Question

In a hydroelectric dam, what is the primary energy transformation?

answer choices:

Chemical energy to electrical energy
Chemical energy to electrical energy

Thermal energy to mechanical energy
Thermal energy to mechanical energy

Gravitational potential energy to electrical energy
Gravitational potential energy to electrical energy

Nuclear energy to electrical energy

Answer 1

The primary energy transformation in a hydroelectric dam is from **gravitational potential energy to electrical energy**. As water is stored at height, it possesses gravitational potential energy. When released, this energy is converted to mechanical energy through turbines, which then generates electrical energy.

So, the correct answer is: **Gravitational potential energy to electrical energy**.