Physics

5. When a wave bounces off a reflecting surface, obeying the law of reflection in the process.
6. wave interaction produced when two waves arrive at the same place at the same time. Destructive and constructive.
8. A sound wave with a frequency higher than about 20kHz, the upper limit of human hearing.
9. A scale for measuring the loudness of sounds.
11. The length of time required for an oscillating system to complete one full cycle of its oscillation

1. The spacial separation between the peaks of a wave.
2. When a wave passes through the boundary separating two media, changing velocity and direction in the process.
3. The loud boom produced by a shockwave in the air caused by the flight of an object such as a jet traveling at supersonic speed.
4. A wave interaction produced when the dimensions of a medium correspond to an integral multiple of half the wavelength, reflections propagating greater amplitude
7. When waves encounter corners or obstructions, bending and spreading out as a result.
10. disturbance in space and time that carries energy from one place to another