environmentalWhich of the following is NOT an example of a renewable energy source?
When individual solar panels are wired together to form a large collection, it is called...
an array
Wind is caused by the movement of the Earth's ____________ which is caused by the heat from the sun.
atmosphere
Wind speed is generally __% stronger off the coast than it is on land.
20%
The amount of sunlight that the Earth gets in one day could power the world's needs for ____ years.
25 years
One of the big benefits of wind energy is that every turbine creates ____ times more energy than it uses.
28
Water levels will rise to a maximum "high tide" and then fall to a minimum "low tide" every __ hours.
6 hours
Ethanol and Biodiesel are two of the most common types of _____________
biofuels
What is the most consumed form of renewable energy used here in the United States?
biomass
Which 2 states in the U.S. get the least amount of sun every year
Alaska and washington
These are fuels that are composed of light oils found in plants...
Biodiesel fuels
In ______, water is heated by dark metal plates which are sealed by glass. It utilizes a greenhouse effect to trap heat
Flat-plate solar collectors
Currently, 80% of the world's energy production comes from ________
Fossil Fuels
Ocean energy is energy which can be harnessed through 2 mechanisms: Ocean Tides and ___________
Temperature differences between deep and shallow waters
A _____ is a barrier that restricts the flow of water by holding it in a reservoir & then releasing it to generate power
dam
one big drawback or disadvantage to using dams is that it may seriously disrupt _____ in the region
ecosystems
When struck by sunlight, the materials in photovoltaic (PV) cells release _________ to form an electric current.
electrons
Ethanol is currently mixed with gasoline to produce a fuel called
gasohol
What type of renewable energy uses the magma below the earth's surface to generate electricity?
geothermal
This type of power was used before the Industrial Revolution by harnessing the kinetic energy of water to spin a wheel
hydropower
Due to high volcanic activity, this country has successfully used Geothermal power for all of its electric/heating needs
iceland
Which of the following is NOT an example of a renewable energy source?
nuclear
Plants used to make biofuels will absorb CO2 when they are alive. This will ____ the CO2 released when they are burned
offset
When electricity is used to pump H20 from a low reservoir to an upper one to store H20 with potential energy, its called
pump storage
Which of the following is NOT a product that is used to produce biofuel?
rock
This strategy redirects river water to an alternate route. The water passes through a turbine & is returned to the river
run of the river
the use of PV cells is associated with which type of renewable energy?
solar power
Here in the northern hemisphere, which directions would we face solar panels in order to maximixe solar collection
south to east
Tides are a naturally-occurring phenomenon where forces given off by _______ cause the sea levels to rise and fall.
the moon
Dams that have been built at the entrance of a bay are using _____ energy as water is moving in and out of the sea.
tidal
To produce Geothermal electricity, ____ is sent to areas of high temps underground & then steam is used to spin turbines
water
Wind turbines don't generally exist by themselves. Instead, you'll find that they exist in groups known as...
wind farms
Areas of high ____ tend to be far away from areas that need energy & this type of renewable energy is very unpredictable
winds
Which of the following is NOT a benefit of using renewable energy sources?
They are always predictable
Which one of the following is NOT a use of Geothermal energy?
To burn fossil fuels and create power
