Question

what will be the change in the time period of a loaded spring,when taken to moon?

Answer 1

Changing gravitational environment will only change its mean position ,

So there will be no net change in the time period of loaded spring , unlikely simple pendulum

Answer 2

Answer:

The time period of a loaded spring does not depend upon the acceleration due to gravity but depends upon the mass attached and spring constant  of spring.

Hence it will not change when if taken to the moon.