Across
- 2. This is used in hospitals
- 3. one way in which heat is transferred.
- 7. when the waves bounce back
- 9. the maximum displacement of a point of a wave from its rest position
- 11. the top of a wave
- 12. it can travel through a vacuum
- 13. produced by something vibrating
- 14. how high or low a sound is
Down
- 1. a wave in which the oscillation are at right angles to the direction of travel and energy
- 4. the change in direction of a wave
- 5. the number of waves produced
- 6. the spreading out of waves when they pass through a gap.
- 8. the distance between a point on one wave and the same point on the next
- 10. the bottom of a wave
- 12. the vibrations are parallel to the direction of wave travel