Across
- 2. This kind of wave has vibrations in the same direction as travel.
- 5. A backwards-and-forwards movement.
- 6. This transfers energy, not matter.
Down
- 1. The time for one wave to pass.
- 3. This kind of wave has vibrations at right angles to the direction of travel.
- 4. The size of a vibration (from rest to peak).
- 6. The distance from one wave peak to the next.