Question

a) Tie something to a string. A computer mouse with a cord would work perfectly. Time the number of full swings in 10 seconds. Compute the period. What is the frequency?

b) Repeat for three different lengths, computing the period each time.  

Does the period change with length?

c) Try swing 3 different masses using the same length. You can tape items to your mouse.
Does the period depend on mass?

d) Pick a length and a period, and solve for the acceleration due to gravity. Compute the percentage error.

  

Answer 1

The following values are just a sample. Please do the actual experiment. The procedure will be same !!
________

The frequency can be found from period as follows

frequency = 1/ time period

_________

Yes, Period will depend on length

___________

No, period does not depend on mass

____________

T = 2 * sqrt ( L/g)

T² = 4² L/ g

g = 4² L / T²

just put whatever values you have !!!