What do wind turbines do?

What do wind turbines do?

• A. They convert solar energy to electricity.
• B. They filter air pollutants.
• C. They convert wind's kinetic energy into electrical energy.
• D. They store energy as heat.

Answer: (C)

Wind energy is the kinetic energy carried by moving air, and a wind turbine is built to capture part of that energy. The blades act like propellers, catching the wind so the rotor spins. That rotation turns a shaft connected to a generator, and the generator converts the mechanical energy of spinning into electrical energy that can flow to homes and the grid. So the essential idea is converting wind’s kinetic energy into electrical energy. The turbine isn’t filtering pollutants, and it isn’t storing energy as heat. Solar energy is a different source—though sunlight helps drive winds, the turbine itself uses wind, not solar heat, to generate electricity. If storage is needed, it happens in separate systems after electricity is produced, such as batteries or other storage methods.

Wind energy is the kinetic energy carried by moving air, and a wind turbine is built to capture part of that energy. The blades act like propellers, catching the wind so the rotor spins. That rotation turns a shaft connected to a generator, and the generator converts the mechanical energy of spinning into electrical energy that can flow to homes and the grid. So the essential idea is converting wind’s kinetic energy into electrical energy.

The turbine isn’t filtering pollutants, and it isn’t storing energy as heat. Solar energy is a different source—though sunlight helps drive winds, the turbine itself uses wind, not solar heat, to generate electricity. If storage is needed, it happens in separate systems after electricity is produced, such as batteries or other storage methods.