Across
- 2. wave changes direction, because its speed changes
- 3. region of a longitudinal wave where the particles are farthest apart
- 7. material in which a mechanical wave travels
- 11. number of wavelengths that pass by a point each second
- 12. disturbance that transfers energy from one place to another
- 13. angle of incidence equals angle of reflection
- 15. highest point on a transverse wave
- 17. can travel through empty space and through matter energy ability to cause change
- 18. bouncing of a wave off a surface
- 19. makes the particles in a medium move parallel to the direction of the wave
- 20. passage of light through an object
Down
- 1. waves that overlap combine to form a new wave
- 4. maximum distance particles in a medium move from their rest position as waves pass through the medium
- 5. change in direction of a wave when it travels by the edge of an object or through an opening
- 6. transfer of energy by a wave to the medium through which it travels
- 8. travels only through matter
- 9. disturbance is perpendicular to the direction of the wave
- 10. distance from one point on a wave to the same point on the next wave
- 14. lowest point on a transverse wave
- 16. region of a longitudinal wave where the particles in the medium are closest together