Wind Power!!!

Wind Power!!!

Let's review our last class!!

Poll

Who remembers what causes wind?

• I do!! ...with 100% accuracy!

• I do! ...I think

• I do....NOT.

• I wasn't here :(

Open Ended

Use the diagram to give a one sentence explanation for what causes wind.

Multiple Choice

So basically,

• hot air rises

• hot air sinks and cold air moves in

• hot air rises and cold air replaces it

• tree branches move and cause the air to move

Multiple Select

B is...

• A blade

• A turbine

• A low speed shaft

• A generator

Multiple Choice

Turbine blades..

• spin extremely fast

• are made of light-weight material

• are flat

Multiple Choice

The low speed shaft is connected to

• the high speed shaft

• the generator

• the gear box

Multiple Choice

If wind speeds exceed 90 kph,

• the turbine will shut down

• large amounts of electricity will be produced

• the generator will shift to overdrive

Multiple Select

The gear box is connected to the

• generator

• hub

• high speed shaft

Multiple Choice

The high speed shaft is connected to the

• blades

• generator

• anemometer

Poll

I understand how a wind turbine generates electricity.

• Yes.

• Kind of.

• No.

Horizontal vs Vertical Wind Turbines

Open Ended

List one advantage of vertical wind turbines.

Open Ended

Why are horizontal wind turbines used more frequently than vertical turbines? (1 reason)

Open Ended

In your opinion, what is the biggest advantage of wind power?

Open Ended

In your opinion, what is the biggest disadvantage associated with wind power?

Take a minute to study the diagram, and be prepared to discuss one take-away.

Open Ended

What is one takeaway from the diagram you observed?

Ok, let's sum it up!!

The next few slides will test your knowledge of wind, wind power, and wind turbines.

Multiple Choice

It is a 'new' form of energy

• true - it has been used only recently

• false - it has been used for millennia for sailing, grinding grains and pumping water

Multiple Choice

The wind speed is measured using an instrument called

• hydrometer

• manometer

• anemometer

• wind vane

Multiple Choice

What type of energy is wind energy?

• Renewable energy

• Non-renewable energy

• Conventional energy

• Commercial energy

Multiple Choice

What type of pollution do wind turbines cause?

• They pollute the air and the soil

• They do not pollute

• They produce noise and great visual impact

• They pollute water and soil

Multiple Choice

• A = shaft, B = gear, C = generator,

  D = wind, E = blades

• A = gears, B = shaft, C = blades,

  D = wind, E = generator

• A = generator, B = gear, C = shaft,

  D = wind, E = blades

• A = shaft, B = gear, C = generator,

  D = water, E = blades

Multiple Choice

The basic elements of wind turbines are:

• blades, shafts, gears and generators

• towers

• blades

• gears and blades