Certain dams are constructed with the purpose of generating electricity. What is the process through which dams produce electrical power?

Question

A. The sunlight striking the water from the Sun generates energy that the dam can convert into electricity.
B. The sound energy generated by the movement of water within the dam produces energy that is then converted into electricity.
C. The gravitational force acting on the dam as it pulls downward produces energy, which is subsequently transformed into electricity.
D. The energy generated by the flowing water exerts force, which the dam then converts into electricity.

Answer 1

The correct answer is D. The energy generated by the flowing water exerts force, which the dam then converts into electricity.

Here's a brief explanation of the process:

Dams generate electricity primarily through hydroelectric power plants, which harness the kinetic and potential energy of flowing water. When water flows over the dam, it has gravitational potential energy due to its height. As it descends, this potential energy is converted into kinetic energy. The flowing water turns turbines, and the mechanical energy from the turbines is then converted into electrical energy using generators.