Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same if the hollow spherical bob of a pendulum is filled with water and water from it slowly leaks out of it through a small hole at its bottom.

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same if the same pendulum is taken to the moon.

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same if the same pendulum is taken to different places on the earth's surface.

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same when a pendulum is taken in elevator and it is moving down with acceleration $a$

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same when a pendulum is taken in elevator, and it is moving up with acceleration $a$

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same if the same pendulum is taken in elevator, and it is falling freely.

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same if the same pendulum is taken from the equator to the North Pole.

Justify with reasons whether the period of a simple pendulum increases, decreases or remains the same if the same pendulum is taken in a compartment of a train which rotates in a circular path.