Final answer:
It is acceptable for the student to claim a period of 1.754 seconds for the pendulum based on their measurements. To measure the period more accurately, more swings, a precise timing instrument, and repeated experiments could be utilized. Another student's measurement results in a period of 1.8005 seconds. The correct answer is option c Later, another student finds that 20 completes wings take 36.01 seconds. From these measurements,
Step-by-step explanation:
When the student finds that 10 complete swings take 17.54 seconds and calculates the time for one swing as 1.754 seconds, it is acceptable to claim that the period of the pendulum is 1.754 seconds. This is because the period is defined as the time taken for one complete cycle, and by dividing the total time by the number of cycles, the student accurately calculates the period.
To measure the period of a pendulum more accurately, the student could:
- Take more swings to increase the total time, reducing the relative error caused by the start and stop timing.
- Use a more precise timing instrument.
- Repeat the experiment several times and calculate the average.
In the case where another student finds that 20 complete swings take 36.01 seconds, the period of the pendulum would be calculated as follows:
Period = Total time for swings / Number of swings = 36.01 seconds / 20 swings = 1.8005 seconds.
Therefore, the period of the pendulum, based on this measurement, is 1.8005 seconds.