Describe quantitatively, in words, the relationship between the mass attached to a vertical spring, and the time it takes for the spring to complete one full cycle.

Direct relationship.

Explanation:

There is a direct relationship between mass attached to vertical spring and the time period to complete one cycle because when the mass increases, more time is taken by the spring to complete one full cycle and vice versa. When the mass of the spring increases, the length of the spring is also increases so due to more length it takes more time to complete one full cycle as compared to less mass attached to the spring.