Wind Turbines

As blade ______ increases the potential power output of the wind turbine increases.

• Width

• length

• Span

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

Do longer blades generate (make) more power?

• Yes

• No

• Usually

• If they are designed well

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

Aerodynamic shape that provides high lift and low drag like an airplane wing

• airfoil

• wind blade

• fan blade

• teardrop

To generate power, wind turbine blades need to spin and create ___________

• air

• torque

• wind

Tags

NGSS.MS-PS3-5

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

• lift

• drag

• torque

• spin

• velocity

Tags

NGSS.MS-PS2-2

Newton's third law states that for every _________, there is an equal and opposite reaction. In the case of a wind turbine blade, the action of the wind pushing against the blade causes a reaction — the blade is deflected, or pushed in the opposite direction.

• movement

• motion

• action

• act

What is Rotational Energy?

• Energy created when something drops from a distance

• The forward motion of an object

• Energy created from an object turning in a circular motion

Tags

NGSS.MS-PS3-5