 7. particles move parallel
- 9. overlapping waves that combine and form a new wave
- 11. material for waves to travel in
- 12. where particles are closest together
- 14. direction change when travling by an edge or through an opening
- 17. travels only through matter
- 18. distance between wave points
- 19. transfers energy not matter
Down
- 1. energy transfer to a wave's medium
- 2. number of wavelenghts per second
- 3. maximum distance from rest position
- 4. particles are farthest apart here
- 5. angle of reflection equals angle of incidence
- 6. travels through empty space and matter
- 8. light passage through an object
- 10. transverse wave's lowest point
- 13. wave's change in direction due to its change in speed
- 15. wave bouncing off a surface
- 16. wave with a perpendicular disturbance