How did the change in the mass of the bob affect the resulting period of oscilla

Question

How did the change in the mass of the bob affect the resulting period of oscillation? Does this follow what is expected from theory? 2) How did the change in the initial angle affect the resulting period of oscillation? Explain this result based on Equations 1 and 2 from the lab. 3) How did the change in the length of the string affect the resulting period of oscillation? Does this follow the theoretical relationship between period and length? 4) List at least on specific source of error that would account for the difference between your value for g and the accepted value. 5) Using your results, what would you expect the period of a two meter long string to be? 6) If you did this identical experiment in an environment where the acceleration due to gravity was a quarter of its value on Earth, what would you expect the period to be for a string half a meter in length? (Answer based on your results.)

Explanation / Answer

1.)

the equation for period only contains gravity and the length of the pendulum string, the mass of the bob has no impact on the period

3.)

the length of the string had an immediate impact on the period. As the length decreases, the period also decreases.

T = 2 * pie * sqrt(L/g)

4.)

The most important and, by far, most significant factor is air resistance. If we could create a vacuum chamber with a pendulum in it, the accuracy of the test would be greatly increased. It factor accounts for the bulk of the percent error in the calculation of gravity.

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