Across
- 1. combination of transverse and longitudinal waves
- 5. the process of a wave reversing direction and traveling back to the original medium
- 10. energy is parallel to wave direction
- 12. repeated disturbance that moves energy
- 14. to bounce back
- 16. force that resists movement of two surfaces against each other and creates thermal energy
- 17. heat
- 18. how loud or soft something sounds
- 19. anything that has mass and takes up space (volume); solid, liquid, or gas
- 21. when a sound is reflected
- 23. where two media meet
Down
- 1. vibrations through a medium that carry sound energy
- 2. rest position to crest or rest position to trough; gives the sound volume
- 3. when an object takes in the energy of a wave
- 4. plural of medium or more than one medium
- 6. energy is perpendicular to wave direction
- 7. a substance that the wave travels through
- 8. to move back and forth quickly
- 9. how high or low a sound is
- 11. a wave that has changed direction after it has reached a boundary
- 13. number of waves per second; determines the pitch
- 15. small pieces of matter that are too small to see (microscopic)
- 19. a wave that requires a medium to travel through
- 20. when a wave goes from one medium to another
- 22. used to move things or do work