2. Questions Bank
  3. 7th Class
  4. Science
  5. Time and Motion

7th Class Science Time and Motion Question Bank Motion and Time

  • question_answer
    Clocks and watches used for measuring time are based on the principle of_______ motion.

    A) Rectilinear                     

    B) Rotational

    C) Non-periodic      

    D)        Periodic

    E) None of these

    Correct Answer: D

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