General Physics 1

Question

1. Is the period affected if the number of waters was increased to nine or 12 washers?

2. Among the measured (g), which is the most accurate among the lengths used?

Answer 1

Hi John Loyd D.,

It's difficult to imagine the experiment. Were you displacing water by dunking numbers of washers?

Assuming you made a careless typo, this is not a question for a tutor to answer. It is a question for you to answer from your data. You do have data?

Then, you have an expression for period, pendulum length, and the gravity constant. Your measured values for period of the pendulum, and your measured pendulum lengths -- by the way, length should have been measured to the center of mass of the washers, hence not quite be the same for each number of washers! -- will solve for a value of g. You just need to compare your experimental values against the accepted value for g (look that up, think it's 9.81 m s^(-2) ).

-- Cheers, -- Mr. d.