Physics
Pushpa and her friends are competing against each other. They are running from point A to point B to see who complete the distance the fastest. However, they are getting confused as to how to record the time properly since only one of their friends has a wristwatch.
Now, answer the following questions.
(a) What will your suggestion be to Pushpa and her friends?
(b) Is there any other instrument that will be a better choice in this case?
(c) What will be the most appropriate unit for their observations?
Measurements
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Answer
(a) I would suggest that one person with the wristwatch should note down the start time and finish time for each runner, then calculate the difference to find the time taken by each.
(b) Yes — a stopwatch would be a better choice, because it can measure short time intervals more accurately than a wristwatch.
(c) The most appropriate unit for their observations would be seconds (s), since running times are usually short and need precise measurement.
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