Across
- 6. Waves that require a medium to go through
- 10. Waves that transfer energy horizontally in their medium, they require a medium
- 12. The bouncing back of a wave when it cannot pass through a surface
- 13. The unit for frequency, equal to one cycle per second
- 15. The biological process of using sound waves to find objects, animals such as bats use this
- 17. How tall the wave is on one side of the equilibrium
- 18. How high or low the noise of the wave is depending on frequency
Down
- 1. A unit used to compare the loudness of sound
- 2. Highest point of a wave
- 3. The distance between to crest or troughs
- 4. Waves that move energy perpendicular to the equilibrium, not all waves require a medium
- 5. Slower than the speed of sound
- 7. Faster than the speed of sound
- 8. How many wave peaks or troughs pass a given point in a certain time
- 9. A manmade instrument that creates sound waves to produce a picture of where things are located
- 11. A unit of motion that repeats
- 14. Material through which a wave has to travel through which is a solid, liquid or gas
- 16. Lowest point of a wave