Hydroelectric dams work by blocking the path of a water source to create an area with water held back by the dam. The dam can then be opened to allow water to be released.. The energy from the moving water is used and transformed into electrical energy. What type of energy does a hydroelectric dam capture as the water passes through?

A. Mechanical energy

B. Light energy

C. Sound energy

D. Nuclear energy

A. Mechanical energy

A hydroelectric dam captures mechanical energy as the water passes through.