PHYSICS

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