Wind Turbines

What is Wind Turbine Blade Span?

• How wide the blade is

• How long the blade is

• the diameter of the largest circle swept by any part of the fan blade

What is the blade chord?

• the "front" of the blade airfoil that cuts into the wind

• width of the blade measured from the leading edge to the trailing edge

• the "back" of the blade airfoil

Where is the Root of a turbine blade ?

• the "back" of the blade airfoil

• the "front" of the blade airfoil that cuts into the wind

• where the blade is attached to the turbine

• width of the blade measured from the leading edge to the trailing edge

Which forces are important in the movement of wind turbine blades? (check all that apply)

• lift

• drag

• torque

• spin

• velocity

How does wind power generate electricity?

• By heating water to turn turbines

• By using solar panels to capture wind energy

• By using turbines to capture wind energy and convert it into electrical energy

• By burning biomass materials

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DOK Level 1: Recall

Which type of renewable energy uses turbines to convert kinetic energy into electrical energy?

• Solar Energy

• Wind Power

• Hydropower

• Geothermal Energy

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DOK Level 1: Recall

Which renewable energy source requires the least amount of water to produce electricity?

• Hydropower

• Biomass

• Wind Power

• Geothermal Energy

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DOK Level 1: Recall

Which renewable energy source can be found both onshore and offshore?

• Solar Energy

• Wind Power

• Geothermal Energy

• Biomass Energy

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DOK Level 1: Recall

This system starts with energy from wind, which is a type of _____ energy.

• potential

• kinetic

• chemical

• radiant

What is the main benefit of using wind energy?

• It produces greenhouse gases.

• It requires a lot of water.

• It is a clean and renewable source.

• It can only be used at night.