Across
- 2. the length of one wave cycle
- 4. block all the lights passing through
- 6. any or substance that give their own light
- 8. wave has the movement of particles in the medium the same dimensions as the direction of movement of the wave
- 9. transferred to particles inside the substance
Down
- 1. a wave in which the medium moves right angles to the direction of wave
- 3. is the number of time a wave cycle in one second
- 4. a regular and repeating motion
- 5. The height of the wave
- 7. light energy can travel through the substance