unit one

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Across
  1. 3. wave, a space, Wave formed from crests and troughs. Fequency, a space, Number of complete oscillations per unit time (one sec).
  2. 5. time, a space, Time needed by the body to make one complete oscillation.
  3. 7. wave, a space, Type of wave that don't need a medium to propagate through.
  4. 8. wave, a space, The waves that consist of compressions and rarefactions.
Down
  1. 1. a space, vibration of the medium particles.
  2. 2. motion, a space, Type of periodic motion where the body passes throught the fixed point.
  3. 4. wave,a space, Type of waves that need a medium to propagate through.
  4. 6. space, The maximum displacement of the oscillating body.