List two ways to measure the gravitational potential energy of a ball when it's dropped from different heights.

The two different ways to measure gravitational potential energy is listed below:

Explanation:

To measure the gravitational potential energy of the ball dropped from certain height we can use the formula as:

PE = mgΔh

where,

m = mass of the ball

g = gravity

Δh = change in height

The second way is to follow the principal as:

Loss in PE = Gain in KE

∴ - ΔPE = ΔKE

Height and mass is the major element that determines the gravitational potential energy of any object.