Across
- 3. the number of wavelengths that pass a point each second
- 5. wave: a wave that only travels through matter
- 8. wave: a wave that can travel through empty space or through matter
- 9. wave: a wave in which the disturbance is perpendicular to the direction the wave travels
- 10. the maximum distance a wave varies from its rest position
Down
- 1. wave: a wave that makes the particles of a medium move back and forth parallel to the direction the wave travels
- 2. wave: a wave caused by an earthquake
- 4. Speed: depends on the medium, or type of material, through which it travels.
- 6. energy you produce that bounces back, causing an echo
- 7. the change in direction of a wave as it changes speed, moving from one medium into another