Across
- 3. where the particles are spread out
- 5. moves matter in a perpendicular way
- 7. wave a mechcanical wave in Wich matter in the medium moves forwards and backwards
- 8. wave does not need matter or a medium to transfer energy
- 10. highest point on the wave
Down
- 1. particles are crowded together
- 2. the differences between the crest
- 4. lowest point on the wave
- 6. is the greastest value of the wave
- 9. wave needs matter or medium to transfer energy