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  3. 7th Class
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  5. Time and Motion

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

  • question_answer
    DIRECTIONS: Read the passage given below and answer the questions that follow. Passage-2 The smallest time interval that can be measured with commonly available clocks and watches is one second. However now special clocks are available that can measure time intervals smaller than a second. Some of these can measure time intervals as small as one millionth or even one billionth of a second. The time measuring devices used in sports can measure time intervals of

    A) a mille second 

    B) a micro second

    C) a nano second

    D) none of these

    Correct Answer: D

    Solution :

        To measure time period of a pendulum we normally need a stop watch. In case stop watch is not available, we can use a table clock or a wrist watch.


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