Flashcard review

Front

What happens to drag when the surface is smoother?

Back

The drag becomes less.

Front

What angle of the blade to the wind causes the greatest amount of drag?

Back

0 degree angle.

Front

Which turbine takes more energy to move: Turbine A with heavy blades or Turbine B with light blades?

Back

Turbine A takes more energy.

Front

What is 'lift'?

Back

The force that pushes something up.

Front

What is needed to generate electricity in a wind turbine?

Back

A rotating electrical generator placed between two magnets.

Front

What is drag?

Back

The force that opposes the motion of an object through a fluid.

Front

What is the role of blades in a wind turbine?

Back

Blades capture wind energy and convert it into rotational energy.

Front

What is the relationship between blade weight and energy required to move a turbine?

Back

Heavier blades require more energy to move.

Front

What is the effect of wind speed on lift?

Back

Higher wind speed increases lift.

Front

What is the purpose of a rotor in a wind turbine?

Back

To convert wind energy into mechanical energy.