1.) Gravitational potential
2.) kinetic
Explanation: Gravitational potential energy is energy stored in an object due to the object's height. Gravitational potential energy can be transformed into kinetic energy as the object loses its height and gains speed. Under ideal conditions, although an object's potential and kinetic energy may change, the total amount of mechanical energy it possesses does not change.
The water has gravitational potential energy when the gates are closed due to its height. This energy is transformed into kinetic when the gates open and the water begins to flow downward.
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