Wind Turbine

What do wind turbines, hydro electric dams, and ethanol plants have in common

• All produce electrical current without pollution

• All use generators to produce electrical current

• All convert gravitational potential energy to electric current

• All convert thermal energy to electrical energy

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NGSS.HS-PS3-3

Electric current is the flow of ______________________

• electrons

• protons

• neutrons

• both protons and neutrons

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NGSS.HS-PS1-1

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According to the Department of Energy website, all of the following are factors below affect the amount of SOLAR RADIATION (light energy) entering the Earth EXCEPT for one, which is it?

• Geographic Location

• Time of the Day

• Local Landscape

• Wind Speed

The "pressure" that pushes the electrons in a circuit is called the ____________________________________

• voltage

• current

• resistance

• power

_____________________ is the measurement of how many electrons are flowing in a point of a circuit.

• voltage

• current

• resistance

• power

Sunlight is made of bundles of radiant energy called

• electrons

• protons

• neutrons

• photons

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The main material that is used in the production of photovoltaic cells is __________________

• Carbon

• Silicon

• Uranium

• Hydrogen

The branch of dynamics that deals with the motion of air and other gaseous fluids, and the forces acting in motion relative to such fluids.

• aerodynamics

• kinematics

• mechanics

• statics

The diagram above shows a wind turbine. Which section of the wind turbine converts wind energy to electrical energy?

• blades

• generator

• rotor

• pitch system

Tags

NGSS.HS-PS3-3

What causes the production of wind?

• rotation of the Earth

• variations in the Earth's atmosphere

• the Sun heating the atmosphere

• all of the above

Tags

NGSS.MS-ESS2-6