Summer School Physical Science - CH 10 - Section III

Devices that use semiconductors to produce electricity from solar energy are __________.

• photometers

• fuel cells

• flash bulbs

• photovoltaic cells

Electricity produced by falling water is called _________.

• tidal energy

• thermodynamics

• hydroelectricity

• geothermal energy

Water that flows dųe to the gravitational forces among Earth, the Moon, and the Sun has energy referred to as _________.

• tidal energy

• hydroelectricity

• geothermal energy

• solar energy

Renewable organic matter, such as wood and rice hulls, are examples of _________.

• biomass

• fossil fuels

• nuclear fuels

• fission products

A disadvantage of using tidal energy is _____________.

• equipment corrosion

• it in inexpensive

• it is nonrenewable

• it causes air pollution

One reason alternative energy sources are needed is because __________.

• there is no limit to the supply of fossil fuels

• the energy needs of the world are decreasing

• the supply of fossil fuels is diminishing

• the population of the world is decreasing

Hydroelectric power produces electricity using.....

• Wind
• Sunlight
• Moving water
• Dung

The energy resource that is most affected by change in weather is_____________?

• geothermal 
• wind
• nuclear
• natural gas

What do we use most Windmills today?

• Grinding Flour

• Generating Electricity

• Using them to Sail

• Pumping oil or water

How do we use solar energy?

• For Light

• For Heat

• For Electricity

• All of the Above