Question

if a particle undergoes SHM with amplitude 0.25 m what is the total distance it travels in one period?

Answer 1

Starting at the center:

1/4 meter this way  ==>

then 1/4 meter this way  <==

then another 1/4 meter this way  <==

then 1/4 meter this way  ==> ending where it started.

Total = (0.25 + 0.25 + 0.25 + 0.25) = 1.00 meter.