MOTION AND TIME

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Across
  1. 3. instrument used for measuring speed
  2. 7. a weight hung from a string
  3. 8. PERIOD the time taken by a pendulum for one to-and-fro movement
Down
  1. 1. distance moved in unit time
  2. 2. standard unit for temperature
  3. 4. comparison of an unknown quantity with some fixed quantity of the same kind
  4. 5. MOTION travels in a straight line and covers equal distances in equal intervals of time
  5. 6. a substance whose crystals can vibrate very fast ,at a very precise rate