Wind Energy

Put the items below in correct sequence for the generation of electricity using the wind

• 1-2-3-4

• 2-1-3-4

• 2-3-1-4

• 2-4-3-1

A device that has blades that can be turned by water, wind, steam, or exhaust gas from combustion that turns a generator in an electricity-producing plant.

• generator

• turbine

• energy carrier

• energy source

When the wind blows, the air movement is caused by:

• the movement of the Earth

• the storms over the ocean

• day and night changes of sunlight

• local heating and cooling of the earth

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Land and sea breezes are examples of:

• warm air and cool air moving

• convection cell circulation of air

• warm air rising

• oceans are cooler than land

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Windmills and wind turbines move because:

• warm air rises against the blades

• convection currents push air onto the blades

• moving air pushes on the blade, slowing the air

• moving air going around the blades, pulls them along

Tags

NGSS.MS-ESS2-6

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-PS2-1

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

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

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

What is the primary source of wind energy?

• Solar energy

• Geothermal energy

• Nuclear energy

• Hydroelectric energy

Which component of a wind turbine converts kinetic energy into mechanical energy?

• Rotor blades

• Generator

• Nacelle

• Tower