1) What is the key assumption that is required to predict that a pendulum\'s per

Question

1) What is the key assumption that is required to predict that a pendulum's period, T, will depend on only the Length, L, according to 2) A student takes the following three masses 5 g 508 75g and using exactly the same string, and exactly the same swing size, measures the period for each resulting pendulum. The results show that the 5g mass had the smallest period and the 75g had the largest period. However the difference between the largest and smallest periods was very small (only a few percent). The Pl mistakenly concludes that mass does change the period of a pendulum. Give at least one possible mistake the student made in their procedure that led to this erroneous conclusion.

Explanation / Answer

because of heavy mass of 75 g compared to mass of 5 g , this weight would increase the length of the string according to hookes law and hence would take longer time to complete the same motion.

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