Across
- 1. boom/ explosion after an aircraft flies faster than the speed of sound
- 2. wave/ wave that requires a medium to travel
- 6. wave/ wave that continually moves
- 7. units of frequency
- 10. bottom of a wave
- 11. transfer of energy
- 12. wave/ a type of wave that does not need a medium to travel
- 16. wave/ energy moves perpendicular to the medium
- 17. the minimum amplitude of a wave
- 18. substance that carries a wave
Down
- 1. wave/ medium is constant
- 3. the maximum displacement from the top of the crest to the rest point
- 4. top of a wave
- 5. the amount of waves that travel in a given moment
- 6. wave/ wave caused by single disturbance
- 8. wave/ energy moves parallel to the medium
- 9. the measurement of a wave from crest to crest
- 13. the maximum amplitude of a wave
- 14. the time needed to complete a vibration
- 15. speed/ wavelength times frequency