+
Related Flashcards
Cards In This Set
| Front | Back |
|
Do renewable generally have a greater or lesser toll on the environment?
|
Lesser.
|
|
Is renewable energy efficient or inefficient compared to other energy sources?
|
Inefficient.
|
|
What is solar energy?
|
The radiant energy we derive from the sun
|
|
What is passive solar heating?
|
Distributes the collected heat without the need for pumps and fans.
|
|
What is active solar heating?
|
A series of collection devices gather solar energy for heating water and space heating.
|
|
What is solar thermal electric heating?
|
It produces electricity by concentrating sunlight onto a fluid. the heated fluid changes water into steam, which powers a turbine.
|
|
What are photo voltaic cells?
|
Basic solar panels. They are only efficient at converting solar energy by 10 to 15 percent.
|
|
What is solar generated hydrogen?
|
By using solar power to split water molecules, we can use it for fuel.
|
|
What is a fuel cell?
|
A fuel cell is an electrochemical cell in which the reactants are supplied from external reservoirs.
|
|
What are some examples of indirect solar energy?
|
Biomass, wind, hydropower,and ocean thermal conversion.
|
|
What is biomass?
|
Biomass consists of wood, agricultural wastes, fast growing plants, and other organic materials that are the product of photosynthesis.
|
|
How do we use biomass to create energy?
|
It can be burned directly or converted to gas.
|
|
What is hydropower?
|
Hydropower uses the energy of flowing water to generate electricity.
|
|
How much of our energy does hydropower provide?
|
19 percent
|
|
What is tidal energy?
|
Tidal energy uses the change in water level between low tides and high tides to generate electricity.
|
