The energy of the water coming down from the dam impacts the excitation point of the water energy to

We can conclude from the figure:

(1) Water in high places and pile driving in high places have gravitational potential energy because they are lifted;

(2) When objects from high places fall, gravitational potential energy is converted into kinetic energy.

So the answer is:

(1) Objects at height have gravitational potential energy

(2) Gravitational potential energy can be converted in kinetic energy; .

The Three Gorges Dam, the largest water conservation center in the Yangtze River basin, requires a very large amount of work. If the water is discharged directly, it will certainly have a very significant impact on the dam. In a short time, there probably won't be any big problems. But in the future, the dam may collapse due to too much impact, causing a very big disaster,that's why the designer came up with this method. Discharging water 15° up the dam can effectively slow down the impact of water flow on the dam, thereby extending the life of the dam.