SOUND

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Across
  1. 6. is neccessary for the propogation of sound
  2. 7. SI unit is Hertz(Hz)
  3. 8. the distance travelled by the wave in one time period of vibration of particle of the medium:
  4. 9. It is a type of energy
  5. 10. distance/time, in a direction
Down
  1. 1. Frequency * wavelength
  2. 2. the time taken by a particle of a medium to complete its one vibration:
  3. 3. the wave in which particles of medium vibrate about their mean positions in a direction perpendicular to the dirtection of propogation of the wave:
  4. 4. is a source of sound
  5. 5. When a wave passes through a medium, the maximum displacement of the particle of medium on either side of its mean position is called: