MOTION AND TIME

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Across
  1. 4. constant speed
  2. 5. measured the speed of vehicle
  3. 8. S.I unit of time
Down
  1. 1. to and fro motion
  2. 2. record the distance travelled
  3. 3. time taken to complete one oscillation
  4. 6. consist a bob suspended with thread
  5. 7. distance travelled in unit time