Turbines

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

Tags

NGSS.MS-PS2-1

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

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NGSS.MS-PS3-1

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Energy can be classified into..

• Renewable and non renewable
  

• Natural and non renewable

• Renewable and Natural
  

• All of them

The kinetic energy of the wind is transferred to the wind turbine blade

• and is changed to potential energy when it hits the wind turbine blade

• and the blade gains all the kinetic energy

• and the wind loses all its kinetic energy

• when the wind collides with the blade and the wind loses kinetic energy

Tags

NGSS.MS-PS3-5

Wind mills and wind turbines have different size blades because:

• different wind speeds transfer amounts of kinetic energy dependent on blade speed

• different purposes require different designs

• different materials were available to build the windmill or wind turbine

• all of the above

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NGSS.MS-ETS1-1

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The wind is blowing, but the wind turbine is not moving, reasons for this are:

• the wind is too strong or is too weak for the size of the wind turbine

• maintenance on the turbine requires a lockdown

• bird migrations are taking place this week

• all of the above

Which answer best completes this sentence correctly? A flow chart that shows the energy transformation occurring in a wind turbine is best represented by:

• heat energy → electrical energy + sound energy

• gravitational potential energy → electrical energy + heat energy + sound energy

• solar energy → electrical energy + heat energy + sound energy

• kinetic energy → electrical energy + heat energy + sound energy

Tags

NGSS.MS-PS3-5

Which answer best completes this sentence correctly? Wind turbines do not contribute to the enhanced greenhouse effect while they are being used because:

• wind turbines produce only a minimal amount of waste heat energy.

• wind turbines do not produce any carbon dioxide gas.

• wind turbines are very efficient.

• wind turbines do not damage the ozone layer.

There are two wind turbines of different designs. One has a small number of large blades, the other has a large number of small blades.

Predict which turbine will be the most efficient.

ie. Which turbine will produce the most electricity?

Explain your answer:

Tags

NGSS.MS-ETS1-1

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What is the primary function of a turbine in a power generation system?

• To convert electrical energy into mechanical energy

• To convert mechanical energy into electrical energy

• To store energy for later use

• To distribute electrical energy to consumers

Tags

NGSS.MS-PS3-5