Question

e period and amplitude o an activity to understand. Measure time interval using periodic motion of an object. Materials: A string, a small stone/eraser, a doorknob/ handle and a stopwatch Let's do: 1. At one end of the string, tie stone/eraser and tie the other end of the string to a doorknob/ handle any other place at a height. 2. Pull the string slightly and then leave it to allow a free back and forth motion. 3. Use stopwatch to note down the time taken by the object (stone/eraser) to complete 15 oscillations 4. Divide the total time taken for 15 oscillations by 15. Observations: 1. The object oscillates and shows a periodic motion. It can be used to measure a time interval. 2. Time taken to complete the oscillations does not change.
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Answer 1

Answer:

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